Page 1
DATE:
11th
April 2014
PREPARED BY:
Ian Banbrook
WCM1100 (E1/T1)
WCM3100 (E3/DS-3)
WCM-Serial
Managed Ethernet Extender
V8.38
User Manual
DOCUMENT NO: 76-02-082
REVISION: J
Metrodata Ltd
Fortune House, Crabtree Office Village
Eversley Way, Egham Surrey, TW20 8RY, UK
Tel +44 1 784 744700
Fax: +44 1 784 744730
E-Mail: [email protected]
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METRODATA LTD
No part of this publication may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any
language or computer language, in any form or by any means,
electronic, mechanical, magnetic, optical, chemical, manual or
otherwise, without the prior written permission of
Metrodata Ltd, Fortune House,
Crabtree Office Village, Eversley Way,
3 of
Egham, Surrey, TW20 8RY, United Kingdom
.
DISCLAIMER
Metrodata Ltd makes no representations or warranties with respect
to the contents hereof and specifically disclaims any implied
warranties or merchantability or fitness for any particular purpose.
Further, Metrodata Ltd reserves the right to revise this publication
and to make changes from time to time in the content hereof without
obligation of Metrodata Ltd to notify any person of such revision or
changes.
Copyright Ó 2014 by Metrodata Ltd,
All Rights Reserved
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Document Revision History
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6th December 2010 A Document Created
29th June 2011 B Document updated for Software version
7.9 and merged with WCM3100 product
manual.
30th January 2012 C Upgraded for V7.14 application software,
and added support for WCM-Serial
product
21st August 2012 D Updated for 7.17 Application software and
base label updates
13th March 2013 E Updated for V8.12 Application Software
11th April 2013 F Updated for BERT/Loopback test modes
3rd June 2013 G Updated for 8.19 Application Software
8th July 2013 H Updated for 8.20 Application Software
Updated to add SNMP V2 support and
also the enhanced SFP diagnostic support
21st November 2013 I Updated for 8.31 application software
Added support for port rate limiting, VLAN
PCP priority override. Upgraded the
SNMP performance monitoring
11th April 2014 J Updated for 8.38 application software
Added improved support for loopback and
BERT testing for E1 and E3 interfaces
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TABLE OF CONTENTS
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1 INTRODUCTION ........................................................................................................ 12
1.1 Product Rear Panels........................................................................................................................................13
1.1.1 WCM1100 ...............................................................................................................................................13
1.1.2 WCM3100 ...............................................................................................................................................14
1.1.3 WCM-Serial ............................................................................................................................................14
1.2 Safety ...............................................................................................................................................................14
1.3 Electro Magnetic Compatibility ......................................................................................................................15
1.3.1 EN55022 Statement .................................................................................................................................15
1.3.2 FCC Declaration ......................................................................................................................................15
1.4 WEEE Directive ..............................................................................................................................................15
1.5 RoHS Compliance ...........................................................................................................................................15
2 INSTALLATION ......................................................................................................... 16
2.1 WCM Rear Panel ...........................................................................................................................................16
2.1.1 Mains Power ............................................................................................................................................16
2.1.2 DC Power ................................................................................................................................................16
2.1.3 Redundant DC Power ...............................................................................................................................17
2.2 Base Label and Bit Switches ...........................................................................................................................18
2.2.1 WCM1100 Base Label .............................................................................................................................18
2.2.2 WCM3100 Base Label .............................................................................................................................19
2.2.3 WCM-Serial Base Label ..........................................................................................................................19
2.2.4 Bit Switches .............................................................................................................................................20
2.2.4.1 Bit switch 1, Boot Mode 0 ...............................................................................................................20
2.2.4.2 Bit switch 2, Boot Mode 1 ...............................................................................................................20
2.2.4.3 Bit switch 3, DHCP.........................................................................................................................20
2.2.4.4 Bit switch 4, Framing ......................................................................................................................20
2.2.4.5 Bit switch 5, Timing Mode ..............................................................................................................21
2.2.4.6 Bit switch 6, Interface Mode ...........................................................................................................21
2.2.4.7 Bit switch 7, SFP Mode...................................................................................................................21
2.2.4.8 Bit switch 8, Factory Default ...........................................................................................................22
2.3 Rackmounting .................................................................................................................................................22
3 WCM APPLICATIONS ............................................................................................... 24
3.1 WCM Normal Mode .......................................................................................................................................24
3.2 WCM VLAN Trunk Mode..............................................................................................................................24
3.3 VLAN Trunk Mode .........................................................................................................................................25
3.4 S-Tag Mode .....................................................................................................................................................25
4 QUICK START CONFIGURATION ............................................................................ 26
4.1 Cold Start the Unit ..........................................................................................................................................26
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4.2 Access the WCM .............................................................................................................................................26
4.3 Logging onto WCM .........................................................................................................................................27
4.3.1 User Interface Navigation.........................................................................................................................28
4.4 Configure the WAN interface .........................................................................................................................29
4.4.1 WCM1100 E1 Configuration....................................................................................................................29
4.4.2 WCM3100 E3 Configuration....................................................................................................................30
4.4.3 WCM3100 DS-3 Configuration ................................................................................................................30
4.4.4 WCM-Serial Configuration ......................................................................................................................31
4.5 Set IP Address .................................................................................................................................................32
4.6 Set Default Route ............................................................................................................................................33
4.7 Save the Configuration....................................................................................................................................34
5 ADVANCED CONFIGURATION ................................................................................ 35
5.1 System Configuration......................................................................................................................................35
5.1.1 Setting the Time and Date ........................................................................................................................36
5.1.2 Setting the Node Name ............................................................................................................................37
5.1.3 Access Control .........................................................................................................................................38
5.1.3.1 Password ........................................................................................................................................38
5.1.3.1.1 Password Recovery ....................................................................................................................39
5.1.3.2 ‘View’ User ....................................................................................................................................39
5.1.3.3 Super Me ........................................................................................................................................39
5.1.3.4 TACACS+ ......................................................................................................................................39
5.1.3.4.1 Authentication ............................................................................................................................40
5.1.3.4.2 Timeout .....................................................................................................................................40
5.1.3.4.3 Retries........................................................................................................................................40
5.1.3.4.4 Server ........................................................................................................................................40
5.1.3.4.5 Encryption Key ..........................................................................................................................40
5.1.4 Welcome Screen ......................................................................................................................................41
5.1.5 Software Version .....................................................................................................................................43
5.1.6 Serial Number ..........................................................................................................................................43
5.1.7 Output Config ..........................................................................................................................................44
5.1.8 Input Config ............................................................................................................................................44
5.1.9 Warm Start ..............................................................................................................................................45
5.1.10
Cold Start ............................................................................................................................................45
5.1.11
Event Logs ..........................................................................................................................................45
5.1.11.1 System Event Log ...........................................................................................................................46
5.1.11.2 Alarm Event Log ............................................................................................................................46
5.1.11.3 Config Event Log ...........................................................................................................................47
5.2 Operational Modes ..........................................................................................................................................48
5.2.1 VLAN Mode ............................................................................................................................................48
5.2.2 Backplane Summary ................................................................................................................................48
5.2.3 Flow Control ............................................................................................................................................49
5.2.4 Max Frame Size .......................................................................................................................................49
5.2.5 Rate Limiting Mode .................................................................................................................................50
5.2.6 Priority Management ................................................................................................................................51
5.2.6.1 DSCP->C-Tag Mapping ..................................................................................................................51
5.2.6.2 Queue Priorities ..............................................................................................................................52
5.2.6.3 VLAN Override ..............................................................................................................................53
5.2.7 RSTP .......................................................................................................................................................54
5.2.7.1 Mode ..............................................................................................................................................54
5.2.7.2 Priority ...........................................................................................................................................54
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5.2.7.3 Max Age .........................................................................................................................................54
5.2.7.4 Hello Time .....................................................................................................................................55
5.2.7.5 Forward Delay ................................................................................................................................55
5.2.7.6 Tx Hold ..........................................................................................................................................55
5.2.7.7 Version ...........................................................................................................................................55
5.2.7.8 Status..............................................................................................................................................56
5.2.7.8.1 Port Role ....................................................................................................................................56
5.2.7.8.2 Port State ...................................................................................................................................56
5.3 Port Set Up Menu ............................................................................................................................................57
5.3.1 LAN Port .................................................................................................................................................58
5.3.1.1 State ...............................................................................................................................................58
5.3.1.2 Link Status .....................................................................................................................................58
5.3.1.3 Cable Tester....................................................................................................................................59
5.3.1.4 Auto Negotiation ............................................................................................................................59
(Max) ...........................................................................................................................................................59
5.3.1.5 Speed..............................................................................................................................................59
5.3.1.6 (Max) Duplex .................................................................................................................................60
5.3.1.7 Negotiated ......................................................................................................................................60
5.3.1.8 MDI/MDIX ....................................................................................................................................60
5.3.1.9 L2 Management ..............................................................................................................................61
5.3.1.9.1 Tagging and Priority ...................................................................................................................61
5.3.1.9.1.1 C-VLAN Mode....................................................................................................................61
5.3.1.9.1.1.1 VLAN Allocation .........................................................................................................62
5.3.1.9.1.1.2 Untagged......................................................................................................................62
5.3.1.9.1.1.3 Default VLAN .............................................................................................................62
5.3.1.9.1.1.4 Priority Source .............................................................................................................62
5.3.1.9.1.1.5 Default Priority ............................................................................................................63
5.3.1.9.1.1.6 Control C-VLAN .........................................................................................................63
5.3.1.9.1.2 QinQ/S-VLAN Mode ..........................................................................................................63
5.3.1.9.1.2.1 Port Mode ....................................................................................................................64
5.3.1.9.1.2.2 S-VLAN (Access Port) .................................................................................................64
5.3.1.9.1.2.3 Priority Source (Access Port) ........................................................................................64
5.3.1.9.1.2.4 Default Priority (Access Port) .......................................................................................65
5.3.1.9.1.2.5 S-VLAN Allocation (Trunk Port ).................................................................................65
5.3.1.9.1.2.6 EtherType (Trunk Port) ................................................................................................65
5.3.1.9.1.2.7 Control S-VLAN ..........................................................................................................65
5.3.1.9.2 OAM .........................................................................................................................................66
5.3.1.9.2.1 OAM Mode .........................................................................................................................66
5.3.1.9.2.2 OAM Status .........................................................................................................................67
5.3.1.9.2.3 OAM Counters ....................................................................................................................68
5.3.1.9.2.4 OAM Events........................................................................................................................68
5.3.1.9.3 RSTP .........................................................................................................................................69
5.3.1.9.3.1 RSTP Port Priority ...............................................................................................................69
5.3.1.9.3.2 RSTP Port Cost ...................................................................................................................69
5.3.1.9.3.3 RSTP Port Fast ....................................................................................................................69
5.3.1.10 Link Loss Forwarding .....................................................................................................................70
5.3.1.11 Rate Limiting ..................................................................................................................................70
5.3.1.11.1 Limiting ....................................................................................................................................71
5.3.1.11.2 CIR ...........................................................................................................................................71
5.3.1.11.3 CBS ..........................................................................................................................................71
5.3.1.12 Counters .........................................................................................................................................72
5.3.2 SFP Port ..................................................................................................................................................73
5.3.2.1 SFP Type ........................................................................................................................................73
5.3.2.2 State ...............................................................................................................................................73
5.3.2.3 Link Status .....................................................................................................................................73
5.3.2.4 Speed..............................................................................................................................................74
5.3.2.5 SFP Management ............................................................................................................................75
5.3.2.5.1 Device Details ............................................................................................................................75
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5.3.2.5.2 Notifications ..............................................................................................................................76
5.3.2.6 L2 Management ..............................................................................................................................77
5.3.2.7 Link Loss Forwarding .....................................................................................................................77
5.3.2.8 Rate Limiting ..................................................................................................................................77
5.3.2.9 Counters .........................................................................................................................................77
5.3.3 WCM1100 WAN Port ..............................................................................................................................78
5.3.3.1 State ...............................................................................................................................................78
5.3.3.2 Interface .........................................................................................................................................78
Timing .........................................................................................................................................................79
1.1.1.1...............................................................................................................................................................79
5.3.3.3 RX Sensitivity ................................................................................................................................79
5.3.3.4 Framing ..........................................................................................................................................79
5.3.3.5 CRC-4 ............................................................................................................................................79
5.3.3.6 sigNalling .......................................................................................................................................79
5.3.3.7 Allocation .......................................................................................................................................80
5.3.4 WCM3100 WAN Port ..............................................................................................................................81
5.3.4.1 State ...............................................................................................................................................82
5.3.4.2 Interface .........................................................................................................................................82
5.3.4.3 Timing ............................................................................................................................................82
5.3.4.4 TX Line Build Out (DS-3 mode Only).............................................................................................82
5.3.4.5 Framing ..........................................................................................................................................83
5.3.5 WCM-Serial WAN Port Configuration .....................................................................................................84
5.3.5.1 State ...............................................................................................................................................85
5.3.5.2 Interface .........................................................................................................................................85
5.3.5.3 Mode ..............................................................................................................................................86
5.3.5.4 Controls ..........................................................................................................................................86
5.3.5.5 State ...............................................................................................................................................86
5.3.6 VCG ........................................................................................................................................................87
5.3.6.1 State ...............................................................................................................................................87
5.3.6.2 Encapsulation .................................................................................................................................87
5.3.6.3 Encapsulation .................................................................................................................................88
5.3.6.3.1 HDLC ........................................................................................................................................88
5.3.6.3.1.1 HDLC FCS ..........................................................................................................................88
5.3.6.3.1.2 Strip MAC FCS ...................................................................................................................88
5.3.6.3.1.3 Payload Scrambler ...............................................................................................................89
5.3.6.3.2 X.86 ...........................................................................................................................................89
5.3.6.3.2.1 Strip MAC FCS ...................................................................................................................89
5.3.6.3.2.2 Payload Scrambler ...............................................................................................................89
5.3.6.3.3 GFP ...........................................................................................................................................90
5.3.6.3.3.1 GFP FCS .............................................................................................................................90
5.3.6.3.3.2 Strip MAC FCS ...................................................................................................................90
5.3.6.3.3.3 Payload Scrambler ...............................................................................................................90
5.3.6.4 LCAS/VCAT ..................................................................................................................................91
5.3.6.5 LCAS Status ...................................................................................................................................91
5.3.6.6 Layer 2 management .......................................................................................................................91
5.3.6.7 Link Loss Forwarding .....................................................................................................................92
5.3.6.8 Rate Limiting ..................................................................................................................................92
5.3.6.9 Counters .........................................................................................................................................92
5.4 V.24 Setup .......................................................................................................................................................93
5.4.1 Usage ......................................................................................................................................................93
5.4.2 Console Set Up ........................................................................................................................................94
5.4.2.1 Terminal Type ................................................................................................................................94
5.4.2.2 via Modem .....................................................................................................................................94
5.4.2.3 Baud Rate .......................................................................................................................................95
5.4.2.4 Parity ..............................................................................................................................................95
5.4.2.5 Data Bits .........................................................................................................................................96
5.4.2.6 Stop Bits .........................................................................................................................................96
5.4.2.7 Load New Config ...........................................................................................................................96
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5.5 Management Entity .........................................................................................................................................97
5.5.1 Proxying ..................................................................................................................................................97
5.5.1.1 Server Mode Proxy .........................................................................................................................98
5.5.1.1.1 Proxying ....................................................................................................................................98
5.5.1.1.2 Host Interface .............................................................................................................................98
5.5.1.1.3 DHCP ........................................................................................................................................98
5.5.1.1.4 IP Address..................................................................................................................................99
5.5.1.1.5 Network Mask ............................................................................................................................99
5.5.1.2 Client Mode Proxy ..........................................................................................................................99
5.5.1.2.1 Interface .....................................................................................................................................99
5.5.2 Interface ................................................................................................................................................ 100
5.5.2.1 State ............................................................................................................................................. 100
5.5.2.2 Physical Address ........................................................................................................................... 100
5.5.2.3 DHCP ........................................................................................................................................... 100
5.5.2.4 IP Address .................................................................................................................................... 101
5.5.2.5 Network Mask .............................................................................................................................. 101
5.5.2.6 AT Table ...................................................................................................................................... 101
5.5.2.7 Statistics ....................................................................................................................................... 102
5.5.2.8 c-VLAN ....................................................................................................................................... 102
5.5.2.9 QinQ/S-VLAN ............................................................................................................................. 102
5.5.2.10 TAG 802.1p Priority ..................................................................................................................... 102
5.5.3 IP........................................................................................................................................................... 103
5.5.3.1 Default TTL.................................................................................................................................. 103
5.5.3.2 DSCP Priority ............................................................................................................................... 103
5.5.3.3 Routing Table ............................................................................................................................... 104
5.5.3.3.1 Add a new Route ...................................................................................................................... 104
5.5.3.3.2 Delete a Route .......................................................................................................................... 105
5.5.3.4 Forwarding ................................................................................................................................... 105
5.5.3.5 Statistics ....................................................................................................................................... 105
5.5.4 UDP ...................................................................................................................................................... 107
5.5.4.1 Statistics ....................................................................................................................................... 107
5.5.5 TCP ....................................................................................................................................................... 107
5.5.5.1 Statistics ....................................................................................................................................... 108
5.5.5.2 Connection Table .......................................................................................................................... 108
5.5.6 SNMP Management ............................................................................................................................... 109
5.5.6.1 Read/Write/Trap Community ........................................................................................................ 109
5.5.6.2 Contact Person .............................................................................................................................. 109
5.5.6.3 Node Name ................................................................................................................................... 110
5.5.6.4 Location ....................................................................................................................................... 110
5.5.6.5 Managers ...................................................................................................................................... 110
5.5.6.6 Statistics ....................................................................................................................................... 111
5.5.6.7 Trap Alarms.................................................................................................................................. 112
5.5.6.7.1 LAN Port Trap Definitions ....................................................................................................... 112
5.5.6.7.2 SFP Port Trap Defintions .......................................................................................................... 113
5.5.6.7.3 VCG Port Trap Defintions ........................................................................................................ 114
5.5.6.7.4 WAN Port Trap Defintions ....................................................................................................... 114
5.5.7 Telnet / SSH .......................................................................................................................................... 116
5.5.7.1 Access Method ............................................................................................................................. 116
5.5.7.2 Timeout ........................................................................................................................................ 116
5.5.8 TFTP ..................................................................................................................................................... 117
5.5.8.1 TFTP Configuration ...................................................................................................................... 117
5.5.8.1.1 Client Mode ............................................................................................................................. 117
5.5.8.1.1.1 Remote IP.......................................................................................................................... 117
5.5.8.1.1.2 Get New Software ............................................................................................................. 117
5.5.8.1.1.3 Boot S/W Upgrade ............................................................................................................. 118
5.5.8.1.1.4 Get Confuration File .......................................................................................................... 119
5.5.8.1.1.5 Put Configuration File........................................................................................................ 119
5.5.8.1.1.6 put Report.......................................................................................................................... 120
5.5.8.1.2 Server Mode ............................................................................................................................. 120
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5.5.9 Ping ....................................................................................................................................................... 121
5.6 Saving the Configuration .............................................................................................................................. 122
5.7 Global Status ................................................................................................................................................. 123
5.7.1 Interface ................................................................................................................................................ 123
5.7.2 State ...................................................................................................................................................... 123
5.7.3 Test ....................................................................................................................................................... 124
5.7.4 Alarms ................................................................................................................................................... 124
5.7.4.1 LAN Port Alarms .......................................................................................................................... 125
5.7.4.2 SFP Port Alarms ........................................................................................................................... 125
5.7.4.3 VCG Alarms ................................................................................................................................. 126
5.7.4.4 E1/E3 WAN Ports ......................................................................................................................... 127
5.7.4.5 Serial WAN Ports ......................................................................................................................... 127
5.7.5 Mode, Speed, Duplex ............................................................................................................................. 128
5.7.6 VLAN Allocation .................................................................................................................................. 128
5.8 ALARM EXTENSION ................................................................................................................................. 129
5.8.1 Clear Alarm Outputs .............................................................................................................................. 129
5.8.2 Alarm Actions........................................................................................................................................ 129
5.9 Circuit / Flow Tests ....................................................................................................................................... 131
5.9.1 Port Loops ............................................................................................................................................. 131
5.9.1.1 Physical Loops.............................................................................................................................. 131
5.9.1.2 Timeout ........................................................................................................................................ 132
5.9.1.3 LAN / SFP Loops ......................................................................................................................... 132
5.9.1.3.1 Phy Line Loop (OL) ................................................................................................................. 132
5.9.1.3.2 LAN External Loop ( XLL ) ..................................................................................................... 132
5.9.1.3.3 LAN/SFP OAM-RL loop.......................................................................................................... 132
5.9.1.4 VCG Loops .................................................................................................................................. 133
5.9.1.4.1 VCG OAM-RL loop ................................................................................................................. 133
5.9.1.5 WAN Port..................................................................................................................................... 133
5.9.1.5.1 WAN Remote Loop.................................................................................................................. 133
5.9.1.5.2 LL, Local Loop ........................................................................................................................ 134
5.9.1.5.3 OL, Outside Loop ..................................................................................................................... 134
5.9.2 Test Pattern ............................................................................................................................................ 135
5.9.2.1 State ............................................................................................................................................. 136
5.9.2.2 Pattern .......................................................................................................................................... 136
5.9.2.3 Polarity ......................................................................................................................................... 136
5.9.2.4 Results .......................................................................................................................................... 137
5.9.2.4.1 Test Seconds ............................................................................................................................ 137
5.9.2.4.2 Out of Sync Seconds ................................................................................................................ 137
5.9.2.4.3 Bit Errors ................................................................................................................................. 137
5.9.2.4.4 Bit Error Rate ........................................................................................................................... 138
5.9.2.4.5 Clear Screen ............................................................................................................................. 138
5.9.2.4.6 Inject Error ............................................................................................................................... 138
5.10 Performance Data ..................................................................................................................................... 139
5.10.1
Interface ............................................................................................................................................ 139
5.10.2
Display Mode .................................................................................................................................... 139
5.10.3
Summary Style .................................................................................................................................. 140
5.10.4
Physical Layer Stats .......................................................................................................................... 140
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1 INTRODUCTION
This manual instructs the user in the use of the WCM1100 Managed Ethernet Extender
over E1, WCM3100 Managed Ethernet Extender over E3/DS-3 or WCM-Serial Managed
Ethernet Extender over Serial Connections This guide describes the functionality of
Software Release 8.31.
Throughout this document, the term WCM will be used to describe generic functions,
whilst WCM1100, WCM3100 or WCM-Serial will be used for product specific areas.
The Metrodata WCM allows for the extension of an Ethernet Service over a Wide Area
Network Connection. The WCM is a managed unit allowing for the effective demarcation
between LAN and WAN services. Management of the WCM is achieved using either
Telnet or SNMP via either the LAN/SFP or WAN ports.
In cases where management is not required, or undesired, the WCM can operate
standalone, with simple configuration options provided using bit switches located on the
underside of the unit.
The Metrodata WCM is a managed, multi port Ethernet Switch with a WAN uplink. The
WCM provides two 10/100/1000BaseT Auto Negotiating, Auto Switching Ports as well as a
single SFP port supporting either 1000Base-X or 100Base-FX SFP modules. The WCM
operates as a layer 2 bridge and as such may be used to extend a LAN segment over a
WAN link.
The WCM has an internal LAN switch offering full wire-speed switching between ports.
The WCM uses MAC address filtering to filter all local traffic and only forward traffic
destined for remote stations. Each of the WCM’s LAN ports support automatic cross-over
switching and will therefore connect directly to a Hub/Switch/Router or PC End Station.
The WCM has support for both tagged and untagged frames, with both VLAN C-Tag, and
Provider Bridge S-Tag (QinQ) modes supported.
The WCM supports either IP DSCP, or IEEE802.1p based traffic prioritisation with
outgoing traffic being queued in one of four priority queues.
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The WCM supports link OAM, IEEE802.3ah and RSTP for loop prevention.
The WCM encapsulates the Ethernet traffic for transport across the WAN link. The WCM
supports HDLC in all cases, and for framed modes X.86 and GFP encapsulations are also
supported. Internal packet buffers enable the WCM to smooth out bursty traffic and
prevent packet loss as the higher layer protocols rate adapt to the WAN capacity.
The WCM1100 E1 port supports unframed, framed (with or without CRC-4 ) or fractional
(Nx64k) operating modes.
The WCM3100 supports unframed or framed operation, supporting E3 G.832 or DS-3 CBit Framing modes.
The WCM-Serial supports unframed operation only, and normally operates as a serial DTE
interface for connection to a carrier NTU. An optional DCE mode, allows for back to back
operation.
1.1 Product Rear Panels
The WCM device is a compact unit, as shown below, occupying half a shelf in a traditional
19inch rack. All power and data connectors and LED status indicators are accessible from
the rear of the unit.
1.1.1 WCM1100
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1.1.2 WCM3100
1.1.3 WCM-Serial
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1.2 Safety
The WCM must not be connected to cabling which would be required by BS6701 to
equipped with over voltage protection. The following ports on the WCM are designated
SELV ( Safety Extra Low Voltage ) within the scope of EN41003
Terminal Port 9 Way D-Type
LAN Port(s) RJ45 10/100/1000BaseT
SFP
These ports must only be connected to SELV ports on other equipment in accordance with
EN60950 clause 2.3
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1.3 Electro Magnetic Compatibility
In order to ensure EMC compliance, all signal and data cables must be shielded and use
screened connector shells. The cable screens must be terminated to the screened
connector shell and not connected to any pins of the connector. Failure to use the correct
connectors may compromise EMC compliance.
1.3.1 EN55022 Statement
The WCM is a Class A product. In a domestic environment, this product may cause radio
interference, in which case the user will be required to take adequate measures.
1.3.2 FCC Declaration
This equipment has been tested and found to comply with the limits of the Class A digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the Installation and Operation
manual, may cause harmful interference to the radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.
1.4 WEEE Directive
The WCM is covered by Directive 2002/96/EC ( OJ:L37/24/2003 ) on Waste Electrical and
Electronic Equipment ( WEEE ) Units must therefore not be disposed of in standard
landfill.
1.5 RoHS Compliance
The WCM is compliant with the EU RoHS Directive 2002/95/EC. The RoHS directive bans
the use of six hazardous materials in products placed on the market after July 1st 2006.
The six banned materials are Lead, Mercury, Hexavalent Chromium, Polybrominated
Biphenys, Polybrominated Diphenyl Ethers and Cadmium.
The WCM is manufactured using a lead free soldering process and as such is fully RoHS
6/6 compliant.
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2 INSTALLATION
2.1 WCM Rear Panel
The WCM is available with either AC Mains or DC power options.
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2.1.1 Mains Power
The WCM has an internal power supply and is supplied via an IEC mains power socket.
The WCM operates over the wide range 100 to 250V AC and draws less than 6 watts.
2.1.2 DC Power
The WCM is available with an internal DC power supply with two variants available,
DC -48V ( 36 to 72V DC )
DC 24V ( 7 to 36V DC )
DC powered units have an external earth stud which must be securely connected to an
earth connection to ensure EMC compliance.
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2.1.3 Redundant DC Power
The WCM is optionally available with a dual input, 1+1 redundant DC (-48V) power supply
The redundant DC power supply operates of two
independent -48V supplies, which feed a pair of 1+1
redundant DC power modules inside the unit. This
option therefore provides resiliency in the event of both
external power feed failure, or of an individual power
module failure.
The internal DC power modules are polarity protected,
and internally fused.
Metrodata recommend the use of fork terminals, ( not
supplied ) for connection of power, as shown:
However, if necessary, the stripped and twisted ends
of the power wires may be inserted into the screw
terminals, as shown. Ensure no stray strands of bare
wire can touch either the unit casing, or the other
supply terminal.
The unit must be earthed using the external M4 Stud
and securing screws. EMC performance may be
degraded if a proper earth connection is not provided.
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2.2 Base Label and Bit Switches
On the underside of the WCM unit there are bit switches which may be used to configure
certain functions within the unit. The bit switches are used to configure the default settings
following a cold start.
2.2.1 WCM1100 Base Label
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2.2.2 WCM3100 Base Label
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2.2.3 WCM-Serial Base Label
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2.2.4 Bit Switches
The bit switches are used to configure the default settings following a cold start, either
from the console, or by powering on with switch 8 in the OFF position.
2.2.4.1 Bit switch 1, Boot Mode 0
This bit switch is used to determine whether the IP proxy management mode is enabled or
not. IP proxy mode utilises OAM to remotely manage a WCM device.
ON Proxy Mode Disabled
OFF Proxy Mode Enabled,
2.2.4.2 Bit switch 2, Boot Mode 1
This bit switch is ignored if Proxy Mode is disabled. When Proxy mode is enabled, this
switch setting determines whether the unit acts as Master/Server, or Slave/Client.
ON Proxy Mode, Server
OFF Proxy Mode, Client
2.2.4.3 Bit switch 3, DHCP
This bit switch enables DHCP for IP address allocation.
ON DHCP Disabled
OFF DHCP Enabled
2.2.4.4 Bit switch 4, Framing
This bit switch determines the operating mode of the PDH WAN interface.
ON E1 G.703, G.704 Framed with CRC-4 Enabled (WCM1100)
E3 G.703, G.832 Framed (WCM3100)
DS-3 G.703 C-Bit Framed (WCM3100)
OFF E1/E3/DS-3 G.703 Unframed
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This bit switch is unused on the WCM-Serial which does not offer framed modes.
2.2.4.5 Bit switch 5, Timing Mode
This bit switch determines the timing source for the PDH WAN interface
ON Internal Timing
OFF Loop Timing
Note, it is vital that one end of PDH WAN link is set to internal, as loop/loop will give an
unstable system.
This bit switch is unused on the WCM-Serial, timing is defined by the auto sensing cable
type used.
2.2.4.6 Bit switch 6, Interface Mode
This bit switch selects between the two optional interface modes,
For WCM1100, E1 Interface
ON BNC, Unbalanced 75Ohm
OFF RJ45, Balanced 120Ohm
For WCM3100,
ON E3 G.703
OFF DS-3 G.703
This bit switch is not used on the WCM-Serial as the interface mode is automatically
selected by the auto sensing cables.
2.2.4.7 Bit switch 7, SFP Mode
This bit switch is used to force the configuration of the SFP interface to match the SFP
type inserted.
ON 1000Base-X SFP
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OFF 100Base-FX SFP
2.2.4.8 Bit switch 8, Factory Default
This bit switch will clear the stored configuration and return the unit to the default settings
as defined by the bit switches.
ON Normal Operation
OFF Factory Cold Start, load default settings
The main use of this switch it to ensure a unit can be accessed in the event that the
password has been lost.
2.3 Rackmounting
The WCM is a standalone, desktop unit however it may be mounted in a standard 19 inch
rack using the rack mounting kit, part number 80-05-256.
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To mount the WCM in the 19 inch rack mount adaptor first remove the two M3x12 screws
and washers from the rear panel of the unit. Then align the WCM rear panel with the
mounting bracket, and secure the unit to the adaptor using the previously removed screws.
When rack mounting, please ensure that the bit switches on the underside are correctly
configured prior to mounting the units in the rack.
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3 WCM APPLICATIONS
3.1 WCM Normal Mode
In this application, the WCM is operating with Traffic Isolation Disabled. In this mode, the
WCM acts as a simple, layer 2, 5 port switch with packetsswitched based on MAC address
alone. The WCM supports both local and remote switching, and forwarding over the WAN
trunk.
Management traffic is not isolated from the through data traffic, and both units may be
managed from any port.
3.2 WCM VLAN Trunk Mode
In this application, WCM-A is connected to a VLAN enabled LAN switch. The LAN switch
is configured as a VLAN trunk and all packets are tagged with VLAN Tags. WCM-A is
operating with VLAN support enabled but all ports defined as Trunks. A VLAN ID is
allocated to the Manager and thus management traffic is isolated from the user traffic and
the management VLAN, in this case 101, can be used to manage the WCM’s. WCM1100B is configured with VLAN support enabled but each port is configured as an access port
and isolated to a single VLAN.
Trunk ports expect packets to be tagged, whilst access ports expect untagged packets and
will add tag and priority to incoming packets.
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3.3 VLAN Trunk Mode
In this mode, both WCM units have VLAN support enabled, and all ports are defined as
access ports VLAN 101 is used as the management VLAN and in unit WCM1100-A the
VLAN group 101 includes the LAN Port 1, the Manager and the PDH WAN port. At the
remote end, The SFP port is disabled to prevent customer access to the WCM manager.
3.4 S-Tag Mode
In this mode, the WCM adds a, port based, S-TAG to all incoming traffic. Where customer
traffic is already VLAN tagged, this leads to double tagging or ‘QinQ’ operation. The use
of the S-TAG enables the carrier to isolate customer traffic. Carrier management traffic is
carried with a separate S-Tag giving management access to both units, and on the
customer site the external management access is disabled.
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Signal
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4 QUICK START CONFIGURATION
The following guide gives a simple, quick start introduction to configuring the WCM for
Normal Mode operation as shown in section 2.1
4.1 Cold Start the Unit
When a WCM is shipped from the factory it will be in the default condition, however with
previously used equipment this may not be the case. To return the unit to the default state
will require a power cycle and configuration of the bit switches.
The underside of the unit has a set of accessible bit switches and a label, as shown below
for the two products:
Ensure all other bit switches are in the desired default positions.
To cold start the unit, first set bit switch 8 (Cold Start) to the OFF (Return to Default
Settings) position. Power up the WCM, wait for the Status LED to come on in any state,
and then power down. To return to normal mode, return bit switch 8 to the ON (Normal
Operation) position.
4.2 Access the WCM
Initial access to the WCM is made using the Terminal Port on the rear panel of the unit.
The Terminal port defaults to 19200baud, 8bit, No Parity, 1 Stop Bit. The 9 Way D-Type
is configured as a DCE port with standard pin out as shown below:
1 out DCD
2 out RXD*
3 In TXD*
4 In DTR
5 Signal Ground*
6 out DSR
7 In RTS
8 out CTS
Figure 3.3 Terminal Port Connector Pin Configuration
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4.3 Logging onto WCM
The initial access to the WCM must use a terminal connected to the terminal port.
The WCM has a password protected, menu driven user interface. When a management
session is connected to the WCM, the welcome banner will be displayed as shown:
Metrodata WCM1100: Local connection to “”
Password (‘view’ to view only ) :
or
Metrodata WCM3100: Local connection to “”
Password (‘view’ to view only ) :
or
Metrodata WCM-Serial: Local connection to “”
Password (‘view’ to view only ) :
At the prompt, enter the password to gain access to the WCM. The default password is
the product name, ie “wcm1100”, “wcm3100” or “wcm-serial”. For security, the password
is obscured with an asterisk (*) being displayed for each character typed. An incorrect
password will lead to the welcome banner being redisplayed. A correct password will lead
onto the main set up menu as shown below:
Metrodata WCM3100 "" Alarms: Major
MAIN SET-UP
Global status <display>
alarm eXtension <menu>
Operational Modes <menu>
Port set-up <menu>
V.24 set-up <menu>
Management Entity <menu>
System <menu>
Update EEPROM
circuit/flow Tests <menu>
performance Data <menu>
First CAPITAL - select item
<escape> - exit menu
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4.3.1 User Interface Navigation
The WCM user interface is a simple, menu based interface. Each selectable item may be
selected by typing the first capital of the option, e.g. for “Data port set-up” type <D>1 or
<d>. Sometimes, where multiple items have the same starting letter the selection capital
will not be the first letter, e.g. “alarm eXtension” which is selected with <X> or <x>.
On the right side of the display is a list of what is below each item. This could be:
<menu> This indicates a sub-menu will be entered
<display> This indicates an information screen will be displayed. This may be
status or statistics.
Additional keys may be used to navigate the menu system:
<ESC> This will exit the current menu, or log out from the main set up menu.
<SPACE> This will toggle through a list of selectable options
<ENTER> This will select an item
1
Encapsulating an item within < > indicates a key press is required, for example <D>
means type D.
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4.4 Configure the WAN interface
In order for two WCM units to communicate they must be connected using the WAN port.
The WAN interface must be configured to match the network NTU configuration.
The WAN port is configured by selecting the Port Set-Up Menu,
Metrodata WCM3100 "" Alarms: Major
PORT SET-UP
lan1 <menu>
lan2 <menu>
SFP <menu>
VCG <menu>
WAN <menu>
First CAPITAL - select item
<escape> - exit menu
4.4.1 WCM1100 E1 Configuration
Metrodata WCM1100 "" Alarms: Major
WAN
State Up
Interface E1 Unbal (BNC)
Timing Internal
rx sEnsitivity Short-haul
Framing Framed
crc-4 Enabled
sigNalling Disabled
First CAPITAL - select item
<escape> - exit menu
Ensure that the interface, timing and framing modes are correctly set to match the network
NTU settings.
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4.4.2 WCM3100 E3 Configuration
The WCM3100 WAN E3 port configuration menu is shown below:
Metrodata WCM3100 "" Alarms: Major
WAN
State Up
Interface E3
Timing Internal
Framing G.832
First CAPITAL - select item
<escape> - exit menu
For the E3 interface, the framing mode ( G.832 or Unframed ) must be configured as well
as the interface timing.
4.4.3 WCM3100 DS-3 Configuration
The WCM3100 WAN DS-3 port configuration menu is shown below:
Metrodata WCM3100 "" Alarms: Major
WAN
State Up
Interface DS3
Timing Internal
tx line Build-Out 0-225ft
Framing C-Bit
First CAPITAL - select item
<escape> - exit menu
When DS-3 mode is selected, the framing mode ( C-Bit or Unframed ) must be set as well
as the interface timing. Additionally, the transmitter power must be configured by setting
the line build out to support either short ( <225ft ) or longer cable runs.
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4.4.4 WCM-Serial Configuration
The WCM-Serial has a multi-serial interface which can support many different electrical
interface standards. The multi serial interface is presented on an HD60 connector and is
compatible with standard Cisco serial cables. The interface automatically senses the
cable type that is connected, and configures itself accordingly.
The WAN Configuration Menu when a CAB-V35-FC is fitted is shown below:
Metrodata WCM-Serial "" Alarms: Major
WAN
State Up
interface V.35
mode DCE
sPeed 2048kbps
cTs control On
CD control On
DSR control On
RTS state Off
DTR state Off
First CAPITAL - select item
<escape> - exit menu
The WCM-Serial always operates in an unframed mode.
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4.5 Set IP Address
From the Main Setup Menu, select Management Entity,
Metrodata WCM3100 "" Alarms: Major
MANAGEMENT ENTITY
proXying <menu>
intErface <menu>
IP <menu>
UDP <menu>
tCp <menu>
sNmp <menu>
Telnet/SSH <menu>
tFtp <menu>
Ping <display>
First CAPITAL - select item
<escape> - exit menu
and then the Interface Menu.
Metrodata WCM3100 "" Alarms: Major
INTERFACE
State Up
Phys. address 0:c0:81:0:14:64
DHCP Off
IP addr 192.168.0.1
Net mask 255.255.255.0
AT table <display>
sTats. <display>
c-VLAN None
First CAPITAL - select item
<escape> - exit menu
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To change the IP settings for installation:
DHCP For operation in a DHCP enabled network and automatic
IP address allocation set this parameter to ON to enable
DHCP address allocation.
IP Address If DHCP is not used, you must manually assign the
required IP address for correct installation into the
network. (Note the default IP address is set to
169.254.42.42)
Net mask If DHCP is not used, you must assign the required network
mask for correct installation into the network.
4.6 Set Default Route
From the Main Setup Menu, select Management, then IP,
33 of
Metrodata WCM3100 "" Alarms: Major
IP
default TTL 32
DSCP priority 0
Routing table <display>
Forwarding Disabled
Stats. <display>
First CAPITAL - select item
<escape> - exit menu
then select the Routing Table menu and set the default route,
Metrodata WCM3100 "" Alarms: Major
Destination Next Hop I/f Type Prot. Age Mask
-----------------------------------------------------------------------------
192.168.0.0 0.0.0.0 Mgmt direct local 80636 255.255.255.0
A - add entry
D - delete entry
any other key to exit:
Add route.
Destination: 0.0.0.0
Mask: 0.0.0.0
Next-hop: 192.168.0.254
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Metrodata WCM3100 "" Alarms: Major
Destination Next Hop I/f Type Prot. Age Mask
-----------------------------------------------------------------------------
192.168.0.0 0.0.0.0 Mgmt direct local 80764 255.255.255.0
0.0.0.0 192.168.0.254 Mgmt indirect local 0 0.0.0.0
A - add entry
D - delete entry
any other key to exit:
Add a new route table entry with destination and mask as 0.0.0.0 and configure the next
hop as required.
Note, that the default route will be added automatically if DHCP is enabled.
4.7 Save the Configuration
From the Main Set Up menu, select the Update EEPROM option to save the configuration
to non volatile memory. Answer ‘Y’ at the prompt.
Metrodata WCM3100 "" Alarms: Major
MAIN SET-UP
Global status <display>
alarm eXtension <menu>
Operational Modes <menu>
Port set-up <menu>
V.24 set-up <menu>
Management Entity <menu>
System <menu>
Update EEPROM
circuit/flow Tests <menu>
performance Data <menu>
First CAPITAL - select item
<escape> - exit menu
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5 ADVANCED CONFIGURATION
5.1 System Configuration
The system menu provides the basic administrative configuration items for the WCM and
should be configured first. The System Menu is shown below:
Metrodata WCM3100 "" Alarms: Major
SYSTEM
Time & date <menu>
Node name
Access Control <menu>
weLcome screen <menu>
Software version Main 8.38 / Boot 5.5
Serial Number 73192
Output config <display>
Input config
Warm start
Cold start
Event logs <menu>
First CAPITAL - select item
<escape> - exit menu
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5.1.1 Setting the Time and Date
The WCM does not provide a non volatile Real Time Clock, instead it uses NTP to set the
date and time following power up. In applications where NTP is not available, the WCM
defaults to providing a simple uptime display.
To configure the NTP parameters, select the “Time and date” menu from the “System”
menu. The menu is as below:
Metrodata WCM3100 "" Alarms: Major
TIME & DATE
local Time 22:35:42
local Date Sat 1/1/2000
system up time 0d22h35m42s
time Zone GMT+0
NTP server 0.0.0.0
last sync never
Sync now
First CAPITAL - select item
<escape> - exit menu
If NTP is available, then the following parameters need to be set,
Time Zone +/-12 Since NTP uses GMT, time zone adjustment allows the
correct time to be configured wherever the units are
deployed globally.
NTP Server Enter the IP address of the network NTP server.
According to the NTP protocol, the WCM will wait for a random period of between 1 and 5
minutes before requesting an NTP update.
If NTP is not available, then the user can manually enter the time and date, however since
these are non volatile and not maintained over a power cycle it is not recommended.
Additionally the system up time parameter is provided.
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5.1.2 Setting the Node Name
To enable identification of the WCM, it is useful to enter a meaningful name for the unit.
The node name is entered as a string of up to 32 alpha numeric characters, including
spaces.
Metrodata WCM3100 "WCM Node A" Alarms: Major
SYSTEM
Time & date <menu>
Node name WCM Node A
Access Control <menu>
weLcome screen <menu>
Software version Main 8.38 / Boot 5.5
Serial Number 73192
Output config <display>
Input config
Warm start
Cold start
Event logs <menu>
First CAPITAL - select item
<escape> - exit menu
Once a node name has been defined, in this case “WCM Node A” it is displayed at the top
of each user menu to assist the user identify which device is currently connected.
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5.1.3 Access Control
The access control menu defines the security policy for management access to the WCM
unit.
The Access Control menu is shown below:
Metrodata WCM3100 "WCM Node A" Alarms: Major
ACCESS CONTROL
Password ********
'View' user Enabled
Super Me No
TACACS+ <menu>
First CAPITAL - select item
<escape> - exit menu
5.1.3.1 Password
The local password for the WCM may be changed from the access control menu. The
default password is the product name, ie “wcm1100”, “wcm3100” or “wcm-serial”, however
for deployment a more secure password may be required.
To change the unit password, select “Password” from the system menu. The WCM will
display the following:
Enter new password
Password >
Enter the new password, up to 16 alphanumeric or printable ascii control characters. For
security, each character is shown on the screen as an asterisk “*”. Once the new
password is entered, the display changes to
Enter new password
Password > ***********
Verify>
Re-enter the new password. If the password is correctly verified the unit will assume the
new password for the next logon.
For security, passwords are stored in encrypted form within the unit configuration files that
may be uploaded using TFTP.
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5.1.3.1.1 Password Recovery
If for any reason, the password for access to the WCM is lost, the unit may be cold started
by using bit switch 8 which will return the unit to the default factory configuration. The
default factory password is the product name, “wcm1000”, “wcm3100” or “wcm-serial”.
Note, that returning the unit to factory default will erase the configuration memory and all
configuration items including IP address will be lost.
5.1.3.2 ‘View’ User
The WCM supports two levels of access: admin and view. An Admin user has full access
rights over the WCM configuration. A view user has read only access to the configuration.
In some cases it may be desirable to prevent the “view” user access.
To disable the view user access, select the View User menu item and toggle the option to
disabled. It will now not be possible to log in with the “view” password.
5.1.3.3 Super Me
The super me option will raise the user level to super user which will enable some extra
diagnostic and debug screens.
5.1.3.4 TACACS+
Where greater access control and security is required, the WCM units support TACACS+
for central password authentication.
Metrodata WCM3100 "" Alarms: Major
TACACS+
Authentication TACACS+,Local
Timeout 3
Retries 3
Server 192.168.100.45
Encryption key ************
First CAPITAL - select item
<escape> - exit menu
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5.1.3.4.1 Authentication
The WCM supports three modes of password access control and authentication. The
options are:
Local (Default) The password access control is handled locally by the
WCM unit and the unit password should be used to log in.
TACACS+, Local In this mode, the WCM unit will attempt to contact the
TACACS+ server for authentication, however if the server
cannot be accessed, it will fall back to local password
administration.
TACACS+ Use TACACS+ for password authentication. If the server is
unavailable, access to the unit will not be allowed.
5.1.3.4.2 Timeout
The timeout defines how long the WCM unit will wait for a response from the TACACS+
server. The timeout is specified in seconds in the range 1 to 90 seconds.
5.1.3.4.3 Retries
This defines the number of attempts the WCM unit will make when trying to access the
TACACS+ server. The valid range is 1 to 10.
5.1.3.4.4 Server
This defines the IP address of the TACACS+ Authentication server. When a login attempt
is made, this server will be accessed.
5.1.3.4.5 Encryption Key
This key is used by both the WCM and the TACACS+ server to provide a secure,
encrypted password exchange and authentication. This must be set the same on both
WCM and Server.
For security reasons, the Encryption key is shown as a string of * to prevent the key being
read by unauthorized users.
Note, when no key has been defined, the entry is empty.
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The Encryption key may be changed as follows:
Enter new string
Password> **********
Verify> **********
In order for the new key to be accepted, both strings must match, a mismatch will lead to
the warning message:
Invalid entry - any key to continue
5.1.4 Welcome Screen
By default, the initial access to the WCM will display the welcome banner as shown below:
Metrodata WCM: Local connection to “WCM Node A”
Password (‘view’ to view only ) :
However, it is possible to customize the welcome banner to give further information about
the unit, or to inform the user of access restrictions.
To configure the welcome screen select the “welcome screen” menu item which will lead
to the menu:
Metrodata WCM "WCM Node A" Alarms: Major
WELCOME SCREEN
Welcome screen Disabled
First CAPITAL - select item
<escape> - exit menu
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If a customized welcome is required, change to enabled and the menu will change as
shown below:
Metrodata WCM "WCM Node A" Alarms: Major
WELCOME SCREEN
Welcome screen Enabled
1st line
2nd line
3rd line
4th line
5th line
6th line
7th line
8th line
Clear all text
Display screen <display>
First CAPITAL - select item
<escape> - exit menu
To configure the Welcome Screen enter each line using alpha numeric characters with
each line supporting upto 80 characters as in the example below:
Metrodata WCM "WCM Node A" Alarms: Major
WELCOME SCREEN
Welcome screen Enabled
1st line This is an example
2nd line of a Welcome Banner
3rd line
4th line Welcome to the WCM
5th line
6th line
7th line Please enter the password>
8th line
Clear all text
Display screen <display>
First CAPITAL - select item
<escape> - exit menu
Once the welcome message has been defined, it may be displayed using the display
screen option, and for this example, the Display Screen shows:
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Metrodata WCM3100 "WCM Node A" Alarms: Major
WELCOME SCREEN
--------------
This is an example
of a Welcome Banner
Welcome to the WCM
Please enter the password>
<Escape> - exit, other key - refresh
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which leads to a welcome banner displayed as follows when a management session is
started up:
This is an example
of a Welcome Banner
Welcome to the WCM
Please enter the password>
password ('view' to view only):
5.1.5 Software Version
This display only item shows the software version that is running on the unit. This will
usually be required when requesting technical support on the products.
5.1.6 Serial Number
The serial number item shows the serial number of the unit.
Note, this item was first introduced in V8.38 software. Units upgraded from previous
versions will not have this value programmed. The serial number may be programmed in
super user mode if necessary.
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5.1.7 Output Config
Normally TFTP is used to upload/download the system configuration files, however the
text file may be output to the screen.
To output the configuration file, you will need a terminal emulator such as Tera Term or
Hyper Term which have the capability of capturing the screen output.
When output config is selected, the following prompt is displayed
Metrodata WCM3100 "WCM Node A" Alarms: Major
Start capture then press a key.
After transfer, stop capture then press another key.
At this point, start the screen capture and then press a key to output the configuration file
to the screen. Once the complete file has been displayed, stop the capture and then press
a key to continue.
5.1.8 Input Config
The input configuration menu item allows a configuration file to be loaded onto the WCM
unit using the serial port. The configuration file for use may have been generated using
either the serial output configuration option, or have been saved via TFTP.
To load the configuration file, the terminal emulator application must be capable of sending
a text file to the serial port.
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Selecting the Input Config menu item leads to the following prompt
Send file. Esc to End
At this point, send the text file and once it is complete type <ESC> to terminate the
transfer. At this point, the WCM will validate the configuration and then reboot using the
new configuration.
Please note, that with some terminal emulation packages, if error messages are
encountered, it may be necessary to set the character delay to 10mS
5.1.9 Warm Start
A warm Start will force the WCM to restart and reload the configuration from the EEPROM.
Note, any changes to configuration that have not been saved to the EEPROM will be lost.
When a user issues a warm start request, the WCM will indicate that a warm start is in
progress and then close the connection.
5.1.10 Cold Start
Cold Start will return the WCM to the factory default condition, as defined by the bit switch
settings.
Note, that a cold start will erase IP addresses and Routing Table entries and it is therefore
highly likely that remote access will be lost following a cold start.
For this reason a cold start request must be confirmed before it is actioned, and the user
must type Y at the prompt
Returns all settings to defaults!
Are you sure?
Once confirmed the unit will restart, and default the internal non volatile configuration
memory returning the unit to the factory default state.
5.1.11 Event Logs
The event logging system on the WCM units provide a diagnostic capability to assist
problem diagnosis when errors or faults occur in the network.
The event log menu is as shown below:
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Metrodata WCM3100 "WCM Node A" Alarms: Major
EVENT LOGS
System event log <display>
Alarm event log <display>
Config. event log <display>
Full event log <display>
First CAPITAL - select item
<escape> - exit menu
The event log is split into 3 separate sections grouped by event type, or alternatively the
complete event log may be displayed to give full time relationship between events.
5.1.11.1 System Event Log
The system event log stores events that are related to the operation of the system as
shown below:
Metrodata WCM3100 "WCM Node A" Alarms: Major
--- System Event Log -- 1/1/2000 00:00:00 performance log cleared
1/1/2000 00:00:00 rtc needs to be set
1/1/2000 00:00:00 config restored
1/1/2000 00:00:00 event logs cleared
press any key to continue
5.1.11.2 Alarm Event Log
The alarm event log stores the set and clear times for all alarm conditions as shown below:
Metrodata WCM3100 "WCM Node A" Alarms: Major
--- Alarm Event Log -- 1/1/2000 00:00:02 Major ON VCG
1/1/2000 00:00:01 Major ON WAN
1/1/2000 00:00:01 Major ON SFP
1/1/2000 00:00:01 Major ON LAN2
1/1/2000 00:00:01 Major ON LAN1
press any key to continue
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5.1.11.3 Config Event Log
The config event log stores all changes that are made to the unit configuration as shown
below:
Metrodata WCM3100 "WCM Node A" Alarms: Major
--- Config. Event Log -- 5/1/2000 17:59:07 Config. updated
1/1/2000 23:00:21 Default config. set
1/1/2000 22:58:28 Default config. set
1/1/2000 22:37:12 Config. updated
1/1/2000 21:58:00 Config. updated
1/1/2000 00:00:00 Default config. set
press any key to continue
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5.2 Operational Modes
The operational mode menu defines the operating mode for the unit. The menu is shown
below:
Metrodata WCM1100 "" Alarms: Major
OPERATIONAL MODES
VLAN Mode C-VLAN
bAckplane Summary <display>
Flow control Disabled
maX frame size 2048
rate-Limiting Mode Utilisation
Priority Management <menu>
RSTP <menu>
First CAPITAL - select item
<escape> - exit menu
5.2.1 VLAN Mode
The WCM units support two modes of operation, C-VLAN and QinQ/S-VLAN. The modes
are explained below:
In C-VLAN mode, frames may be untagged, or tagged with an IEEE 802.1q VLAN tag with
Ethertype 8100. Since this is standard VLAN operation they are defined as Customer or
C-VLANs within the WCM range.
In QinQ/S-VLAN mode, frames may ingress an access port either untagged, or already
tagged with a C-VLAN tag and an S-Tag will be pushed onto the frame when it egresses
from a trunk port. An S-Tag uses a user definable EtherType with default value 9100.
5.2.2 Backplane Summary
The backplane summary screen gives a summary of the allocation of VLAN’s for all the
ports on the unit.
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5.2.3 Flow Control
The WCM supports IEEE 802.3x pause frame based flow control on all auto negotiating
ports. Flow control may be globally enabled or disabled for the device.
If flow control is enabled, then any port will advertise flow control during auto negotiation
and if required generate pause frames to throttle a port to prevent packet loss.
In practice, flow control will normally be disabled as it interferes with priority based
queueing as it acts per port and shuts it down for all traffic meaning high priority is blocked
as well. With priority queueing enabled, when congestion is encountered the higher
priority traffic will keep passing, whilst the lower priority traffic will be buffered and
eventually discarded.
5.2.4 Max Frame Size
The Max Frame size setting globally defines the MTU for the WCM unit. The options are
as below
2048 Frames upto 2048 bytes will be accepted, this will allow for multiple layers
of MPLS or QinQ tagging
1522 This is the standard MAC MTU size as defined by IEEE 802.3 and
supports 1518 bytes untagged, or 1522 bytes with a single VLAN Tag
applied.
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5.2.5 Rate Limiting Mode
Each port supports rate limiting to police the input traffic stream. This configuration items
determines the method of calculating the traffic stream bandwidth. The options are as
follows:
Utilisation User frame, (DA to FCS) + Preamble + IPG
Information Rate User frame, (DA to FCS)
L3 Rate User frame, (DA to FCS) – 18 ( - 4 if tagged )
For Ethernet to operate correctly, each frame is transmitted with an 8 byte preamble to
allow for clock synchronisation, and a minimum interpacket gap (IPG) of 12 bytes.
Thus, for a wirespeed packet stream of 1488095, 64 byte packets per second, the three
different bandwidths calculate as follow:
Utilisation ( 64 + 8 + 12 ) * 8 * 1488095 = 999,999,840bps
Information Rate 64 * 8 * 1488095 = 761,904,640bps
L3 Rate ( 64 – 18 ) * 8 * 1488095 = 547,618,960bps
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5.2.6 Priority Management
This configuration menu provides the configuration for the WCM QOS support. The
priority management menu is as below:
Metrodata WCM1100 "" Alarms: Major
PRIORITY MANAGEMENT
DSCP->C-Tag Mapping <menu>
Queue Priorities <menu>
VLAN Override <menu>
First CAPITAL - select item
<escape> - exit menu
5.2.6.1 DSCP->C-Tag Mapping
The WCM allows priority to sourced from the IP DSCP marker. DSCP is a 6 bit control,
and as such has a range of 0 to 63. When DSCP is used to source a tag priority there are
only 3 bits used thus a translation is required.
As there are only four levels of queue supported in the WCM, the DSCP to PCP mapping
only actually sets the top 2 bits of the PCB, with the third (LSB) coming from the port
default setting. This means that the DSCP values may be allocated to four priority levels
The menu is shown below:
Metrodata WCM1100 "" Alarms: Major
PRIORITY TRANS
pcp 6/7 DSCP 48-63
pcp 4/5 DSCP 32-47
pcp 2/3 DSCP 16-31
pcp 0/1 DSCP 0-15
Restore Defaults
First CAPITAL - select item
<escape> - exit menu
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The translation allows for the definition of 4 levels of priority as shown. The DSCP
priorities are translated to PCP values. Whether the pcp used is odd or even is dependant
upon the port default priority, as shown
5.2.6.2 Queue Priorities
The WCM has four levels of priority queue, and these queues operate in a strict priority
manner. The queue priorities menu is shown below:
Metrodata WCM1100 "" Alarms: Major
C-TAG->QUEUE PRIORITY MAPPING
Queue Priority: C-Tag Priority:
High 6,7
Medium 4,5
Low 2,3
Best-Effort 0,1
Restore Defaults
First CAPITAL - select item
<escape> - exit menu
The eight levels of PCP may be allocated to the four levels of queue, by default an even
split is used, however any allocation may be used.
The only restriction to the allocation is when DSCP remapping is being used, as this will
enforce the PCP queue mapping to give four priority levels.
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5.2.6.3 VLAN Override
The VLAN override menu allows the user to overwrite the PCP tag of incoming user
frames to force the PCP to a defined level. The menu is as shown below:
Metrodata WCM1100 "" Alarms: Major
VLAN-BASED PRIORITY OVERRIDE
C-Tag Priority: VLAN(s):
7 1001
6 5 101-110
4 3 2 1 0 1-100
Clear All
First CAPITAL - select item
<escape> - exit menu
In the above example, any user frame ingressing a port with VID 1001 will have the PCP
overwritten with 7, thus promoting this VID to the high priority queue. Also, any frames
with VID 1 to 100 will be forced to PCP level 0.
Where priority override occurs, if a frame egresses with a tag, it will contain the overridden
PCP value.
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5.2.7 RSTP
The WCM supports RSTP for loop prevention when resilient network topology is used.
This menus defines the global RSTP configuration for the switch, port specific parameters,
including PortFast are configured under the port menus.
The RSTP configuration menu, once enabled, is as below:
Metrodata WCM1100 "WCM1100" Alarms: Major
RSTP
Mode Enabled
Priority 8
maxAge 20
Hello time 2
Forward delay 15
Tx Hold 1
Version rstp
Status <display>
First CAPITAL - select item
<escape> - exit menu
5.2.7.1 Mode
RSTP may be enabled, all ports not configured as PortFast, will transmit and receive
BPDU’s according to the RSTP IEEE802.1D standard to prevent loop conditions occurring.
5.2.7.2 Priority
The RSTP protocol defines a ROOT switch as the core of the network. The protocol
automatically determines the ROOT switch as the device which has the lowest Bridge
Identifier. The Bridge identifier is composed of the bridge MAC address combined with the
Priority.
The priority system uses the lowest number 0, as highest priority and 15 as lowest priority.
If it is desirable to define the ROOT switch then setting the priority to 0, will in most cases
force this unit to become the root.
5.2.7.3 Max Age
This defines the maximum age of information transmitted by the Root Bridge. The allowed
range for this parameter is in the range 6 to 40 seconds.
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5.2.7.4 Hello Time
The Hello Time parameter defines the period between configuration BPDU transmissions
on designated ports.
5.2.7.5 Forward Delay
The Forward Delay is the timeout used by a port which is not receiving BPDU’s before a
port will transition from DISCARDING to FORWARDING.
The allowed range is 4 to 30 seconds.
When RSTP is enabled, and a port is connected to a non RSTP port, such as a PC it will
not receive BPDU’s. It will then wait for 15 seconds before transitioning to the Forwarding
state and passing traffic.
PortFast may be used on ports not connected to RSTP enabled devices to bypass the
Forward Delay time on startup.
5.2.7.6 Tx Hold
The transmit Hold count is used to limit the transmission rate.
5.2.7.7 Version
The version selects the protocol that is running, currently this may be RSTP or the older,
and less efficient STP.
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5.2.7.8 Status
The status screen enables the user to determine the RSTP state of the device and its
position within the network topology.
Metrodata WCM1100 "WCM1100" Alarms: Major
RSTP STATUS
-----------
| Root | Time Since | Topology
BPE Id | Bridge Id | Topology Change | Change Count
------------+-----------------+-----------------+-------------- 0001 800000c081001366 0:00:29 2
| | | | Forwarding | Rx | Tx |
| Role | State | BPE Id | Transition | BPDU | BPDU |
| | | | Count | | |
-------+-----------+-----------+--------+------------+--------+-------+
LAN Disabled Disabled 0001 00000000 00000000 00000000
SFP1 Designated Forwarding 0001 00000001 00000000 00000035
SFP2 Disabled Disabled 0001 00000000 00000000 00000000
<Esc> - exit, <Enter> - refresh
5.2.7.8.1 Port Role
The port role indicates the value of the port in the network:
Root Primary Connection to the Root Bridge
Alternate Alternate Connection back to Root Bridge
Designated Connection to other bridges
5.2.7.8.2 Port State
A port may be in one of four states
Disabled Port administratively down, or physically Link Down
Discarding Port is blocking all traffic
Learning Port is learning, but not passing data
Forwarding Port is passing data.
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5.3 Port Set Up Menu
This section deals with the configuration of each of the user data port types including
WAN, and LAN ports. A simple configuration will be shown for each type of port.
The port configuration is accessed from the main setup menu by selecting the data port
menu. The data port menu gives the following options
Metrodata WCM3100 "WCM Node A" Alarms: Major
PORT SET-UP
lan1 <menu>
lan2 <menu>
SFP <menu>
VCG <menu>
WAN <menu>
First CAPITAL - select item
<escape> - exit menu
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5.3.1 LAN Port
The WCM has two external copper LAN ports which by default operate in
10/100/1000BaseT auto negotiating, auto crossover mode. The LAN ports are presented
on RJ45 connectors and support access to the other external local LAN ports, the
management processor or the WAN forwarding port.
The LAN port menu allows for configuration of the LAN port parameters and VLAN settings
Metrodata WCM3100 "WCM Node A" Alarms: Major
LAN1
State Up
link status Down
cable Tester <display>
max spEed 1000M
max Duplex Full
Auto-negotiation Enabled
negotiated -- MDI/MDIX Auto
L2 Management <menu>
linK Loss Fwding Disabled
Rate Limiting <menu>
Counters <display>
First CAPITAL - select item
<escape> - exit menu
5.3.1.1 State
The port state is the administrative state of this port. The state may be up or down. When
‘UP’, the port is enabled and will generate a Major Alarm if the link is physically down.
When in the ‘DOWN’ state, the port is disabled.
5.3.1.2 Link Status
The Link Status is a display of the current link status. If the link is up, the link status will
show UP and vice versa. Only when the link status is UP are the operating parameters
valid when in auto negotiating mode.
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5.3.1.3 Cable Tester
The cable tester allows a simple TDR test to be performed to test the electrical
connectivity of the cable. Where unreliable operation is detected on a port, running a
cable test will verify that the cable is correctly connected, and terminated.
The display for a good, 1000M connection is as below:
Metrodata WCM1100 "" Alarms: Major
Cable Tester LAN1
------------
Pair Result Distance (m)
---------------------------------- 0 ok
1 ok
2 ok
3 ok
<Esc> - exit, T – Test
5.3.1.4 Auto Negotiation
The port may be configured to automatically determine the optimal operating parameters
for link speed and duplex. Alternatively, it may be disabled to enable configuration of fixed
operating parameters.
Note, the Auto Negotiating algorithm works optimally with a link partner that also supports
auto negotiation. For operation where one end of a link uses fixed configuration and does
not negotiate, it must be noted that only Speed, 10 or 100M, can be determined, the auto
negotiating node will fall back to use half duplex. 1000M operation requires auto
negotiation to be used.
5.3.1.5 (Max) Speed
When in auto negotiating mode, the max speed displayed is the highest that will be
advertised to the link partner. In non auto negotiating mode, the speed is manually set by
the user.
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5.3.1.6 (Max) Duplex
When in auto negotiating mode, the max duplex displayed is the highest that will be
advertised to the link partner. In non auto negotiating mode, the duplex is manually set by
the user.
5.3.1.7 Negotiated
This item displays the actual operating parameters of the link following auto negotiation
and may take the values:
1000/FD 1000Mbps, Full Duplex
100/FD 100Mbps, Full Duplex
100/HD 100Mbps, Half Duplex
10/FD 10Mbps, Full Duplex
10/HD 10Mbps, Half Duplex
5.3.1.8 MDI/MDIX
By default, the ports support automatic crossover configuration when required. The port
may be configured as follows:
AUTO Auto Sense and configure
MDI Present MDI interface, direct connection to switch
MDIX Present MDIX Interface, direct connection to PC
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5.3.1.9 L2 Management
The L2 management menu configures the layer 2 frame processing and control protocol
support. The L2 management menu is as shown below:
Metrodata WCM1100 "" Alarms: Major
L2 MANAGEMENT, LAN1
Tagging & Priority <menu>
OAM <menu>
RSTP <menu>
First CAPITAL - select item
<escape> - exit menu
5.3.1.9.1 Tagging and Priority
The tagging and priority menu defines the action to be taken for untagged or tagged
frames on ingress to the port. A port has two modes of operation, either C-VLAN mode
where a tag may be pushed onto untagged frames, or the tags of received frames may be
checked against the port VLAN membership allocation. When the WCM is operated in
QinQ/S-Tag mode, ports defined as access will have tags pushed, whilst ports defined as
trunk will egress with tags applied.
5.3.1.9.1.1 C-VLAN Mode
The Tagging and Priority menu when in C-VLAN mode is shown below:
Metrodata WCM3100 "WCM Node A" Alarms: Major
TAGGING & PRIORITY, LAN1
vlan Alloc 1-255
Untagged Add Default Tag
default VLAN 1
Priority Source Default
Default Priority 0
Control C-VLAN 1
First CAPITAL - select item
<escape> - exit menu
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5.3.1.9.1.1.1 VLAN Allocation
The VLAN Allocation defines which VLAN’s this port has membership of, Ingress frames
with VLAN ID’s included in the allocation will be accepted, ID’s outside this range will be
discarded.
The valid range is 1 to 4095
Note, when the port is set to push tags onto untagged frames, the VLAN allocation should
be set to that VLAN ID only.
5.3.1.9.1.1.2 Untagged
The Untagged action option defines the action taken when an untagged frame ingresses
the port.
The valid options are:
Discard Untagged frames will be discarded by this port
Leave Untagged Untagged frames will be accepted at this port.
Add default Tag Untagged frames will have the port default tag pushed using the
default ID, and the configured priority source.
5.3.1.9.1.1.3 Default VLAN
When the untagged action is set to Add Default Tag, the Default VLAN defines the ID for
the tag to be pushed onto the frame.
The valid range is 1 to 4095.
5.3.1.9.1.1.4 Priority Source
The priority source is used to determine the source of the priority value in the frames
egress tag. The options are as below:
Default Use the default port priority for all frames ingressing this
port. This will overwrite any incoming tag PCP bits with
the default value.
C-Tag, Default For incoming tagged frames, use the priority PCP bits
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default priority.
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DSCP, Default For incoming IP frames use the DSCP priority, with the
translation to determine the PCP value. For non IP use
the default value.
C-Tag, DSCP, Default For incoming tagged frames, the priority will be taken from
the tag PCP priority. For untagged frames, the DSCP
value will be used, according to the priority translation
setting where available, otherwise the port default priority
setting will be used.
5.3.1.9.1.1.5 Default Priority
The default priority is the priority value to be used for frames ingressing this port, unless
any other source has been specified.
The valid range is 0 (low) to 7 (high)
5.3.1.9.1.1.6 Control C-VLAN
The control C-VLAN is used for CFM OAM traffic where that option is available. It is not
supported in the WCM so this setting may be left in the default setting.
5.3.1.9.1.2 QinQ/S-VLAN Mode
When the operational mode of the WCM is set to QinQ/S-VLAN mode the tagging and
priority menu is as below, for access or trunk ports
Metrodata WCM3100 "" Alarms: Major
TAGGING & PRIORITY, LAN1
port Mode Access
s-VLAN 1
Priority Source Default
Default Priority 0
Control S-VLAN 1
First CAPITAL - select item
<escape> - exit menu
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Metrodata WCM3100 "" Alarms: Major
TAGGING & PRIORITY, LAN1
port Mode Trunk
s-vlan Alloc 1-5
EtherType 9100
Control S-VLAN 1
First CAPITAL - select item
<escape> - exit menu
5.3.1.9.1.2.1 Port Mode
The port determines whether the port will act as an access or a trunk port.
Access Frames ingressing an access port will have an S-Tag pushed which will
use the defined ID and priority as determined by the priority source setting.
Frames may be tagged or untagged.
Trunk All frames traversing a trunk port must be tagged with an S-Tag with an
Ethertype matching the defined value.
5.3.1.9.1.2.2 S-VLAN (Access Port)
The S-VLAN definition defines the ID to be used for tags pushed onto frames ingressing
an access port. This value also defines that frames ingressing a trunk port with this ID will
egress with the S-Tag popped from this port.
5.3.1.9.1.2.3 Priority Source (Access Port)
The priority source is used to determine the source of the priority value in the frames
egress tag. The options are as below:
Default Use the default port priority for all frames ingressing this
port. This will overwrite any incoming tag PCP bits with
the default value.
C-Tag, Default For incoming tagged frames, use the priority PCP bits
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default priority.
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DSCP, Default For incoming IP frames use the DSCP priority, with the
translation to determine the PCP value. For non IP use
the default value.
C-Tag, DSCP, Default For incoming tagged frames, the priority will be taken from
the tag PCP priority. For untagged frames, the DSCP
value will be used, according to the priority translation
setting where available, otherwise the port default priority
setting will be used.
5.3.1.9.1.2.4 Default Priority (Access Port)
The default priority is the priority value to be used for frames ingressing this port, unless
any other source has been specified.
The valid range is 0 (low) to 7 (high)
5.3.1.9.1.2.5 S-VLAN Allocation (Trunk Port )
A trunk port will only accept frames which are tagged with an S-Tag having a valid
Ethertype and also an ID that is within the allocated range. Untagged, or ID’s outside the
allocation will be discarded.
5.3.1.9.1.2.6 EtherType (Trunk Port)
The Ethertype for an S-VLAN tag is configurable to ensure interoperability and maximum
flexibility of application. The EtherType may take the following values:
9100 Default, S-Tag Ethertype
8100 Standard VLAN QinQ operation
88A8 Provider Bridge, ( IEEE 802.1ad )
5.3.1.9.1.2.7 Control S-VLAN
The control S-VLAN is used for the transport of CFM OAM frames, however this function is
not supported on the WCM range so this value may be left as default.
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5.3.1.9.2 OAM
The WCM supports IEEE 802.3ah Link OAM which may be configured on a per port basis:
Metrodata WCM3100 "" Alarms: Major
OAM, LAN1
Mode Active
Status <display>
counTers <display>
Events <display>
First CAPITAL - select item
<escape> - exit menu
5.3.1.9.2.1 OAM Mode
The port may be configured to be:
Disabled OAM packets not generated, and discarded
Active OAM status requests generated once per second
Passive OAM Status Updates will be generated in response to Status
Requests.
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5.3.1.9.2.2 OAM Status
When two ports are running OAM, the status screen enables the user to determine the
status of the remote device.
Metrodata WCM3100 "" Alarms: Major
OAM STATUS
----------
| Local | Local | Peer | Peer | Peer | Peer
| Status | Support | Mode | MAC address | VendorInfo | Support
----------+----------+---------+------+-------------+------------+------- LAN1 SendAny L active 00c081001375 00000037 L
Remote Status
------------Unit: WCM3100
Node name: "Test Unit"
Interface: LAN1
Interface AdSt OpSt
LAN2 Up Down
SFP Up Down
VCG Up Up
<Esc> - exit, <Enter> - refresh
Where the peer device is another Metrodata device, proprietary extensions to OAM are
used to report further remote peer status information.
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5.3.1.9.2.3 OAM Counters
The counters provide an indication of the OAM interactions taking place. In normal
operation, the information frames should be incrementing at a rate of 1 per second.
Metrodata WCM3100 "" Alarms: Major
OAM Statistics
--------------
Rx Tx
Unsupported Codes 0 0
Information 372 373
Unique Event 0 0
Duplicate Event 0 0
Variable Request 0 0
Variable Response 0 0
Loopback Control 0 0
Organisation Specific 4 4
<Esc> - exit, C - clear, <Enter> - refresh
5.3.1.9.2.4 OAM Events
The OAM event log maintains a list of events that occur within the OAM module for the
selected port.
Metrodata WCM3100 "" Alarms: Major
OAM Events
----------
(no events)
<Esc> - exit, C - clear, <Enter> - refresh
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5.3.1.9.3 RSTP
When RSTP is enabled on the WCM unit, there are several parameters which need to be
defined on a per port basis. The port rstp menu is shown below:
Metrodata WCM3100 "" Alarms: Major
RSTP, LAN1
Priority 128
Cost 0
portFast Disabled
First CAPITAL - select item
<escape> - exit menu
5.3.1.9.3.1 RSTP Port Priority
The port priority is used by the RSTP algorithm to determine which connections should be
used.
5.3.1.9.3.2 RSTP Port Cost
The port cost is used by the RSTP algorithm to determine which connections should be
used.
5.3.1.9.3.3 RSTP Port Fast
When RSTP is enabled, a port will power up in the blocked state and listen for BPDU’s in
order to determine the network topology, and whether it should transition to the forwarding
state. In the event that a port running RSTP is connected to a port which is not, then
eventually after a timeout when no BPDU’s are received the port will decide that it may
transition to the forwarding state.
By enabling Port Fast on a port, the user is declaring that it is not possible for the this port
to form a loop, and it should therefore transition to forwarding immediately.
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5.3.1.10 Link Loss Forwarding
When equipment is connected together over a network with intermediate nodes, and fault
in the network may well not actually be seen by the end stations. Link loss forwarding is a
mechanism for propagating link faults towards an end station.
When link loss forwarding is enabled, if the selected port encounters a problem, eg Link
Down, then the port with LLF enabled will also enter the link down state.
5.3.1.11 Rate Limiting
Rate limiting allows the individual priority levels to be rate limited on ingress. The rate
limiting is applied using the mode selected in the operating mode menu (
utilization/information/L3 ). Frames priority is determined using the ingress, or overridden
PCP value which may also be based on the DSCP value as determined in the operating
mode menu.
The rate limiting menu is as shown:
Metrodata WCM1100 "" Alarms: Major
RATE LIMITING, LAN1
bRoadcast <menu>
High <menu>
Medium <menu>
Low <menu>
Best-Effort <menu>
First CAPITAL - select item
<escape> - exit menu
The individidual rate limits are applied by selecting the queue type and then entering the
required rate limits as shown:
Metrodata WCM1100 "" Alarms: Major
RATE LIMITING, LAN1, HIGH
Limiting Enabled
CIR 15M
cBS 20k
First CAPITAL - select item
<escape> - exit menu
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5.3.1.11.1 Limiting
At each priority level, the rate limit policing may be enabled or disabled. When disabled,
ingress frames at this priority are not limited.
When rate limiting is enabled, ingress frames of this priority are limited according to the
CIR/CBS parameters.
5.3.1.11.2 CIR
The CIR ( Committed Information Rate ) defines the bandwidth limit to be applied. The
CIR bandwidth defines a bit rate in bits per second according to the mode configured in
the operating mode menu.
The CIR value 50000000 may be entered in several ways as shown
50000000
50M
50000k
5.3.1.11.3 CBS
The CBS ( Committed Burst Size ) defines the maximum burst size for frames ingressing
at a rate in excess of the CIR. The CBS is defined in bytes.
The value 10000 may be entered as
10000
10k
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5.3.1.12 Counters
Each LAN port provides a set of counters supporting the basic MIB-2 SNMP parameters
as below:
Interface Statistics
------------------------ ifInOctets 808916
ifInUcastPkts 2012
ifInNUcastPkts 5600
ifInDiscards 0
ifInErrors 0
ifInUnknownProtos 0
ifOutOctets 186612
ifOutUcastPkts 2562
ifOutNUcastPkts 1
ifOutDiscards 0
ifOutErrors 0
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5.3.2 SFP Port
The SFP port configuration menu is accessed via the data port set up menu and is as
shown below:
Metrodata WCM3100 "" Alarms: Major
SFP
sfp type 1000BASE-LX
State Up
link status Up
spEed 1000M
sFP Management <menu>
L2 Management <menu>
linK Loss Fwding Disabled
Rate Limiting <menu>
Counters <display>
First CAPITAL - select item
<escape> - exit menu
5.3.2.1 SFP Type
This display item indicates the type of SFP fitted. This value is read from the SFP device
itself and is a decode of the interface type bytes according to the SFP MSA definition.
Metrodata supplied SFP devices will indicate the SFP type, however some lower cost,
lower quality SFP devices may not be correctly programmed and will indicate
“UNKNOWN” as the device type cannot be determined.
If no SFP is fitted, this will show “NOT FITTED”
5.3.2.2 State
This setting defines the administrative state of the port and may be UP or DOWN. When
the state is DOWN, no alarm processing is performed. If an SFP is not fitted, it is
important to change this state to DOWN to prevent the SFP MAJOR alarm being
generated.
5.3.2.3 Link Status
When the SFP is fitted, this displays the operational state of the link and also may be UP
or DOWN.
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5.3.2.4 Speed
When a unit cold starts, the default speed is set according to the setting of bit switch 7 on
the underside of the unit.
The options are:
1000 1000 Base X Mode
100 100 Base FX Mode
This setting should be set to match the SFP device inserted.
Note, when 1000 is selected, auto negotiation is enabled however bypass is enabled so it
will correctly operate with a non negotiating link partner.
When 100 is selected, auto negotiation is disabled.
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5.3.2.5 SFP Management
The SFP management menu gives the user the option of displaying the SFP information
inclulding module details and when available the diagnostics information. The menu also
allows the notifications to be defined to allow for traps and alarms to be generated based
on the SFP diagnostic information.
The SFP management menu is shown below:
Metrodata WCM3100 "WCM3100_Left" Alarms: none
SFP MANAGEMENT
Device Details <display>
Notifications <menu>
First CAPITAL - select item
<escape> - exit menu
5.3.2.5.1 Device Details
This menu displays further information regarding the SFP device:
Metrodata WCM3100 "" Alarms: Major
SFP Info Interface: SFP
------- Transmit
Status Type Vendor Part No. Wavelength
---------------------------------------------------------------------- Good 1000BASE-LX HG GENUINE MXPD-243S-G 1310nm
SFP Diagnostic Info
-------------------
Diagnostic Current Alarm Threshold Warning Threshold
Item Status Value Unit High Low High Low
--------------------------------------------------------------------- Tx Power OK -6 dBm -1 -11 -2 -8
Rx Power OK -5 dBm -3 -19 -5 -17
Bias OK 15.1 mA 60.0 1.0 50.0 1.0
Temp OK 54 C 85 -5 80 0
Supply OK 3.27 V 3.60 3.0 3.50 3.10
<Esc> - exit, <Enter> - refresh
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Where the fitted SFP supports the extended diagnostic interface, the extra information is
displayed.
5.3.2.5.2 Notifications
The Notifications menu allows traps and alarms to be generated based on alarms or
warnings raised by the SFP diagnostic information.
The menu is shown below, with a common set up with traps/alarms enabled for the high
termperature and low receive power.
Metrodata WCM3100 "WCM3100_Left" Alarms: none
NOTIFICATIONS
1 - Temp High Alarm & Warning
2 - Temp Low None
3 - Supply High None
4 - Supply Low None
5 - Bias High None
6 - Bias Low None
7 - Tx Power High None
8 - Tx Power Low None
9 - Rx Power High None
A - Rx Power Low Alarm & Warning
B - SFP Removed None
C - OTDR Fault None
First CAPITAL - select item
<escape> - exit menu
The options for each notification is as follows:
None Do not generate a trap or alarm for this diagnostic parameter
Alarm Generate an alarm and trap when the Alarm threshold is
exceeded.
Alarm & Warning Generate an alarm and trap when either the Alarm or Warning
threshold has been exceeded.
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5.3.2.6 L2 Management
The L2 management menu is used to configure the L2 frame processing and control
protocol support
Refer to section 5.3.1.9 for a full description
5.3.2.7 Link Loss Forwarding
When equipment is connected together over a network with intermediate nodes, and fault
in the network may well not actually be seen by the end stations. Link loss forwarding is a
mechanism for propagating link faults towards an end station.
When link loss forwarding is enabled, if the selected port encounters a problem, eg Link
Down, then the port with LLF enabled will also enter the link down state.
5.3.2.8 Rate Limiting
This menu configures the priority based rate limiting. Please refer to section 5.3.1.11 for
configuration details.
5.3.2.9 Counters
The SFP provides counters to show the packets that pass over this port as shown below:
Metrodata WCM1100 "" Alarms: Major
Interface Statistics
--------------------
ifInOctets 0
ifInUcastPkts 480
ifInNUcastPkts 0
ifInDiscards 0
ifInErrors 2
ifInUnknownProtos 0
ifOutOctets 0
ifOutUcastPkts 480
ifOutNUcastPkts 0
ifOutDiscards 0
ifOutErrors 0
<Esc> - exit, C - clear, <Enter> - refresh
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5.3.3 WCM1100 WAN Port
The WCM1100 WAN Port menu is as below:
Metrodata WCM1100 "" Alarms: Major
WAN
State Up
Interface E1 Unbal (BNC)
Timing Internal
rx sEnsitivity Short-haul
Framing Framed
crc-4 Enabled
sigNalling Disabled
First CAPITAL - select item
<escape> - exit menu
The available options are as below:
5.3.3.1 State
The state configuration defines the Administrative State of the WAN port. For normal
operation it must be set to UP.
In applications where the WAN link is not used, the state should be set to Down to disable
the alarm processing on the WAN port.
5.3.3.2 Interface
The E1 port physical interface may be selected as below:
Unbalanced (BNC) E1 port operates in 75ohm, unbalanced mode presented
on BNC connectors
Balanced (RJ45) E1 port operates in 120ohm, balanced mode presented on
the RJ45 connector.
Following a cold start, the default setting is determined by the position of bit switch 6.
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1.1.1.1 Timing
The E1 port may be operated in either:
Internal E1 Transmit Timing derived from the internal oscillator
Loop E1 Transmit Timing derived from the E1 Receive Timing. Under loss
of signal conditions, the timing will fall back to the local oscillator.
Following a cold start, the default setting is determined by the position of bit switch 5.
5.3.3.3 RX Sensitivity
The E1 port supports both short and long haul modes of operation. The Rx Sensitivity
mode may be toggled between
Short Haul max cable loss 12 dB
Long Haul max cable loss 43 dB
5.3.3.4 Framing
The WAN port may be configured to operate in the following modes
Unframed Clear channel, 2.048Mbps
Framed G.704 Framed, 1.984Mbps payload
Fractional G.704 Framed, Nx64
Following a cold start, the default setting is determined by the position of bit switch 4.
5.3.3.5 CRC-4
When operating in Framed or Fractional mode CRC-4 multiframe mode may be enabled or
disabled.
5.3.3.6 sigNalling
When operating in framed mode, the signaling option determines whether timeslot 16 is
available for payload. With Signalling Enabled timeslot 16 is not used for payload giving a
link capacity of 1.920MBps rather than 1.984MBps.
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5.3.3.7 Allocation
When Fractional Framing mode is selected, this configuration item allows the required
timeslots to be configured.
Metrodata WCM1100 "" Alarms: Major
WAN
State Up
Interface E1 Unbal (BNC)
Timing Internal
rx sEnsitivity Short-haul
Framing Fractional
crc-4 Enabled
sigNalling Disabled
Allocation 1-3
First CAPITAL - select item
<escape> - exit menu
The timeslot allocation may be contiguous or non contiguous and may be defined as
follows:
1,2,3 Select timeslot 1, 2 and 3
1-3 Select timeslot 1 to 3
1,2,5-7 Select timeslots 1, 2 and 5, 6 and 7.
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5.3.4 WCM3100 WAN Port
The WCM3100 WAN Port menu is as below:
Metrodata WCM3100 "" Alarms: Major
WAN
State Up
Interface E3
Timing Internal
Framing G.832
First CAPITAL - select item
<escape> - exit menu
and when DS-3 is selected
Metrodata WCM3100 "" Alarms: Major
WAN
State Up
Interface DS3
Timing Internal
tx line Build-Out 0-225ft
Framing C-Bit
First CAPITAL - select item
<escape> - exit menu
The available options are as below:
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5.3.4.1 State
The state configuration defines the Administrative State of the WAN port. For normal
operation it must be set to UP.
In applications where the WAN link is not used, the state should be set to Down to disable
the alarm processing on the WAN port.
5.3.4.2 Interface
The WAN port physical interface may be selected as below:
E3 The WAN port operates in E3, G.703 mode at
34.368Mbps. The interface can operate in G.832 Framed
mode or clear channel, unframed mode.
DS-3 The WAN port operates in DS-3, G703 mode at
44.736Mbps. The interface can operate in C-Bit Framed
mode or clear channel, unframed mode.
5.3.4.3 Timing
The WAN port may be operated in either:
Internal Transmit Timing derived from the internal oscillator
Loop Transmit Timing derived from the Receive Timing. Under loss of
signal conditions, the timing will fall back to the local oscillator.
5.3.4.4 TX Line Build Out (DS-3 mode Only)
The DS-3 standard defines the wave shape at the far end of the cable and as such to
prevent overdrive of a short cable run, the transmitter power may be reduced.
The line build out configures the interface to drive cables of differing lengths as below:
0 – 225ft Set for Shorter cable runs
>225ft Set for longer cable runs upto 450ft.
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5.3.4.5 Framing
The WAN port may be configured to operate in the following modes
Unframed Clear channel, E3 or DS-3
Framed G.832 E3 / C-Bit DS-3
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5.3.5 WCM-Serial WAN Port Configuration
The main serial port menu varies depending upon which cable type is fitted. Below are the
options shown for no cable, V.35 and X.21
For no cable fitted:
Metrodata WCM-Serial "" Alarms: Major
WAN
State Up
interface No Cable
mode DCE
sPeed 2048kbps
cTs control On
CD control On
DSR control On
RTS state Off
DTR state Off
First CAPITAL - select item
<escape> - exit menu
With V.35 DCE ( CAB-V35-FC ) fitted:
Metrodata WCM-Serial "" Alarms: Major
WAN
State Up
interface V.35
mode DCE
sPeed 2048kbps
cTs control On
CD control On
DSR control On
RTS state Off
DTR state Off
First CAPITAL - select item
<escape> - exit menu
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With X.21 DTE ( CAB-X21-MT ) fitted
Metrodata WCM-Serial "" Alarms: Major
WAN
State Up
interface X.21
mode DTE
'C' control On
'I' state Off
First CAPITAL - select item
<escape> - exit menu
5.3.5.1 State
The state configuration defines the Administrative State of the WAN Serial port. For
normal operation it must be set to UP.
In applications where the WAN link is not used, the state should be set to Down to disable
the alarm processing on the WAN port.
5.3.5.2 Interface
This display item shows the type of cable that is fitted, and the electrical specification of
the serial interface. The following options are supported:
DTE DCE
V.35 CAB-V35-MT CAB-V35-FC
X.21 CAB-X21-MT CAB-X21-FC
EIA-530 CAB-530-MT
V.36 CAB-V36-MT CAB-V36-FC
No Cable No cable fitted
The serial cables all have identifiers in the HD60 connector to identify them and the multi
serial interface checks the cable type and configures itself accordingly.
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5.3.5.3 Mode
The normal operating mode of the WCM-Serial is in DTE mode where timing is supplied
externally by the external NTU/Modem. For lab testing, a DCE mode is also available.
Options
DTE Selected by attached cable
DCE Selected by attached cable, and generates the link timing.
5.3.5.4 Controls
The serial interface supports several modem control outputs, the controls available
depends upon the interface type.
The option for each control is
ON Always ON, normal operation
OFF Always off
LOOP Looped to incoming control
5.3.5.5 State
These display items show the state of the incoming modem controls.
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5.3.6 VCG
The VCG ( virtual concatenation group ) configuration menu is used to define the
encapsulation method used for frames being transported over the WAN port.
The VCG configuration menu is as below:
Metrodata WCM3100 "" Alarms: Major
VCG
State Up
Encapsulation <menu>
LCAS/VCAT Off
lcas statUs <display>
layer 2 management <menu>
linK Loss Fwding Disabled
Rate Limiting <menu>
Counters <display>
First CAPITAL - select item
<escape> - exit menu
5.3.6.1 State
The VCG state setting controls the administrative state of the VCG. For normal operation
the state should be set to UP.
5.3.6.2 Encapsulation
This menu allows the configuration of the packet encapsulation mode for transporting
packets across the WAN port.
Metrodata WCM3100 "" Alarms: Major
ENCAPSULATION, VCG
Encapsulation HDLC
HDLC FCS 16-bit
strip MAC FCS Yes
paYload scrambler Disabled
First CAPITAL - select item
<escape> - exit menu
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5.3.6.3 Encapsulation
The WCM product range supports bit synchronous HDLC encapsulation for unframed, or
framed interfaces, or alternatively X.86 LAPS or GFP byte synchronous modes for Framed
interfaces.
5.3.6.3.1 HDLC
HDLC mode is the only option supported on the WCM-Serial, and on WCM1100/3100
when unframed interfaces are selected. HDLC uses flags (0x7E) and bit stuffing to
transmit packets over the WAN interface. When operating in HDLC mode, there are
several parameters which can be changed
5.3.6.3.1.1 HDLC FCS
When a packet is encapsulated a frame check sequence is added to the end of the packet
to enable transmission error detection. The options here are
16 bit A 16 bit FCS is calculated and added to the packet
32 bit A 32 bit FCS is calculated and added to the packet
Both ends of the link MUST match otherwise traffic will not flow, For operation with an
unmanaged WC product, 16 bit mode must be used.
5.3.6.3.1.2 Strip MAC FCS
A LAN packet is protected by a 32 bit FCS. Since the encapsulator will add an HDLC FCS
it is possible to save bandwidth by removing the Ethernet FCS and recalculate at the far
end.
Both ends of the link MUST match otherwise traffic will not flow, For operation with an
unmanaged WC product, or previous software version MAC FCS Stripping mode must be
used.
For greatest protection against errors, MAC stripping should be disabled and the frame
FCS sent end to end to protect against any internal errors. This requires extra overhead,
so it is a trade off between error protection and bandwidth.
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5.3.6.3.1.3 Payload Scrambler
For security purposes and to ensure a good ones density an X^43 scrambler may be
applied
Both ends of the link MUST match otherwise traffic will not flow, For operation with an
unmanaged WC product, or previous software version the payload scrambling must be
disabled
5.3.6.3.2 X.86
The WCM offers X.86 LAPS encapsulation when used on a framed, byte synchronous
interface. X.86 uses flags to delimit and pad, and appends a four byte header to the
packet along with a 32 bit FCS. Additional options are:
5.3.6.3.2.1 Strip MAC FCS
A LAN packet is protected by a 32 bit FCS. Since the encapsulator will add an HDLC FCS
it is possible to save bandwidth by removing the Ethernet FCS and recalculate at the far
end.
Both ends of the link MUST match otherwise traffic will not flow.
5.3.6.3.2.2 Payload Scrambler
For security purposes and to ensure a good ones density an X^43 scrambler may be
applied
Both ends of the link MUST match otherwise traffic will not flow.
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5.3.6.3.3 GFP
The WCM1100 offers GFP encapsulation when used on a framed, byte synchronous
interface. GFP uses idle packets to delimit and pad, and appends a four byte header to
the packet along with a 32 bit FCS. Additional options are:
Metrodata WCM1100 "" Alarms: Major
ENCAPSULATION, VCG
Encapsulation GFP
GFP FCS Enabled
strip MAC FCS Yes
paYload scrambler Enabled
First CAPITAL - select item
<escape> - exit menu
5.3.6.3.3.1 GFP FCS
The GFP FCS, frame check sequence, may be added to the frame to provide error
protection. The GFP FCS should always be enabled as this will allow the decapsulator to
detect frame errors.
5.3.6.3.3.2 Strip MAC FCS
A LAN packet is protected by a 32 bit FCS. Since the encapsulator will add an GFP FCS it
is possible to save bandwidth by removing the Ethernet FCS and recalculate at the far
end.
Both ends of the link MUST match otherwise traffic will not flow.
5.3.6.3.3.3 Payload Scrambler
For security purposes and to ensure a good ones density an X^43 scrambler may be
applied
Both ends of the link MUST match otherwise traffic will not flow.
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5.3.6.4 LCAS/VCAT
Even though WCM units are all single WAN port models, they do support LCAS ( Link
Capacity Adjustment Scheme ) however they will only support single link VCAT ( Virtual
Concatenation ) if required.
The options are
OFF Use the entire framed or unframed payload for data
VCAT only In framed modes only, insert a single VCAT Control byte in the first
frame of each multiframe, but mark as fixed.
VCAT+LCAS In framed modes, insert a single VCAT control byte and run the
LCAS protocol over the top.
5.3.6.5 LCAS Status
In the event that LCAS is being used, the LCAS status screen gives useful information
about the status of the link.
Metrodata WCM1100 "" Alarms: Major
LCAS Status
-----------
| outbound (source) | inbound (sink) |
| sending | receiving | receiving | sending |
trib h/w vcg | sq ctrl | mst rsack | sq ctrl gid | mst rsack | lom
------------------------------------------------------------------------- 1 0 1 | 0 eos | okay 1 | 0 eos 1c66| okay 1 | n
<Esc> - exit, <Enter> - refresh
5.3.6.6 Layer 2 management
The layer 2 management menu is used to define the layer 2 tagging actions and to control
the OAM and RSTP control protocols.
Refer to section 5.3.1.9 for a full description.
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5.3.6.7 Link Loss Forwarding
When equipment is connected together over a network with intermediate nodes, and fault
in the network may well not actually be seen by the end stations. Link loss forwarding is a
mechanism for propagating link faults towards an end station.
When link loss forwarding is enabled, if the selected port encounters a problem, eg Link
Down, then the port with LLF enabled will also enter the link down state.
5.3.6.8 Rate Limiting
This menu is used to control the priority based rate limiters. In practice, it is unlikely that
the VCG rate limiters will ever be enabled.
For full configuration details, refer to section 5.3.1.11 of the manual.
5.3.6.9 Counters
The VCG provides counters to show the packets that pass over this port as shown below:
Metrodata WCM1100 "" Alarms: Major
Interface Statistics
--------------------
ifInOctets 0
ifInUcastPkts 480
ifInNUcastPkts 0
ifInDiscards 0
ifInErrors 2
ifInUnknownProtos 0
ifOutOctets 0
ifOutUcastPkts 480
ifOutNUcastPkts 0
ifOutDiscards 0
ifOutErrors 0
<Esc> - exit, C - clear, <Enter> - refresh
The interface statistics are mapped onto the MIB-2 IF statistics and have the following
significance
ifInUcastPkts This is a count of all packets received on the VCG
ifInErrors This is a count of packets received with a checksum error
ifOutUcastPkts This is a count of all packets transmitted on the VCG
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5.4 V.24 Setup
The V.24 setup menu configures the local terminal interface for the WCM device. The
menu is shown below:
Metrodata WCM3100 "" Alarms: Major
V.24 SET-UP
Usage Console
Console set-up <menu>
First CAPITAL - select item
<escape> - exit menu
5.4.1 Usage
When a service provider installs a unit on a customer site, it may be desirable to prevent
local management access to the device. The WCM offers the option of disabling the
terminal interface preventing access.
Options:
Console Normal terminal interface available
Disabled Terminal port disabled.
When the console is disabled, any attempt to access the WCM unit via the terminal port
will receive the following prompt:
Console is disabled.
A disabled console may be restored by either cold starting the unit, or from a telnet/ssh
management session.
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5.4.2 Console Set Up
This menu defines the operating parameters of the terminal interface as shown:
Metrodata WCM3100 "" Alarms: Major
CONSOLE SET-UP
Terminal type TTY
via Modem No
Baud rate 19200 bps
Parity None
Data bits 8
Stop bits 2
Load new config.
First CAPITAL - select item
<escape> - exit menu
5.4.2.1 Terminal Type
The terminal type setting defines the output type of the user interface. There are 3
settings:
TTY A simple terminal interface sent line by line with scrolling screens and no
cursor control, or graphics
VT100 Enhanced display for VT100 emulation with highlighted characters, cursor
control and graphic borders
ANSI Enhanced Vt100 mode
5.4.2.2 via Modem
The WCM supports management access via a dial up modem. When a call is connected
the terminal activates when DTR is raised by the modem, and will automatically disconnect
when DTR is negated.
Options
No Normal Terminal operation, 3 wire connection may be used
Yes Hardware Control based interface, full RS-232 interface needed including
DTR control signal
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5.4.2.3 Baud Rate
This sets the baud rate for the terminal interface. The default setting is 19200baud.
The options are:
2400
4800
9600
19200
5.4.2.4 Parity
This sets the parity for the terminal interface. The default setting is None
The options are:
None
Odd
Even
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5.4.2.5 Data Bits
This sets the number of data bits per character for the terminal interface. The default
setting is 8.
The options are
8
7
5.4.2.6 Stop Bits
This sets the number of stop bits per character for the terminal interace. The default
setting is 2.
The options are
2
1
5.4.2.7 Load New Config
Once the parameters for the terminal interface have all been configured, they must be
loaded using the Load New Config command.
Once loaded, the new parameters will be in use, and the terminal emulator will also need
to be changed to match the required settings.
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5.5 Management Entity
The management entity menu defines the IP functionality of the WCM unit to enable
remote management access via the LAN, SFP or WAN ports.
Metrodata WCM3100 "" Alarms: Major
MANAGEMENT ENTITY
proXying <menu>
intErface <menu>
IP <menu>
UDP <menu>
tCp <menu>
sNmp <menu>
Telnet/SSH <menu>
tFtp <menu>
Ping <display>
First CAPITAL - select item
<escape> - exit menu
5.5.1 Proxying
The WCM product range supports proxy mode management where a local unit acts as a
proxy server and is configured with the IP address of the remote unit. The remote unit
may be simply installed in proxy client mode and it will assume all IP configuration from the
proxy server unit.
Proxying uses a proprietary extension to IEEE 802.3ah OAM and as such will only be
available for direct connections between units.
Metrodata WCM3100 "" Alarms: Major
PROXYING
Mode Disabled
First CAPITAL - select item
<escape> - exit menu
The default mode is determined by the bit switches on the underside of the unit with the
supported options being Disabled, Client, Server as below
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5.5.1.1 Server Mode Proxy
Setting the mode to Server enables the WCM unit to act as a proxy server to a group of
proxy clients attached to each of the ports. As a proxy server, the WCM unit will respond
to ARP for remote proxy IP addresses and communicate using an in band management
protocol with the client.
A client can be supported at the far end of each port of the unit, though in general, only
remote units connected via the VCG will be managed as proxy clients. The proxy client
set up menu is shown below:
Metrodata WCM3100 "" Alarms: Major
VCG
Proxying Enabled
Host interface Mgmt
DHCP Off
IP address 169.254.42.50
Net mask 255.255.0.0
First CAPITAL - select item
<escape> - exit menu
5.5.1.1.1 Proxying
For each client, proxying may be either Enabled or disabled.
Enabled Proxy mode active on this link,
Disabled Proxy mode disabled on this link
5.5.1.1.2 Host Interface
This is a display item only and cannot be changed. It indicates that the proxy client will
use the remote management interface.
5.5.1.1.3 DHCP
For each proxy client, DHCP may be enabled such that the IP address will be
administered automatically, otherwise it may be disabled, for manual IP address setting.
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5.5.1.1.4 IP Address
If DHCP is enabled, this will display the IP address served by the DHCP server, or if no
server is available it will have the initial default IP address of 169.254.42.xx where xx is
dependant upon which port the client is defined.
If DHCP is not enabled, enter the IP address for the remote device.
5.5.1.1.5 Network Mask
If DHCP is enabled, this will display the net mask served by the DHCP server, or if no
server is available it will have the default net mask of 255.255.0.0.
If DHCP is not enabled, enter the required net mask for the remote device.
5.5.1.2 Client Mode Proxy
When a device is set to be a Proxy client, it simply needs to be configured for which port
will be used for the proxy management. The client menu is as below:
Metrodata WCM3100 "" Alarms: Major
PROXYING
Mode Client
Interface VCG
First CAPITAL - select item
<escape> - exit menu
5.5.1.2.1 Interface
This toggle menu item selects which interface the proxy mode management will use.
Normally this will be the VCG, as this is the connection to the remote device.
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5.5.2 Interface
The interface menu is used to define the IP parameters for the unit management entity as
shown in the menu screen below:
Metrodata WCM3100 "" Alarms: Major
INTERFACE
State Up
Phys. address 0:c0:81:0:14:55
DHCP Off
IP addr 192.168.0.1
Net mask 255.255.255.0
AT table <display>
sTats. <display>
c-VLAN None
QinQ/S-VLAN 0
taG priority 0
First CAPITAL - select item
<escape> - exit menu
5.5.2.1 State
This defines the administrative stat for the management entity. For management access
this must be set to up.
5.5.2.2 Physical Address
The physical address is the unique MAC address assigned to this unit. This address will
be of the form:
00:C0:81:xx:yy:zz where 00:C0:81 is the Metrodata OUI, and xx.yy.zz is the unit
identifier
5.5.2.3 DHCP
The management entity can use DHCP for automatic IP address allocation, or it may be
disabled for manual administration.
Options
ON DHCP active, will try to get an IP address from a DHCP server, otherwise
will use the default IP address 169.254.42.42
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