All rights reserved. March 2001.
The information in this document is subject to c hange without notice. The statements, co nfiguration s, technical data , and
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209564-A
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3
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Cet appareil numérique Passport respecte les limite s de bruit s radioélectriques visant les appareils numériques de classe
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Using the P assport 8683POS Module
4
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209564-A
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The Passport® 8683POS Module is part of the Nortel Networks Passport® 8600
Series line of communications products. This module is the Passport Packet over
SONET (POS) module for the Passport 8600 chassis. This guide describes the
features and operations of the Passport 8683POS Module and provides
instructions for installing and managing the module.
Before you begin
This guide is intended fo r network installers and system administrators who are
responsible for installing, configuring, or maintaining networks. This guide
assumes that you have the following background:
•Understanding of the transmission and management protocols used on your
network
•Experience with windowing systems or graphical user interfaces (GUIs)
17
Using the P assport 8683POS Module
18Preface
Text conventions
This guide uses the following text conventions:
angle brackets (< >)Indicate that you choose the text to enter based on the
description inside the brackets. Do not type the
brackets when entering the command.
Example: If the command syntax is
ping <ip_address>, you enter
ping 192.32.10.12
bold Courier text
Indicates command names and options and text that
you need to enter.
Example: Use the
Example: Enter
dinfo command.
show ip {alerts|routes}.
braces ({})Indicate required e lements in synta x descriptions where
there is more than one option. You must choose only
one of the options. Do not type the braces when
entering the command.
Example: If the command syntax is
show ip {alerts|routes}, you must enter either
show ip alerts or show ip routes, but not both.
brackets ([ ])Indicate optional elements in syntax descriptions. Do
not type the brackets when entering the command.
Example: If the command syntax is
show ip interfaces [-alerts], you can enter
either
show ip interfaces or
show ip interfaces -alerts.
ellipsis points (. . . )Indicate that you repeat the last element of the
command as needed.
Example: If the command syntax is
ethernet/2/1[<parameter> <value>]... ,
you enter
ethernet/2/1 and as many
parameter-value pairs as needed.
209564-A
Preface19
italic textIndicates new terms, book titles, and variables in
command syntax descriptions. Where a variable is two
or more words, the words are connected by an
underscore.
Example: If the command syntax is
show at<valid_route>, valid_route is one
variable and you substitute one value for it.
plain Courier
text
Indicates command syntax and system output, for
example, prompts and system messages.
Example:
Set Trap Monitor Filters
separator ( > )Shows menu paths.
Example: Protocols > IP identifies the IP command on
the Protocols menu.
vertical line (
| )Separates choices for command keywords and
arguments. Enter only one of the choices. Do not type
the vertic al line when e ntering the co mmand.
Example: If the command syntax is
show ip {alerts|routes}, you enter either
show ip alerts or show ip routes, but not
both.
Using the Passport 8683POS Module
20Preface
Related publications
For more information about Passport 8600 series products and management
software, refer to the following publications:
•Installing the Passport 8683POS Module MDAs (part number 209565-A)
•Getting Started with the Passport 8000 Series Management Software
(part number 209663-C)
•Using the Passport 8600 Modules (part number 207306-C)
•Installation Instructions for the Passport 8600 Modules
(part number 207372-C)
•Networking Concepts for the Passport 8000 Series Switch
(part number 207307-C)
•Passport 8000 Series Network Design Guidelines, Release 3.0
Implementa tion Notes (part number 210128-A)
•Reference for the Passport 8000 Series Command Line Interface Switching
Operations Release 3.1 ( par t number 207308-D)
•Reference for the Passport 8000 Series Command Line Interface Routing
Operations Release 3.1 ( par t number 208967-C)
•Reference for the Passport 8000 Series Management Software Switching
Operations Release 3.1 ( par t number 207414-D)
•Reference for the Passport 8000 Series Management Software Routing
Operations Release 3.1 ( par t number 207415- C)
•Release Notes for the Passport 8000 Series Switch (part number 211014-A)
209564-A
You can print selected technical manuals and release notes free, directly from the
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ERC at the bottom of the page.
Preface21
Using the Passport 8683POS Module
22Preface
209564-A
Chapter 1
About the Passport 8683POS Module
The Passport 8683POS Module provides network transmission using packet over
Synchronous Optical Net work (SONET) services . The Passport 8683POS Module
for the Passport 8600 series routing switches provides WAN support to the
Passport product line by allowing access to SONET services in the metropolitan
area. Where multiple campuses exist in a single metropolitan area, you can
connect these campuses without compromising performance or increasing
complexity.
The Passport 8683POS Module is a baseboa rd with s lots fo r three of the following
two optiona l media depe ndent adapte rs (MDAs):
•1-port OC-12c/STM-4: single-mode fiber (SMF) or multimode fiber (MMF)
using SONET/SDH
•2-port OC-3c/STM-1: SMF or MMF using SONET/SDH
23
The Passport 8683POS Module supports up to six input/output (I/O) OC-3c/
STM-1 lines and up to three I/O OC-12 lines. You can mix these MDAs on a
single Passport 8683POS Modul e. For example , you can put an OC-12 MDA into
the first slot and OC-3 MDAs into the two remaining slots. For information on OC
lines, PPP, and SONET, refer to Chapter 2, “Using the Passport 8683POS
Module,” on page 29.
You can put more than one Passport 8683POS Modul e in the Pas sport 8600 seri es
chassis, except slots 5 and 6, which are reserved for the Passport 8690 Switch
Fabric (SF) modules. The maximum number of modules on a chassis is four.
One Passport 8690 SF module acts as the CPU for the chassis, and the other
module is the standby CPU, taking over in case of failure. If a CPU failover
occurs, all traffic on the chassis stops momentarily while the standby CPU
reinitializes all input/output modules.
Using the P assport 8683POS Module
24Chapter 1 About the Passport 8683POS Module
Refer to Networking Concepts for the Passport 8000 Series Switch, Release 3.1
for a thorough discussion of the complete func tionality of the Passport product
line, including the Passport 8683POS Module.
This chapter provides the following information about the Passport 8683POS
Module:
•“Features,” next
•“Physical description” on page 25
Features
The Passport 8683POS Module has the following features:
•SONET and SDH compliant, supporting OC-3c/STM-1 and OC-12c/STM-4
framing
•Front-panel LEDs to monitor port activity and module operation
•Ability to remove and insta ll a module (hot- swap) without r esetting the sw itch
•MTBF of 150,000 hours
•Internal and external loopback support on all ports for testing purposes
•Hardware diagnostics
•Brouter port configuratio n
•Bridging support: RFC 1638-compliant
•Routing support for both unicast and multicast IP and IPX routing
•Support for both single-mode fiber (SMF) and multimode fiber (MMF)
cabling
•Support for DVMRP
•Support for IGMP
•Support for MultiLink Trunking (MLT)
•Support for the following VLAN features currently implemented in the
•Manageable through the Passport CLI or Device Manager, the SNMP-based
graphical user interface
•Monitored through a World Wide Web browser from anywhere on the
network
Physical description
Chapter 1 About the Passport 8683POS Module25
_
The Passport 8683POS Module ( Figure 1) is a single-slot module for the Passport
8600 series chassis. Online LEDs indicate module operation.
Figure 1 Passport 8683POS Module
Link
Diag Port
Console
8683POS
OnlineMDA 3MDA 2MDA1
To configure and manage the Passport 8683POS Module, connect to the Passport
8690 SF module. For information on connecting to the Passport 8690 SF console
port, refer to Using the Passport 8600 Modules.
Using the Passport 8683POS Module
26Chapter 1 About the Passport 8683POS Module
Media dependent adapters
The Passport 8683POS Module has slots for three media dependent adapters
(MDAs) that have their own LEDs. You can use up to three of the following
MDAs with the Passport 8683POS Module:
•1-port OC-12c/STM-4: SMF or MMF using SONET/SDH
•2-port OC-3c/STM-1: SMF or MMF using SONET/SDH
You can mix these MDAs on the Passport 8683POS Module.
Figure 2 shows the OC-12c/STM-4 MDA, and Figure 3 shows the OC-3c/STM-1
MDA.
Figure 2 1-port OC-12c/STM-4 MDA
209564-A
9902EB
Figure 3 2-port OC-3c/STM-1 MDA
9903EB
Chapter 1 About the Passport 8683POS Module27
Figure 4 shows the Passport 8683POS Module with the OC-12c/STM-4 MDA
installed. (For information on installing the MDAs, refer to Installing the Passport
8683POS Module MDAs.
Figure 4 Passport 868POS module with an OC-12c/STM-4 MDA
Link
Diag Port
Console
8683POS
OnlineMDA 3MDA 2MDA1
10040EA
Online LED
The front panel of the Passport 8683POS Module has an Online LED that
indicates whether or not the module has power applied and is i ni ti al iz ed correctly.
When the Passport 8683POS Module is first inserted into the chassis, the Online
LED turns amber until the board is recognized by the system and passes a
power-on self -test. I f the modu le fail s the self -test, t he light i s of f. When the board
passes the self-test and goes online, the LED illuminates a solid green.
Note: You cannot configure the Passport 8683POS Module until the
online LED on the module is steadily lit green and you have inserted at
least one MDA.
Table 1 lists the Passport 8683POS Module online LED indications.
Table 1 Passport 8683POS Module online LED indications
Online LEDState
OffCard is not receiving power.
AmberCard is initializing or downloading.
AmberCard is offline.
GreenCard is online.
Using the Passport 8683POS Module
28Chapter 1 About the Passport 8683POS Module
MDA LEDs
Table 2 lists the MDA L ED indications.
Table 2 MDA LED indications
Tx LEDRx LEDPort State
AmberAmberAdminDown/Out-of-Service
OffAmberAdminUp/In-Service/Sonet-alarm-condition
AmberGreenAdminUp/In-Service/Sonet-Up/PPP link
OffGreenAdminUp/In-Service/Sonet-Up/PPP-UP
Green (Blinking)Green (Blinking)Admin Up/In-Service/Traffic Activity
Console and Diag ports
Use the Console port on the Passport 8690 SF module to access management
functions for t he Passpo rt 8683POS Modu le. For i nformatio n on con necting t o the
console port on the Passport 8690 SF module, refer to Getting Started with the Passport 8000 Series Management Software .
down
209564-A
The Diag port on the Passport 8683POS Module i s used only by Nortel Networks
personnel for debugging purposes. You can see diagnostic messages but you
cannot input any text.
The Diag port on the module is an RJ-45 port that allows out-of-band
management by Nortel Networks personnel.
Chapter 2
Using the Passport 8683POS Module
A typical application consists of a single Passport 8683POS Module in an
Passport 8600 seri es switch, but mul tiple modules ar e also support ed. This chapte r
briefly explains how the Passport 8683POS Module operates within the Passport
switch.
A typical network application of the Passport 8683POS Module is a direct
connection between one Passport 8600 series switch with a Passport 8683POS
Module in one campus to an identical module in another Passport 8600 series
switch at another campus connected over a SONET ring. Using this connection,
you achieve an intercampus link through packet over SONET (POS) technology.
This chapter contains the following informatio n:
•“SONET transmission,” next
•“Spanning tree group feature” on page 33
29
SONET transmission
You can connect the Passport 8683POS Module through a Synchronous Optical
Network (SONET) termination multiplexor to extend the range of the wide area
network (WAN) connections. Or , you can connect the Passpor t 8683POS Module,
using fiber, directly to a POS interface on another Passport routing switch or on a
traditional router.
The SONET frames received from the WAN contain IP packets encapsulated in
Point-to-Point Protocol (PPP) that are converted by the Passport 8683POS
Module into an Ethernet format. Similarly, the Passport 8683POS Module
receives Ethernet frames and converts them into PPP packets for transmission
over SONET.
Using the P assport 8683POS Module
30Chapter 2 Using the Passport 8683POS Module
SONET terms and acronyms
This section provides a brief listing of common Synchronous Optical Network
(SONET) terms. SONET is a medium fo r transmittin g data that use s fiber-optic
cables.
The following terms and acronyms are frequently used with SONET information:
•SONET: Synchronous Optical Network. SONET is a family of fiber optic
transmission rates that provides th e flexibility to transport many digital
signals with different capacities. This ANSI standard provides for
transmission from OC-1 to OC-48 and greater.
•SDH: Synchronous Digital Hierarchy. SDH is a standard technology for
optical fiber-based synchronous data transmission. SDH is the international
equivalent of SONET.
•OC-3c/STM-1: Optical Carrier-level 3 concatenation. OC-3c/STM-1 is an
optical fiber tr ans mi ss io n system that carrie s STS -3c /STM -1 frame structures
at 155 Mb/s. Concatenat ion re fers to t he fact t hat there is only one logical data
stream (rather than supporting a channelized structure).
•OC-12c/STM-4: Optical Carrier -level 12 concate nation. OC-1 2c/STM-4 i s an
optical fiber transmission system that carries STS-12c/STM-4 frame
structures at 622 Mb/s. Concatenation refers to the fact that there is only one
logical data stream (rather than supporting a channelized structure).
•POS: Packet over SONET.
•PPP: Point-to-Point Protocol. PPP encapsulates common network-layer
protocols in specialized Network Control protocol packets, such as IP over
PPP (IPCP) and IPX over PPP (IPXCP), and BCP. Thus, it enables sending
multiprotocol data ove r point-to-point links.
209564-A
SONET/SDH transmission rates
The following transmission rates are commonly used with SONET:
•OC-3c/STM-1: 155.52 Mb/s
•OC-12c/STM-4: 622.08 Mb/s
The SONET specification defines optical both as:
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