Dell M6348, M8024, M6220 User Manual

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Dell™ PowerConnect™ M6220/M6348/M8024

User’s Guide

Model M6220/M6348/M8024

w w w . d e l l . c o m | s u p p o r t . d e l l . c o m

Notes, Notices, and Cautions

A NOTE indicates important information that helps you make better use of your switch.

A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

A CAUTION indicates a potential for property damage, personal injury, or death.

____________________

Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, PowerEdge, PowerConnect, and OpenManage are trademarks of Dell Inc.; Microsoft and Windows are registered trademarks of Microsoft Corporation.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.

Model M6220/M6348/M8024

June 2009

Rev. A01

Contents

1 Introduction

Switching Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18
Virtual Local Area Network Supported Features . . . . . . . . . . . . . .	21
Link Aggregation Features . . . . . . . . . . . . . . . . . . . . . . . . .	24
MAC Address Supported Features . . . . . . . . . . . . . . . . . . . . .	26
IPv4 Routing Features. . . . . . . . . . . . . . . . . . . . . . . . . . . .	27
IPv6 Routing Features. . . . . . . . . . . . . . . . . . . . . . . . . . . .	28

IPv6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	28
Quality of Service Features . . . . . . . . . . . . . . . . . . . . . . . . . . .	29
Multicast Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	30
IPv4 Multicast Features. . . . . . . . . . . . . . . . . . . . . . . . . . .	30
IPv6 Multicast Features. . . . . . . . . . . . . . . . . . . . . . . . . . .	31
Security Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	31
CLI Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	32

2 Using Dell™ OpenManage™ Switch Administrator

Verifying the Out-of-Band (OOB) IP Address . . . . . . . . . . . . . . . .	34
Setting a Static IP Address . . . . . . . . . . . . . . . . . . . . . . . . .	34
Understanding the Interface . . . . . . . . . . . . . . . . . . . . . . . . . . .	35
Information Buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . .	40
Device Management Buttons. . . . . . . . . . . . . . . . . . . . . . . .	40
Defining Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	41
Accessing the Switch Through the CLI . . . . . . . . . . . . . . . . . . . . .	41
Telnet Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	42
Using the CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	42
Command Mode Overview . . . . . . . . . . . . . . . . . . . . . . . . .	42
User EXEC Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	43
Privileged EXEC Mode . . . . . . . . . . . . . . . . . . . . . . . . . . .	43
Global Configuration Mode . . . . . . . . . . . . . . . . . . . . . . . . .	44
Interface Configuration Mode . . . . . . . . . . . . . . . . . . . . . . .	44

3 Cable and Port Information

	Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	45
	Connecting the Switch to a Terminal . . . . . . . . . . . . . . . . . . . .	48
	Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	48
4	Hardware Description
	Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	49
	Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . .	53
	Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	53
	Ventilation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	53
	Stacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	54
	PowerConnect LED Definitions . . . . . . . . . . . . . . . . . . . . . . .	56
5	Configuring Dell™ PowerConnect™
	Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	63
	Starting the CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	64
	General Configuration Information . . . . . . . . . . . . . . . . . . . . . . .	66
	Terminal Connection Configuration. . . . . . . . . . . . . . . . . . . . .	66
	Other Configuration Requirements . . . . . . . . . . . . . . . . . . . . .	66
	Booting the Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	67
	Configuration Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	73
	Easy Setup Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	73
	Advanced Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	78
	CLI Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	78
	M6220, M6348, and M8024CLI Reference Guide . . . . . . . . . . . . . .	80
	Security Management and Password Configuration. . . . . . . . . . . .	83
	Software Download Through TFTP Server . . . . . . . . . . . . . . . . .	85
	Update Bootcode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	87
	Boot Menu Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	87
	Start Operational Code . . . . . . . . . . . . . . . . . . . . . . . . . . .	88
	Change the Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . .	88
	Retrieve Event Log using XMODEM . . . . . . . . . . . . . . . . . . . .	89
	Load New Operational Code Using XMODEM . . . . . . . . . . . . . . .	89

Display Operational Code Vital Product Data . . . . . . . . . . . . . . .	90
Update Boot Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	91
Reset the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	92
Restore Configuration to Factory Defaults . . . . . . . . . . . . . . . . .	92
Password Recovery Procedure . . . . . . . . . . . . . . . . . . . . . .	93
Sample Configuration Process . . . . . . . . . . . . . . . . . . . . . . . . .	93
Initial Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	94
Device Default Settings. . . . . . . . . . . . . . . . . . . . . . . . . . .	99
Enabling Remote Management . . . . . . . . . . . . . . . . . . . . . . .	99
Configuring Secure Management Access (HTTPS) . . . . . . . . . . .	102

6 Configuring System Information

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	103
Asset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	104
System Health. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	106
Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	107
System Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . .	108
Time Zone Configuration . . . . . . . . . . . . . . . . . . . . . . . . .	109
Summer Time Configuration . . . . . . . . . . . . . . . . . . . . . . .	110
Clock Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	112
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	113
SNTP Global Settings . . . . . . . . . . . . . . . . . . . . . . . . . . .	115
SNTP Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . .	116
SNTP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	119

Managing Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	122
Global Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	122
RAM Log Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	125
Log File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	126
Remote Log Server Settings . . . . . . . . . . . . . . . . . . . . . . .	127

Setting the Operational Mode . . . . . . . . . . . . . . . . . . . . . . . . .	130
Operational Mode Configuration . . . . . . . . . . . . . . . . . . . . .	130
Defining IP Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . .	132
Domain Name Server (DNS) . . . . . . . . . . . . . . . . . . . . . . .	134
Default Domain Name . . . . . . . . . . . . . . . . . . . . . . . . . .	135
Host Name Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . .	137
Dynamic Host Name Mapping . . . . . . . . . . . . . . . . . . . . . .	139

Running Cable Diagnostics

ARP Table . . . . . . . . . . . . . . . . .

IPv6 Management Features . . . . . . .

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Integrated Cable Test for Copper Cables . Optical Transceiver Diagnostics . . . . .

Managing Device Security . . . . . . . . . .

Access Profile . . . . . . . . . . . . . .

Authentication Profiles . . . . . . . . . .

Select Authentication. . . . . . . . . . .

Password Management . . . . . . . . .

Local User Database . . . . . . . . . . .

Line Passwords . . . . . . . . . . . . . .

Enable Password . . . . . . . . . . . . .

TACACS+ Settings . . . . . . . . . . . .

RADIUS Global Configuration. . . . . . .

RADIUS Server Configuration . . . . . .

RADIUS Accounting Server Configuration RADIUS Accounting Server Statistics . . RADIUS Server Statistics . . . . . . . . .

Authorization Network RADIUS . . . . .

Telnet Server . . . . . . . . . . . . . . .

Denial of Service . . . . . . . . . . . . .

Captive Portal . . . . . . . . . . . . . . . . .

CP Global Configuration . . . . . . . . .

CP Configuration . . . . . . . . . . . . .

CP Web Customization . . . . . . . . . .

Local User. . . . . . . . . . . . . . . . .

User Group . . . . . . . . . . . . . . . .

Interface Association . . . . . . . . . . .

CP Status . . . . . . . . . . . . . . . . .

CP Activation and Activity Status. . . . .

Interface Activation Status . . . . . . . .

Interface Capability Status . . . . . . . .

Client Summary . . . . . . . . . . . . . .

Client Detail . . . . . . . . . . . . . . . .

CP Interface Client Status . . . . . . . .

CP Client Status . . . . . . . . . . . . . .

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Defining SNMP Parameters . . . . . . . . . . . . . . . . . . . . . . . . . .	207
SNMP v1 and v2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	207
SNMP v3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	207
SNMP Global Parameters . . . . . . . . . . . . . . . . . . . . . . . .	208
SNMP View Settings . . . . . . . . . . . . . . . . . . . . . . . . . . .	209
Access Control Group . . . . . . . . . . . . . . . . . . . . . . . . . .	212
SNMPv3 User Security Model (USM) . . . . . . . . . . . . . . . . . .	215
Communities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	219
Notification Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	222
Notification Recipients . . . . . . . . . . . . . . . . . . . . . . . . . .	225

File Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	229
File System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	229
Active Images. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	230
File Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	230
File Upload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	233
Copy Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	234

Defining Advanced Settings . . . . . . . . . . . . . . . . . . . . . . . . . .	236
Auto Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . .	236
Defining Stacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	238
Stacking Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	238
Unit Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . .	238
Stack Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	240
Supported Switches . . . . . . . . . . . . . . . . . . . . . . . . . . .	241
Stack Port Summary . . . . . . . . . . . . . . . . . . . . . . . . . . .	243
Stack Port Counters. . . . . . . . . . . . . . . . . . . . . . . . . . . .	244
Stack Port Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .	245
sFlow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	245
sFlow Agent Summary . . . . . . . . . . . . . . . . . . . . . . . . . .	246
sFlow Receiver Configuration . . . . . . . . . . . . . . . . . . . . . .	247
sFlow Sampler Configuration . . . . . . . . . . . . . . . . . . . . . . .	249
sFlow Poll Configuration . . . . . . . . . . . . . . . . . . . . . . . . .	251
Industry Standard Discovery Protocol. . . . . . . . . . . . . . . . . . . . .	253
ISDP Global Configuration . . . . . . . . . . . . . . . . . . . . . . . .	253
Cache Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	255
Interface Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .	256
ISDP Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	257

7 Configuring Switching Information

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	259
Dot1x Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . .	260
Authenticated Users . . . . . . . . . . . . . . . . . . . . . . . . . . .	265
Port Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	266
IP ACL Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . .	267
IP ACL Rule Configuration . . . . . . . . . . . . . . . . . . . . . . . .	270
MAC ACL Configuration. . . . . . . . . . . . . . . . . . . . . . . . . .	273
MAC ACL Rule Configuration . . . . . . . . . . . . . . . . . . . . . . .	275
IPv6 Access Control Lists . . . . . . . . . . . . . . . . . . . . . . . . .	277
IPv6 ACL Rule Configuration . . . . . . . . . . . . . . . . . . . . . . .	279
ACL Bind Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .	283

Configuring Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	285
Global Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . .	285
Port Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . .	286
Protected Port Configuration . . . . . . . . . . . . . . . . . . . . . . .	290
LAG Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . .	292
Storm Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	294

Configuring Traffic Mirroring . . . . . . . . . . . . . . . . . . . . . . . . .	296
Port Mirroring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	296
Flow Based Mirroring. . . . . . . . . . . . . . . . . . . . . . . . . . .	299
Configuring Address Tables . . . . . . . . . . . . . . . . . . . . . . . . . .	300
Static Address Table . . . . . . . . . . . . . . . . . . . . . . . . . . .	300
Dynamic Address Table. . . . . . . . . . . . . . . . . . . . . . . . . .	303
Configuring GARP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	305
GARP Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	305
Configuring the Spanning Tree Protocol . . . . . . . . . . . . . . . . . . .	308
STP Global Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . .	308
STP Port Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	310
STP LAG Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	313
Rapid Spanning Tree . . . . . . . . . . . . . . . . . . . . . . . . . . .	316
MSTP Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	318
MSTP Interface Settings . . . . . . . . . . . . . . . . . . . . . . . . .	320
Configuring VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	322
VLAN Membership . . . . . . . . . . . . . . . . . . . . . . . . . . . .	323
Double VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	326

VLAN Port Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . .	330
VLAN LAG Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . .	333
Bind MAC to VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . .	335
Bind IP Subnet to VLAN. . . . . . . . . . . . . . . . . . . . . . . . . .	337
Protocol Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	339
GVRP Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	342
Configuring Voice VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . .	345
Aggregating Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	347
LACP Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	347
LAG Membership . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	349
LAG Hash Configuration . . . . . . . . . . . . . . . . . . . . . . . . .	351
LAG Hash Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . .	352
Managing Multicast Support . . . . . . . . . . . . . . . . . . . . . . . . .	353
Multicast Global Parameters . . . . . . . . . . . . . . . . . . . . . . .	354
Bridge Multicast Group . . . . . . . . . . . . . . . . . . . . . . . . . .	355
Bridge Multicast Forward. . . . . . . . . . . . . . . . . . . . . . . . .	359
IGMP Snooping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	360
General IGMP Snooping . . . . . . . . . . . . . . . . . . . . . . . . .	361
Global Querier Configuration . . . . . . . . . . . . . . . . . . . . . . .	363
VLAN Querier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	365
VLAN Querier Status . . . . . . . . . . . . . . . . . . . . . . . . . . .	367
MFDB IGMP Snooping Table . . . . . . . . . . . . . . . . . . . . . . .	368
MRouter Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	369
MLD Snooping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	370
MLD Snooping General . . . . . . . . . . . . . . . . . . . . . . . . . .	370
MLD Snooping Global Querier Configuration. . . . . . . . . . . . . . .	372
MLD Snooping VLAN Querier. . . . . . . . . . . . . . . . . . . . . . .	373
MLD Snooping VLAN Querier Status . . . . . . . . . . . . . . . . . . .	375
MFDB MLD Snooping Table . . . . . . . . . . . . . . . . . . . . . . .	376
Configuring the Link Layer Discovery Protocol (LLDP) . . . . . . . . . . . .	377
LLDP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . .	377
LLDP Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	380
LLDP Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . .	382
Creating Link Dependencies. . . . . . . . . . . . . . . . . . . . . . . . . .	384
Link Dependency Summary. . . . . . . . . . . . . . . . . . . . . . . .	384

Dynamic ARP Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . .	387
DAI Global Configuration . . . . . . . . . . . . . . . . . . . . . . . . .	387
DAI Interface Configuration . . . . . . . . . . . . . . . . . . . . . . .	388
DAI VLAN Configuration . . . . . . . . . . . . . . . . . . . . . . . . .	390
DAI ACL Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .	391
DAI ACL Rule Configuration. . . . . . . . . . . . . . . . . . . . . . . .	392
DAI Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	394

DHCP Snooping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	395
DHCP Snooping Configuration . . . . . . . . . . . . . . . . . . . . . .	396
DHCP Snooping Interface Configuration . . . . . . . . . . . . . . . . .	397
DHCP Snooping VLAN Configuration . . . . . . . . . . . . . . . . . . .	399
DHCP Snooping Persistent Configuration . . . . . . . . . . . . . . . .	400
DHCP Snooping Static Bindings Configuration. . . . . . . . . . . . . .	401
DHCP Snooping Dynamic Bindings Summary . . . . . . . . . . . . . .	403
DHCP Snooping Statistics . . . . . . . . . . . . . . . . . . . . . . . .	405
IP Source Guard . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	406

DHCP Relay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	408
DHCP Relay Global Configuration . . . . . . . . . . . . . . . . . . . .	409
DHCP Relay Interface Configuration . . . . . . . . . . . . . . . . . . .	410
DHCP Relay Interface Statistics . . . . . . . . . . . . . . . . . . . . .	411
DHCP Relay VLAN Configuration . . . . . . . . . . . . . . . . . . . . .	413

Using the Port Aggregator Feature . . . . . . . . . . . . . . . . . . . . . .	414
Port Configuration Summary . . . . . . . . . . . . . . . . . . . . . . .	415
Group Configuration Summary . . . . . . . . . . . . . . . . . . . . . .	417
Group VLAN MAC Summary . . . . . . . . . . . . . . . . . . . . . . .	420

8 Viewing Statistics and Remote Monitoring

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	421
Table Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	422
Interface Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . .	422
Etherlike Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . .	424
GVRP Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	425
EAP Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	427
Utilization Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . .	429
Counter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	430

RMON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	431
RMON Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	432
RMON History Control Statistics . . . . . . . . . . . . . . . . . . . . .	434
RMON History Table . . . . . . . . . . . . . . . . . . . . . . . . . . .	436
RMON Event Control . . . . . . . . . . . . . . . . . . . . . . . . . . .	438
RMON Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	441
RMON Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	442

Charts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	446
Ports Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	446
LAG Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	448

9 Configuring Routing

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	451
ARP Create . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	453
ARP Table Configuration . . . . . . . . . . . . . . . . . . . . . . . . .	454
IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	456
IP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	456
IP Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	458
IP Interface Configuration . . . . . . . . . . . . . . . . . . . . . . . .	461
OSPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	463
OSPF Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . .	464
Area Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . .	467
Stub Area Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . .	470
Area Range Configuration . . . . . . . . . . . . . . . . . . . . . . . .	471
Interface Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . .	473
Interface Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .	475
Neighbor Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	480
Neighbor Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .	481
Link State Database. . . . . . . . . . . . . . . . . . . . . . . . . . . .	484
Virtual Link Configuration . . . . . . . . . . . . . . . . . . . . . . . . .	485
Virtual Link Summary . . . . . . . . . . . . . . . . . . . . . . . . . . .	491
Route Redistribution Configuration . . . . . . . . . . . . . . . . . . . .	493
Route Redistribution Summary . . . . . . . . . . . . . . . . . . . . . .	496
BOOTP/DHCP Relay Agent . . . . . . . . . . . . . . . . . . . . . . . . . . .	497
BOOTP/DHCP Relay Agent Configuration . . . . . . . . . . . . . . . .	498
BOOTP/DHCP Relay Agent Status . . . . . . . . . . . . . . . . . . . .	499

IP Helper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	500
IP Helper Global Configuration . . . . . . . . . . . . . . . . . . . . . .	501
IP Helper Interface Configuration . . . . . . . . . . . . . . . . . . . .	504
IP Helper Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . .	506

RIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	507
RIP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	508
RIP Interface Summary . . . . . . . . . . . . . . . . . . . . . . . . . .	510
RIP Interface Configuration. . . . . . . . . . . . . . . . . . . . . . . .	512
RIP Route Redistribution Configuration. . . . . . . . . . . . . . . . . .	514
RIP Route Redistribution Summary . . . . . . . . . . . . . . . . . . . .	517

Router Discovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	518
Router Discovery Configuration . . . . . . . . . . . . . . . . . . . . .	518
Router Discovery Status . . . . . . . . . . . . . . . . . . . . . . . . .	520
Router. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	521
Route Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	522
Best Routes Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . .	523
Route Entry Configuration. . . . . . . . . . . . . . . . . . . . . . . . .	525
Configured Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . .	528
Route Preferences Configuration. . . . . . . . . . . . . . . . . . . . .	529
VLAN Routing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	531
VLAN Routing Configuration . . . . . . . . . . . . . . . . . . . . . . .	532
VLAN Routing Summary . . . . . . . . . . . . . . . . . . . . . . . . .	533
VRRP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	534
VRRP Router Configuration . . . . . . . . . . . . . . . . . . . . . . . .	535
VRRP Virtual Router Status . . . . . . . . . . . . . . . . . . . . . . . .	540
VRRP Virtual Router Statistics . . . . . . . . . . . . . . . . . . . . . .	542
Tunnels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	544
Tunnels Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . .	545
Tunnels Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	548
Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	549
Loopbacks Configuration . . . . . . . . . . . . . . . . . . . . . . . . .	550
Loopbacks Summary . . . . . . . . . . . . . . . . . . . . . . . . . . .	556

10 Configuring IPv6

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	557
Global Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	558
Interface Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . .	559
Interface Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	562
IPv6 Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	563
IPv6 Neighbor Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	568
DHCPv6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	569
DHCPv6 Global Configuration. . . . . . . . . . . . . . . . . . . . . . .	570
DHCPv6 Pool Configuration . . . . . . . . . . . . . . . . . . . . . . . .	572
Prefix Delegation Configuration . . . . . . . . . . . . . . . . . . . . .	575
DHCPv6 Pool Summary . . . . . . . . . . . . . . . . . . . . . . . . . .	577
DHCPv6 Interface Configuration . . . . . . . . . . . . . . . . . . . . .	578
DHCPv6 Server Bindings Summary. . . . . . . . . . . . . . . . . . . .	581
DHCPv6 Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	582
OSPFv3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	584
OSPFv3 Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . .	585
OSPFv3 Area Configuration . . . . . . . . . . . . . . . . . . . . . . . .	588
OSPFv3 Stub Area Summary . . . . . . . . . . . . . . . . . . . . . . .	592
OSPFv3 Area Range Configuration . . . . . . . . . . . . . . . . . . . .	593
OSPFv3 Interface Configuration . . . . . . . . . . . . . . . . . . . . .	595
OSPFv3 Interface Statistics. . . . . . . . . . . . . . . . . . . . . . . .	598
OSPFv3 Neighbors . . . . . . . . . . . . . . . . . . . . . . . . . . . .	600
OSPFv3 Neighbor Table . . . . . . . . . . . . . . . . . . . . . . . . . .	603
OSPFv3 Link State Database . . . . . . . . . . . . . . . . . . . . . . .	605
OSPFv3 Virtual Link Configuration . . . . . . . . . . . . . . . . . . . .	607
OSPFv3 Virtual Link Summary . . . . . . . . . . . . . . . . . . . . . .	610
OSPFv3 Route Redistribution Configuration . . . . . . . . . . . . . . .	611
OSPFv3 Route Redistribution Summary . . . . . . . . . . . . . . . . .	613
IPv6 Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	614
IPv6 Route Entry Configuration . . . . . . . . . . . . . . . . . . . . . .	614
IPv6 Route Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	616
IPv6 Route Preferences. . . . . . . . . . . . . . . . . . . . . . . . . .	617
Configured IPv6 Routes . . . . . . . . . . . . . . . . . . . . . . . . . .	619

11 Configuring Quality of Service

Quality of Service Overview . . . . . . . . . . . . . . . . . . . . . . . . . .	621
Configuring Differentiated Services. . . . . . . . . . . . . . . . . . . . . .	622
DiffServ Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . .	622
Defining DiffServ . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	622
Diffserv Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . .	623
Class Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . .	624
Class Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	626
Policy Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . .	630
Policy Class Definition . . . . . . . . . . . . . . . . . . . . . . . . . .	633
Service Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . .	637
Service Detailed Statistics . . . . . . . . . . . . . . . . . . . . . . . .	638
Class of Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	639
Mapping Table Configuration . . . . . . . . . . . . . . . . . . . . . . .	640
Interface Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .	644
Interface Queue Configuration . . . . . . . . . . . . . . . . . . . . . .	645
Auto VoIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	648
Auto VoIP Global Configuration. . . . . . . . . . . . . . . . . . . . . .	648
Auto VoIP Interface Configuration . . . . . . . . . . . . . . . . . . . .	649

12 Configuring IP Multicast

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	651
Multicast Global Configuration . . . . . . . . . . . . . . . . . . . . . .	652
Multicast Interface Configuration . . . . . . . . . . . . . . . . . . . .	655
Multicast Mroute Summary. . . . . . . . . . . . . . . . . . . . . . . .	656
Multicast Static Routes Configuration . . . . . . . . . . . . . . . . . .	658
Multicast Static Routes Summary . . . . . . . . . . . . . . . . . . . .	659
Multicast Admin Boundary Configuration . . . . . . . . . . . . . . . .	660
Multicast Admin Boundary Summary . . . . . . . . . . . . . . . . . .	662
Multicast Route Table. . . . . . . . . . . . . . . . . . . . . . . . . . .	663

Multicast Listener Discovery . . . . . . . . . . . . . . . . . . . . . . . . .	664
MLD Global Configuration . . . . . . . . . . . . . . . . . . . . . . . .	664
MLD Routing Interface Configuration . . . . . . . . . . . . . . . . . .	665
MLD Routing Interface Summary . . . . . . . . . . . . . . . . . . . . .	666
MLD Routing Interface Cache Information . . . . . . . . . . . . . . . .	668
MLD Routing Interface Source List Information . . . . . . . . . . . . .	669

MLD Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	670
MLD Proxy Configuration . . . . . . . . . . . . . . . . . . . . . . . . .	671
MLD Proxy Configuration Summary . . . . . . . . . . . . . . . . . . .	673
Interface Membership Information . . . . . . . . . . . . . . . . . . . .	674
Interface Membership Information—Detailed . . . . . . . . . . . . . .	676
Distance Vector Multicast Routing Protocol . . . . . . . . . . . . . . . . .	677
DVMRP Global Configuration . . . . . . . . . . . . . . . . . . . . . . .	678
DVMRP Interface Configuration . . . . . . . . . . . . . . . . . . . . .	679
DVMRP Configuration Summary . . . . . . . . . . . . . . . . . . . . .	680
Next Hop Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . .	683
Prune Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	684
Route Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	685
Internet Group Management Protocol. . . . . . . . . . . . . . . . . . . . .	686
IGMP Global Configuration . . . . . . . . . . . . . . . . . . . . . . . .	687
Routing Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	688
Proxy Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	695
Protocol Independent Multicast-Dense Mode . . . . . . . . . . . . . . . .	701
PIM-DM Global Configuration . . . . . . . . . . . . . . . . . . . . . .	702
PIM-DM Global Status . . . . . . . . . . . . . . . . . . . . . . . . . .	703
PIM-DM Interface Configuration . . . . . . . . . . . . . . . . . . . . .	704
PIM-DM Interface Summary . . . . . . . . . . . . . . . . . . . . . . .	705
Candidate RP Configuration . . . . . . . . . . . . . . . . . . . . . . .	707
Static RP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .	709
SSM Range Configuration . . . . . . . . . . . . . . . . . . . . . . . .	711
BSR Candidate Configuration. . . . . . . . . . . . . . . . . . . . . . .	713
BSR Candidate Summary . . . . . . . . . . . . . . . . . . . . . . . . .	714
Protocol Independent Multicast-Sparse Mode . . . . . . . . . . . . . . . .	714
PIM-SM Global Configuration . . . . . . . . . . . . . . . . . . . . . .	715
PIM-SM Global Status . . . . . . . . . . . . . . . . . . . . . . . . . .	718
PIM-SM Interface Configuration . . . . . . . . . . . . . . . . . . . . .	719
PIM-SM Interface Summary . . . . . . . . . . . . . . . . . . . . . . .	721
Component Summary . . . . . . . . . . . . . . . . . . . . . . . . . . .	723
RP Set Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	724
Candidate RP Summary . . . . . . . . . . . . . . . . . . . . . . . . . .	725
Static RP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .	726

13 Getting Help

Online Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	730
Automated Order-Status Service . . . . . . . . . . . . . . . . . . . . .	731
Support Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	731
Dell Enterprise Training and Certification. . . . . . . . . . . . . . . . . . .	731
Problems With Your Order . . . . . . . . . . . . . . . . . . . . . . . . . . .	731
Product Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	732
Returning Items for Warranty Repair or Credit . . . . . . . . . . . . . . . .	732
Before You Call. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	732
Contacting Dell. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	734

Introduction

This section describes the switch user-configurable features. For a list of all features, see the software version release notes.

Note: Before proceeding, read the release notes for this product. You can download the release notes from the Dell Support website, support.dell.com.

The Dell™ PowerConnect™ M6348 is a Stackable Layer 3, Gigabit Ethernet modular switch for use in the Dell M1000e Chassis

The Dell™ PowerConnect™ M8024 is a non-Stackable Layer 3, 10 Gigabit Ethernet modular switch for use in the Dell M1000e Chassis.

The Dell™ PowerConnect™ M6220 is a Stackable Layer 3, Gigabit Ethernet modular switch for use in the Dell M1000e Chassis.

The topics covered in this section include:

•System Features

•Switching Features

•Routing Features

•IPv6

•Quality of Service Features

•Multicast Features

•CLI Documentation

Introduction 15

System Features

sFlow

sFlow is the standard for monitoring high-speed switched and routed networks. sFlow technology is built into network equipment and gives complete visibility into network activity, enabling effective management and control of network resources.

CDP Interoperability

Allows the PowerConnect switch to interoperate with Cisco™ devices running CDP.

Industry Standard Discovery Protocol (ISDP) is a proprietary Layer 2 network protocol which interoperates with Cisco network equipment and is used to share information between neighboring devices (routers, bridges, access servers, and switches).

Auto Config

Auto Config is a software feature which provides for the configuration of a switch automatically when the device is initialized and no configuration file is found on the switch. Auto Config is accomplished in three phases:

1.Configuration or assignment of an IP address for the device

2.Assignment of a TFTP server

3.Obtaining a configuration file for the device from the TFTP server

Captive Portal

Blocks clients from accessing the network until user verification has been established. Verification can be configured to allow access for both guest and authenticated users. Authenticated users must be validated against a database of authorized Captive Portal users before access is granted.

SNMP Alarms and Trap Logs

The system logs events with severity codes and timestamps. The events are sent as SNMP traps to a trap recipient list.

For information about SNMP Alarms and Traps, see "Defining SNTP Global Parameters."

Web Based Management

You can manage the system from any web browser. The switch contains an embedded web server that serves HTML pages you can use to monitor and configure the system.

Configuration File Download

The switch’s configuration file includes both system-wide and port-specific device configuration data. You can display configuration files through command-line interface (CLI) commands.

For information about downloading configuration files, see "Downloading Files."

16 Introduction

Software Download

Software download enables storage of backup firmware images. For information about downloading the software, see "Software Download and Reboot."

Trivial File Transfer Protocol (TFTP)

The PowerConnect M6220/M6348/M8024 switches support boot image, firmware, and configuration upload or download through TFTP.

Remote Monitoring (RMON)

RMON is a standard Management Information Base (MIB) that defines current and historical MAClayer statistics and control objects, allowing real-time information to be captured across the entire network.

Simple Network Management Protocol (SNMP) Versions 1, 2, and 3

The system is fully manageable using a combination of MIB variables, whose combined values represent all facets of the system state, and the SNMP protocol to examine and possibly modify these values. SNMP v1/v2c/v3 over the UDP/IP transport protocol is supported.

Command Line Interface

Command Line Interface (CLI) syntax and semantics conform as much as possible to common industry practice. CLI is composed of mandatory and optional elements. Context-sensitive help provides format and value ranges allowed for current commands, and the CLI interpreter provides command and keyword completion.

Syslog

Syslog is a protocol that allows event notifications to be sent to a set of desired remote servers where they can be stored, examined, and acted upon.

For information about Syslog, see "Managing Logs."

SNTP

The Simple Network Time Protocol (SNTP) assures accurate network switch clock time synchronization up to the millisecond. Time synchronization is performed by a network SNTP server.

For more information about SNTP, see "Configuring SNTP Settings."

Simple Mode

Users with a privilege level of 15 can configure the switch to operate in normal mode or simple mode. By default, the switch operates in normal mode. When the PowerConnect M6220/M6348/M8024 Series is operating in simple mode, a limited number of features are available to configure. For features that are not available in simple mode, their administrative Web pages and CLI commands are unavailable.

For more information about Simple Mode, see "Setting the Operational Mode."

Introduction 17

Port Aggregator

The Port Aggregator feature minimizes the administration required for managing the PowerConnect M6220/M6348/M8024. When the switch is operating in simple mode, the administrator can map internal ports to external ports without having to know anything about STP, VLANs, Link Aggregation or other L2/L3 protocols.

For more information configuring the Port Aggregator feature, see "Using the Port Aggregator Feature."

Switching Features

Low Power on Short Cables

For cables of different length, a different level of power back-off should be set for active link to achieve good level of signal and stable data transmit. Power back-off level is determined during the autonegotiation phase. Users can configure or view the maximum length of cable that is connected to transceiver.

IPv6 Access Control Lists

An IPv6 ACL consists of a set of rules which are matched sequentially against a packet. When a packet meets the match criteria of a rule, the specified rule action (Permit/Deny) is taken and the additional rules are not checked for a match.

Access Control List (ACL) Outbound Support

Supports binding of an acl (IP, MAC, or IPV6) in outbound direction on physical, LAG, and VLAN interfaces

IP Source Guard (IPSG)

IP source guard (IPSG) is a security feature that filters IP packets based on the source ID. The source ID may either be source IP address or a source IP address source MAC address pair. IPSG is disabled by default.

DHCP Snooping

DHCP Snooping is a security feature that monitors DHCP messages between a DHCP client and DHCP server. It filters harmful DHCP messages and builds a bindings database of (MAC address, IP address, VLAN ID, port) tuples that are specified as authorized. DHCP snooping can be enabled globally and on specific VLANs. Ports within the VLAN can be configured to be trusted or untrusted. DHCP servers must be reached through trusted ports.

DHCP L2 Relay

Permits L3 Relay agent functionality in L2 switched networks.

18 Introduction

Dynamic ARP Inspection

Dynamic ARP Inspection (DAI) is a security feature that rejects invalid and malicious ARP packets. The feature prevents a class of man-in-the-middle attacks, where an unfriendly station intercepts traffic for other stations by poisoning the ARP caches of its unsuspecting neighbors. The miscreant sends ARP requests or responses mapping another station's IP address to its own MAC address.

Dynamic ARP Inspection relies on DHCP Snooping.

MLD Snooping

In IPv4, Layer 2 switches can use IGMP Snooping to limit the flooding of multicast traffic by dynamically configuring Layer 2 interfaces so that multicast traffic is forwarded to only those interfaces associated with IP multicast address.

In IPv6, MLD snooping performs a similar function. With MLD snooping, IPv6 multicast data is selectively forwarded to a list of ports intended to receive the data (instead of being flooded to all of the ports in a VLAN). This list is constructed by snooping IPv6 multicast control packets.

IGMP Snooping

Internet Group Management Protocol (IGMP) Snooping is a feature that allows a switch to forward multicast traffic intelligently on the switch. Multicast IP traffic is traffic that is destined to a host group. Host groups are identified by class D IP addresses, which range from 224.0.0.0 to 239.255.255.255. Based on the IGMP query and report messages, the switch forwards traffic only to the ports that request the multicast traffic. This prevents the switch from broadcasting the traffic to all ports and possibly affecting network performance.

Port Mirroring

Port mirroring monitors and mirrors network traffic by forwarding copies of incoming and outgoing packets from up to four source ports to a monitoring port.

Broadcast Storm Control

When Layer 2 frames are forwarded, broadcast, unknown unicast, and multicast frames are flooded to all ports on the relevant virtual local area network (VLAN). The flooding occupies bandwidth, and loads all nodes connected on all ports. Storm control limits the amount of broadcast, unknown unicast, and multicast frames accepted and forwarded by the switch.

Introduction 19

Port-Based Features

Jumbo Frames Support

Jumbo frames enable transporting identical data in fewer frames to ensure less overhead, lower processing time, and fewer interrupts.

Auto-MDI/MDIX Support

Your switch supports auto-detection between crossed and straight-through cables.

Media-Dependent Interface (MDI) is the standard wiring for end stations, and the standard wiring for hubs and switches is known as Media-Dependent Interface with Crossover (MDIX).

Auto Negotiation

Auto negotiation allows the switch to advertise modes of operation. The auto negotiation function provides the means to exchange information between two switches that share a point-to-point link segment, and to automatically configure both switches to take maximum advantage of their transmission capabilities.

The PowerConnect M6220/M6348/M8024 enhances auto negotiation by providing port advertisement. Port advertisement allows the system administrator to configure the port speeds advertised.

For information about auto negotiation, see "Port Configuration" or "LAG Configuration."

Flow Control Support (IEEE 802.3x)

Flow control enables lower speed switches to communicate with higher speed switches by requesting that the higher speed switch refrains from sending packets. Transmissions are temporarily halted to prevent buffer overflows.

For information about configuring flow control for ports or LAGs, see "Port Configuration" or "LAG Configuration."

Head of Line Blocking Prevention

Head of Line (HOL) blocking prevention prevents traffic delays and frame loss caused by traffic competing for the same egress port resources. HOL blocking queues packets, and the packets at the head of the queue are forwarded before packets at the end of the queue.

Back Pressure Support

On half-duplex links, a receiver may prevent buffer overflows by occupying the link so that it is unavailable for additional traffic.

20 Introduction

Alternate Store and Forward (ASF)

The Alternate Store and Forward (ASF) feature reduces latency for large packets. When ASF is enabled, the memory management unit (MMU) can forward a packet to the egress port before it has been entirely received on the Cell Buffer Pool (CBP) memory. AFS, which is also known as cut-through mode, is configurable through the command-line interface. For information about how to configure the AFS feature, see the CLI Reference Guide, which is located on the Dell Support website at www.support.dell.com/manuals.

Link Dependency Features

The link dependency feature provides the ability to enable or disable one or more ports based on the state of the link of one or more ports.

For information about Link Dependency, see "Creating Link Dependencies."

Virtual Local Area Network Supported Features

VLAN Support

VLANs are collections of switching ports that comprise a single broadcast domain. Packets are classified as belonging to a VLAN based on either the VLAN tag or a combination of the ingress port and packet contents. Packets sharing common attributes can be groups in the same VLAN.

For information about configuring VLANs, see "Configuring VLANs."

Port-Based VLANs

Port-based VLANs classify incoming packets to VLANs based on their ingress port. When a port uses 802.1X port authentication, packets can be assigned to a VLAN based on the result of the 802.1X authentication a client uses when it accesses the switch. This feature is useful for assigning traffic to Guest VLANs or Voice VLANs.

For information about configuring VLANs, see "Configuring VLANs."

IEEE 802.1v Protocol-Based VLANs

VLAN classification rules are defined on data-link layer (Layer 2) protocol identification. Protocol-based VLANs are used for isolating Layer 2 traffic for differing Layer 3 protocols.

For information about defining Protocol-Based VLANs, see "Protocol Group."

Full 802.1Q VLAN Tagging Compliance

IEEE 802.1Q defines an architecture for virtual bridged LANs, the services provided in VLANs, and the protocols and algorithms involved in the provision of these services.

Introduction 21

GVRP Support

GARP VLAN Registration Protocol (GVRP) provides IEEE 802.1Q-compliant VLAN pruning and dynamic VLAN creation on 802.1Q trunk ports. When GVRP is enabled, the switch registers and propagates VLAN membership on all ports that are part of the active spanning tree protocol topology.

For information about configuring GVRP, see "GVRP Parameters."

Protected Ports (Private VLAN Edge)

Private VLAN Edge (PVE) ports are a Layer 2 security feature that provides port-based security between ports that are members of the same VLAN. It is an extension of the common VLAN. Traffic from protected ports is sent only to the uplink ports and cannot be sent to other ports within the VLAN.

Subnet-based VLAN

This feature allows incoming untagged packets to be assigned to a VLAN and traffic class based on the source IP address of the packet.

For information about configuring Subnet-based VLANs, see "Bind IP Subnet to VLAN."

MAC-based VLAN

This feature allows incoming untagged packets to be assigned to a VLAN and traffic class based on the source MAC address of the packet.

For information about configuring MAC-based VLANs, see "Bind MAC to VLAN."

Double VLANs

The Double VLAN feature allows the use of a second tag on network traffic. The additional tag helps differentiate between customers in the Metropolitan Area Networks (MAN) while preserving individual customer’s VLAN identification when they enter their own 802.1Q domain.

Protocol-based VLANs

In a protocol-based VLAN, traffic is bridged through specified ports based on the VLAN’s protocol. Userdefined packet filters determine if a particular packet belongs to a particular VLAN. Protocol-based VLANs are most often used in situations where network segments contain hosts running multiple protocols.

22 Introduction

Spanning Tree Protocol Features

Spanning Tree now supports IEEE802.1Q-2005

This version of the IEEE Multiple Spanning Tree Protocol corrects problems associated with the previous version, provides for faster transition-to-forwarding, and incorporates new features for a port (restricted role and restricted TCN).

Spanning Tree Enhancements

•Loop Guard — This feature prevents a port from erroneously transitioning from blocking state to forwarding when the port stops receiving BPDUs. The port is marked as being in loop-inconsistent state. In this state, the port does not forward packets. The possible values are Enable or Disable.

•TCN Guard — Enabling the TCN Guard feature restricts the port from propagating any topology change information received through that port. This means that even if a port receives a BPDU with the topology change flag set to true, the port will not flush its MAC address table and send out a BPDU with a topology change flag set to true.

•Auto Edge — Enabling the Auto Edge feature allows the port to become an edge port if it does not see BPDUs for some duration.

•BPDU Filter — When enabled, this feature filters the BPDU traffic on this port when STP is enabled on this port.

•BPDU Flood — When enabled, the BPDU Flood feature floods the BPDU traffic arriving on this port when STP is disabled on this port.

Spanning Tree Protocol (STP) per Switch

802.1d STP is a standard requirement of Layer 2 switches that allows bridges to automatically prevent and resolve L2 forwarding loops.

For information about configuring Spanning Tree Protocol, see "Configuring the Spanning Tree Protocol."

IEEE 802.1w Rapid Spanning Tree

Rapid Spanning Tree Protocol (RSTP) detects and uses network topologies to enable faster spanning tree convergence after a topology change, without creating forwarding loops.

For information about configuring Rapid Spanning Tree Protocol, see "Rapid Spanning Tree."

Multiple Spanning Tree

Multiple Spanning Tree (MSTP) operation maps VLANs to spanning tree instances. Packets assigned to various VLANs are transmitted along different paths within MSTP Regions (MST Regions). Regions are one or more interconnected MSTP bridges with identical MSTP settings. The MSTP standard lets administrators assign VLAN traffic to unique paths.

For information about configuring Multiple Spanning Tree, see "MSTP Settings."

Introduction 23

Spanning Tree Root Guard

Spanning Tree Root Guard is used to prevent the root of a Spanning Tree instance from changing unexpectedly. The priority of a Bridge ID can be set to zero but another Bridge ID with a lower mac address could also set its priority to zero and take over root.

Bridge Protocol Data Unit Guard

Spanning Tree BPDU Guard is used to disable the port in case a new device tries to enter the already existing topology of STP. Thus devices, which were originally not a part of STP, are not allowed to influence the STP topology.

Link Aggregation Features

Link Aggregation

Up to eight ports can combine to form a single Link Aggregated Group (LAG). This enables fault tolerance protection from physical link disruption, higher bandwidth connections and improved bandwidth granularity.

A LAG is composed of ports of the same speed, set to full-duplex operation. For information about configuring LAGs, see "LAG Configuration."

Link Aggregation and LACP

Link Aggregate Control Protocol (LACP) uses peer exchanges across links to determine, on an ongoing basis, the aggregation capability of various links, and continuously provides the maximum level of aggregation capability achievable between a given pair of systems. LACP automatically determines, configures, binds, and monitors the binding of ports to aggregators within the system.

For information about LACP, see "LACP Parameters."

24 Introduction

Routing Features

VLAN Routing

The PowerConnect M6220/M8024/M6348 software supports VLAN routing. You can also configure the software to allow traffic on a VLAN to be treated as if the VLAN were a router port.

Routing Information Protocol (RIP)

The route configuration and route preference features have the following changes:

•You can configure static reject routes (see Static Reject Routes).

•The default values for route preferences have changed.

•OSPF Type-1 and OSPF Type-2 routes are now classified as OSPF External routes.

OSPF Configuration

The Maximum Paths field allows OSPF to report a maximum of 4 paths for a given destination. The following fields have been added for OSPF configuration options:

•Opaque LSA Status

•AS_OPAQUE LSA Count

•AS_OPAQUE LSA Checksum

•External LSDB Limit

•AutoCost Reference Bandwidth

•Default Passive Setting

•Stub Area Type of Service

•NSSA Information

The OSPF Link State Database page has been updated to display external LSDB table information and AS opaque LSDB table information (in addition to OSPF link state information).

IP Configuration

The switch IP configuration settings have been enhanced to allow you to enable or disable the generation of the following types of ICMP messages:

•ICMP Echo Replies

•ICMP Redirects

•ICMP Rate Limit Interval

•ICMP Rate Limit Burst Size

Introduction 25

IP Interface Configuration

IP interface configuration includes the ability to configure the bandwidth, Destination Unreachable messages, and ICMP Redirect messages.

IP Helper

Provides the ability to relay various protocols to servers on a different subnet.

VRRP Route Interface Tracking

Extends the capability of the Virtual Router Redundancy Protocol (VRRP) to allow tracking of specific route/interface IP state within the router that can alter the priority level of a virtual router for a VRRP group.

The exception to this is, if that VRRP group is the IP address owner, its priority is fixed at 255 and can not be reduced through tracking process.

MAC Address Supported Features

MAC Address Support

The switch supports up to 8K Media Access Control (MAC) addresses and reserves two MAC addresses for system use.

Self-Learning MAC Addresses

The switch enables MAC addresses to be automatically learned from incoming packets.

Automatic Aging for MAC Addresses

MAC addresses that have not seen any traffic for a given period are aged out, which prevents the bridging table from overflowing.

For information about configuring the MAC Address age-out period, see "Dynamic Address Table."

Static MAC Entries

User-defined MAC entries are stored in the Bridging Table with the self-learned addresses. For information about configuring the static MAC addresses, see "Static Address Table."

VLAN-Aware MAC-based Switching

Packets arriving from an unknown source address are sent to the CPU and added to the Hardware Table. Future packets addressed to or from this address are more efficiently forwarded.

26 Introduction

MAC Multicast Support

Multicast service is a limited broadcast service that allows one-to-many and many-to-many connections. In Layer 2 multicast services, a single frame addressed to a specific multicast address is received, and copies of the frame to be transmitted on each relevant port are created.

For information about configuring MAC Multicast Support, see "Managing Multicast Support."

IPv4 Routing Features

Address Resolution Protocol

The PowerConnect M6220/M6348/M8024 uses the ARP protocol to associate a layer 2 MAC address with a layer 3 IPv4 address. Additionally, the administrator can statically add entries in to the ARP table.

Open Shortest Path First

The Open Shortest Path First (OSPF) Routing protocol defines two area types: regular OSPF area and OSPF stub area. OSPF internal and external route information may be propagated throughout the regular OSPF area; it is capable of supporting transit traffic and virtual links. OSPF stub areas do not receive external route information; the motivation to configure stub areas is to limit the size of the area database for those routers that have limited resources.

BOOTP/DHCP Relay Agent

The BootP protocol allows a device to solicit and receive configuration data and parameters from a suitable server. DHCP is an extension to BootP allowing additional setup parameters to be received from a network server upon system startup. Notably, while BootP stops operating once an IP address is obtained, DHCP service is an on-going process. For example, the IP address assigned to the system has a ‘lease time’ that may expire, and can be renewed on the fly.

Routing Information Protocol

The routing protocol used within an autonomous Internet system is referred to as an interior gateway protocol (IGP). RIP is an IGP that is designed to work with moderate-size networks.

Virtual Routing Redundancy Protocol

Virtual Routing Redundancy Protocol (VRRP) is used to provide hosts with redundant routers in the network topology without any need for the hosts to reconfigure or know that there are multiple routers.

Introduction 27

IPv6 Routing Features

IPv6 6 to 4 Auto Tunnels

Automatically formed IPv4 6 to 4 tunnels for carrying IPv6 traffic. The automatic tunnel IPv4 destination address is derived from the 6 to 4 IPv6 address of the tunnel nexthop. There is support the functionality of a 6 to 4 border router that connects a 6 to 4 site to a 6 to 4 domain. It sends/receives tunneled traffic from routers in a 6 to 4 domain that includes other 6 to 4 border routers and 6 to 4 relay routers.

DHCPv6

DHCPv6 incorporates the notion of the “stateless” server, where DHCPv6 is not used for IP address assignment to a client, rather it only provides other networking information such as DNS, Network Time Protocol (NTP), and/or Session Initiation Protocol (SIP) information.

OSPFv3

OSPFv3 provides a routing protocol for IPv6 networking. OSPFv3 is a new routing component based on the OSPF version 2 component. In dual stack IPv6, you can configure and use both OSPF and OSPFv3 components.

IPv6 Routes

Since IP4 and IPV6 can coexist on a network, the router on such a network needs to forward both traffic types. Given this coexistence, the PowerConnect M6220/M6348/M8024 maintains two routing tables, rto and rto6, which are both capable of forwarding over the same set of interfaces. IPV6 interfaces are managed in a manner similar to IPV4 interfaces.

IPv6

IPv6 Route Configuration Enhancements

The route configuration and route preference features have the following changes: You can configure static reject routes.

The default values for route preferences have changed as follows:

•OSPFv3 Intra — 110

•OSPFv3 Inter — 110

•OSPFv3 External — 110

OSPF Type-1 and OSPF Type-2 routes are now classified as OSPF External routes.

28 Introduction

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