Deployment Guide

DHCP Packet Format and Options................................................................................................................................76
Option 82...........................................................................................................................................................................77
Releasing and Renewing DHCP-based IP Addresses.................................................................................................. 78
Viewing DHCP Statistics and Lease Information......................................................................................................... 78
7 FIP Snooping............................................................................................................................................... 80
Supported Modes............................................................................................................................................................80
Fibre Channel over Ethernet.......................................................................................................................................... 80
Ensuring Robustness in a Converged Ethernet Network........................................................................................... 80
FIP Snooping on Ethernet Bridges................................................................................................................................ 82
How FIP Snooping is Implemented................................................................................................................................84
FIP Snooping on VLANs............................................................................................................................................84
FC-MAP Value............................................................................................................................................................84
Bridge-to-FCF Links.................................................................................................................................................. 84
Impact on other Software Features........................................................................................................................ 84
FIP Snooping Prerequisites.......................................................................................................................................84
FIP Snooping Restrictions........................................................................................................................................ 85
Conguring FIP Snooping...............................................................................................................................................85
Displaying FIP Snooping Information.............................................................................................................................86
FIP Snooping Example..................................................................................................................................................... 91
Debugging FIP Snooping.................................................................................................................................................92
8 Internet Group Management Protocol (IGMP).............................................................................................93
IGMP Overview................................................................................................................................................................93
IGMP Version 2................................................................................................................................................................ 93
Joining a Multicast Group......................................................................................................................................... 94
Leaving a Multicast Group........................................................................................................................................ 94
IGMP Version 3................................................................................................................................................................ 94
Joining and Filtering Groups and Sources.....................................................................................................................95
Leaving and Staying in Groups.......................................................................................................................................96
IGMP Snooping................................................................................................................................................................ 97
How IGMP Snooping is Implemented on an Aggregator.............................................................................................97
Disabling Multicast Flooding........................................................................................................................................... 97
Displaying IGMP Information.......................................................................................................................................... 97
9 Interfaces...................................................................................................................................................100
Basic Interface Conguration....................................................................................................................................... 100
Advanced Interface Conguration............................................................................................................................... 100
Interface Auto-Conguration.........................................................................................................................................101
Interface Types................................................................................................................................................................ 101
Viewing Interface Information.......................................................................................................................................102
Disabling and Re-enabling a Physical Interface...........................................................................................................103
Layer 2 Mode.................................................................................................................................................................. 103
Management Interfaces................................................................................................................................................ 104
Accessing an Aggregator.........................................................................................................................................104
Conguring a Management Interface....................................................................................................................104
Contents
5