HP ProCurve 2910al Switch

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HP ProCurve 2910al Switch

September 2009

W.14.03

Multicast and Routing Guide

Main Page

Table of Contents5
Multicast (Igmp)6
Product Documentation11
About Your Switch Manual Set11
Printed Publications11
Electronic Publications11
Software Feature Index12
Getting Started17
Contents17
Command Syntax Statements18
Command Syntax and Displayed Information18
Configuration and Operation Examples18
Protocol Acronyms18
Conventions18
Introduction18
Command Prompts19
Screen Simulations19
Keys20
Sources for more Information20
Menu Interface22
Online Help22
Getting Documentation from the Web22
Command Line Interface23
Web Browser Interface23
Need Only a Quick Start24
IP Addressing24
To Set up and Install the Switch in Your Network24
Physical Installation24
Contents25
Multimedia Traffic Control with IP Multicast (IGMP)25
Overview26
IGMP General Operation and Features27
IGMP Terms28
IGMP Operating Features29
Basic Operation29
Enhancements29
Number of IP Multicast Addresses Allowed30
Number of Multicast Filters Allowed30
CLI: Configuring and Displaying IGMP31
How IGMP Operates36
Operation with or Without IP Addressing37
Automatic Fast-Leave IGMP38
Forced Fast-Leave IGMP41
Configuring Delayed Group Flush42
IGMP Proxy Forwarding42
How IGMP Proxy Forwarding Works43
CLI Commands for IGMP Proxy Configuration45
VLAN Context Command46
IGMP Proxy Show Command47
Operating Notes for IGMP Proxy Forwarding48
Using the Switch as Querier50
Excluding Well-Known or Reserved Multicast Addresses from IP Multicast Filtering51
IP Routing Features53
Contents53
Overview of IP Routing56
IP Interfaces57
IP Tables and Caches57
ARP Cache Table58
IP Route Table58
IP Forwarding Cache59
IP Route Exchange Protocols60
IP Global Parameters for Routing Switches60
ARP Age Timer61
IP Interface Parameters for Routing Switches64
Configuring IP Parameters for Routing Switches65
Configuring IP Addresses65
Changing the Router ID65
Configuring ARP Parameters66
How ARP Works66
Enabling Proxy ARP68
Enabling Local Proxy ARP69
CLI Commands69
Configuring Forwarding Parameters70
Changing the TTL Threshold70
Enabling Forwarding of Directed Broadcasts70
Disabling Replies to Broadcast Ping Requests72
Configuring ICMP72
Disabling ICMP Messages72
Disabling ICMP Destination Unreachable Messages73
Disabling ICMP Redirects74
Configuring Static IP Routes74
Static Route Types74
Other Sources of Routes in the Routing Table75
Static IP Route Parameters75
Static Route States Follow VLAN States76
Configuring a Static IP Route76
Configuring the Default Route78
Configuring RIP79
Overview of RIP79
RIP Parameters and Defaults80
RIP Global Parameters80
RIP Interface Parameters80
Configuring RIP Parameters81
Enabling RIP81
Changing the Cost of Routes Learned on a VLAN Interface82
Enabling IP RIP on a VLAN82
Changing the RIP Type on a VLAN Interface82
Configuring RIP Redistribution83
Define RIP Redistribution Filters83
Modify Default Metric for Redistribution84
Enable RIP Route Redistribution84
Changing the Route Loop Prevention Method85
Displaying RIP Information85
Displaying General RIP Information86
Displaying RIP Interface Information88
Displaying RIP Peer Information89
Displaying RIP Redistribution Information91
Displaying RIP Redistribution Filter (Restrict) Information91
Configuring IRDP92
Enabling IRDP Globally93
Enabling IRDP on an Individual VLAN Interface93
Overview95
Configuring DHCP Relay95
Displaying IRDP Information95
DHCP Packet Forwarding96
Unicast Forwarding96
Broadcast Forwarding96
Prerequisites for DHCP Relay Operation96
Displaying the DHCP Relay Setting97
Verifying the DHCP Relay Configuration97
Operating Notes97
Configuring an IP Helper Address97
Enabling DHCP Relay97
Displaying DHCP Helper Addresses98
Displaying the Hop Count Setting99
Dhcp Option 82100
Dhcp Option100
DHCP Option 82101
Option 82 Server Support101
Terminology102
General DHCP Option 82 Requirements and Operation103
Option 82 Field Content104
Forwarding Policies106
Configuration Options for Managing DHCP Client Request106
Packets106
Multiple Option 82 Relay Agents in a Client Request Path107
Validation of Server Response Packets108
Multinetted Vlans109
Configuring Option 82110
Example of Option 82 Configuration112
Operating Notes113
UDP Broadcast Forwarding115
Overview115
Subnet Masking for UDP Forwarding Addresses116
Configuring and Enabling UDP Broadcast Forwarding117
Globally Enabling UDP Broadcast Forwarding117
Configuring UDP Broadcast Forwarding on Individual Vlans117
Displaying the Current IP Forward-Protocol Configuration119
Operating Notes for UDP Broadcast Forwarding120
Messages Related to UDP Broadcast Forwarding120

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