Brocade Communications Systems Upgrade Pef IPMC5000PEF IPMC5000PEF Manual Do Utilizador

Página de 230
An interface or router sends the queries and reports that include its IGMP version specified on it. It may
recognize a query or report that has a different version. For example, an interface running IGMP V2 can
recognize IGMP V3 packets, but cannot process them. Also, a router running IGMP V3 can recognize
and process IGMP V2 packet, but when that router sends queries to an IGMP V2 interface, the
downgraded version is supported, no the upgraded version.
If an interface continuously receives queries from routers that are running versions of IGMP that are
different from what is on the interface, the interface logs warning messages in the syslog every five
minutes. Reports sent by interfaces to routers that contain different versions of IGMP do not trigger
warning messages; however, you can see the versions of the packets using the show ip igmp traffic
command.
The version of IGMP can be specified globally, per interface (physical port or virtual routing interface),
and per physical port within a virtual routing interface. The IGMP version set on a physical port within a
virtual routing interface supersedes the version set on a physical or virtual routing interface. Likewise,
the version on a physical or virtual routing interface supersedes the version set globally on the device.
The sections below present how to set the version of IGMP.
Globally enabling the IGMP version
To globally identify the IGMP version on a Brocade device, enter the following command.
device(config)# ip igmp version 3
Syntax: [no] ip igmp version version-number
Enter 1, 2, or 3 for version-number . Version 2 is the default version.
Enabling the IGMP version per interface setting
To specify the IGMP version for a physical port, enter a command such as the following.
device(config)# interface eth 1/5
device(config-if-1/5)# ip igmp version 3
To specify the IGMP version for a virtual routing interface on a physical port, enter a command such as
the following.
device(config)# interface ve 3
device(config-vif-1) ip igmp version 3
Syntax: [no] ip igmp version version-number
Enter 1, 2, or 3 for version-number . Version 2 is the default version.
Enabling the IGMP version on a physical port within a virtual routing
interface
To specify the IGMP version recognized by a physical port that is a member of a virtual routing
interface, enter a command such as the following.
device(config)# interface ve 3
device(config-vif-3)# ip igmp version 2
device(config-vif-3)# ip igmp port-version 3 e1/3 to e1/7 e2/9
Globally enabling the IGMP version
FastIron Ethernet Switch IP Multicast Configuration Guide
149
53-1003085-02