Software Version sb275a05 5
Version sb275a05
C613-10464-00 Rev H
Enhancements
CR Module Level Description
CR00013351 IGMP
snooping,
EPSR, RSTP
-A new feature has been added to IGMP snooping, to minimise loss of
multicast data after a topology change on networks that use EPSR or
spanning tree (STP, RSTP, or MSTP) for loop protection and IGMP
snooping.
For more information, see “IGMP Snooping Query Solicitation
(CR00013351)” on page 19.
CR00014222 IGMP
snooping,
Switch,
VLAN
-IGMP snooping learns which ports have routers attached to them, so it
can forward relevant IGMP messages out those ports. By default,
snooping identifies router ports by looking for ports that receive specific
multicast packets (such as IGMP queries, PIM messages, OSPF messages,
and RIP messages).
In some network configurations, this learning process cannot identify all
router ports. For such networks, this enhancement enables you to
statically configure particular ports as multicast router ports.
To specify the static router ports, use the new command:
add igmpsnooping vlan={vlan-name|1..4094} routerport=port-list
To stop ports from being static router ports, use the new command:
delete igmpsnooping vlan={vlan-name|1..4094} routerport=port-list
To list the static router ports, use the existing command:
show igmpsnooping
and check the new “Static Router Ports” field.