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Chapter 3 General Management of the Switch 3-59
MIB Variables Associated With IGMP Parameters
3.3.2.2 Specifying Interfaces Connected to Multicast Routers
Multicast routers use the information obtained from IGMP Query, along with a
multicast routing protocol such as DVMRP, to support IP multicasting across the
Internet. These routers may be dynamically discovered by the switch or statically
assigned to an interface on the switch.
Depending on your network connections, IGMP snooping may not always be able to
locate the IGMP querier. Therefore, if the IGMP querier is a known multicast router/
switch connected over the network to an interface (port or aggregated link) on your
switch, you can manually configure the interface (and a specified VLAN) to join all
the current multicast groups supported by the connected router. This can ensure that
multicast traffic is passed on to all the appropriate interfaces within the switch.
TABLE 3-15 MIB Variables Associated With IGMP Parameters
Field Name MIB Variable Access Value Range Default Value
Snooping
Status
sun...
igmpSnoopMgt.
igmpSnoopStatus
Read/write enabled (1),
disabled (2)
enabled
Snooping
Querier
sun...
igmpSnoopMgt.
igmpSnoopQuerier
Read/write enabled (1),
disabled (2)
enabled
Snooping
Query Count
sun...
igmpSnoopMgt.
igmpSnoopQueryCount
Read/write Integer (2-10) 2
Snooping
Query Interval
sun...
igmpSnoopMgt.
igmpSnoop-
QueryInterval
Read/write Integer (60-125)
seconds
125
Snooping
Query Max
Response Time
sun...
igmpSnoopMgt.
igmpSnoopQuery-
MaxResponseTime
Read/write Integer (5-25)
seconds
10
Snooping
Router Port
Expire Time
sun...
igmpSnoopMgt.
igmpSnoopRouterPort
-ExpireTime
Read/write Integer (300-500)
seconds
300
Snooping
Version
sun...
igmpSnoopMgt.
igmpSnoopVersion
Read/write Integer (1-2) 2