Monitor Igmp And Dvmrp; Configuration Examples - Cabletron Systems SmartSwitch 8-slot User's Reference Manual

Monitor IGMP and DVMRP

You can monitor IGMP and DVMRP information on the SSR.
To display IGMP and DVMRP information, enter the following commands in the
Enable mode.
Show all interfaces running DVMRP.
Also shows the neighbors on each inter-
face.
Display DVMRP routing table.
Shows all the interfaces and member-
ship details running IGMP.
Shows all IGMP group memberships
on a port basis.
Show all IGMP timers.
Show information about multicasts reg-
istered by IGMP.
Show IGMP status on a VLAN.
Show all multicast Source, Group
entries.
Show all interfaces running multicast
protocols (IGMP, DVMRP).
Show all multicast routes.

Configuration Examples

The following is a sample SSR configuration for DVMRP and IGMP. Seven subnets
are created. IGMP is enabled on 4 IP interfaces. The IGMP query interval is set to 30
seconds. DVMRP is enabled on 5 IP interfaces. IGMP is not running on "downstream"
interfaces.
! Create VLANS.
!
vlan create upstream ip
vlan add ports et.5.3,et.5.4 to upstream
!
SSR User Reference Manual
Chapter 7: Multicast Routing Configuration Guide
dvmrp show interface
dvmrp show routes
igmp show interface
igmp show memberships
igmp show timers
l2-tables show igmp-mcast-registration
l2-tables show vlan-igmp-status
mulitcast show cache
multicast show interfaces
multicast show mroutes
7 - 7