MES3000 Ethernet switch series 127
no switchport access
multicast-tv vlan
Disable forwarding of IGMP queries from client Vlan to Multicast
Vlan and multicast traffic to client Vlan for the interface in 'access'
mode.
switchport trunk multicast-tv
vlan vlan_id [tagged]
Enable forwarding of IGMP queries from VLAN, that the port
belongs to, to Multicast VLAN for the interface in 'trunk' mode.
- tagged—defines whether the multicast traffic should be
forwarded to the port as tagged in Multicast VLAN.
no switchport trunk
multicasttv vlan
Disable forwarding of IGMP queries to Multicast VLAN; the port is
excluded from multicast groups in Multicast VLAN.
EXEC mode commands
All commands are available to the privileged user only.
Command line request in EXEC mode appears as follows:
console#
Table 5.131 —EXEC mode commands
show ip igmp snooping
mrouter [interface vlan_id]
Show information on learnt multicast routers in the selected VLAN
group.
show ip igmp snooping
interface vlan_id
Show IGMP Snooping information for the current interface.
show ip igmp snooping groups
[vlan vlan_id]
[ipmulticastaddress
ip_multicast_address]
[ipaddress ip_address]
Show information on learnt multicast groups.
show ip igmp snooping cpe
vlans [vlan vlan_id]
Show table of matches for subscriber VLAN equipment and TV
VLAN.
Example execution of commands
Enable IGMP snooping on the switch. Enable automatic port identification with connected multicast
routers for VLAN 6. Set the IGMP query interval—100 seconds. Increase the stability value to 4. Set
the maximum query response time—15 seconds.
console# configure
console (config)# ip igmp snooping
console (config-if)# ip igmp snooping vlan 6 mrouter learn pim-dvmrp
console (config)# interface vlan 6
console (config-if)# ip igmp snooping query-interval 100
console (config-if)# ip igmp robustness 4
console (config-if)# ip igmp query-max-response-time 15
5.17.3 MLD Snooping—multicast traffic control protocol for IPv6 networks
MLD Snooping is a message multicasting mechanism, that allows to minimize the amount of
multicast traffic in IPv6 networks.
Global configuration mode commands
Command line request in global configuration mode appears as follows:
console(config)#