Disabling A Port From Becoming A Dynamic Router Port - HP MSR2003 Configuration Manual

You can enable IGMP snooping fast-leave processing either for the current port in interface view or
•
globally for all ports in IGMP-snooping view. If the configurations are made both in interface view
and IGMP-snooping view, the configuration made in interface view takes priority.
Enabling IGMP snooping fast-leave processing globally
Step
1. Enter system view.
2. Enter IGMP-snooping view.
3. Enable
fast-leave processing globally.
Enabling IGMP snooping fast-leave processing on a port
Step
1. Enter system view.
2. Enter Layer 2 Ethernet interface
view.
3. Enable
fast-leave processing on the
port.

Disabling a port from becoming a dynamic router port

The following problems might exist in a multicast access network:
After receiving an IGMP general query or a PIM hello message from a connected host, a router port
•
becomes a dynamic router port. Before its timer expires, this dynamic router port receives all
multicast packets within the VLAN where the port belongs and forwards them to the host. It
adversely affects multicast traffic reception of the host.
The IGMP general query or PIM hello message that the host sends affects the multicast routing
•
protocol state on Layer 3 devices, such as the IGMP querier or DR election. This might further cause
network interruption.
To solve these problems and to improve network security and the control over multicast users, you can
disable that router port from becoming a dynamic router port.
To disable a port from becoming a dynamic router port:
Step
1. Enter system view.
2. Enter Layer 2 Ethernet interface
view.
3. Disable
becoming a dynamic router
port.
Command
system-view
igmp-snooping
IGMP snooping
fast-leave [ vlan vlan-list ]
Command
system-view
interface interface-type
interface-number
IGMP snooping
igmp-snooping fast-leave [ vlan
vlan-list ]
Command
system-view
interface interface-type
interface-number
the port from
igmp-snooping router-port-deny
[ vlan vlan-list ]
22
Remarks
N/A
N/A
By default, fast-leave processing is
disabled.
Remarks
N/A
N/A
By default, fast-leave processing is
disabled.
Remarks
N/A
N/A
By default, a port can become a
dynamic router port.
This configuration does not affect
the static router port configuration.