HP MSR2003 User Manual

29
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter Layer 2 Ethernet interface
view.
interface interface-type
interface-number
N/A
3. Set the maximum number of
multicast groups on a port.
igmp-snooping group-limit limit
[ vlan vlan-list ]
The default setting is
4294967295.
Enabling the multicast group replacement function
When the number of multicast groups on a Layer 2 device or a port exceeds the limit:
• If the multicast group replacement is enabled, the Layer 2 device or the port replaces an existing
multicast group with a newly joined multicast group.
• If the multicast group replacement is disabled, the Layer 2 device or the port discards IGMP reports
that are used for joining a new multicast group.
In some specific applications, such as channel switching, a newly joined multicast group must
automatically replace an existing multicast group. In this case, the function of multicast group
replacement must also be enabled so a user can switch from the current multicast group to a new group.
When you enable the multicast group replacement function, follow these guidelines:
• This configuration is effective on the multicast groups that a port dynamically joins. If you configure
the port as a static member port for a multicast group, this configuration is not effective on the
multicast group.
• You can enable the multicast group replacement function either for the current port in interface view
or globally for all ports in IGMP-snooping view. If the configurations are made in both interface
view and IGMP-snooping view, the configuration made in interface view takes priority.
To enable the multicast group replacement function globally:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter IGMP-snooping view.
igmp-snooping N/A
3. Enable the multicast group
replacement function globally.
overflow-replace [ vlan vlan-list ]
By default, the multicast group
replacement function is disabled.
To enable the multicast group replacement function on a port:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter Layer 2 Ethernet interface
view.
interface interface-type
interface-number
N/A
3. Enable multicast group
replacement function on a port.
igmp-snooping overflow-replace
[ vlan vlan-list ]
By default, the multicast group
replacement function is disabled.

HP MSR2003 Specifications

General

Brand	HP
Model	MSR2003
Category	Network Router
Language	English