HP MSR2003 User Manual

21
Ste
p
Command Remarks
4. Configure the port as a static
router port.
igmp-snooping static-router-port
vlan vlan-id
By default, a port is not a static
router port.
Configuring a port as a simulated member host
Generally, a host that runs IGMP can respond to IGMP queries. If a host fails to respond, the multicast
router might consider that no member of this multicast group exists on the subnet, and removes the
corresponding forwarding path.
To avoid this situation, you can configure the port as a simulated member host for a multicast group.
When the simulated member host receives an IGMP query, it replies with an IGMP report. Therefore, the
Layer 2 device can continue receiving multicast data.
When a port is configured as a simulated member host, the Layer 2 device is equivalent to an
independent host in the following ways:
• It sends an unsolicited IGMP report through the port and responds to IGMP general queries with
IGMP reports through the port.
• It sends an IGMP leave message through the port when you remove the simulated joining
configuration.
To configure a port as a simulated member host:
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. Configure the port as a simulated
member host.
igmp-snooping host-join
group-address [ source-ip
source-address ] vlan vlan-id
By default, the port is not a
simulated member host.
NOTE:
Unlike a static member port, a port configured as a simulated member host ages out like a dynamic
member port.
Enabling IGMP snooping fast-leave processing
The IGMP snooping fast-leave processing feature enables the Layer 2 device to process IGMP leave
messages quickly. With this feature, the Layer 2 device immediately removes that port that receives an
IGMP leave message from the forwarding entry for the multicast group specified in the message. Then,
when the Layer 2 device receives IGMP group-specific queries for that multicast group, it does not
forward them to that port.
When you enable the IGMP snooping fast-leave processing feature, follow these guidelines:
• In a VLAN, you can enable IGMP snooping fast-leave processing on ports that have only one
receiver host attached. If a port has multiple hosts attached, do not enable IGMP snooping
fast-leave processing on this port. Otherwise, other receiver hosts attached to this port in the same
multicast group cannot receive the multicast data destined to this group.

HP MSR2003 Specifications

General

Brand	HP
Model	MSR2003
Category	Network Router
Language	English