Configuring Source Ip Address For Igmp Queries - HP A8800 Configuration Manual

Step
2. Enter IGMP snooping view.
3. Set the maximum response
delay for IGMP general
queries.
4. Set the IGMP last-member
query interval.
Configuring IGMP queries and responses in a VLAN
Step
1. Enter system view.
2. Enter VLAN view.
3. Set the interval for sending
IGMP general queries.
4. Set the maximum response
delay for IGMP general
queries.
5. Set the IGMP last-member
query interval.

Configuring source IP address for IGMP queries

If a router receives an IGMP query whose source IP address is 0.0.0.0, it does not enlist the port that
received the query as a dynamic router port. This might prevent multicast forwarding entries from being
correctly created at the data link layer and eventually cause multicast traffic forwarding to fail. To avoid
this problem, when a Layer 2 device acts as the IGMP snooping querier, HP recommends that you
configure a non-all-zero IP address as the source IP address of IGMP queries.
IMPORTANT:
The source address of IGMP query messages may affect IGMP querier selection within the subnet.
To configure source IP address for IGMP queries:
Step
1. Enter system view.
2. Enter VLAN view.
3. Configure the source address
for IGMP general queries.
4. Configure the source IP
address for IGMP
group-specific queries.
Command
igmp-snooping
max-response-time interval
last-member-query-interval
interval
Command
system-view
vlan vlan-id
igmp-snooping query-interval
interval
igmp-snooping
max-response-time interval
igmp-snooping
last-member-query-interval
interval
Command
system-view
vlan vlan-id
igmp-snooping general-query
source-ip { ip-address |
current-interface }
igmp-snooping special-query
source-ip { ip-address |
current-interface }
27
Remarks
N/A
10 seconds by default.
1 second by default.
Remarks
N/A
N/A
60 seconds by default.
10 seconds by default.
1 second by default.
Remarks
N/A
N/A
0.0.0.0 by default.
0.0.0.0 by default.