ProCurve Series 2300 and 2500 Switches Release Notes

226
Enhancements in Release F.02.02
Operation and Enhancements for Multimedia Traffic Control (IGMP)
CLI: Configuring Per-Port Forced Fast-Leave IGMP
In the factory-default configuration, Forced Fast-Leave is disabled for all ports on the switch. To
enable (or disable) this feature on individual ports, use the switch’s MIB commands, as shown below.
Syntax: setmib hpSwitchIgmpPortForcedLeaveState.1.<port-number> -i < 1 | 2 >
or
setmib 1.3.6.1.4.1.11.2.14.11.5.1.7.1.15.3.1.5.1.<port-number> -i < 1 | 2 >
where:
1 = Forced Fast-Leave enabled
2 = Forced Fast-Leave disabled
For example, to enable Forced Fast-Leave on ports 7 and 8:
Figure 116. Example of Changing the Forced Fast-Leave Configuration on Ports 7 and 8
Querier Operation
The function of the IGMP Querier is to poll other IGMP-enabled devices in an IGMP-enabled VLAN
to elicit group membership information. The switch performs this function if there is no other device
in the VLAN, such as a multicast router, to act as Querier. Although the switch automatically ceases
Querier operation in an IGMP-enabled VLAN if it detects another Querier on the VLAN, you can also
use a CLI command to disable the Querier function for that VLAN. For example, to disable the Querier
function on VLAN 1 in a Series 2500 switch:
HP2512(config)# no vlan 1 ip igmp querier Disables Querier function on VLAN 1.
HP2512(vlan-1)# no ip igmp querier Disables Querier function on VLAN 1
from within the VLAN 1 context.
Note
A Querier is required for proper IGMP operation. For this reason, if you disable the Querier function
on a Series 2500 switch, ensure that there is an IGMP Querier (and, preferably, a backup Querier)
available on the same VLAN.
Command
Verification