15-17
Multimedia Traffic Control with IP Multicast (IGMP)
How IGMP Operates
Multimedia Traffic Control
with IP Multicast (IGMP)
Figure 15-5. Example Listing the Forced Fast-Leave State for a Single Port on the
Default VLAN
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 setmib command, as shown below.
Configuring Per-Port Forced Fast-Leave IGMP on Ports. This proce-
dure enables or disables Forced Fast-Leave on ports in a given VLAN. (See the
"Note on VLAN Numbers" on page 15-15.)
Syntax:
setmib hpSwitchIgmpPortForcedLeaveState.<vlan number><.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.<vlan number><.port number> -i
<1 | 2>
where:
1 = Forced Fast-Leave enabled
2 = Forced Fast-Leave disabled
For example, suppose that your switch has a six-port gigabit module in
slot A, and port C1 is a member of the default VLAN. In this case, the port
number is "49" (In the MIB, slot A = ports 1-24; slot B = ports 25-48; slot C
= ports 49-72, and so on.) To enable Forced Fast-Leave on C1 (49), you
would execute the following command and see the indicated result :
The 2 shows that Fast Forced-Leave
is disabled on port 7.
The 6 specifies port A6.
The 1 indicates the default VLAN.
(See the "Note on VLAN Numbers"
on page 15-15.)