15-12
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide
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Release 8.1
78-15486-01
Chapter 15 Configuring Multicast Services
Configuring GMRP
Configuring GMRP Registration
The following sections describe how to configure GMRP registration modes on switch ports.
Setting Normal Registration Mode
Configuring a port in normal registration mode allows dynamic GMRP multicast registration and
deregistration on the port. Normal mode is the default on all switch ports.
To configure GMRP normal registration on a port, perform this task in privileged mode:
This example shows how to configure normal registration on port 2/10:
Console> (enable) set gmrp registration normal 2/10
GMRP Registration is set normal on port 2/10.
Console> (enable)
Setting Fixed Registration Mode
When you configure a port in fixed registration mode, all multicast groups that are currently registered
on all ports are registered on the port, but the port ignores any subsequent registrations or deregistrations
on other ports. A port in fixed registration mode continues to register multicast groups that are specific
to the port. You must return the port to normal registration mode to deregister multicast groups on the
port.
To configure GMRP fixed registration on a port, perform this task in privileged mode:
This example shows how to configure fixed registration on port 2/10 and verify the configuration:
Console> (enable) set gmrp registration fixed 2/10
GMRP Registration is set fixed on port 2/10.
Console> (enable) show gmrp configuration
Global GMRP Configuration:
GMRP Feature is currently enabled on this switch.
GMRP Timers (milliseconds):
Join = 200
Leave = 600
LeaveAll = 10000
Port based GMRP Configuration:
GMRP-Status Registration ForwardAll Port(s)
----------- ------------ ---------- --------------------------------------------
Task
Command
Step 1
Configure normal registration on a port.
set gmrp registration normal mod_num/port_num
Step 2
Verify the configuration.
show gmrp configuration
Task
Command
Step 1
Configure fixed registration on a port.
set gmrp registration fixed mod_num/port_num
Step 2
Verify the configuration.
show gmrp configuration
