Configuring Multicast Router Ports And Group Entries; Specifying Multicast Router Ports; Configuring Multicast Groups - Cisco WS-C4003 - Catalyst 4000 Chassis Switch Software Configuration Manual

Configuring Multicast Router Ports and Group Entries

Configuring Multicast Router Ports and Group Entries
These sections describe how to manually specify multicast router ports and configure multicast group
entries:
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•
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Specifying Multicast Router Ports

When you enable CGMP or GMRP, the switch automatically learns to which ports a multicast router is
connected. However, if desired, you can manually specify multicast router ports.
To statically define multicast router ports, perform this task in privileged mode:
Task
Step 1 Manually specify a multicast router port.
Step 2
Verify the configuration.
This example shows how to define a multicast router port manually and verify the configuration (the
asterisk [*] next to the multicast router on port 3/1 indicates that the entry was configured manually):
Console> (enable) set multicast router 3/1
Port 3/1 added to multicast router port list.
Console> (enable) show multicast router
CGMP enabled
IGMP disabled
Port
---------
2/1
2/2
3/1
Total Number of Entries = 4
'*' - Configured
Console> (enable)

Configuring Multicast Groups

To configure a multicast group statically, perform this task in privileged mode:
Task
Step 1
Add one or more multicast MAC addresses to the
CAM table.
Step 2
Verify the multicast group configuration.
Software Configuration Guide—Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4
15-16
Specifying Multicast Router Ports, page 15-16
Configuring Multicast Groups, page 15-16
Clearing Multicast Router Ports, page 15-17
Clearing Multicast Group Entries, page 15-17
Vlan
----------------
99
255
* 1
Chapter 15 Configuring Multicast Services
Command
set multicast router mod_num/port_num
show multicast router [mod_num/port_num]
[vlan_id]
Command
set cam {static | permanent} multicast_mac
mod_num/port_num [vlan]
show multicast group [mac_addr] [vlan_id]
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