Disabling Multicast Router Ports; Disabling Multicast Group Entries; Filtering Igmp Traffic - Cisco WS-C2948G-GE-TX Configuration Manual

Chapter 15 Configuring Multicast Services
VLAN
----
1
1
1
1
Total Number of Entries = 4
Console> (enable)

Disabling Multicast Router Ports

To disable manually configured multicast router ports, perform one of these tasks in privileged mode:
Task
Disable a specific manually configured multicast router port.
Disable all manually configured multicast router ports.
This example shows how to disable a manually configured multicast router port entry:
Console> (enable) clear multicast router 2/12
Port 2/12 cleared from multicast router port list.
Console> (enable)

Disabling Multicast Group Entries

To disable manually configured multicast group entries, perform this task in privileged mode:
Task
Disable a multicast group entry from the CAM
table.
This example shows how to disable a multicast group entry from the CAM table:
Console> (enable) clear cam 01-11-22-33-44-55 1
CAM entry cleared.
Console> (enable)

Filtering IGMP Traffic

IGMP filtering allows an administrator to configure IP multicast group profiles consisting of one or more
ranges of IP multicast addresses. The administrator associates these profiles with a filtering and
monitoring action. These actions apply to IGMP packets, are configured on a per-switch-port basis, and
are available to all VLANs that are associated with the physical port.
If a port is set to permit, only matching IPs are forwarded; all others are dropped. If a filtering action
permits a particular IGMP packet, only that packet is forwarded for processing, and all others are
dropped.
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Software Configuration Guide—Release 8.2GLX
78-15908-01
Dest MAC/Route Des Destination Ports or VCs / [Protocol Type]
------------------ ----------------------------------------------------
01-00-11-22-33-44* 2/6-12
01-11-22-33-44-55* 2/6-12
01-22-33-44-55-66* 2/6-12
01-33-44-55-66-77* 2/6-12
Command
clear multicast router
mod_num/port_num
clear multicast router all
Command
clear cam mac_addr [vlan]
Filtering IGMP Traffic
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