Using The Cli To View Multicast Groups; Using The Cli To View An Access Point's Multicast Client Table - Cisco 2100 Series Configuration Manual

Chapter 4 Configuring Controller SettingsWireless Device Access

Using the CLI to View Multicast Groups

Use these commands to view multicast groups using the controller CLI.
•
•

Using the CLI to View an Access Point's Multicast Client Table

To help troubleshoot roaming events, you can view an access point's multicast client table from the
controller by performing a remote debug of the access point. Follow these steps to do so using the
controller CLI:
To initiate a remote debug of the access point, enter this command:
Step 1
debug ap enable Cisco_AP
To see all of the MGIDs on the access point and the number of clients per WLAN, enter this command:
Step 2
debug ap command "show capwap mcast mgid all" Cisco_AP
To see all of the clients per MGID on the access point and the number of clients per WLAN, enter this
Step 3
command:
debug ap command "show capwap mcast mgid id mgid_value" Cisco_AP
OL-17037-01
To see all the multicast groups and their corresponding MGIDs, enter this command:
show network multicast mgid summary
Information similar to the following appears:
Layer2 MGID Mapping:
-------------------
InterfaceName
-------------------------------- ------
management
test
wired
Layer3 MGID Mapping:
-------------------
Number of Layer3 MGIDs........................... 1
Group address Vlan
--------------- ----
239.255.255.250 0
To see all the clients joined to the multicast group in a specific MGID, enter this command:
show network multicast mgid detail mgid_value
where the mgid_value parameter is a number between 550 and 4095.
Information similar to the following appears:
Mgid........................................ 550
Multicast Group Address..................... 239.255.255.250
Vlan........................................ 0
Rx Packet Count............................. 807399588
No of clients............................... 1
Client List.................................
Client MAC
00:13:02:23:82:ad
vlanId MGID
----
0 0
0 9
20 8
MGID
----
550
Expire Time (mm:ss)
0:20
Cisco Wireless LAN Controller Configuration Guide
Configuring Multicast Mode
4-39