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Chapter 3

IP Multicast in a Wireless LAN

IP Multicast WLAN Configuration

Group: 239.192.248.1, Source: 10.5.10.22

(low-rate) (IPTV)

Rate: 23 pps/100 kbps(1sec), 94 kbps(last 30 secs), 115 kbps(life avg)

Step 4 Step 5

The IP/TV viewer should be displaying the video content on the screen. On the PC, stop the IP/TV program that is running for the 239.192.248.1 group. Enable the debug for the high-rate stream:

L3-SWITCH#debug ip igmp 239.255.0.1

Step 6

On the PC, open the IP/TV viewer and request the program associated with the 239.255.0.1 group.

The following ACL console message should appear on L3-SWITCH showing that the traffic was denied (number of packets may vary):

5w1d: %SEC-6-IPACCESSLOGS: list IPMC-WLAN denied 239.255.0.1 1 packet

Step 7

The following debug entry should appear for the discarded IGMP join attempt:

5w1d: IGMP(0): Discard report at boundary (Vlan200) for 239.255.0.1

There should be no multicast state active for the 239.255.0.1.

Test 2: WLAN with P2P Bridges

To test the WLAN with P2P bridges deployment, do the following:

Step 1

Ensure that there are no active multicast streams.

L3-SWITCH#show ip mroute active Active IP Multicast Sources - sending >= 4 kbps L3-SWITCH#

ROUTER#show ip mroute active Active IP Multicast Sources - sending >= 4 kbps ROUTER#

Step 2

On the PC, open the IP/TV viewer and request the program associated with the 239.192.248.1 group. As an alternative to using the IP/TV viewer, run the ip igmp join-group 239.192.248.1 command on the Fast Ethernet 0/1 interface on ROUTER.

The following ACL console message should appear on ROUTER showing that the traffic was permitted (number of packets may vary):

1w1d: %SEC-6-IPACCESSLOGS: list IPMC-BRIDGE permitted 239.192.248.1 5 packets

Step 3

Run the show ip mroute active command on L3-SWITCH and ROUTER.

ROUTER#show ip mroute active Active IP Multicast Sources - sending >= 4 kbps

Group: 239.192.248.1, Source: 10.5.10.22

(low-rate) (IPTV)

Rate: 23 pps/100 kbps(1sec), 91 kbps(last 20 secs), 123 kbps(life avg)

Step 4

The IP/TV viewer should be displaying the video content on the screen. On the PC, stop the IP/TV program that is running for the 239.192.248.1 group.

Cisco AVVID Network Infrastructure IP Multicast Design

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