Appendix C Switch Port Functionality

IP Multicast Layer 3 Switching

Verifying IP Multicast Layer 3 Hardware Switching Summary

The show ip pim interface count command verifies the IP multicast Layer 3 switching enable state on IP PIM interfaces and the number of packets received and sent on the interface.

Note The show interface statistics command does not verify hardware-switched packets, only packets switched by software.

Use the following show commands to verify IP multicast Layer 3 switching information for an IP PIM Layer 3 interface, as illustrated below:

Step 1 Enter the show ip pim interface count command.

Router# show ip pim interface count

State:*

- Fast Switched, D

-

Distributed Fast Switched

H

- Hardware Switching

Enabled

Address

Interface

 

FS Mpackets In/Out

10.15.1.20GigabitEthernet4/8 * H 952/4237130770

10.20.1.7GigabitEthernet4/9 * H 1385673757/34

10.25.1.7GigabitEthernet4/10* H 0/34

 

10.11.1.30

FastEthernet6/26

*

H 0/0

 

10.37.1.1

FastEthernet6/37

*

H 0/0

 

1.22.33.44

FastEthernet6/47

*

H 514/68

Step 2

Enter the show ip mroute count command.

 

Router# show ip mroute count

 

 

 

IP Multicast Statistics

 

 

 

56 routes using 28552 bytes of memory

 

 

13 groups, 3.30 average sources per

group

 

Forwarding Counts:Pkt Count/Pkts per second/Avg Pkt Size/Kilobits per second

 

Other counts:Total/RPF failed/Other

drops(OIF-null, rate-limit etc)

Group:224.2.136.89, Source count:1, Group pkt count:29051

Source:132.206.72.28/32, Forwarding:29051/-278/1186/0, Other:85724/8/56665

Router#

Note The -tive counter means that the outgoing interface list of the corresponding entry is NULL, and this indicates that this flow is still active.

Step 3 Enter the show ip interface vlan 10 command.

Router# show ip interface vlan 10

Vlan10 is up, line protocol is up

Internet address is 10.0.0.6/8

Broadcast address is 255.255.255.255

Address determined by non-volatile memory

MTU is 1500 bytes

Helper address is not set

Directed broadcast forwarding is disabled

Multicast reserved groups joined: 224.0.0.1 224.0.0.2 224.0.0.13 224.0.0.10

Outgoing access list is not set

Inbound access list is not set

Proxy ARP is enabled

Security level is default

 

 

Split horizon is enabled

 

 

ICMP redirects are always sent

 

 

Cisco 3200 Series Router Hardware Reference

 

 

 

 

 

 

 

 

 

 

 

 

 

OL-5816-10

 

 

C-11

 

 

 

 

 

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Cisco Systems 3200 manual Verifying IP Multicast Layer 3 Hardware Switching Summary, Router# show ip mroute count

3200 specifications

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