Cisco NM-8B-U User Guide - Page 100
Verifying IP Multicast Layer 3 Hardware Switching Summary, show interface statistics
UPC - 074632001001
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Configuration Tasks 16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Verifying IP Multicast Layer 3 Hardware Switching Summary Note The show interface statistics command does not verify hardware-switched packets, only packets switched by software. 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. Use the following show commands to verify IP multicast Layer 3 switching information for an IP PIM Layer 3 interface: Step 1 Router# show ip pim interface count Step 2 State:* - Fast Switched, D - Distributed Fast Switched H - Hardware Switching Enabled Address Interface FS Mpackets In/Out 10.15.1.20 GigabitEthernet4/8 * H 952/4237130770 10.20.1.7 GigabitEthernet4/9 * H 1385673757/34 10.25.1.7 GigabitEthernet4/10* 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 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 negative counter means that the outgoing interface list of the corresponding entry is NULL, and this indicates that this flow is still active. Step 3 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 ICMP unreachables are never sent ICMP mask replies are never sent IP fast switching is enabled 100 Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ