Installation guide
Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
How to Configure EtherSwitch HWICs
40
Cisco IOS Release 12.3(8)T4
OL-6454-01
DETAILED STEPS
The following example shows how to enable PIM on an interface using the default mode
(sparse-dense-mode):
Router(config-if)# ip pim sparse-dense mode
Router(config-if)#
The following example shows how to enable PIM sparse mode on an interface:
Router(config-if)# ip pim sparse-mode
Router(config-if)#
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
State:* - Fast Switched, D - Distributed Fast Switched
H - Hardware Switching Enabled
Address Interface FS Mpackets In/Out
10.0.0.1 VLAN1 * 151/0
Router#
Step 2 Router# show ip mroute count
IP Multicast Statistics
5 routes using 2728 bytes of memory
4 groups, 0.25 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:224.9.9.9, Source count:1, Packets forwarded: 0, Packets received: 66
Source:10.0.0.2/32, Forwarding:0/0/0/0, Other:66/0/66
Group:224.10.10.10, Source count:0, Packets forwarded: 0, Packets received: 0
Group:224.0.1.39, Source count:0, Packets forwarded: 0, Packets received: 0
Group:224.0.1.40, Source count:0, Packets forwarded: 0, Packets received: 0
Router#
Command Purpose
Step 1
Router(config)# interface vlan
vlan-id
Selects the interface to be configured.
Step 2
Router(config-if)# ip pim {dense-mode |
sparse-mode | sparse-dense-mode}
Enables IP PIM on a Layer 3 interface.