3Com Switch 8800 Advanced Software V5 Configuration Guide

PIM Configuration Examples 593
PIM Configuration
Examples
PIM-DM Configuration
Example
Network requirements
■ Receivers receive VOD information through multicast. The receiver groups of
different organizations form stub networks, and one or more receiver hosts
exist in each stub network. The entire PIM domain operates in the dense mode.
■ As shown in Figure 183, Host A and Host C are multicast receivers in two stub
networks.
■ Switch D connects to the network that comprises the multicast source (Source)
through VLAN-interface 300.
■ Switch A connects to stub network N1 through VLAN-interface 100, and to
Switch D through VLAN-interface 103.
■ Switch B and Switch C connect to stub network N2 through their respective
VLAN-interface 200, and to Switch D through VLAN-interface 101 and
VLAN-interface 102 respectively.
■ IGMPv3 is required on Switch A, Switch B, Switch C, and hosts in N1 and N2.
Switch B is the IGMP querier on the multi-access subnet.
View the content of the PIM
multicast routing table
display pim routing-table [
group-address [ mask {
mask-length | mask } ] |
source-address [ mask {
mask-length | mask } ] |
incoming-interface [
interface-type
interface-number | register ] |
outgoing-interface {
include | exclude | match } {
interface-type
interface-number | register } |
mode mode-type | flags
flag-value | fsm ] *
Available in any view
View the RP information display pim rp-info [
group-address ]
Available in any view
Enable PIM debugging debugging pim { all | event
[ acl-number ] | routing-table
[ acl-number ] | neighbor [
acl-number ] [ receive | send
] | assert [ acl-number ] [
receive | send ] | rp [ receive
| send ] | join-prune [
acl-number ] [ receive | send
] | register [ acl-number ] |
msdp [ acl-number ] |
state-refresh [ acl-number ] [
receive | send ] }
Available in any view
Reset PIM control message
counters
reset pim control-message
counters [ interface
interface-type
interface-number ]
Available in user view
To do... Use the command... Remarks