Pim-Dm6 Troubleshooting; Introduction To Pim-Sm6 - Planet XGS3-42000R User Manual

XGS 3-42000R(config-if-Vlan1)#exit
XGS 3-42000R(config)#interface vlan2
XGS 3-42000R(config-if-Vlan2)#ipv6 address 2000:12:1:1:: 1/64
XGS 3-42000R(config-if-Vlan2)#ipv6 pim dense-mode
(2) Configure SwitchB:
XGS 3-42000R(config)#ip pim multicast-routing
XGS 3-42000R(config)#interface vlan 1
XGS 3-42000R(config-if-Vlan1)#ipv6 address 2000:12:1:1::2/64
XGS 3-42000R(config-if-Vlan1)#ipv6 pim dense-mode
XGS 3-42000R(config-if-Vlan1)#exit
XGS 3-42000R(config)#interface vlan 2
XGS 3-42000R(config-if-Vlan2)#ipv6 address 2000:20:1:1::1/64
XGS 3-42000R(config-if-Vlan2)#ipv6 pim dense-mode

44.1.4 PIM-DM6 Troubleshooting

When configuring and using PIM-DM protocol, PIM-DM protocol may fail to work normally due to physical
connections, incorrect configuration and so on. So, users shall note the following points:

Assure the physical connection is correct.

Assure the Protocol of Interface and Link is UP (use show interface command);

Assure PIM Prot ocol is turned on in Global Mode (use ipv6 pim multicast-routing command )

Start PIM-DM Prot ocol on the int erface (use ipv6 pim dense-mode command)
Unicast rout e shall be used to carry out RPF ex amination for multicast prot ocol. So the correctness of unicast
route shall be guaranteed above all. If all attempts fail to solve t he problems on P IM-DM, then use debug
commands such as debug ipv6 pim, copy DEBUG information in 3 minutes and send to Technology Service
Cent er.
44.2 PIM-SM6

44.2.1 Introduction to PIM-SM6

PIM-SM6（Protocol Independent Multicast, Spars e Mode）is the IP v6 version of Protocol Independent
Multicast Sparse Mode. It is a multicast routing protocol in sparse mode and mainly used in large network with
group members distributed relatively sparse and wide. It is no difference from the IP v4 version PIM-SM
except the addresses it uses are IP v6 addresses. Thus we don't differentiat e between PIM -SM and PIM-SM6
in this chapter. All PIM-SM in the text without specific explanation is IP v6 version PIM -SM. Unlike the
Flooding-Prune of Dense Mode, PIM-SM Protocol assumes no host needs receiving multicast data packets.
PIM-SM router forwards multicast data packets to a host only on definite request.
By setting RP (Rendez vous Point) and BSR (Bootstrap Rout er), PIM-SM announce multicast packet to all
PIM-SM routers and establish, using Join/Prune message of routers, RP T (RP-root ed shared tree) based on
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