4 pim-ssm6 troubleshooting, 5 ipv6 dcscm, 1 introduction to ipv6 dcscm – PLANET XGS3-24040 User Manual

Page 422: Dcscm

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Chapter 44 IPv6 Multicast Protocol

44-20

Switch(config)#interface vlan 2

Switch(Config-If-Vlan2)# ipv6 address 2000:24:1:1::4/64

Switch(Config-If-Vlan2)# ipv6 pim sparse-mode

Switch(Config-If-Vlan2)#exit

Switch(config)#interface vlan 3

Switch(Config-If-Vlan3)# ipv6 address 2000:40:1:1::1/64

Switch(Config-If-Vlan3)# ipv6 pim sparse-mode

Switch(Config-If-Vlan3)#exit

Switch(config)#ipv6 access-list 500 permit ff1e::1/64

Switch(config)#ip pim ssm range 500

44.4.4 PIM-SSM6 Troubleshooting

When configuring the PIM-SSM6 protocol, it may fail to work because of the failure of physical connection or

the mis-configurations. To debug these errors, attention should be paid to the following lists.

Make sure the physical links are connected correctly.

Make sure the state of the data link layer has become UP. (Use show interface command).

Make sure PIM6 is enabled in global configuration mode (Refer to the command ipv6 pim

multicast-routing).

Make sure PIM-SM6 is configured on the interface (Refer to the command ipv6 pim sparse-mode)

Make sure SSM6 is configure in global configuration mode.

The multicast protocol uses the unicast routing to make RPF check. Hence, single-cast routing should

be verified firstly.

If problems could not be fixed with the above check list, please enable the command of debug ipv6 pim

event and debug ipv6 pim packet, and save the debug information for 3 minutes, and send if to Technology

Service Center.

44.5 IPv6 DCSCM

44.5.1 Introduction to IPv6 DCSCM

The technology of IPv6 DCSCM (Destination Control and Source Control Multicast) includes three aspects:

the multicast source control, the multicast user control and the service-priority-oriented policy multicast.

IPv6 DCSCM Controllable Multicast technology proceeds as the following way:

1. If source controlled multicast is configured on the edge switches, only the multicast data of the

specified group from the specified source can pass.

2. The RP switches which are the core of PIM-SM will directly send REGISTER_STOP as response to

the REGISTER messages not from the specified source and specified group, and no entry is allowed to

be created. (This task is implemented in the PIM-SM module).

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