3 ipv6 dcscm typical examples – PLANET XGS3-24040 User Manual

Page 426

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Chapter 44 IPv6 Multicast Protocol

44-24

44.5.3 IPv6 DCSCM Typical Examples

1. Source control

In order to prevent an edge switch sends multicast data at will, we configure on the edge switch that only the

switch whose port is Ethernet1/5 can send multicast data, and the group of data should be ff1e::1. The uplink

port Ethernet1/25 can forward multicast data without being restricted, so we can configure as follows.

Switch(config)#ipv6 access-list 8000 permit any-source ff1e::1

Switch(config)#ipv6 access-list 8001 permit any any

Switch(config)#ipv6 multicast source-control

Switch(config)#interface Ethernet1/5

Switch(Config-If-Ethernet1/5)#ipv6 multicast source-control access-group 8000

Switch(config)#interface Ethernet1/25

Switch(Config-If-Ethernet1/25)#ipv6 multicast source-control access-group 8001

2. Destination control

We want to confine that the users of the segment whose address is fe80::203:fff:fe01:228a/64 can not join the

ff1e::1/64 group, so we can configure as follows:

First, enable MLD Snooping in the VLAN where it locates (in this example, it is VLAN2).

Switch(config)#ipv6 mld snooping

Switch(config)#ipv6 mld snooping vlan 2

Then configure relative destination control access list and configure specified IPv6 address to use this access

list.

Switch(config)#ipv6 access-list 9000 deny any ff1e::1/64

Switch(config)#ipv6 access-list 9000 permit any any

Switch(config)#multicast destination-control

Switch(config)#ipv6 multicast destination-control fe80::203:fff:fe01:228a/64 access-group 9000

Thus, the users of this segment can only join groups other than 2ff1e::1/64.

3.Multicast policy

Server 2008::1 is sending important multicast data in group ff1e::1, we can configure on its access switch as

follows:

Switch(config)#ipv6 multicast policy 2008::1/128 ff1e::1/128 cos 4

Thus this multicast flow will have a priority of 4, when it passes the TRUNK port of this switch to another

switch (generally speaking, it is a relatively high priority, the data with higher priority might be protocol data, if

a higher priority is set, when there is too much multicast data, the switch protocol might operate abnormally).

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