32.1.15 Configuring IPv6 PIM-SSM in VRF [SL-L3A]

<Structure of this section>

(1) IPv6 PIM-SSM Address Setting

Points to note: The configuration below is performed in global configuration mode to use IPv6 PIM-SSM for the Switch in a VRF. These settings cause IPv6 PIM-SSM to run within the specified SSM address range on the VRF interfaces for which IPv6 PIM-SM is set. The Switch can set only one SSM address for each VRF. In this example, the default (ff30::/12) is used for the SSM address range for which IPv6 PIM-SSM runs in VRF 10.

Command examples

(config)# ipv6 pim vrf 10 ssm default

Enables the use of IPv6 PIM-SSM for VRF 10 (with an SSM address range of ff30::/12).

(2) Set IPv6 PIM-SSM to work together in MLDv1/MLDv2(EXCLUDE mode.)

Points to note

Because source addresses cannot be differentiated with MLDv1 or MLDv2 (EXCLUDE mode), linkage to the IPv6 PIM-SSM cannot be performed. With the Switch, the group address and source address for which IPv6 PIM-SSM is run can be set to link with IPv6 PIM-SSM. This functionality must be set for each VRF. The group address for which IPv6 PIM-SSM is run needs to be within the SSM address range specified for the target VRF in the IPv6 PIM-SSM address setting. The figure below shows an IPv6 PIM-SSM configuration example in which VPN 2 is associated with VRF 10 and ff35::1 is used as the group address for VPN 2. When two servers are used in the same VPN, 2001:db8:20::2 is used as the source address of Server 1 and 2001:db8:30::2 is used as the source address of Server 2.

Figure 32-3: Sample IPv6 PIM-SSM Configuration in VRF

Command examples

(config)# ipv6 access-list GROUP2

(config-ipv6-acl)# permit ipv6 any host ff35::1

(config-ipv6-acl)# exit

Creates an access list for the multicast group addresses to be managed in VRF 10.
(config)# ipv6 mld ssm-map vrf 10 static GROUP2 2001:db8:20::2

(config)# ipv6 mld ssm-map vrf 10 static GROUP2 2001:db8:30::2

For VRF 10, sets the group address for which IPv6 PIM-SSM is run in VPN 2, and the source addresses of server 1 and server 2 (the access list created in step 1 is used to specify the group address).
(config)# ipv6 mld vrf 10 ssm-map enable

Enables IPv6 PIM-SSM to be used for MLDv1 and MLDv2 (EXCLUDE mode) on VRF 10.