On the 7210 SAS, by default, resources required to send LDP IPv6 packets for control plane processing are not available. The resources are shared with other control packets, and the total number of resources is configured using the config>system>resource-profile>ingress-internal-tcam>ip-mpls-protocols command. The user must allocate the appropriate number of resources using the ip-mpls-protocols command to ensure that LDP IPv6 can be configured for use.
The LDP IPv6 IFP entry is installed when an interface is enabled for LDP IPv6. The user can configure the config>router>ldp>interface-parameters>interface>ipv6 command to trigger the installation of the IFP entry.
The IFP entry is installed for the first LDP IPv6-enabled interface. It is uninstalled when the last interface is LDP IPv6-disabled.
The LDP IPv6 IFP entry is uninstalled only when the user configures the configure>router>ldp>interface-parameters>interface>no ipv6 command for the last interface in the ldp context. Executing the configure>router>ldp>interface-parameters>interface>ipv6>shutdown command on the last interface does not uninstall the IFP entry.
The user can issue the config>router>no ldp command only after issuing the config>router>ldp>shutdown command.