Alcatel-Lucent 7750 SR OS - Page 1056

VPRN Service Configuration Commands
Page 1056 7750 SR OS Services Guide
An operator can configure an interface (router or IES or VPRN interfaces) to IGMP and PIM. The
interface IGMP state will be synchronized to the backup node if it is associated with the redundant
peer port. The interface can be configured to use PIM which will cause multicast streams to be sent to
the elected DR only. The DR will also be the router sending traffic to the DSLAM. Since it may be
required to attract traffic to both routers a flag non-dr-attract-trafffic can be used in the PIM context to
have the router ignore the DR state and attract traffic when not DR. Note that while using this flag the
router may not send the stream down to the DSLAM while not DR.
When enabled, the designated router state is ignored. When disabled, no non-dr-attract-traffic, the
designated router value is honored.
Default no non-dr-attract-traffic
rp
Syntax rp
Context config>service>vprn>pim
Description This command enables access to the context to configure the rendezvous point (RP) ) of a PIM
protocol instance.
An Alcatel-Lucent PIM router acting as an RP must respond to a PIM register message specifying an
SSM multicast group address by sending to the first hop router stop register message(s). It does not
build an (S, G) shortest path tree toward the first hop router. An SSM multicast group address can be
either from the SSM default range of 232/8 or from a multicast group address range that was
explicitly configured for SSM.
Default rp enabled when PIM is enabled.
anycast
Syntax [no] anycast rp-ip-address
Context config>service>vprn>pim>rp
Description This command configures a PIM anycast protocol instance for the RP being configured. Anycast
enables fast convergence when a PIM RP router fails by allowing receivers and sources to rendezvous
at the closest RP.
The no form of the command removes the anycast instance from the configuration.
Default none
Parameters rp-ip-address — Configure the loopback IP address shared by all routes that form the RP set for this
anycast instance. Only a single address can be configured. If another anycast command is entered
with an address then the old address will be replaced with the new address. If no ip-address is
entered then the command is simply used to enter the anycast CLI level.
Values Any valid loopback address configured on the node.