Brocade Multi-Service IronWare Multicast Configuration Gui Instrukcja Użytkownika Pobierz pdf (Strona 101)

Multi-Service IronWare Multicast Configuration Guide 89

53-1003032-02

PIM Anycast RP

PIMR2(config)# router pim

PIMR2(config-pim-router)# rp-address 10.0.0.1

PIMR2(config-pim-router)# exit

PIM Anycast RP

PIM Anycast RP is a method of providing load balancing and fast convergence to PIM RPs in an IPv4

multicast domain. The RP address of the Anycast RP is a shared address used among multiple PIM

routers, known as PIM RP. The PIM RP routers create an Anycast RP set. Each router in the Anycast

RP set is configured using two IP addresses; a shared RP address in their loopback address and a

separate, unique ip address. The loopback address must be reachable by all PIM routers in the

multicast domain. The separate, unique ip address is configured to establish static peering with

other PIM routers and communication with the peers.

When the source is activated in a PIM Anycast RP domain, the PIM First Hop (FH) will register the

source to the closet PIM RP. The PIM RP follows the same MSDP Anycast RP operation by

decapsulating the packet and creating the (s,g) state. If there are external peers in the Anycast RP

set, the router will re-encapsulate the packet with the local peering address as the source address

of the encapsulation. The router will unicast the packet to all Anycast RP peers. The

re-encapsulation of the data register packet to Anycast RP peers ensures source state distribution

to all RPs in a multicast domain.

Configuring PIM Anycast RP

A new PIM CLI is introduced for PIM Anycast RP under the router pim sub mode. The PIM CLI

specifies mapping of the RP and the Anycast RP peers.

To configure PIM Anycast RP, enter the following command.

Brocade(config)#router pim

Brocade(config-pim-router)#rp-address 100.1.1.1

Brocade(config-pim-router)#anycast-rp 100.1.1.1 my-anycast-rp-set-acl

Syntax: [no] anycast-rp rp-address anycast-rp-set-acl

The rp address parameter specifies a shared RP address used among multiple PIM routers.

The anycast-rp-set-acl parameter specifies a host based simple acl used to specifies the address of

the Anycast RP set, including a local address.

The following example is a configuration of PIM Anycast RP 100.1.1.1.The example avoids using

loopback 1 interface when configuring PIM Anycast RP because the loopback 1 address could be

used as a router-id. A PIM First Hop router will register the source with the closest RP. The first RP

that receives the register will re-encapsulate the register to all other Anycast RP peers. Please refer

to Figure 12 as described in the configuration of PIM Anycast RP 100.1.1.1.

Brocade(config)#interface loopback 2

Brocade(config-lbif-2)#ip address 100.1.1.1/24

Brocade(config-lbif-2)#ip pim-sparse

Brocade(config-lbif-2)#interface loopback 3

Brocade(config-lbif-3)#ip address 1.1.1.1/24

Brocade(config-lbif-3)#ip pim-sparse

Brocade(config-lbif-3)#router pim

Brocade(config-pim-router)#rp-address 100.1.1.1

Brocade(config-pim-router)#anycast-rp 100.1.1.1 my-anycast-rp-set

1 2 ... 96 97 98 99 100 101 102 103 104 105 106 ... 215 216

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