Brocade Communications Systems Upgrade Pef IPMC5000PEF IPMC5000PEF Manual Do Utilizador

PIM DM versions

The Brocade device supports only PIM V2. PIM DM V2 sends messages to the multicast address
224.0.0.13 (ALL-PIM-ROUTERS) with protocol number 103.

Configuring PIM DM

NOTE
This section describes how to configure the "dense" mode of PIM, described in RFC 1075. Refer to 

Enabling PIM on the device and an interface

By default, PIM is disabled. To enable PIM:

•

Enable the feature globally.

•

Configure the IP interfaces that will use PIM.

•

Enable PIM locally on the ports that have the IP interfaces you configured for PIM.

Suppose you want to initiate the use of desktop video for fellow users on a sprawling campus network.
All destination workstations have the appropriate hardware and software but the devices that connect
the various buildings need to be configured to support PIM multicasts from the designated video
conference server as shown in the “Pruning leaf nodes from a multicast tree” figure.

PIM is enabled on each of the devices shown in the “Pruning leaf nodes from a multicast tree” figure, on
which multicasts are expected. You can enable PIM on each device independently or remotely from one
of the devices with a Telnet connection. Follow the same steps for each device. All changes are
dynamic.

Globally enabling and disabling PIM

To globally enable PIM, enter the following command.

Device(config)# router pim 

The [no] router pim command behaves in the following manner:

•

Entering a router pim command to enable PIM does not require a software reload.

•

Entering a no router pim command removes all configuration for PIM multicast on a device (router
pim level) only.

Enabling PIM for a specified VRF

To enable PIM for the VRF named "blue", use the following commands.

Device(config)# router pim vrf blue

Syntax: [no] router pim [ vrf vrf-name ]

The vrf parameter allows you to configure PIM (PIM-DM and PIM-SM) on the virtual routing and
forwarding instance (VRF) specified by the vrf-name variable. All PIM parameters available for the
default device instance are configurable for a VRF-based PIM instance.

PIM DM versions