Black Box LR1102A-T1/E1 Configuring Protocol Independent Multicasting Routing, PIM Configuration

20

CONFIGURING PROTOCOL

INDEPENDENT MULTICASTING

ROUTING

20.1 PIM Configuration

Protocol Independent Multicast (PIM) protocols route multicast packets to multicast groups. PIM is protocol independent because it can leverage whichever unicast routing protocol is used to populate unicast routing table. There are two modes of PIM protocol – Dense mode (DM) and Sparse mode (SM). Black Box supports SM only.

PIM-DM floods multicast traffic throughout the network initially and then generates prune messages as required. PIM-SM attempts to send multicast data only to networks which have active receivers. This is achieved by having a common Rendezvous Point (RP) known to the senders and receivers and by forming shared trees from the RP to the receivers.

PIM-SM is described in RFC 2362.

20.1.1PIM Commands

The general PIM commands supported in this release are:

Global parameters
Enable PIM	Blackbox/configure/ip> pim
Configure PIM mode	Blackbox/configure/ip/pim> mode [sparse dense]
Configure Assert Holdtime	Blackbox/configure/ip/pim>assert-holdtime <time>
Configure Hello Interval	Blackbox/configure/ip/pim>hello-interval <time>
Configure Hello Holdtime	Blackbox/configure/ip/pim>hello-holdtime <time>
Configure Hello priority	Blackbox/configure/ip/pim>hello-priority <value>
Configure Join/Prune	Blackbox/configure/ip/pim>join-prune-holdtime <time>
Holdtime
Configure Join /Prune	Blackbox/configure/ip/pim>join-prune-interval <time>
Interval
Configure MRT Period	Blackbox/configure/ip/pim>mrt-period <time>