Specifications

Configuring Multicast
April 16, 2009 Page 25 of 32
Basic PIM-SM Configurations
Bydefault,PIM‐SMisdisabledgloballyonEnterasysMatrixN‐Series,SecureStackC2andC3,and
G‐Seriesdevicesandattachedinterfaces.BasicPIM‐SMconfigurationincludesthefollowing
steps:
1. CreatingandenablingVLANswith IPinterfaces.
2. Configuringtheunderlyingunicastroutingprotocol(forexample,OSPF).
3. EnablingIGMPonthedevice
(onlyforSecureStackC2andC3devicesandG‐Seriesdevices)
andontheVLANs.
4. ConfiguringPIM‐SMonthedevice(onlyforSecureStackC2andC3devicesandG‐Series
devices)andontheVLANs.
BothProcedure 6andProcedure 7assumethefollowing:
•VLANshavebeenconfiguredandenabledwithIPinterfaces.
•Theunicastroutingprotocolhasbeenconfigured.
•IGMPhasbeenenabledonthedevicesandVLANsthatwillbeconnectedwithhosts.For
informationonenablingIGMP,seeConfiguringIGMPonpage15.
Procedure 6describesthebasicstepstheconfigurePIM‐SMonanEnterasysMatrixN‐Series
device.
Procedure 6 Basic PIM-SM Configuration (Enterasys Matrix N-Series)
Step Task Command(s)
1. If desired, change the DR priority of one or more
interfaces on the Enterasys Matrix N-Series
router from the default value of 1 in interface
configuration mode.
The highest priority PIM router on a shared
network is elected the DR for that network.
ip pim dr-priority priority
2. If the dynamic BSR RP set distribution method is
used on the network, configure at least one PIM
router as a candidate BSR in interface
configuration mode.
Note that the Enterasys Matrix N-Series router
does not act as a BSR without being explicitly
configured to do so.
ip pim bsr-candidate pim-interface
[hash-mask-length] [priority]
3. If the dynamic BSR RP set distribution method
will be used on the network, configure at least
one PIM router as a Candidate Rendezvous
Point in global configuration mode.
Note that the Enterasys Matrix N-Series router
does not act as an RP without being explicitly
configured to do so.
ip pim rp-candidate pim-interface
group-address group-mask [priority
priority]