Enterasys SecureStack C2 C2G170-24 User Manual

Configuring PIM-SM
SecureStack C2 Configuration Guide 20-49
Configuring PIM-SM
Design Considerations
Enterasys Networksrecommendsthatadministratorsconsiderthefollowingrecommendations
beforeconfiguringtheSecureStackC2foraPIM‐SMenvironment.
•ASecureStackC2cannotbeconfiguredas aCandidate‐RPoraCandidate‐BSR.
•ASecureStackC2shouldnotbethefirsthoprouterforamulticaststream.Inotherwords,the
multicast
streamshouldnotoriginateonaSecureStackC2.
•ASecureStackC2shouldnotbepositionedinthecoreofaPIM‐SMtopology,andshould
onlybepositionedattheedgeinaPIM‐SMtopology.Inotherwords,theSecureStackC2
shouldonlybeusedtodelivermulticaststreamsto
endclients.
Purpose
ToenableandconfigureProtocolIndependentMulticastinSparseMode(PIM‐SM).Thisprotocol
providesthemeansofdynamicallylearninghowtoforwardmulticasttrafficinanenvironment
wheregroupmembersaresparselylocatedthroughoutthenetworkandbandwidthislimited.In
situationswheremembersaredenselylocatedandbandwidthis
plentiful,DVMRPwouldsuffice
(see“ConfiguringDVMRP”onpage20‐33.)
PIM‐SMdeterminesthenetworktopologyusingtheunderlyingunicastroutingprotocoltobuild
aMulticastRoutingInformationBase(MRIB).
Commands
* Advanced License Required *
PIM is an advanced routing feature that must be enabled with a license key. If you have purchased an
advanced license key, and have enabled routing on the device, you must activate your license as described in
the chapter entitled “Activating Licensed Features” in order to enable the PIM command set. If you wish to
purchase an advanced routing license, contact Enterasys Networks Sales.
Note: IGMP must be enabled on all VLANs running PIM-SM, and must also be globally enabled
on the SecureStack C2. For details on enabling IGMP, refer to Chapter 13.
For information about... Refer to page...
Global configuration commands
ip pimsm 20-50
ip pimsm staticrp 20-50
Interface configuration commands
ip pimsm enable 20-51
ip pimsm query-interval 20-52
Display commands
show ip pimsm 20-52
show ip pimsm componenttable 20-53

Enterasys SecureStack C2 C2G170-24 Specifications

General

Brand	Enterasys
Model	SecureStack C2 C2G170-24
Category	Switch
Language	English