Enterasys G3G170-24 - Chapter 19: Ospfv3 Configuration; Overview

Enterasys G-Series CLI Reference 19-1
19
OSPFv3 Configuration
ThecommandsinthischapterperformconfigurationoftheOSPFv3routingprotocolonthe
EnterasysG‐Series.ForinformationaboutgeneralIPv6configuration,refertoChapter 18,IPv6
Configuration.ForinformationaboutmanagingIPv6hostfunctionalityattheswitchlevel,refer
toChapter 17,IPv6Mana gement.
Overview
OSPFv3istheOpenShortestPathFirstroutingprotocolforIPv6.ItissimilartoOSPFv2inits
conceptofalinkstatedatabase,intra/interareaandASexternalroutesandvirtuallinks.OSPFv3
alsodiffersfromOSPFv2inanumberofrespects:
• Peeringisdonevialink‐localaddresses.
•The
protocolislink‐ratherthannetwork‐centric.
• AddressingsemanticshavebeenmovedtoleafLSAs,whicheventuallywillallowitsusefor
bothIPv4andIPv6.
•TwonewLSAshavebeenintroduced:thelinkLSAandtheintra‐areaLSA.
Point‐to‐pointlinksaresupportedinordertoenableoperationover
tunnels.OSPFv3views
IPv6‐over‐IPv4tunnelsasapoint‐to‐pointinterfacewithalink‐localaddressandpossibly,a
globalunicastaddress.OSPFv3usesthereportedMTUfortunnelinterfaces.
OSPFv3supportsECMProutes.OSPFv3includesNSSAandAS‐externalLSAoverflowlimit
support.RFC1583compatibilitydoesnot
applytoOSPFv3.NoOSPFv3authenticationmethods
aresupportedatthistime.
LSAformatsarechanged,andthetype3and4summaryLSAsare renamed“inter‐area‐prefix”
and“inter‐area‐router”LSAs.AlsonotethatOSPFv3LSAidentifierscontainnoaddressing
semantics.LSAscopeisgeneralizedtolink,area,
andASscope.OSPFv3specifiestheprocessing
* IPv6 Routing License Required *
IPv6 routing must be enabled with a license key in order to use this feature. If you have purchased an IPv6
routing license key, and have enabled routing on the device, you must activate your license as described in
“Activating Licensed Features” on page 2-27 in order to enable the OSPFv3 protocol configuration command
set. If you wish to purchase an IPv6 routing license, contact Enterasys Networks Sales.
For information about... Refer to page...
Global OSPFv3 Configuration Commands 19-3
Area Configuration Commands 19-9
Interface Configuration Commands 19-20
OSPFv3 Show Commands 19-27