ISIS for IPv6

isis-single-multi-topology-sfp-restriction2

ISIS for IPv6 (Intermediate System to Intermediate System for IPv6)

ISIS is one of the important Link-State protocols. With entrence of IPv6 to the network world, ISIS also need to uptade itself for this new routed protocol. So, ISIS for IPv6 is developed.

Basically, ISIS for IPv6 is similar to previous version of ISIS, before this enhancement. But in this enhanced version of ISIS, there are some differences for IPv6 suppor. In this article, we ll focus on these extensions.

Let’s see the import extensions of IPv6 one by one.

IPv6 Address Support

ISIS for IPv6 is the enhanced evrsion of ISIS, that support IPv6 routing. With ISIS for IPv6 enhancements, ISIS advertise both IPv6 prefixes and the previous IPv4 and OSI prefixes. In the previous version of ISIS, only IPv4 and OSI prefixes were being advetised.

Basically, address families supportde by ISIS is increased with this ISIS for IPv6 enhancements.

Multi-Topology Extension of ISIS

Formerly, ISIS uses the same topology for both IPv4 and IPv6. It assume that all the routers in the topology must support both IPv4 and IPv6. With single topology, a single SFP per level were used for both IPv4 and IPv6. The configurations of the routes might be done for both of these protocols.

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IPv6 Routing Protocols…

IPv6 Routing Protocols – Part 1
IPv6 Routing Protocols – Part 2 (OSPFv3)
IPv6 Routing Protocols – Part 3 (EIGRP for IPv6)
IPv6 Routing Protocols – Part 4 (RIPng)
IPv6 Routing Protocols – Part 5 (ISIS for IPv6)

IPv6 Routing Protocols CONFIGURATIONs..!

Static/Default Route Configuration Example On Cisco IOS
OSPFv3 Configuration Example On Cisco IOS
EIGRP for IPv6 Configuration Example On Cisco IOS
RIPng Configuration Example On Cisco IOS
ISIS for IPv6 Configuration Example On Cisco IOS

Lesson tags: IPv6, routing, ipv6 routing, is-is for ipv6
Back to: IPv6 Course > IS-IS For IPv6

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