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ME60 V800R010C10SPC500 Feature Description - WAN Access 01

This is ME60 V800R010C10SPC500 Feature Description - WAN Access
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IS-IS for IPv6

IS-IS for IPv6

Standard protocols released by the IETF defines two new TLVs that can support IPv6 routes and a new Network Layer Protocol Identifier (NLPID), which ensures that IS-IS can process and calculate IPv6 routes.

The two new TLVs are as follows:

  • IPv6 Reachability

    The IPv6 Reachability TLV indicates the reachability of a network by specifying the route prefix and metric. The type value is 236 (0xEC).

  • IPv6 Interface Address

    The IPv6 Interface Address TLV is similar to the IP interface address TLV of IPv4 in function, except that it changes the original 32-bit IPv4 address to a 128-bit IPv6 address. The type value is 232 (0xE8).

The NLPID is an 8-bit field that identifies network layer protocol packets. The NLPID of IPv6 is 142 (0x8E). If an IS-IS router supports IPv6, it advertises routing information through the NLPID value.

Updated: 2019-01-04

Document ID: EDOC1100059473

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