TLV Type 2: includes a 8-bit default metric
TLV Type 135: support a 32-bit metric and an up/down bit
TLV Type 134: carries a 32-bit router ID for traffic engineering
Type-10 Opaque :advertisement are flooded thoughout the
Type 22: Contains information about the link and include other sub-TLVS
From the link provided by nolbi:
TLV Type 2: 8 bits (...but only six out of eight bits are used.)
TLV Type 134: TE Router ID , MPLS traffic engineering router ID
TLV Type 135: Provides a 32 bit metric and adds a bit for the "up/down"
Type-10 Opaque : LSAs are not flooded beyond the borders of their associated area
Type 22: The metric octets are encoded as a 24-bit unsigned integer. and i think that advertise links and sub-tlv "This will allow advertisement of a link for purposes other than building the normal Shortest Path Tree." in https://datatracker.ietf.org/doc/html/rfc5305#section-3
Why do we need to know this detail!? Such a stupid question!
I can tell you that the top MPLS engineers at one of the world's largest biggest SP do not know this.
Agreed.
https://www.rfc-editor.org/rfc/rfc5305.html
5.2.1. Sub-TLVs for the Extended IS Reachability TLV
This registry contains codepoints for sub-TLVs of TLV 22.
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