Hi,
2.4. MTU TLV
The MTU TLV encodes information on the maximum transmission unit for
an LSP, from the advertising LSR to the egress(es) over all valid
paths.
The encoding for the MTU TLV is:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|1|1| MTU TLV (0x0XXX) | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| MTU |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
MTU
This is a 16-bit unsigned integer that represents the MTU in octets
for an LSP or segment of an LSP.
Is this unnecessarily limiting? Shouldn't we support MPLS over L2 technologies
that support larger than 64k MTUs?
Cheers,
Adrian