#3 compatible announcement of I{P,S}-REACH

[Anonymous]

IMHO you should change the defaults for
generating REACHABILITY TLVs -

best current practise is some sort of
"compatible" mode where both old an
newstyle

IS-REACH TLVs (2,22) and

both old and newstyle

IP-REACH TLVs (128/130,135) are advertised;

it is important to clip the metrics of the wide
TLVs to 63 in order to avoid non-congruent topologies,
where some systems does not support any of the two;

---

optionally you should be able to turn one set of TLVs
off per level;

configuration syntax would be

level-1-metric-style small|wide|both
level-2-metric-style small|wide|both

at the isis router level;

[Ofer Wald]

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Hi,

I agree with you on this, just that its
narrow|wide|both :)

But before that we need to actually be able to generate
the TE stuff, which will probably happen in the month,
anyhow added to the TODOs

Ofer.