[j-nsp] Verifying Juniper ECMP

[sthaug at nethelp.no]

> i've done exhaustive packet captures for juniper on this, thinking that
> somehow the EX was actually duplicating a packet incorrectly out one
> interface. but this stateless ECMP rehash for all flows every time a new
> flow is added or taken away makes a lot more sense to me, and also really
> sucks if true.

"stateless ECMP rehash for all flows every time a new link (not flow)
is added or taken away" is *exactly* what I would expect (and want) to
happen. How do you expect ECMP to work in the presence of links added
or removed?

Steinar Haug, Nethelp consulting, sthaug at nethelp.no