[manet] Re: OLSRv2 draft

Hi Chris,

> That asymmetry can be broken if an additional form of responsive message
> is sent - a TC message in response to a new tuple in the Advertised
> Remote Router Set.

What happens if that message is lost?

Suppose you've got this topology, where the integers are the link metrics:


    A 
    | \ 4
    |  \
  1 |   C
    |  /
    | / 1
    B

A is using the route A-B-C, B is using the route B-C.

Now the link B-C breaks, so B reroutes its traffic through A.  It sends
a TC, but the TC is lost, so A is still sending its packets to C.

In ordinary OLSR, the loop will be broken at the next TC.  What happens in
your variant of OLSR?

-- Juliusz

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