consistency and cix

Randy Bush randy at psg.com
Fri Mar 27 19:41:28 UTC 1998


V peers with X at a number of points.  V and X announce the same routes
to each other at all these points.

V and X are also members of the CIX and are announcing routes to the CIX
router.  X announces different routes to the CIX router than they
announce directly to peer V because Y pays X to specifically announce
Y's routes at the CIX.

Should V be unhappy with X's inconsistent route announcements?  Should
X's announcement via the CIX be consistent with their announcements at
the other points V and X meet?

  o yes, because the CIX is a peering point, though router-based (this
    in itself may be worth a different discussion).

  o no, because in realty V and X each are paying customers of the CIX,
    and the CIX is merely announcing their customers' routes to each
    other.

My apologies for opening an operational issue in an inappropriate forum.

randy



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