Subject: cap exch

From: "David Miller (254-5752)" <[email-masked]>
Date: Wed, 2 Jun 93 16:12:45 EDT

> =========+====+
> cap exch |    | Sounds good in principle, but wouldn't that be covered by
> =========+====+    XID3 (-> NT 2.1) ?

The capabilities exchange discussed in this matrix is different than that
in the NT2.1 XID exchange.  This is a cap exch between the routers as
opposed to a cap exch between the end devices.  There exists a need for
the routers on opposite ends of the circuit to establish common grounds
for routing traffic to one another, such as window sizes for pacing
and other pacing capabilities.  The XID flow establishes the
capabilities of the end stations, which do not need to know that the
actual circuit is being terminated by the router.

David Miller