nanog mailing list archives

Re: Traffic Engineering (fwd)


From: Brett Frankenberger <brettf () netcom com>
Date: Thu, 18 Sep 1997 18:43:26 -0500 (CDT)

:: Eric Germann writes ::

Granted, ping tends to get dropped on the floor at overloaded points, 

A common misconception.  Hosts (including the host functionality
internal to a router) may deal with pings differently depending on load
-- for example, pinging a router might result in delayed responses if
the router is busy.  But routers do not stop forwarding pings when they
are overloaded.  In the absence of traffic filters, a router (in the
general case -- there's probably an exception to prove the rule) will
forward a ping (that is not addressed to the router) with the same
priority as it will forward a TCP frame (that is not addressed to the
router.)


          - Brett  (brettf () netcom com)
 
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