Ping flooding

Jerry Anderson jerry at
Fri Jul 12 15:43:34 UTC 1996

Jerry Anderson (jerry at writes:
>>>> 3.  Better TCP windowing and better performance when all
>>>>     packets follow the same path.

When I wrote that I was thinking of multiple paths, rather than
asymmetric paths.  Compare the TCP performance of packet-based
load balancing to session-based load-balancing.

Vadim Antonov (avg at writes:
>>> 2) Don't Do Any Dynamic Routing Where Only One Path Exists.

Alan Hannan (alan at writes:
>> Certainly I would not agree with this rule.

Nor would I.  It might make sense in a flat topology, but ours is
more hierarchical.  I find network management easier when we push
the details of tail-circuit connections out to the access
router.  The less complications in hub and core routers, the

Paul Ferguson (pferguso at writes:
> 'Tis better to black-hole packets than to flap.

In core (EGP) routing, absolutely.  However, I haven't noticed
any ill effects of flapping in our internal network.

Jerry Anderson                                       jerry at
Principal Engineer                                 (402) 436-3030
Implementation & Consulting     
   Global Internet Network Services (formerly known as MIDnet)

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