[176892] in North American Network Operators' Group

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Is there a case for storm control and/or unknown traffic flood

daemon@ATHENA.MIT.EDU (Jason Lixfeld)
Tue Dec 16 11:32:49 2014

X-Original-To: nanog@nanog.org
From: Jason Lixfeld <jason@lixfeld.ca>
Date: Tue, 16 Dec 2014 11:32:40 -0500
To: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org

Greetings,

Conceptually, a layer 2 port that is configured for either port protect =
mode (a=E2=80=99la Cisco 2950 vintage), UNI port-type (a=E2=80=99la =
Cisco ME3400 vintage) or EVC + split-horizon (a=E2=80=99la ME3600 =
vintage) should negate any requirement for features such as storm =
control or unknown traffic flood control to be configured in conjunction =
with either of those port modes.  In theory then, either of the three =
aforementioned configuration modes would prevent any and all cross-talk =
between ports, in the same bridge-domain, notwithstanding traffic =
hitting the =E2=80=98trusted=E2=80=99 port, be it the trunk or uplink =
port, SVI, routed BD or whatever name your hardware uses to define that =
trusted port.

Assuming that=E2=80=99s an accurate theory, is there a case that I might =
be missing where one would need to use storm control or unknown traffic =
flood control in this sort of environment?=

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