Re: [Devil-Linux-discuss] Limiting/viewing broadcast in tagged trunks

[Matthew H. <mat...@va...>]

Put storm control on the Cisco 

-----Original Message-----
From: Aaron McDonnell [mailto:aa...@uw...] 
Sent: 16 April 2009 12:16
To: dev...@li...
Subject: [Devil-Linux-discuss] Limiting/viewing broadcast in tagged
trunks

Hi All,

We're using Devil Linux to provide a Quarantine environment as a
sub-network within the normal one, but we ran into an issue yesterday
were extreme amounts of broadcast coming from the Quarantine box were
causing CPU load issues on the Catalyst 6513 core.

The Devil Linux box has a single 100Mbps connection into it with about 3
dozen vlans tagged on that connection.  When the broadcast starts, we
first have no way of knowing which of those vlans is causing the issue.
So first question would be does anyone know of a way to quickly check
out the broadcast of the individual vlans and see which is much higher
than normal?

Second, does anyone know if there is a way that I can limit broadcast
from that box (either on a per-vlan basis or as a whole)?

--

Aaron McDonnell
Network Administrator
Network Operations Centre
University of Western Ontario
Tel: 519-661-2111 ext. 86558

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