From: Ed Lui (edwlui@gmail.com)
Date: Fri Jun 06 2008 - 03:07:52 ART
Would storm control be a possible solution ?
On Thu, Jun 5, 2008 at 10:22 PM, Joseph Brunner <joe@affirmedsystems.com> wrote:
> Good evening,
>
>
>
> I am working on an issue where a high amount of broadcast data (15Mbps~) on
> a vlan on a single 3750 with an SVI is causing the switch's cpu to run at
> near 100% all day.
>
>
>
> The users on this segment need to be routed to the internet etc, but the
> broadcast does not need to be.
>
>
>
> I tried to configure Control Plane Policing on the 3750, it has the
> "control-plane" command to get into the control plane, but when I go to
> attach a "service-policy input control-plane-policy"
>
> it fails. the policy-map has a "police 128000 8000 exceed-action drop" etc
> under the class broadcast. this class-map is matching an acl permit udp any
> host 255.255.255.255, etc.
>
>
>
> I also thought of using the rate-limit command on the svi, which has helped
> us with 3640 routers in the past, etc.
>
>
>
> Does anyone else have any other ideas? the broadcast HAS to work as fast as
> possible between the physical ports in that vlan, but it should hit the svi
> at minimal levels for testing, etc.
>
>
>
> thanks,
>
>
>
> Joe
>
>
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>
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-- Edward Lui CCIE No. 20873 CCNP, MCSE 626.380.0813
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