[150687] in North American Network Operators' Group
RE: Switch designed for mirroring tap ports
daemon@ATHENA.MIT.EDU (Slade, Ian)
Thu Mar 1 09:51:22 2012
Date: Thu, 1 Mar 2012 09:50:15 -0500
In-Reply-To: <CAHGyo+8Kn2LvBPfOA5BCYCcL9EXu-bwJ_1=iiSrapUO_LzJczA@mail.gmail.com>
From: "Slade, Ian" <IAN.SLADE@saic.com>
To: "A. Pishdadi" <apishdadi@gmail.com>, <gwood83@gmail.com>,
"NANOG" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Yes, the Cat 6500s are limited to a certain number of SPAN/port
monitoring sessions.
Another tool, we've switched to after using the Gigamon for many years
are taps and the Anue 5236 (10Gb) port aggregator. From this we can
split the SPAN feeds into different IDS/monitoring servers or load-share
among several output servers. It is a great tool and very easy GUI to
control the feeds and output ports.
Ian Slade
Sr. Network Engineer, SAIC ITS Systems Engineering
ian.slade@saic.com 703-676-5234 http://www.saic.com
-----Original Message-----
From: nanog-bounces+ian.slade=3Dsaic.com@nanog.org
[mailto:nanog-bounces+ian.slade=3Dsaic.com@nanog.org] On Behalf Of A.
Pishdadi
Sent: Thursday, March 01, 2012 3:54 AM
To: gwood83@gmail.com
Cc: NANOG
Subject: Re: Switch designed for mirroring tap ports
No the issue isnt monitoring many ports at once, its having more then 1
set of monitoring or 2 sets in the 6500 case. So I am monitoring say
port channel 1 to ports 1 2 3 4, and port channel 2 , ports 4 5 6 and 7.
After that I cannot monitor anymore ports.
On Thu, Mar 1, 2012 at 2:34 AM, gwood83@gmail.com <gwood83@gmail.com>
wrote:
> Instead of monitoring the physical interface, monitor the vlan from a=20
> Cisco IOS perspective on a CAT6500. This will capture all physical=20
> interfaces associated with that vlan for mirroring/span.
>
> HTH
>
> Jonathan
> #22744
>
> Sent from my HTC on the Now Network from Sprint!
>
>
> ----- Reply message -----
> From: "A. Pishdadi" <apishdadi@gmail.com>
> Date: Wed, Feb 29, 2012 11:12 pm
> Subject: Switch designed for mirroring tap ports
> To: "NANOG" <nanog@nanog.org>
>
> Hello All,
>
> We are looking for a switch or a device that we can use for mirroring=20
> tap ports. For example , take a mirror port off of a core router say a
> 6509, connect it to a port on said device, say port 1. I would like=20
> then to be able to mirror port 1 on said device to multiple ports, =20
> like port 2 , 3, 4. We have the need to analyze traffic from one port
on multiple devices.
> Seems most switches are limited to mirroring to a max of 1 or 2 ports.
>
>
> Any suggestions would be great.
>
> Thanks,
> Ameen
>
>
>
