[VoiceOps] Adtran Help

[Lee Riemer]

Turning off MAC address learning on a switch will turn it into a "hub" without the interface collisions.

> -----Original Message-----
> From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of Carlos
> Alvarez
> Sent: Tuesday, June 17, 2014 3:55 PM
> To: VoiceOps (voiceops at voiceops.org)
> Subject: Re: [VoiceOps] Adtran Help
> 
> We have a standard "kit" that goes to sites when there are issues.  It has a hub
> (real hub, not switch), a cheap manageable switch with a spanned port, and a
> Linux netbook with packet capture set up on it.
> This lets anyone with even marginal tech knowledge install it easily and start
> capturing.
> 
> The hub is problematic for voice quality, obviously, but can be useful to see
> broken network packets and junk that a switch may not pass.  We once found a
> network segment that was flooded with some kind of non-standard packets
> from a SCADA type device which weren't being passed through the switch.
> 
> 
> On Tue, Jun 17, 2014 at 1:46 PM, Gavin Henry <ghenry at suretec.co.uk> wrote:
> > On 17 June 2014 21:16, Carlos Alvarez <caalvarez at gmail.com> wrote:
> >> Our methodology for packet captures is to put an independent machine
> >> on a spanned port and capture on that.  Then it doesn't matter what
> >> the devices are doing, you get a true network picture.
> >
> > Same here or agents on the systems pushing SIP captures to a Homer
> instance.
> >
> > --
> > Kind Regards,
> >
> > Gavin Henry.
> >
> > Do you know we have our own VoIP provider called SureVoIP? See
> > http://www.surevoip.co.uk
> >
> > OpenPGP (GPG/PGP) Public Key: 0x8CFBA8E6 - Import from
> > hkp://subkeys.pgp.net or http://www.suretecgroup.com/0x8CFBA8E6.gpg
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