[cisco-voip] AnyConnect Wireless and Jabber Voice

[Ryan Huff]

Time for wire captures I’d say.

Compare headers with and without AnyConnect. Do the markings change? Is there excessive broadcast traffic hitting the NIC when using AnyConnect? ... etc.

TAC will want that anyway so getting traces setup won’t be a wasted effort. Outside of that, you’re just going to be stabbing in the dark hoping to hit something :).

-Ryan

On Dec 13, 2017, at 12:30 PM, Casper, Steven <SCASPER at mtb.com<mailto:SCASPER at mtb.com>> wrote:

Hi Ryan,

Thanks for responding. Running Cisco Jabber 11.8.3. We are only using AnyConnect NAM as a supplicant for 802.1x/ ISE. Not using for  VPN at all. This is happening internally on site connected to our Cisco wireless environment that uses 3602/3702 APs and 5508 WLCs. I know it is crazy but it seems directly related to us installing AnyConnect.

Steve

From: Ryan Huff [mailto:ryanhuff at outlook.com]
Sent: Wednesday, December 13, 2017 12:05 PM
To: Casper, Steven
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] AnyConnect Wireless and Jabber Voice

Sounds like jitter .... usually QoS related.


Spitballing here cause I don’t know your topology but it sounds like the traffic is getting marked best effort when traversing the VPN connection.


If you can illustrate the Jabber client’s connection path (and type of Jabber client), I might be able to help a little more.


Is this an on-prem Jabber install? Always a good idea to run through this guide as well for on-perm installs: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/jabber/11_5/CJAB_BK_D00D8CBD_00_deployment-installation-guide-cisco-jabber115/CJAB_BK_D00D8CBD_00_deployment-installation-guide-cisco-jabber115_chapter_010001.html<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.cisco.com_c_en_us_td_docs_voice-5Fip-5Fcomm_jabber_11-5F5_CJAB-5FBK-5FD00D8CBD-5F00-5Fdeployment-2Dinstallation-2Dguide-2Dcisco-2Djabber115_CJAB-5FBK-5FD00D8CBD-5F00-5Fdeployment-2Dinstallation-2Dguide-2Dcisco-2Djabber115-5Fchapter-5F010001.html&d=DwMGaQ&c=DGYIV7x3cSzfJxnLcx-BeqhepWcu1bx4JZ4-8hMr-34&r=qeensKlZSK_pjhdmlJNb0g&m=90-JpNE4_pooMtd-5cGXHXLJ6DMdXcyBSIlEhwz7Qj8&s=vBZ1i1_6y3F-V1ma4e398kNlDjJZkhmbW1u1uS2EFBc&e=>

Sent from my iPhone

On Dec 13, 2017, at 11:45 AM, Casper, Steven via cisco-voip <cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>> wrote:
We have installed AnyConnect 4.5 and have started to have issues with Jabber calls using wireless.  Every minute outbound voice becomes garbled for several seconds  Running a continuous ping from a PC to the wireless default gateway we jump from 2ms to 160+ms every minute that corresponds to the garbed voice. Opening a TAC case but curious if anyone else has seen this behavior. This does not occur on a device without AnyConnect and if you uninstall the software  everything  works fine. This also does occur when connected wired using AnyConnect.

Steve



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