[cisco-voip] Teradici Zero Client packet loss when connected through Phones

[Ryan Ratliff (rratliff)]

Two things I can think of to investigate.
1. EEE settings on the phones (especially if they are on old software). This caused tons of problems with PCs a while back and may be coming into play here.
2. Automatic Port Synchronization - This setting forces the PC port to the same speed as the Switch port, so if your switch is 1000/Full and the Zero client doesn’t agree this could cause issues.

Given Mike’s reply about forcing them to 100/Full I’m guessing the 2nd setting could be coming into play.

-Ryan

On Dec 13, 2017, at 2:20 PM, Mike King <me at mpking.com<mailto:me at mpking.com>> wrote:

We have some Teradici Zero Clients, and began to have issues with them last year.   We ended up hard coding them to 100/Full, and our issues went away.

We did have a different use case, as we were having the zero clients at the end of runs, not plugged into a device with what has to be less than a 14 foot cord.  So I don't know.  We were attributing it to some kind of attenuation on the cable plant (We didn't own the cable plant, nor did we have test results of it), and dropping to 100/Full cleared it up so we stopped investigating.   We only had about 5 of the devices, and they are extremely static, so it wasn't worth the effort to investigate further.

On Tue, Dec 12, 2017 at 10:54 PM, Nathan Reeves <nathan.a.reeves at gmail.com<mailto:nathan.a.reeves at gmail.com>> wrote:
Interested to know if anyone's seen issues when connecting Teradici Zero Clients through the switchport on Cisco Phones.  In this case 8845 and 7841 phones.

Customer is moving to CUCM and has an established base of Zero Clients.  They're starting to see packet loss reported on their clients only when connected to the network via the phones.  Not previously noted packet loss with their previous IP Phone (Siemens).

Anyone know of any best practices / issues with this setup?

Thanks

Nathan

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