I have a problem with video not being displayed at branch#1 8865 phone. If I call branch#2 8865 phone - it works fine.
Source phone: 9971. The same region and location. WAN bandwidth at both branches: similar (ca 10 Mbps)
Location: all unlimited
Intraregion Bit Rate: 6000
Test call: Phone call connected = dark screen at remote phone. After forcing renegotiation (OFF/ON source camera) = picture appears at remote phone, but instantly freezes.
I noticed that failed branch initialy negoiates bw=1000000 but few seconds later lowers it down to bw=220000
(Re-INVITE comes from CUCM). Can this be caused by Jitter too high (see logs below)?
Some video logs (from 9971)
Some earlier negotiation data
I hope I did not overload the description.
Thanks for answers in advance.
This is an old bug but might point you in the right direction.
Also, have you tried adjusting the allowed bandwidth on the phone settings --> Video --> Bandwidth Allowance.
Von Clawson, thanks for reply and your suggestions.
I tested the problem with the newest available firmware 12.8(1)SR1 - no change. The same firmware version in other location works fine.
I looked for the Video settings you mentioned, but I assumed that option is available in Multiplatform firmware version which is not the case here
Just for the record: we noticed, that MTU for the WAN network (based on GET-VPN) was lower then used by 9971 (99xx series in general). I got info from TAC, that MTU was hardcoded in 9971 so it couldn't be adjusted (negotiated).
Tests proved that when we disabled GET-VPN for video traffic, video from 9971 was received at 8865 at remote site with no problems at all.
Additionally we can assume that 8865s are aware of MTU set for CUCM (it was 1410) and are able to adjust it, because 9971 was receiving 8865's video no matter what MTU (at network level) was available between sites.
But how to deduce it from logs?
Thanks for your time.
Have you had a look at the Locations configuration for both sites (stare and compare) also you may want to allocate a little more bandwidth for Video. Just a thought
Configure Location Bandwidth Manager and Related Alerts:
8544 NOT 17:17:10.952095 ms-VIDEO.video_get_profile_attribs [profile_level_id=0x00428016:2.2][bw=1000000:1000000][width=640][height=360][fps=30]
5899 NOT 16:58:45.581208 ms-VIDEO.video_get_profile_attribs [profile_level_id=0x00428016:2.2][bw=220000:220000][width=176][height=144][fps=30]