IP Set Display Issues

[chrisay59]

Hi Guys, just wondering if you have ever seen the following fault symptoms:



Whilst carrying out a migration of 69 users from a BCM on to a CS1KE Rls 5 installation we started to experience the following:



IP Set (both 1140E and 1120E) re-booted, DHCP IP Address allocated, IP Set Displays Node and TN, however display takes an inordinate length of time to build, then when information entered, Terminal Manager Connect is displayed (sometimes) then again after an inordinate length of time display shows default date and time – 01/01 12:00, however dial tone is present, and calls can be made and received, also although Context Sensitive Keys are NOT displayed, when they are pressed the function is activated. After several re-boots, the correct display is presented. This fault initially presented itself on the 13th Floor of a office block (Site 1), however upon further investigation other phones on other floors gave the same fault indication, even though they were installed over a period of 3 months last year and were up and working without any issue. Be aware that the fault is NOT present on all phones in the same block.



Also as this site is split over two geographical locations (Site 1 – 400 users and Site 2 – 300 users connected via a MPLS Cloud)), (the CS1KE is located in Site 2) the fault DOES NOT occur in Site 2!



Any ideas?

 

[911guru]

Did you happen to notice what the firmware state was on the phones? When you moved to the CS 1000 I'm sure that they would have gone through a FW download.

It doesn't completely explain your issue, but depending how many sets were trying to register, it may have been a bit before they all got their FW updated.

If signalling between the set and the call server was delayed, you probably would have seen other issues with the set rebooting from not responding to the UNIStim messages.

911Guru

http://pbx-e911.com

 

[chrisay59]

Hi, thanks for that, the F/W on all the phones is C39, I know that the current release is C4D, but what was strange was that the fault first started on the 13th Floor then spread to all the others (9,8,7,6,5 and 4, we don't have a presense on 12,11,10,3,2 and 1), even though they had all been working fine. Now if you re-boot an IP Set anywhere in that building on any of those floors you get a 1 in 4 chance of the Set giving the fault symptom. My gut feeling is that the data guys have done something, but as is often the case they are saying, "Hey we've not touched anything!

 

[Triton101]

Sounds like you might be on the right track the data guys doing something.

Changes to the VLAN?
Changes to PORT BLOCKING?
Extra equipment on the LAN?
If all of the floors are having the problem you might have an issue on the CORE switches, that tie into the MPLS over to the other side.

If you rule out the phone equipment then there is only data LAN left.

 

[chrisay59]

Again, thanks, I've now raised a case with Nortel and we shall see what they come up with, they ahve a bigger stick then me to beat the 3rd party data guys with!

 

[chrisay59]

It was the Port Speed, should be set to Auto 10/100 when it isn't the display which uses ICMP Packets to build its Display Mapping Field times out!

 

[gwebster]

To clarify - you had a duplex mismatch between the data switch and the IP Phone?