02-05-2014 08:49 AM - edited 03-16-2019 09:36 PM
Hi All,
I was wondering if anyone has seen this. We have a bunch of 7945 phones in a bracn office that register to CMs (one pub, and one sub- both is same location). There is a 2921 router at the brach office for srst and pstn access. The issue I am seeing is that the phones go into srst when there is a link problem, but they never register back with the CMs once the link is back up. We manually power cycel the phones to ge them to register with CM. Even in the network configuration page of the phone, it shows the SRST router as active CM and the actual servers as the Standby. This tells me that the phones do know that the link is back up, but they stay with the router. How do I get them to automatically revert to the servers once the link is back up?
I hope this makes sense.
Thanks.
Solved! Go to Solution.
02-10-2014 08:08 AM
Hi Mihir,
Ip phone is sending keepalive message to CUCM but it is not receiving keepaliveack from it. We are receiving TCP ack from CUCM but no keepalive ack. As far as i know if no keepalive ack is received from CUCM after 3 keepalives then IP phone will reset the TCP session and will start the process again. Same can be seen in packet capture.
Try taking capture from CUCM interface either by spanning or using CUCM CLI. Check whether CUCM is sending keepalive ack or not. If it is sending then may be your firewall is dropping the packets.
Below is got doc for your understanding
https://supportforums.cisco.com/docs/DOC-19066#Delayed_failover_for_SCCP_phones
Regards,
Mohit Singh
02-05-2014 09:07 AM
I have not seen this myself. By default phones operating in SRST mode should need to be told when to register with the primary server in the CUCM Group. The phone itself will send keep alives. By default a phone will wait 120 seconds before attempting to re-establish it connection. This time of course could be longer With that being said recheck your srst configuration. Also maybe check your gateway configuration. There are 3 switch modes that a gateway operating in SRST mode will use, immediate, graceful, or switchback after delay.
02-05-2014 09:51 AM
Hi Greg-
thank you for your reply.
1. Quick clarification "
By default phones operating in SRST mode should need to be told when..." Do you mean should or should not?
2. I can confirm that the timing under DP is 120 seconds.
3. I apologize, but how do I check what mode the gateway is in? I do not see anything under show run. Btw- this is an h323 gateway, not Mgcp. Dont know if that makes a difference...
This is my srst config:
call-manager-fallback
secondary-dialtone 9
max-conferences 8 gain -6
transfer-system full-consult
ip source-address 7.188.200.4 port 2000
max-ephones 100
max-dn 100 dual-line
system message primary SRST Mode Active
Thanks again for responding.
02-05-2014 10:04 AM
1. You will shoud not need to tell the phones to re-register. Sorry for mistake.
2. Switchback only applies to MGCP here.
02-05-2014 10:16 AM
Can you please simulate SRST again and post the output of the following debugs..
1. debug ephone detail
2. debug ephone keepalive mac-address 0030.94c3.E1A8 (change the mac address to any of the phone that you have...
Please rate all useful posts
"The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
02-05-2014 10:52 AM
Hi...I feel really really stupid askig this, but how do I upload my debug capture? I dont see any options to attach a file here. I tried uploading it under document, but am unsure of how to link to this post. Apologies for this- this is my first time using this forum.
02-05-2014 10:54 AM
I hope this will be ok. I turned on debug for 2 specific phones. One in the beginning and the other at the end and let it run. Please let me know if you see anything. Currenlty these phones are in SRST mode, but the link to CM is up and running. Some phones have registered, but the below are still in SRST mode. Under the network config page of the phone itself, it shows the router as active cm and the servers as standby.
=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2014.02.05 12:32:56 =~=~=~=~=~=~=~=~=~=~=~=
debug ephone keepalive mac-address 70105C5F8E34 :8E34 :5C5F:8E34 5C5F:8E34 .5C5F:8E34 5C5F:8 8E34 8E34 8E34 8E34 8E34 8E34 8E34 8E34 8E34 8E34 8E34 8E34
NEU-VOICE-BUE-GW01#debug ephone keepalive mac-address 7010.5C5F.8E34
EPHONE keepalive debugging is enabled for phone 7010.5C5F.8E34
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#ter mon
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#debug ephone detal il
This may severely impact system performance. Continue? [confirm]
EPHONE detail debugging is enabled (detail, state, registration, video, error)
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#s clear
001015: *Feb 5 18:29:41.679: ephone-7 If GigabitEthernet0/0.600 ETHERNET 7.188.200.20 via ARP
001016: *Feb 5 18:29:41.679: ephone-7[6/9][SEP70105C5F8E34]:Keepalive socket[9] SEP70105C5F8E34 log
Clear logging buffer [confirm]
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
001017: *Feb 5 18:29:43.663: ephone-12 If GigabitEthernet0/0.600 ETHERNET 7.188.200.33 via ARP
001018: *Feb 5 18:29:43.663: ephone-12[11/19][SEP70105C5E20D6]:Keepalive socket[19] SEP70105C5E20D6
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
001019: *Feb 5 18:29:45.339: ephone-15 If GigabitEthernet0/0.600 ETHERNET 7.188.200.24 via ARP
001020: *Feb 5 18:29:45.339: ephone-15[14/1][SEP70105C5F64AC]:Keepalive socket[1] SEP70105C5F64AC
001021: *Feb 5 18:29:49.951: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001022: *Feb 5 18:29:49.951: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001023: *Feb 5 18:29:54.211: ephone-6[5/11][SEP70105C5F8F11]:SkinnyCheckPendingCallBackPhone scan 2 lines
001024: *Feb 5 18:29:54.211: ephone-7[6/9][SEP70105C5F8E34]:SkinnyCheckPendingCallBackPhone scan 2 lines
001025: *Feb 5 18:29:54.211: ephone-12[11/19][SEP70105C5E20D6]:SkinnyCheckPendingCallBackPhone scan 2 lines
001026: *Feb 5 18:29:54.211: ephone-14[13/10][SEP08CC6830582B]:SkinnyCheckPendingCallBackPhone scan 2 lines
001027: *Feb 5 18:29:54.211: ephone-15[14/1][SEP70105C5F64AC]:SkinnyCheckPendingCallBackPhone scan 2 lines
001028: *Feb 5 18:29:54.415: ephone-14 If GigabitEthernet0/0.600 ETHERNET 7.188.200.26 via ARP
001029: *Feb 5 18:29:54.415: ephone-14[13/10][SEP08CC6830582B]:Keepalive socket[10] SEP08CC6830582B
001030: *Feb 5 18:30:11.731: ephone-7 If GigabitEthernet0/0.600 ETHERNET 7.188.200.20 via ARP
001031: *Feb 5 18:30:11.731: ephone-7[6/9][SEP70105C5F8E34]:Keepalive socket[9] SEP70105C5F8E34
001032: *Feb 5 18:30:13.715: ephone-12 If GigabitEthernet0/0.600 ETHERNET 7.188.200.33 via ARP
001033: *Feb 5 18:30:13.715: ephone-12[11/19][SEP70105C5E20D6]:Keepalive socket[19] SEP70105C5E20D6
001034: *Feb 5 18:30:15.391: ephone-15 If GigabitEthernet0/0.600 ETHERNET 7.188.200.24 via ARP
001035: *Feb 5 18:30:15.391: ephone-15[14/1][SEP70105C5F64AC]:Keepalive socket[1] SEP70105C5F64AC
001036: *Feb 5 18:30:20.023: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001037: *Feb 5 18:30:20.023: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001038: *Feb 5 18:30:24.211: Skinny Checking for stale sockets
001039: *Feb 5 18:30:24.211: ephone-6[5/11][SEP70105C5F8F11]:SkinnyCheckPendingCallBackPhone scan 2 lines
001040: *Feb 5 18:30:24.211: ephone-7[6/9][SEP70105C5F8E34]:SkinnyCheckPendingCallBackPhone scan 2 lines
001041: *Feb 5 18:30:24.211: ephone-12[11/19][SEP70105C5E20D6]:SkinnyCheckPendingCallBackPhone scan 2 lines
001042: *Feb 5 18:30:24.211: ephone-14[13/10][SEP08CC6830582B]:SkinnyCheckPendingCallBackPhone scan 2 lines
001043: *Feb 5 18:30:24.211: ephone-15[14/1][SEP70105C5F64AC]:SkinnyCheckPendingCallBackPhone scan 2 lines
001044: *Feb 5 18:30:24.507: ephone-14 If GigabitEthernet0/0.600 ETHERNET 7.188.200.26 via ARP
001045: *Feb 5 18:30:24.507: ephone-14[13/10][SEP08CC6830582B]:Keepalive socket[10] SEP08CC6830582B
001046: *Feb 5 18:30:41.771: ephone-7 If GigabitEthernet0/0.600 ETHERNET 7.188.200.20 via ARP
001047: *Feb 5 18:30:41.771: ephone-7[6/9][SEP70105C5F8E34]:Keepalive socket[9] SEP70105C5F8E34
001048: *Feb 5 18:30:43.787: ephone-12 If GigabitEthernet0/0.600 ETHERNET 7.188.200.33 via ARP
001049: *Feb 5 18:30:43.787: ephone-12[11/19][SEP70105C5E20D6]:Keepalive socket[19] SEP70105C5E20D6
001050: *Feb 5 18:30:45.459: ephone-15 If GigabitEthernet0/0.600 ETHERNET 7.188.200.24 via ARP
001051: *Feb 5 18:30:45.459: ephone-15[14/1][SEP70105C5F64AC]:Keepalive socket[1] SEP70105C5F64AC
001052: *Feb 5 18:30:50.075: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001053: *Feb 5 18:30:50.075: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001054: *Feb 5 18:30:54.211: ephone-6[5/11][SEP70105C5F8F11]:SkinnyCheckPendingCallBackPhone scan 2 lines
001055: *Feb 5 18:30:54.211: ephone-7[6/9][SEP70105C5F8E34]:SkinnyCheckPendingCallBackPhone scan 2 lines
001056: *Feb 5 18:30:54.211: ephone-12[11/19][SEP70105C5E20D6]:SkinnyCheckPendingCallBackPhone scan 2 lines
001057: *Feb 5 18:30:54.211: ephone-14[13/10][SEP08CC6830582B]:SkinnyCheckPendingCallBackPhone scan 2 lines
001058: *Feb 5 18:30:54.211: ephone-15[14/1][SEP70105C5F64AC]:SkinnyCheckPendingCallBackPhone scan 2 lines
001059: *Feb 5 18:30:54.567: ephone-14 If GigabitEthernet0/0.600 ETHERNET 7.188.200.26 via ARP
001060: *Feb 5 18:30:54.567: ephone-14[13/10][SEP08CC6830582B]:Keepalive socket[10] SEP08CC6830582B
001061: *Feb 5 18:30:57.671: New Skinny socket accepted [1] from 0, sub 1 (5 active)
001062: *Feb 5 18:30:57.671: sin_family 2, sin_port 49668, in_addr 7.188.200.37
001063: *Feb 5 18:30:57.671: skinny_add_socket 1 7.188.200.37 49668
001064: *Feb 5 18:31:11.823: ephone-7 If GigabitEthernet0/0.600 ETHERNET 7.188.200.20 via ARP
001065: *Feb 5 18:31:11.823: ephone-7[6/9][SEP70105C5F8E34]:Keepalive socket[9] SEP70105C5F8E34
001066: *Feb 5 18:31:13.839: ephone-12 If GigabitEthernet0/0.600 ETHERNET 7.188.200.33 via ARP
001067: *Feb 5 18:31:13.839: ephone-12[11/19][SEP70105C5E20D6]:Keepalive socket[19] SEP70105C5E20D6
001068: *Feb 5 18:31:15.551: ephone-15 If GigabitEthernet0/0.600 ETHERNET 7.188.200.24 via ARP
001069: *Feb 5 18:31:15.551: ephone-15[14/1][SEP70105C5F64AC]:Keepalive socket[1] SEP70105C5F64AC
001070: *Feb 5 18:31:20.119: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001071: *Feb 5 18:31:20.119: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001072: *Feb 5 18:31:24.211: ephone-6[5/11][SEP70105C5F8F11]:SkinnyCheckPendingCallBackPhone scan 2 lines
001073: *Feb 5 18:31:24.211: ephone-7[6/9][SEP70105C5F8E34]:SkinnyCheckPendingCallBackPhone scan 2 lines
001074: *Feb 5 18:31:24.211: ephone-12[11/19][SEP70105C5E20D6]:SkinnyCheckPendingCallBackPhone scan 2 lines
001075: *Feb 5 18:31:24.211: ephone-14[13/10][SEP08CC6830582B]:SkinnyCheckPendingCallBackPhone scan 2 lines
001076: *Feb 5 18:31:24.211: ephone-15[14/1][SEP70105C5F64AC]:SkinnyCheckPendingCallBackPhone scan 2 lines
001077: *Feb 5 18:31:24.631: ephone-14 If GigabitEthernet0/0.600 ETHERNET 7.188.200.26 via ARP
001078: *Feb 5 18:31:24.631: ephone-14[13/10][SEP08CC6830582B]:Keepalive socket[10] SEP08CC6830582B
001079: *Feb 5 18:31:41.867: ephone-7 If GigabitEthernet0/0.600 ETHERNET 7.188.200.20 via ARP
001080: *Feb 5 18:31:41.867: ephone-7[6/9][SEP70105C5F8E34]:Keepalive socket[9] SEP70105C5F8E34
001081: *Feb 5 18:31:43.899: ephone-12 If GigabitEthernet0/0.600 ETHERNET 7.188.200.33 via ARP
001082: *Feb 5 18:31:43.899: ephone-12[11/19][SEP70105C5E20D6]:Keepalive socket[19] SEP70105C5E20D6
001083: *Feb 5 18:31:45.623: ephone-15 If GigabitEthernet0/0.600 ETHERNET 7.188.200.24 via ARP
001084: *Feb 5 18:31:45.623: ephone-15[14/1][SEP70105C5F64AC]:Keepalive socket[1] SEP70105C5F64AC
001085: *Feb 5 18:31:50.199: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001086: *Feb 5 18:31:50.199: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001087: *Feb 5 18:31:54.211: ephone-6[5/11][SEP70105C5F8F11]:SkinnyCheckPendingCallBackPhone scan 2 lines
001088: *Feb 5 18:31:54.211: ephone-7[6/9][SEP70105C5F8E34]:SkinnyCheckPendingCallBackPhone scan 2 lines
001089: *Feb 5 18:31:54.211: ephone-12[11/19][SEP70105C5E20D6]:SkinnyCheckPendingCallBackPhone scan 2 lines
001090: *Feb 5 18:31:54.211: ephone-14[13/10][SEP08CC6830582B]:SkinnyCheckPendingCallBackPhone scan 2 lines
001091: *Feb 5 18:31:54.211: ephone-15[14/1][SEP70105C5F64AC]:SkinnyCheckPendingCallBackPhone scan 2 lines
001092: *Feb 5 18:31:54.683: ephone-14 If GigabitEthernet0/0.600 ETHERNET 7.188.200.26 via ARP
001093: *Feb 5 18:31:54.683: ephone-14[13/10][SEP08CC6830582B]:Keepalive socket[10] SEP08CC6830582B
001094: *Feb 5 18:31:57.775: Cannot find device entry on socket fd 2 for message 0
001095: *Feb 5 18:32:11.955: ephone-7 If GigabitEthernet0/0.600 ETHERNET 7.188.200.20 via ARP
001096: *Feb 5 18:32:11.955: ephone-7[6/9][SEP70105C5F8E34]:Keepalive socket[9] SEP70105C5F8E34
001097: *Feb 5 18:32:13.991: ephone-12 If GigabitEthernet0/0.600 ETHERNET 7.188.200.33 via ARP
001098: *Feb 5 18:32:13.991: ephone-12[11/19][SEP70105C5E20D6]:Keepalive socket[19] SEP70105C5E20D6
001099: *Feb 5 18:32:15.695: ephone-15 If GigabitEthernet0/0.600 ETHERNET 7.188.200.24 via ARP
001100: *Feb 5 18:32:15.695: ephone-15[14/1][SEP70105C5F64AC]:Keepalive socket[1] SEP70105C5F64AC
001101: *Feb 5 18:32:20.271: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001102: *Feb 5 18:32:20.271: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001103: *Feb 5 18:32:24.211: ephone-6[5/11][SEP70105C5F8F11]:SkinnyCheckPendingCallBackPhone scan 2 lines
001104: *Feb 5 18:32:24.211: ephone-7[6/9][SEP70105C5F8E34]:SkinnyCheckPendingCallBackPhone scan 2 lines
001105: *Feb 5 18:32:24.211: ephone-12[11/19][SEP70105C5E20D6]:SkinnyCheckPendingCallBackPhone scan 2 lines
001106: *Feb 5 18:32:24.211: ephone-14[13/10][SEP08CC6830582B]:SkinnyCheckPendingCallBackPhone scan 2 lines
001107: *Feb 5 18:32:24.211: ephone-15[14/1][SEP70105C5F64AC]:SkinnyCheckPendingCallBackPhone scan 2 lines
001108: *Feb 5 18:32:24.731: ephone-14 If GigabitEthernet0/0.600 ETHERNET 7.188.200.26 via ARP
001109: *Feb 5 18:32:24.731: ephone-14[13/10][SEP08CC6830582B]:Keepalive socket[10] SEP08CC6830582B
001110: *Feb 5 18:32:28.039: socket 2 fatal error 254! can't read msg header with size -1, fd 2
001111: *Feb 5 18:32:28.039: it's a stale socket! delete it!!
001112: *Feb 5 18:32:41.999: ephone-7 If GigabitEthernet0/0.600 ETHERNET 7.188.200.20 via ARP
001113: *Feb 5 18:32:41.999: ephone-7[6/9][SEP70105C5F8E34]:Keepalive socket[9] SEP70105C5F8E34
001114: *Feb 5 18:32:44.115: ephone-12 If GigabitEthernet0/0.600 ETHERNET 7.188.200.33 via ARP
001115: *Feb 5 18:32:44.115: ephone-12[11/19][SEP70105C5E20D6]:Keepalive socket[19] SEP70105C5E20D6
001116: *Feb 5 18:32:45.747: ephone-15 If GigabitEthernet0/0.600 ETHERNET 7.188.200.24 via ARP
001117: *Feb 5 18:32:45.747: ephone-15[14/1][SEP70105C5F64AC]:Keepalive socket[1] SEP70105C5F64AC
001118: *Feb 5 18:32:50.331: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001119: *Feb 5 18:32:50.331: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001120: *Feb 5 18:32:54.211: Skinny Checking for stale sockets
001121: *Feb 5 18:32:54.211: ephone-6[5/11][SEP70105C5F8F11]:SkinnyCheckPendingCallBackPhone scan 2 lines
001122: *Feb 5 18:32:54.211: ephone-7[6/9][SEP70105C5F8E34]:SkinnyCheckPendingCallBackPhone scan 2 lines
001123: *Feb 5 18:32:54.211: ephone-12[11/19][SEP70105C5E20D6]:SkinnyCheckPendingCallBackPhone scan 2 lines
001124: *Feb 5 18:32:54.211: ephone-14[13/10][SEP08CC6830582B]:SkinnyCheckPendingCallBackPhone scan 2 lines
001125: *Feb 5 18:32:54.211: ephone-15[14/1][SEP70105C5F64AC]:SkinnyCheckPendingCallBackPhone scan 2 lines
001126: *Feb 5 18:32:54.811: ephone-14 If GigabitEthernet0/0.600 ETHERNET 7.188.200.26 via ARP
001127: *Feb 5 18:32:54.811: ephone-14[13/10][SEP08CC6830582B]:Keepalive socket[10] SEP08CC6830582B
001128: *Feb 5 18:33:12.047: ephone-7 If GigabitEthernet0/0.600 ETHERNET 7.188.200.20 via ARP
001129: *Feb 5 18:33:12.051: ephone-7[6/9][SEP70105C5F8E34]:Keepalive socket[9] SEP70105C5F8E34
001130: *Feb 5 18:33:14.175: ephone-12 If GigabitEthernet0/0.600 ETHERNET 7.188.200.33 via ARP
001131: *Feb 5 18:33:14.175: ephone-12[11/19][SEP70105C5E20D6]:Keepalive socket[19] SEP70105C5E20D6
001132: *Feb 5 18:33:15.827: ephone-15 If GigabitEthernet0/0.600 ETHERNET 7.188.200.24 via ARP
001133: *Feb 5 18:33:15.827: ephone-15[14/1][SEP70105C5F64AC]:Keepalive socket[1] SEP70105C5F64AC
001134: *Feb 5 18:33:20.383: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001135: *Feb 5 18:33:20.383: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001136: *Feb 5 18:33:24.211: ephone-6[5/11][SEP70105C5F8F11]:SkinnyCheckPendingCallBackPhone scan 2 lines
001137: *Feb 5 18:33:24.211: ephone-7[6/9][SEP70105C5F8E34]:SkinnyCheckPendingCallBackPhone scan 2 lines
001138: *Feb 5 18:33:24.211: ephone-12[11/19][SEP70105C5E20D6]:SkinnyCheckPendingCallBackPhone scan 2 lines
001139: *Feb 5 18:33:24.211: ephone-14[13/10][SEP08CC6830582B]:SkinnyCheckPendingCallBackPhone scan 2 lines
001140: *Feb 5 18:33:24.211: ephone-15[14/1][SEP70105C5F64AC]:SkinnyCheckPendingCallBackPhone scan 2 lines
001141: *Feb 5 18:33:24.895: ephone-14 If GigabitEthernet0/0.600 ETHERNET 7.188.200.26 via ARP
001142: *Feb 5 18:33:24.895: ephone-14[13/10][SEP08CC6830582B]:Keepalive socket[10] SEP08CC6830582B
001143: *Feb 5 18:33:42.099: ephone-7 If GigabitEthernet0/0.600 ETHERNET 7.188.200.20 via ARP
001144: *Feb 5 18:33:42.099: ephone-7[6/9][SEP70105C5F8E34]:Keepalive socket[9] SEP70105C5F8E34
001145: *Feb 5 18:33:44.235: ephone-12 If GigabitEthernet0/0.600 ETHERNET 7.188.200.33 via ARP
001146: *Feb 5 18:33:44.235: ephone-12[11/19][SEP70105C5E20D6]:Keepalive socket[19] SEP70105C5E20D6
001147: *Feb 5 18:33:45.907: ephone-15 If GigabitEthernet0/0.600 ETHERNET 7.188.200.24 via ARP
001148: *Feb 5 18:33:45.907: ephone-15[14/1][SEP70105C5F64AC]:Keepalive socket[1] SEP70105C5F64AC
001149: *Feb 5 18:33:50.443: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001150: *Feb 5 18:33:50.443: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001151: *Feb 5 18:33:54.211: ephone-6[5/11][SEP70105C5F8F11]:SkinnyCheckPendingCallBackPhone scan 2 lines
001152: *Feb 5 18:33:54.211: ephone-7[6/9][SEP70105C5F8E34]:SkinnyCheckPendingCallBackPhone scan 2 lines
001153: *Feb 5 18:33:54.211: ephone-12[11/19][SEP70105C5E20D6]:SkinnyCheckPendingCallBackPhone scan 2 lines
001154: *Feb 5 18:33:54.211: ephone-14[13/10][SEP08CC6830582B]:SkinnyCheckPendingCallBackPhone scan 2 lines
001155: *Feb 5 18:33:54.211: ephone-15[14/1][SEP70105C5F64AC]:SkinnyCheckPendingCallBackPhone scan 2 lines
001156: *Feb 5 18:33:54.967: ephone-14 If GigabitEthernet0/0.600 ETHERNET 7.188.200.26 via ARP
001157: *Feb 5 18:33:54.967: ephone-14[13/10][SEP08CC6830582B]:Keepalive socket[10] SEP08CC6830582B
001158: *Feb 5 18:34:12.143: ephone-7 If GigabitEthernet0/0.600 ETHERNET 7.188.200.20 via ARP
001159: *Feb 5 18:34:12.143: ephone-7[6/9][SEP70105C5F8E34]:Keepalive socket[9] SEP70105C5F8E34
001160: *Feb 5 18:34:14.287: ephone-12 If GigabitEthernet0/0.600 ETHERNET 7.188.200.33 via ARP
001161: *Feb 5 18:34:14.287: ephone-12[11/19][SEP70105C5E20D6]:Keepalive socket[19] SEP70105C5E20D6
001162: *Feb 5 18:34:15.971: ephone-15 If GigabitEthernet0/0.600 ETHERNET 7.188.200.24 via ARP
001163: *Feb 5 18:34:15.971: ephone-15[14/1][SEP70105C5F64AC]:Keepalive socket[1] SEP70105C5F64AC
001164: *Feb 5 18:34:20.527: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001165: *Feb 5 18:34:20.527: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001166: *Feb 5 18:34:24.211: ephone-6[5/11][SEP70105C5F8F11]:SkinnyCheckPendingCallBackPhone scan 2 lines
001167: *Feb 5 18:34:24.211: ephone-7[6/9][SEP70105C5F8E34]:SkinnyCheckPendingCallBackPhone scan 2 lines
001168: *Feb 5 18:34:24.211: ephone-12[11/19][SEP70105C5E20D6]:SkinnyCheckPendingCallBackPhone scan 2 lines
001169: *Feb 5 18:34:24.211: ephone-14[13/10][SEP08CC6830582B]:SkinnyCheckPendingCallBackPhone scan 2 lines
001170: *Feb 5 18:34:24.211: ephone-15[14/1][SEP70105C5F64AC]:SkinnyCheckPendingCallBackPhone scan 2 lines
001171: *Feb 5 18:34:25.015: ephone-14 If GigabitEthernet0/0.600 ETHERNET 7.188.200.26 via ARP
001172: *Feb 5 18:34:25.015: ephone-14[13/10][SEP08CC6830582B]:Keepalive socket[10] SEP08CC6830582B in all
^
% Invalid input detected at '^' marker.
NEU-VOICE-BUE-GW01#un all
All possible debugging has been turned off
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#debuig g ephone kee
NEU-VOICE-BUE-GW01#debug ephone keepalive 70105C5F8F11 .8F11 .5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 5C5F.8F11 sh ephone | i 8F11
ephone-6[5] Mac:7010.5C5F.8F11 TCP socket:[11] activeLine:0 whisperLine:0 REGISTERED in SCCP ver 22/17 max_streams=5
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#debug ephone kee
NEU-VOICE-BUE-GW01#debug ephone keepalive 7010.5C5F.8F11
^
% Invalid input detected at '^' marker.
NEU-VOICE-BUE-GW01#debug ephone keepalive 7010.5C5F.8F11 ive 7010.5C5F.8F11 m 7010.5C5F.8F11 a 7010.5C5F.8F11 c 7010.5C5F.8F11 - 7010.5C5F.8F11 a 7010.5C5F.8F11
NEU-VOICE-BUE-GW01#debug ephone keepalive mac-a 7010.5C5F.8F11
EPHONE keepalive debugging is enabled for phone 7010.5C5F.8F11
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
001173: *Feb 5 18:36:50.863: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001174: *Feb 5 18:36:50.863: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001175: *Feb 5 18:37:20.935: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001176: *Feb 5 18:37:20.935: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001177: *Feb 5 18:37:50.995: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001178: *Feb 5 18:37:50.995: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001179: *Feb 5 18:37:54.211: Skinny Checking for stale sockets
001180: *Feb 5 18:38:21.059: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001181: *Feb 5 18:38:21.059: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11
001182: *Feb 5 18:38:51.111: ephone-6 If GigabitEthernet0/0.600 ETHERNET 7.188.200.35 via ARP
001183: *Feb 5 18:38:51.111: ephone-6[5/11][SEP70105C5F8F11]:Keepalive socket[11] SEP70105C5F8F11 un all
All possible debugging has been turned off
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
NEU-VOICE-BUE-GW01#
02-05-2014 10:57 AM
Have you altered the "h225 timeouts tcp establish" setting under the "voice class h323"?
HTH
Regards,
Yosh
02-05-2014 11:06 AM
It is:
h225 timeout tcp establish 3
Thanks.
02-05-2014 11:07 AM
OK, I dont see what I want or looking for..
Do you know how to use wireshark? collect wire shark trace..attach here?
Please rate all useful posts
"The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
02-05-2014 12:48 PM
Hi.
Which firmware version are ip phones running?
...and which CUCM version?
Let us know.
Regards
Carlo
Please rate all helpful posts
"The more you help the more you learn"
02-06-2014 06:01 AM
Hi Mihir,
In SRST mode IP phones keeps on sending TCP keepalive message to CUCM every 30 second. If a response from CUCM is received then IP phone tries to register back to CUCM. So if IP phone are not registering back to CUCM then you should take packet capture from IP phone and CUCM and check whether TCP keepalive is received by CUCM or not. If not then there could be some issue with network. If IP phone is not sending keepalive while registered with SRST router then there could be issue with phone firmware.
Regards,
Mohit Singh
02-10-2014 06:46 AM
Ok, I have the wireshark captures. How do I attach them to this thread? I see the phone sending keepalives to both the Call Managers (pub + sub and the srst router...I think).
02-10-2014 06:51 AM
You can use advanced editor option to upload files. Please mention ip address of phone, pub and sub.
Regards,
Mohit Singh
02-10-2014 07:05 AM
Ok, uploaded.
Phone IP is 7.188.200.51
SRST Router: 7.188.200.4
Pub: 10.2.200.6
Sub: 10.2.200.7
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