Hi Doug, I was told by TAC that it wasn't possible to change it from CET, but you might want to open a case to double-check. Otherwise, it wasn't too painful to use the documented procedures for changing the hostname. Remember to update your certificates and DNS records. Good luck! Brad
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We have struggled with an issue for more than a year related to HA over WAN. Even a brief network outage (1-2 seconds) between data centers would cause the master role to switch from the publisher to the subscriber. Mastership changed any time the nodes went into island mode. We finally found the root cause after numerous TAC cases, and I think it's worth sharing since changing the hostnames is supported.
The logic to elect the master node when recovering from island mode is:
Step 1. Check the service status of the nodes. If node 1 is IN_SERVICE and node 2 is in PARTIAL_SERVICE, node 1 becomes the master. If the states are the same (IN_SERVICE or PARTIAL_SERVICE), go to step 2.
Step 2. The hardware specification of both nodes will be checked. The server with the better specification will be handed the mastership. If the hardware specifications are the same, go to step 3.
Step 3. The publisher (i.e. node 1) will become the master if the hostname matches the PrimaryEngineComputerName in the ClusterSpecificConfig. If there is no match, go to step 4.
Step 4. Make the subscriber master.
Alright, now let's back up about 18 months. We decided to build a new cluster to migrate from version 9.0 to 10.6. The intent was to simplify the transition from CAD to Finesse. We built a new cluster on 9.0, restored from backup, changed the hostnames and IPs, and then upgraded to 10.6.
Back to the present (now on version 11.6), we finally lucked out with a TAC engineer that explained the island mode recovery process above. The engineer used the CET (Configuration Editor Tool) to check the ClusterSpecificConfig file where we discovered the primaryEngineComputerName was the hostname of our 9.0 publisher. So now we know step 3 above always fails and the subscriber is elected master as a result.
TAC advised this value is populated at the time of install and cannot be changed (even with root access). The 9.0 cluster had been offline for over a year. Therefore, the best solution was to rename the 11.6 publisher to match the primaryEngineComputerName.
In conclusion, changing the hostname is supported, but it will cause issues with HA. Ideally, the set network hostname command should be updated to also change the primaryEngineComputerName. I asked to have a caveat added to the appropriate section of the admin guide. It's unclear if this request reached the technical writing team – I never received confirmation.
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We have had a few issues with 18.104.22.168 crashing on Win 10 64-bit. TAC reviewed the logs and determined we were hitting these bugs:
CSCvc46415 – CIPC intermittent crash during use with version 8.6.6 in Windows 10. CSCve25545 – CIPC crash in GIPS audio thread.
They supplied version 22.214.171.124 and we haven't had any issues since.
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We're using UCCX version 10.6(1) with Finesse as the desktop. We want to make "work" state optional. Is this possible? We have tested a few scenarios and found that the only way to enter wrap-up/work state is to configure the CSQ by enabling automatic work. Has anyone left this disabled and still provided the option to enter wrap-up state? Cisco Unified CCX Administration Guide, Release 10.6
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Thank you for the suggestion, Manish. I tried 8-4-2S instead, but the phone is still stuck even after performing the factory-reset procedure. Perhaps the phone is bricked at this point.
Thanks again for taking the time to respond. Much appreciated!
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Purchased a used 7962 from eBay and it wouldn't upgrade/register, so I performed factory reset procedure and now the phone is stuck in Upgrading status. This is true even if I disconnect from the network and plug it in with a power cube. Seller was kind enough to send another phone, and same result. Maybe one of the firmware files is corrupt, but I don't have the md5 hash to confirm. I've browsed the forum and tried suggestions in the Cisco 7942 Stuck upgrading thread.
So I'm starting this discussion in case anyone has a solution. Thanks to anyone who takes the time to have a look.
IOS version 15.1(4)M5
CUCME version 8.6
Phone firmware SCCP42.8-5-4S
013188: Jun 7 22:18:19.539: %SYS-5-CONFIG_I: Configured from console by admin on vty0 013189: Jun 7 22:19:32.233: TFTP: Looking for term62.default.loads 013190: Jun 7 22:19:32.237: TFTP: Opened flash:/phones/7942_7962/term62.default.loads, fd 0, size 674 for process 349 013191: Jun 7 22:19:32.245: TFTP: Finished flash:/phones/7942_7962/term62.default.loads, time 00:00:00 for process 349 013192: Jun 7 22:19:36.805: TFTP: Server request for port 50900, socket_id 0x8AFB43D4 for process 349 013193: Jun 7 22:19:36.805: TFTP: read request from host 10.1.1.32(50900) via Vlan100 013194: Jun 7 22:19:36.805: TFTP: Looking for term62.default.loads 013195: Jun 7 22:19:36.809: TFTP: Opened flash:/phones/7942_7962/term62.default.loads, fd 0, size 674 for process 349 013196: Jun 7 22:19:36.813: TFTP: Sending block 1 (retry 0), socket_id 0x8AFB43D4 013197: Jun 7 22:19:36.813: TFTP: Received ACK for block 1, socket_id 0x8AFB43D4 013198: Jun 7 22:19:36.813: TFTP: Sending block 2 (retry 0), socket_id 0x8AFB43D4 013199: Jun 7 22:19:36.817: TFTP: Received ACK for block 2, socket_id 0x8AFB43D4 013200: Jun 7 22:19:36.817: TFTP: Finished flash:/phones/7942_7962/term62.default.loads, time 00:00:00 for process 349 013201: Jun 7 22:19:45.877: %SYS-5-CONFIG_I: Configured from console by admin on vty0
UC520#show telephony-service CONFIG (Version=8.6) ===================== Version 8.6 Max phoneload sccp version 17 Max dspfarm sccp version 18 Cisco Unified Communications Manager Express For on-line documentation please see: http://www.cisco.com/en/US/products/sw/voicesw/ps4625/tsd_products_support_series_home.html
protocol mode default ip source-address 10.1.1.1 port 2000 ip qos dscp: ef (the MS 6 bits, 46, in ToS, 0xB8) for media cs3 (the MS 6 bits, 24, in ToS, 0x60) for signal af41 (the MS 6 bits, 34, in ToS, 0x88) for video default (the MS 6 bits, 0, in ToS, 0x0) for serviceservice directed-pickup service dnis overlay service dnis dir-lookup service dss load 7915-12 B015-1-0-4 load 7911 SCCP11.8-5-4S load 7961 SCCP41.8-5-4S load 7962 SCCP42.8-5-4S max-ephones 20 max-dn 56 max-conferences 8 gain -6 dspfarm units 0 dspfarm transcode sessions 0 conference software privacy no privacy-on-hold hunt-group report delay 1 hours Number of hunt-group configured: 2 hunt-group logout DND max-redirect 10 voicemail 399 cnf-file location: system: cnf-file option: PER-PHONE-TYPE network-locale US (This is the default network locale for this box) network-locale US network-locale US network-locale US network-locale US user-locale US (This is the default user locale for this box) user-locale US user-locale US user-locale US user-locale US srst mode auto-provision is OFF srst ephone template is 0 srst dn template is 0 srst dn line-mode single phone service ehookenable 1 moh flash:/media/music-on-hold_10db.au time-format 12 date-format mm-dd-yy timezone 8 Central Standard/Daylight Time secondary-dialtone 9 url services http://10.1.10.1/voiceview/common/login.do url authentication http://10.1.10.1/voiceview/authentication/authenticate.do call-forward pattern .T transfer-pattern 9.T transfer-pattern .T keepalive 30 auxiliary 4 timeout interdigit 5 timeout busy 10 timeout ringing 180 timeout transfer-recall 0 timeout ringin-callerid 8 timeout night-service-bell 12 caller-id name-only: enable system message The Weeks Group web admin system name Admin web admin customer name Customer edit DN through Web: enabled. edit TIME through web: enabled. background save interval 10 minutes Log (table parameters): max-size: 150 retain-timer: 15 create cnf-files version-stamp 7960 Jun 07 2016 17:13:45 transfer-system full-consult dss transfer-digit-collect new-call multicast moh 126.96.36.199 port 2000 auto assign 1 to 1 type bri fxo hook-flash local directory service: enabled. Extension-assigner tag-type ephone-tag.
UC520#show run | s tftp-server tftp-server flash:/phones/7906_7911/apps11.8-5-4TH1-6.sbn alias apps11.8-5-4TH1-6.sbn tftp-server flash:/phones/7906_7911/cnu11.8-5-4TH1-6.sbn alias cnu11.8-5-4TH1-6.sbn tftp-server flash:/phones/7906_7911/cvm11sccp.8-5-4TH1-6.sbn alias cvm11sccp.8-5-4TH1-6.sbn tftp-server flash:/phones/7906_7911/dsp11.8-5-4TH1-6.sbn alias dsp11.8-5-4TH1-6.sbn tftp-server flash:/phones/7906_7911/jar11sccp.8-5-4TH1-6.sbn alias jar11sccp.8-5-4TH1-6.sbn tftp-server flash:/phones/7906_7911/SCCP11.8-5-4S.loads alias SCCP11.8-5-4S.loads tftp-server flash:/phones/7906_7911/term06.default.loads alias term06.default.loads tftp-server flash:/phones/7906_7911/term11.default.loads alias term11.default.loads tftp-server flash:/phones/7915/B015-1-0-4.SBN alias B015-1-0-4.SBN tftp-server flash:/phones/7941_7961/apps41.8-5-4TH1-6.sbn alias apps41.8-5-4TH1-6.sbn tftp-server flash:/phones/7941_7961/cnu41.8-5-4TH1-6.sbn alias cnu41.8-5-4TH1-6.sbn tftp-server flash:/phones/7941_7961/cvm41sccp.8-5-4TH1-6.sbn alias cvm41sccp.8-5-4TH1-6.sbn tftp-server flash:/phones/7941_7961/dsp41.8-5-4TH1-6.sbn alias dsp41.8-5-4TH1-6.sbn tftp-server flash:/phones/7941_7961/jar41sccp.8-5-4TH1-6.sbn alias jar41sccp.8-5-4TH1-6.sbn tftp-server flash:/phones/7941_7961/SCCP41.8-5-4S.loads alias SCCP41.8-5-4S.loads tftp-server flash:/phones/7941_7961/term41.default.loads alias term41.default.loads tftp-server flash:/phones/7941_7961/term61.default.loads alias term61.default.loads tftp-server flash:/phones/7942_7962/apps42.8-5-4TH1-6.sbn alias apps42.8-5-4TH1-6.sbn tftp-server flash:/phones/7942_7962/cnu42.8-5-4TH1-6.sbn alias cnu42.8-5-4TH1-6.sbn tftp-server flash:/phones/7942_7962/cvm42sccp.8-5-4TH1-6.sbn alias cvm42sccp.8-5-4TH1-6.sbn tftp-server flash:/phones/7942_7962/dsp42.8-5-4TH1-6.sbn alias dsp42.8-5-4TH1-6.sbn tftp-server flash:/phones/7942_7962/jar42sccp.8-5-4TH1-6.sbn alias jar42sccp.8-5-4TH1-6.sbn tftp-server flash:/phones/7942_7962/SCCP42.8-5-4S.loads alias SCCP42.8-5-4S.loads tftp-server flash:/phones/7942_7962/term42.default.loads alias term42.default.loads tftp-server flash:/phones/7942_7962/term62.default.loads alias term62.default.loads
UC520#show run | s ephone 9 ephone 9 device-security-mode none description Receptionist mac-address 1C1D.86C4.E625 ephone-template 16 max-calls-per-button 2 paging-dn 47 type 7962 button 1:51
UC520#show run | s ephone-dn 51 ephone-dn 51 dual-line number 202 no-reg primary label Receptionist 202 description Receptionist name Receptionist call-forward busy 399 call-forward noan 399 timeout 20
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Thank you both for your suggestions. I have implemented and will allow a few days for the customer to test. The value of the support community cannot be overstated. It's as good, if not better, than TAC. Best regards, Brad
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Hi Kevin, I just want to make sure this won't have any negative impact on regular voice calls using this dial peer. Is it okay to have both fax and voice on the same dial peer? Thanks, Brad
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Thanks for the reply. I see what you're saying, Kevin. However, it looks to me like that is a register message. Look at line 738. It shows "200 OK" for call from fax machine to PSTN. Am I misinterpreting the debug? Does anything else catch your eye? Thanks again.
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