About Ng Tian Sheng

Ng Tian Sheng · 11-17-2015

Hi Experts, My customer has enabled AAA Authentication on all their switches, what they want to achieve is that whenever IT administrator remote access (Telnet/SSH) into these switches, they will need to use the TACACS+ credentials to access the swi...

Ng Tian Sheng · 07-20-2015

Hi All, I will carry out the CUCM firmware upgrade for my customer. There are 4 CUCM servers running in their environment (1 Publisher, 3 Subscribers). Out of these 3 Subscribers, there is one acts as TFTP Server. My customer has concern on the downt...

Ng Tian Sheng · 07-14-2015

Hi All, I plan to upgrade the existing Cisco 8961 SIP IP Phone firmware to a newer firmware version. I have downloaded the software from cisco.com, and already uploaded into CUCM via Unified OS Administration. After restarting TFTP Service, I can see...

Ng Tian Sheng · 07-07-2015

Hi All, My customer's current CUCM version is 9.1.2.10000-28, and they found out this version has OpenSSH LoginGraceTime Denial of Service vulnerability, so I decided to upgrade their current CUCM version to 9.1.2.13900-10. There are 1 CUCM Publishe...

Ng Tian Sheng · 04-16-2015

Hi All, I need help in setting up the phones communication (PLAR) between two different networks. I have Network A and Network B, both networks are totally separated networks and they do not have any connectivity between each other. What I want to do...

Ng Tian Sheng · 07-21-2015

Hi Ajith, Thanks for your reply. I am going to upgrade the CUCM from version 9.1.2.10000-28 to version 9.1.2.13900-10 What I want to know is that during the time I switch the Publisher to the newer version (I believe the Publisher will not available)...

Ng Tian Sheng · 07-15-2015

Hi Wilson, I have tried unplug and plug back the phone, but still the same.I deleted the phone in CUCM and recreated again, this time the phone registration get REJECTED and Download Status keeps in "Upgrading" Please refer to the attachment

Ng Tian Sheng · 07-14-2015

Hi Wilson, There are 1 Publisher (10.25.51.36), and 3 Subscribers (TFTP is 10.25.51.39)I have uploaded the new firmware in 10.25.51.39, restarted TFTP Service, change the load information to new firmware in Device Defaults Restarted the IP Phone, but...

Ng Tian Sheng · 07-07-2015

Thanks Wilson for the reply

Ng Tian Sheng · 07-07-2015

Hi Yosh, Thanks for your quick response, what about if I upgrade CUCM version 9.X to 10.X? Will the configuration lost after upgrade? Thanks.

Member Since	‎01-10-2014 03:07 AM
Date Last Visited	‎01-23-2019 12:05 AM
Posts	34

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AAA Authentication on Console and VTY

Firmware Upgrade on CUCM version 9.X

Cisco 8961 SIP IP Phone Firmware Upgrade Failed

CUCM Version 9.X Firmware Upgrade

Cisco PLAR between two different networks

Hi Ajith, Thanks for your

Hi Wilson, I have tried

Hi Wilson, There are 1

Thanks Wilson for the reply

Hi Yosh, Thanks for your