Last month when configuring a PRI Assuming that its a MFT-T1/E1 card, i used “pri-group timeslots 1-31” . After a while i noticed there is no serial interface created. Later verifying the inventory i noticed that NIM card inserted was Voice/Channelized Data T1/E1 Module and not Voice/Clear-channel Data card. If you are using line cards…
Author: Nithin Eluvathingal
How to pull the install logs using the Recovery Disk
Gain access to command line and find location of install logs Mount Recovery Disk Reboot System and boot to Disk Press “Alt + F2” to get to the Command Prompt Type “df -h” to show the available partitions. The biggest partition should have the install logs. In this example, its part6. The install logs should…
Non Defined IMS Exception after upgrade
Last few weeks i was busy migrating multiple clusters across this region. Post migration couple of clusters throw me the message “Non Defined IMS Exception” when i enter the username and password. Its a Bug (CSCvp43563 ) which you need to work with TAC. Before you work Cisco TAC, follow the below steps and copy the…
CUCM & IMP migration failed during PCD Network Migration Task
Today when i was migrating a 10.5 UC cluster to 14 during the CUCM subscriber migration after network validation, i saw a warning message on the screen.. “Critical Error” “The installation has encountered a unrecoverable internal error. For further assistance report the following information to your support provider. Unrestricted string is empty The system will…
Motorola PBX and CUCM Integration 200 Ok Issue
Motorola PBX is complaint on SIP RFC 3581 and CUCM is complaint on SIP RFC 3261. Due to this RFC compliance issue there are issues with SIP call setup between both of the Call Processing Servers, that is, CUCM and Motorola PBX Motorola PBX has an “rport” parameter in the “Via” header field of the…
Webex Cohost
Two days back, my friend send us a meeting invite. Dues to some reason he was not available for the meetings and he didn’t assign a cohost. So participants where waiting at the lobby with no option to join the meeting. Whats a cohost I took the below lines from webex help Center . If…
The number of devices in a single Unified Communications VLAN
Yesterday a customer ask me if he can install a CUCM on a class B subnet which has 2046 IP address. The answer is … Thumb Rule A good rule of thumb is to limit the number of devices per VLAN to about 512, which is equivalent to two Class C subnets (that is, a…
Reason codes for LastOutOfServiceInformation
ReasonForOutOfService=10 — TCPtimedOut – The TCP connection to the Cisco Unified Communication Manager experienced a timeout error ReasonForOutOfService=12 — TCPucmResetConnection – The Cisco Unified Communication Manager reset the TCP connection ReasonForOutOfService=13 — TCPucmAbortedConnection – The Cisco Unified Communication Manager aborted the TCP connection ReasonForOutOfService=14 — TCPucmClosedConnection – The Cisco Unified Communication Manager closed the TCP…
ISE Upgrade Readiness Tool (URT)
Use the URT in order to detect and fix any configuration data upgrade issues before you start the upgrade process. Most of the upgrade failures occur because of configuration data upgrade issues. The URT validates the data before the upgrade in order to identify, and report or fix the issue, wherever possible. The URT is…
Use Slido for making your meeting interactive.
Last week during a meeting i found host struggling to collect answers to his questions.Host was using chat option for his Quiz. I thought of wiritng this blog to make my community aware about the Slido. Whats Slido Sldio is an easy to use Q& A and polling platform. How to get it. Its free…
CRAZY NETWORKING 