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…
Category: Unified Communication
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…
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…
Expressway DMI Interface
From 12.7, expressway support dedicate Management Interface(DMI). s. Instead of sharing a routing interface with other traffic, management traffic is sent and received through LAN3 and no other traffic uses that port.The DMI is disabled by default. Enabling DMI Enabling the DMI function . This switches the LAN3 Port for management Traffic. Still you can…
CIMC Upgrade
When I visited a customer, I found alarms on their UCS server. So For CIMC acces I contacted the current supplier who installed this sever. They said due to java error CIMC doesn’t work with latest browsers. So they didn’t configure the CIMC. That’s not a good practice. Always Configure CIMC and if it’s outdated…
Flex Provisioning
With flex license, you will be getting a Provisioning EMail. Even If you don’t activate the license within 30 days the billing will gets started automatically. Todays blog is about how to provision and starting a Webex messaging subscription. Open the email you received titled Provisioning information required for order…, and click Set Up Your…
Assign Missing Owner Id using DAT
70% of license warning messages I have seen at my customer sites are due to missing Owner-ID.A common question many of my friends asked, is there a tool to assign Owner-Id on devices. Yes Cisco provide a tool called, Device assignment Tool in short we call it DAT. The tool connects to your system and…
CRAZY NETWORKING 