GKhan

Switch cannot see other switches in a VSAN

Some time ISL trunk is up but unable to see VSAN from other MDS switch and you are getting Admin Domain ID mismatch.

Solution is

Either change the overlapping static domain ID by manually configuring a new static domain ID for the isolated switch, or disable the static domain assignment and allow the switch to request a new domain ID after a fabric reconfiguration.

For detailed troubleshooting 

How to change Cisco MDS Switch name
Go to config mode
switch# configure terminal
switch(config)# switchname  NewSwitchName

How to change Cisco MDS  Switch admin password
Go to configuration mode
switch# configure terminal
switch(config)# snmp-server user admin auth md5 your_new_password
for example
snmp-server user admin auth md5 ciscopassword

Remote Desktop Services not working

I was having an issue with windows 2008 server I enabled the Remote desktop but i was not able to connect the remote desktop firewall was off network connection was ok . even though i was not able to connect to remote desktop. i checked the telnet localhost 3389

it was not working .I found the below solution it works for me . Continue reading →

Break key is missing on my laptop keyboard and I have to use  key combination of Ctrl+Break  to reset cisco router password .

Go to search program On-Screen keyboard or type osk use the Pause key it will work as Break key.

Step by step how to reset cisco router password without loosing configuration.

1- reboot the router
2- Enter in to rom monitor mode by pressing Ctrl+Brek key (rommon 1>)
3- Change configreg to bypass to load startup config
rommon 2 > configreg 0x2142
4- Reset or reboot the router by
rommon 2 > reset Continue reading →