EEM optical transceiver power warnings

[bryan totten]

i am wanting a script that will generate a syslog message for both tx/rx transciever power warnings and alarms.  I would like to use the command "show inter transceiver" which generates output similiar to the output below (also see the attached output  file)

switch6504#show inter transceiver

port          temp          volts          current          optical tx power          optical rx power

Te3/7        34.1          0.00          41.8 --            -2.0 - -                          -5.1 -

Note: A single hyphen after number is a warning and a double hyphen is an alarm

I am wanting the EEM script to generate a syslog message for both the warning or alarm of tx/rx power.  Two different syslog messages:

1) syslog  = "$interface has an optical tx/rx power alarm"

2) syslog = "$interface  has an optical tx/rx power warning"

I am only concerned about tx/rx power.  I would like for the script to run every 30 minutes. If there is a warning/alarm on an interface to send a syslog once every 24hours while conditions are still met.

I have started the script (see attachment) and would appreciate any assistance.

thanks!!

[Joe Clarke · Accepted solution]

Give this one a try.

[bryan totten]

Joe,

thanks for your help!  question:  is this only looking at the last two columns of data in the show output command (only tx optical power and rx optical power)? 

thanks again!

[Joe Clarke]

No, it looks at the last three really.  It needs to in order to determine if we have a '-' or "--" for either tx or rx power.  It's probably not the prettiest, but I think it will work.

[bryan totten]

Joe,

i am reading the "tcl scripting for cisco ios"  book and using it to fully understand this script that you wrote.  Could please explain the catch commands like the one below:

if [catch {cli_open} result] {

   error $result $errorInfo

} else {

    array set cli1 $result

}

thanks!!

[Joe Clarke]

This opens the CLI session so that commands can be run on the device.  It essentially allocates a VTY for EEM to use.

[bryan totten]

Joe,

thanks for all your efforts.   its amazing the power of tcl script.

[mingchieh]

Hi Joseph

   If I need to get  transceiver Tx and Rx power , and transfer into a SNMP MIB , Then let SNMP base NMS to query value , How to do that ?

[Joe Clarke]

Please start a new thread on the community for this question.