topic RE: In Cisco switches, you can utilize terminal monitor to alert when a goes up or down. How can you enable this on Extreme switches? in ExtremeSwitching (EOS)

In Cisco switches, you can utilize terminal monitor to alert when a goes up or down. How can you enable this on Extreme switches?

Timothy_Clifton — Thu, 11 Jun 2015 02:11:00 GMT

Our organization has recently converted from Cisco to Extreme Networks Switches. In Cisco switches, you can utilize terminal monitor to view messages over telnet that alert when a link on a port goes up or down. How can you enable the same type of service on Extreme switches?

RE: In Cisco switches, you can utilize terminal monitor to alert when a goes up or down. How can you enable this on Extreme switches?

Bill_Stritzinge — Thu, 11 Jun 2015 02:17:00 GMT

Tim,

To enable live log to terminal.... Assume you are using XOS? "enable log display"

Bill

RE: In Cisco switches, you can utilize terminal monitor to alert when a goes up or down. How can you enable this on Extreme switches?

OscarK — Thu, 11 Jun 2015 12:21:00 GMT

Or in a telnet session, to do this only for this session, use the command:
enable log target session.

RE: In Cisco switches, you can utilize terminal monitor to alert when a goes up or down. How can you enable this on Extreme switches?

Timothy_Clifton — Thu, 11 Jun 2015 22:01:00 GMT

Neither of these commands seem to be working. My test device is a B5G124-48P2 switch.

We are utilizing SSH instead of telnet, so maybe this is the issue?

RE: In Cisco switches, you can utilize terminal monitor to alert when a goes up or down. How can you enable this on Extreme switches?

BrandonC — Thu, 11 Jun 2015 22:34:00 GMT

Hi Timothy,

These commands are both for EXOS. In EOS, I believe you can do this with the command:
set logging local console enableI believe this will only apply to the console port though, not the SSH session.

-Brandon

RE: In Cisco switches, you can utilize terminal monitor to alert when a goes up or down. How can you enable this on Extreme switches?

Timothy_Clifton — Thu, 11 Jun 2015 23:07:00 GMT

Yes, I was looking for logging that would report via SSH.

RE: In Cisco switches, you can utilize terminal monitor to alert when a goes up or down. How can you enable this on Extreme switches?

Paul_Poyant — Mon, 15 Jun 2015 18:12:00 GMT

You are seeking to "view messages over telnet that alert when a link on a port goes up or down", on the B5-Series.

code:

set logging default severity 7

code:

set logging application System level 7

code:

set logging local console enable file enable

...should in the output of a '

code:

show logging buffer

' yield messaging like this, visible via a Serial, Telnet, or SSH management session:

<

code:

Aug 22 05:24:00 10.1.1.1-1 TRAPMGR[145562672]: traputil.c(475) 527 % Link Up: Unit: 1 Slot: 0 Port: 1

code:

Aug 22 05:24:04 10.1.1.1-1 TRAPMGR[145562672]: traputil.c(475) 528 % Link Down: Unit: 1 Slot: 0 Port: 1

This feature was broken for a time in the 6.61 firmware line, but fixed again with f/w 6.61.08.0013+:
"

code:

Resolved an issue with link up/down messages not displaying on the local console.

"

But I suspect that you are looking for something that dynamically pops any logged messages into the management session when they occur. That feature is not currently supported on the SecureStacks for Telnet or SSH sessions. On the S/N/K/7100 Series, the command to toggle this feature on or off is '

code:

set logging here enable

code:

disable

' (disabled by default).

It's also worth noting that bumping the logging severity up to debug=7 on a permanent basis on the SecureStacks is not recommended, because over time it can be destabilizing to the stack. So, use as needed and then revert back to default logging levels when done.

RE: In Cisco switches, you can utilize terminal monitor to alert when a goes up or down. How can you enable this on Extreme switches?

Paul_Poyant — Sat, 20 Jun 2015 00:45:00 GMT

GTAC Knowledge articles:
https://gtacknowledge.extremenetworks.com/articles/How_To/SecureStack-Message-Generation-when-the-Port-Link-State-changes
https://gtacknowledge.extremenetworks.com/articles/How_To/Summit-Message-Generation-when-the-Port-Link-State-changes