There are a couple different variants of telnet/console hanging. This is mainly when using telnet to connect to a serial port over network. In some cases the XR telnet is hung, and other cases it is the internal Serial to XR Console session.
There can be nested telnets:
Server SerialXR ConsoleXR telnet destination <— internal telnet--> <—------------------ telnet to XR Console—————> <—— XR telnet to XR connected destination —>
Escape Sequence List
The following are the escape sequences for the various telnets:
1) XR telnet escape:^^q = CTRL-SHIFT-6 followed by q 2) Serial to XR console escape:^q = CTRL-SHIFT-Q (CTRL-q seems to work also) 3) Server telnet to Serial escape^] = CTRL-]
1) Kill the XR Telnet first if it exists. - if you login to XR main console, if pressing keys cause garbage characters to appear, then you are probably still connected via the XR Telnet process OR, -if you can get to an XR aux port, you can see a telnet process running for the connection you made: bash-4.3# ps -ef | grep telnet
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