Troubleshooting AWTUN on Branch Session Manager

Last Updated : Jul 25, 2024 |
Prolog information
Use the following information to troubleshoot Avaya WebSocket Tunnel(AWTUN) on Branch Session Manager:
  • To view if edge topology is enabled, run smconfig
  • To view AWTUN connection, run statapp. The output displays AWTUN as Tunnel.
  • AWTUN process runs under Linux systemd awtuns.target
  • Target is enabled by edgeSetup.
  • awtuns.target can have up to 2 services. awtun@X.service when X is 1, AWTUN service communicates with the primary System Manager. When X is 2, AWTUN service communicating with the secondary System Manager is optional.
  • awtun@2.service is enabled if System Manager GEO is configured.
  • AWTUN log messages are captured in /var/log/messages
  • To view the AWTUN log messages, run grep awtun /var/log/messages
  • awtun@1.service forwards ports for the loopback IP address 127.0.1.1 to the primary System Manager.
  • awtun@2.service forwards ports for the loopback IP address 127.0.1.2 to the secondary System Manager.
  • To view the port redirection rules, run nft list chain inet nat awtun_redirect
  • To view the current connections to AWTUN, run awtunstat. This utility provides a filtering option. To view the full options, run awtunstat -h
The following table provides a few examples for running awtun_redirect on Branch Session Manager:
Command
Description
awtunstat
To view all active connections.
awtunstat -n
To view all active connections with IP addresses only.
awtunstat -l
To view all active connections, including listener sockets.
awtunstat -n -i':443'
To view only WebSocket connections of port 443.
awtunstat -n -e':443'
To view all active connections, excluding the WebSocket connections.
awtunstat -nw -e':443'
To continually view active connections, excluding the WebSocket connections.
Note:
From the root user login, you can view and execute all the troubleshooting commands.