If you want to send your Extreme Switch syslogs over to a remote syslog server you can do it with the following commands:
SSH or telnet to your switch and login with username and password.
conf syslog add 192.168.0.1:514 vr "VR-Default" local0 <enter> enable log target syslog 192.168.0.1:514 <enter> save <enter> y <enter> exit <enter>
Replace 192.168.0.1 with the IP of your syslog server and port 514 if the server doesn’t listen for incoming traffic on port 514.
If your using a LogLogic server your device will appear in the devices list. I have no experience of other syslog servers so they may need to be setup to log the traffic but this is all you need to do on the extreme end.