Enterasys S8 switch shows tbp port

[sandeep]

When I see "

code:

sh port status"

on Enterasys s8 switch, it given me list of tbp ports as follows:

code:

tbp.0.1  down  up  other  tbp.0.2  down  up  other  tbp.0.3  down  up  other  tbp.0.4  down  up  other  tbp.0.5  down  up  other  tbp.0.6  down  up  other  

what are these tbp ports?

Currenty switch Chassis Firmware version is "08.31.01.0006"

[sandeep]

thanks curt....
as this come after upgrading the firmware....

[Curtis_Parish1]

Tunnel bridge port. Used for terminating tunnels.