Cabletron Systems 2H22 User Manual

, enables the user to 

redirect frames from one source port to one destination port. Frames 
received on the source port can be redirected and transmitted in the frame 
format in which they are received (normal), or they can be redirected with 
a VLAN Tag (TAGGED) or without a VLAN Tag (UNTAGGED). Also, 
any errored frames received can be either dropped or forwarded to the 
destination port. For example, port 1 can be set as the source port with 
port 2 as the destination port. Frames from port 1 are then automatically 
redirected to port 2 according to the configured frame format, and frames 
with errors can be either forwarded or dropped according to the screen 
settings.

The port redirect function is very useful for troubleshooting purposes, as 
it allows traffic to be sent to a particular port where, with the use of an 
analyzer or RMON probe, all current traffic from the source port can be 
examined.

If an optional ATM interface is installed, up to 128 ports may be 
set to redirect frames. This includes ATM Port Virtual Channels 
(PVCs). 

Although all traffic from the source port (including, if desired, 
errored frames) is sent to the destination port, normal switching 
is still performed for all frames on the source port.