Intel express 550t User Manual

Page of 151
500.bok : 50003    50  Fri Sep 11 14:52:16 1998
C   H   A   P   T   E   R   3
Standard Configuration
50
Port Mirroring
Purpose
Provides a facility to debug or monitor traffic on a specific port, by
duplicating the traffic and sending it to a specified port. Only one pair
of ports can be mirrored per switch. Within Port Mirroring, you can:
Add a new entry to the list
Delete an entry
Edit existing entries
Important
When a switch has Port Mirroring enabled, the switch cannot collect
RMON data from the RMON groups 4 to 8.
Adding Port Mirroring
To add a mirrored port to a switch:
Note
If Port Mirroring is enabled, the source port will be in store-
and-forward mode. Therefore, Runts, CRCs, etc. will not be
forwarded or mirrored.
1
Select
Device Setup
 or
Stack Setup
.
2
Click
Port Mirroring
.
3
Click
Add
.
4
For a stack, click
Switch
and select one.
5
Click
Reflect from
 and select the port that you want.
6
Click
Reflect to
 and select the port to where the traffic can
be debugged/monitored.
7
Click
OK
.