Port Mirroring Overview Diagnosing Switch Problems
page 35-4 OmniSwitch 6800/6850/9000 Network Configuration Guide March 2008
Quick Steps for Configuring Port Mirroring
1 Create a port mirroring session. Be sure to specify the port mirroring session ID, source (mirrored) and
destination (mirroring) slot/ports, and unblocked VLAN ID (optional—protects the mirroring session
from changes in Spanning Tree if the mirroring port will monitor mirrored traffic on an RMON probe
belonging to a different VLAN). For example:
-> port mirroring 6 source 2/3-9 destination 2/10 unblocked 7
Note. Optional. To verify the port mirroring configuration, enter show port mirroring status followed by
the port mirroring session ID number. The display is similar to the one shown below:
-> show port mirroring status 6
Session Mirror Mirror Unblocked Config Oper
Destination Direction Vlan Status Status
----------+----------+--------------+----------+----------+---------
6. 2/10 - NONE Enable On
----------+----------+--------------+----------+----------+---------
Mirror
Source
----------+----------+--------------+----------+----------+---------
6. 2/3 bidirectional - Enable On
6. 2/4 bidirectional - Enable On
6. 2/5 bidirectional - Enable On
6. 2/6 bidirectional - Enable On
6. 2/7 bidirectional - Enable On
6. 2/8 bidirectional - Enable On
6. 2/9 bidirectional - Enable On
For more information about this command, see “Displaying Port Mirroring Status” on page 35-23 or the
“Port Mirroring and Monitoring Commands” chapter in the OmniSwitch CLI Reference guide.
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