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• You can configure the same source port to be used in multiple source sessions.
• You cannot configure a source port channel or source VLAN in a source session if the port channel or
VLAN has a member port that is configured as a destination port in a remote-port mirroring session.
• A destination port for remote port mirroring cannot be used as a source port, including the session in
which the port functions as the destination port.
• A destination port cannot be used in any spanning tree instance.
• The reserved VLAN used to transport mirrored traffic must be a L2 VLAN. L3 VLANs are not supported.
Displaying a Remote-Port Mirroring Configuration
To display the current configuration of remote port mirroring for a specified session, enter the show
config command in MONITOR SESSION configuration mode.
Dell(conf-mon-sess-2)#show config
!
monitor session 2 type rpm
source fortyGigE 0/60 destination remote-vlan 300 direction rx
source Port-channel 10 destination remote-vlan 300 direction rx
no disable
To display the currently configured source and destination sessions for remote port mirroring on a
switch, enter the show monitor session command in EXEC Privilege mode.
Dell(conf)#do show monitor session
SessID Source Destination Dir Mode Source IP Dest IP
------ ------ ----------- --- ---- --------- --------
1 remote-vlan 100 Fo 0/48 N/A N/A N/A N/A
1 remote-vlan 100 Po 100 N/A N/A N/A N/A
2 Fo 0/60 remote-vlan 300 rx Port N/A N/A
2 Po 10 remote-vlan 300 rx Port N/A N/A
To display the current configuration of the reserved VLAN, enter the show vlan command.
Dell#show vlan
Codes: * - Default VLAN, G - GVRP VLANs, R - Remote Port Mirroring VLANs, P -
Primary, C - Community, I - Isolated
O - Openflow
Q: U - Untagged, T - Tagged
x - Dot1x untagged, X - Dot1x tagged
o - OpenFlow untagged, O - OpenFlow tagged
G - GVRP tagged, M - Vlan-stack
i - Internal untagged, I - Internal tagged, v - VLT untagged, V - VLT tagged
NUM Status Description Q Ports
* 1 Inactive
R 100 Active T Fo 0/44
R 300 Active T Fo 0/52
Configuring Remote Port Monitoring
Remote port monitoring requires a source session (monitored ports on different source switches), a
reserved tagged VLAN for transporting mirrored traffic (configured on source, intermediate, and
destination switches), and a destination session (destination ports connected to analyzers on destination
switches).
To configure a remote-port monitoring session:
692
Port Monitoring