Users Guide

• Destination port (MG) can be a physical interface or port-channel interface.
• A Port monitoring session can have multiple source statements.
• Range command is supported in the source statement, where we can specify a range of interfaces of
(Physical, Port Channel or VLAN) types.
• One Destination Port (MG) can be used in multiple sessions.
• There can be a maximum of 128 source ports in a Port Monitoring session.
• Flow based monitoring is supported for all type of source interfaces.
• Source port (MD) can be a VLAN, where the VLAN traffic received on that port pipe where its members
are present is monitored
• Single MD can be monitored on max. of 4 MG ports.
Port Monitoring
Port monitoring is supported on both physical and logical interfaces, such as VLAN and port-channel
interfaces. The source port (MD) with monitored traffic and the destination ports (MG) to which an analyzer
can be attached must be on the same switch. You can configure up to 128 source ports in a monitoring
session. Only one destination port is supported in a monitoring session. The platform supports multiple
source-destination statements in a single monitor session.
The maximum number of source ports that can be supported in a session is 128.
The maximum number of destination ports that can be supported depends on the port mirroring directions as
follows:
• 4 per port pipe, if the four destination ports mirror in one direction, either rx or tx.
• 2 per port pipe, if the two destination ports mirror in bidirection.
• 3 per port pipe, if one of the destination port mirrors bidirection and the other two ports mirror in one
direction (either rx or tx).
In the following examples, ports 1/13, 1/14, 1/15, and 1/16 all belong to the same port-pipe. They are pointing
to four different destinations (1/1, 1/2, 1/3, and 1/37). Now it is not possible for another source port from the
same port-pipe (for example, 1/17) to point to another new destination (for example, 1/4). If you attempt to
configure another destination (to create 5 MG port), this message displays: % Error will be thrown in
case of RPM and ERPM features.
Example of Changing the Destination Port in a Monitoring Session
Dell(conf-mon-sess-5)#do show moni session
SessID Source Destination Dir Mode Source IP Dest IP
------ ------ ----------- --- ---- --------- --------
1 Gi 1/1 Gi 2/1 both Port N/A N/A
2 Gi 1/1 Gi 2/2 both Port N/A N/A
3 Gi 1/1 Gi 2/3 both Port N/A N/A
4 Gi 1/1 Gi 2/4 both Port N/A N/A
5 Gi 1/1 Gi 2/5 both Port N/A N/A
Dell(conf-mon-sess-5)#
Dell(conf)#mon ses 300
Dell(conf-mon-sess-300)#source gig 1/17 destination gig 1/4 direction tx
% Error: Exceeding max MG ports for this MD port pipe.
Dell(conf-mon-sess-300)#
Dell(conf-mon-sess-300)#source gig 1/17
destination gig 1/1 direction tx
Dell(conf-mon-sess-300)#do show mon session
SessionID Source Destination Direction Mode Type
Port Monitoring 704