Service Manual

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
S4048–ON
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 is 4 per port pipe.
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 Te 1/1 Te 2/1 both Port N/A N/A
2 Te 1/1 Te 2/2 both Port N/A N/A
3 Te 1/1 Te 2/3 both Port N/A N/A
4 Te 1/1 Te 2/4 both Port N/A N/A
5 Te 1/1 Te 2/5 both Port N/A N/A
Dell(conf-mon-sess-5)#
Dell(conf)#mon ses 300
Dell(conf-mon-sess-300)#source tengig 1/17
destination tengig 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 tengig 1/17 destination tengig 1/1 direction tx
Dell(conf-mon-sess-300)#do show mon session
SessionID Source Destination Direction Mode Type
--------- ------ ----------- --------- ---- ----
0 Te 1/13 Te 2/1 rx interface Port-based
10 Te 1/14 Te 2/2 rx interface Port-based
20 Te 1/15 Te 2/3 rx interface Port-based
30 Te 1/16 Te 2/7 rx interface Port-based
300 Te 1/17 Te 1/1 tx interface Port-based
Dell(conf-mon-sess-300)#
Example of Configuring Another Monitoring Session with a Previously Used Destination Port
Dell(conf)#mon ses 300
Dell(conf-mon-sess-300)#source TenGig 1/17 destination TenGig 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 TenGig 1/17 destination TenGig 1/1 direction tx
Dell(conf-mon-sess-300)#do show mon session
SessionID Source Destination Direction Mode Type
--------- ------ ----------- --------- ---- ----
0 Te 1/13 Te 1/1 rx interface Port-based
10 Te 1/14 Te 1/2 rx interface Port-based
20 Te 1/15 Te 1/3 rx interface Port-based
30 Te 1/16 Te 1/7 rx interface Port-based
300 Te 1/17 Te 1/1 tx interface Port-based
Port Monitoring
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