Reference Guide

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 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 Te 1/1/1, Te 1/1/2, Te 1/1/3, and Te 1/1/4 all belong to the same pipeline.
They are pointing to four different destinations: Te 1/4/1, Te 1/4/2, Te 1/4/3, and Te 1/4/4. If you attempt
to configure another destination (to create 5 MG port), this message displays: Sep 9 02:40:09:
%Z9100-ON:1 %ACL_AGENT-3-ACL_AGENT_MTP_CREATE_FAILED: Unable to create MTP entry
for MD Te 1/2/1 MG Te 1/5/1 in stack-unit 1 port-pipe 0.
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 DSCP TTL Drop Rate
------ ------ ----------- --- ---- ---------
-------- ---- ---- --- -----
100 Te 1/1/1 Te 1/4/1 rx Port N/A N/A N/
A N/A No N/A
200 Te 1/1/2 Te 1/4/2 tx Port N/A N/A N/
A N/A No N/A
300 Te 1/1/3 Te 1/4/3 rx Port N/A N/A N/
A N/A No N/A
400 Te 1/1/4 Te 1/4/4 rx Port N/A N/A N/
A N/A No N/A
Dell(conf-mon-sess-5)#
Example of Configuring Another Monitoring Session with a Previously Used Destination Port
Dell(conf)#mon ses 300
Dell(conf-mon-sess-300)#source TenGig 1/17/1 destination TenGig 1/4/1 direction
tx
% Error: Exceeding max MG ports for this MD port pipe.
Example of Viewing a Monitoring Session
Dell#show running monitor session
!
monitor session 100
source TenGigabitEthernet 1/1/1 destination TenGigabitEthernet 1/4/1 direction
rx
!
monitor session 200
source TenGigabitEthernet 1/1/2 destination TenGigabitEthernet 1/4/2 direction
tx
!
monitor session 300
source TenGigabitEthernet 1/1/3 destination TenGigabitEthernet 1/4/3 direction
rx
!
monitor session 400
source TenGigabitEthernet 1/1/4 destination TenGigabitEthernet 1/4/4 direction
Port Monitoring
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