Reference Guide
692 | Port Monitoring
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For the S5000, the total number of monitoring sessions is derived by consuming a unique destination port
in each session, in each port-pipe.
Port Monitoring on the S5000
The S5000 supports multiple source-destination statements in a monitor session, but there may only be one
destination port in a monitoring session (Message 1).
The number of source ports Dell Networking OS allows within a port-pipe is equal to the number of
physical ports in the port-pipe (n). However, n number of ports may only have four different destination
ports (Message 2).
Figure 37-1. Number of Monitoring Ports on the S5000
In Figure 37-1, ports 0/13, 0/14, 0/15, and 0/16 all belong to the same port-pipe. They are pointing to four
different destinations (0/1, 0/2, 0/3, and 0/37). Now it is not possible for another source port from the same
port-pipe (for example, 0/17) to point to another new destination (for example, 0/4). If you attempt to
configure another destination, Message 2 appears. However, you can configure another monitoring session
that uses one of previously used destination ports, as shown in Figure 37-2.
Note: There is no limit to the number of monitoring sessions per system, provided there are only 4
destination ports per port-pipe. If each monitoring session has a unique destination port, then the
maximum number of session is 4 per port-pipe.
Message 1 One Destination Port in a Monitoring Session Error Message on the S5000
% Error: Only one MG port is allowed in a session.
Dell#show mon session
SessionID Source Destination Direction Mode Type
--------- ------ ----------- --------- ---- ----
0 Te 0/13 Te 0/1 rx interface Port-based
10 Te 0/14 Te 0/2 rx interface Port-based
20 Te 0/15 Te 0/3 rx interface Port-based
30 Te 0/16 Te 0/37 rx interface Port-based
Dell(conf)#mon ses 300
Dell(conf-mon-sess-300)#source gig 0/17 destination gig 0/4 direction tx
% Error: Exceeding max MG ports for this MD port pipe.
Dell(conf-mon-sess-300)#
Dell(conf-mon-sess-300)#source gig 0/17 destination gig 0/1 direction tx
Dell(conf-mon-sess-300)#do show mon session
SessionID Source Destination Direction Mode Type
--------- ------ ----------- --------- ---- ----
0 Te 0/13 Te 0/1 rx interface Port-based
10 Te 0/14 Te 0/2 rx interface Port-based
20 Te 0/15 Te 0/3 rx interface Port-based
30 Te 0/16 Te 0/37 rx interface Port-based
300 Te 0/17 Te 0/1 tx interface Port-based
Dell(conf-mon-sess-300)#