Concept Guide

Example of Viewing Port Monitoring Conguration
To display information on currently congured port-monitoring sessions, use the show monitor session command from EXEC
Privilege mode.
Dell(conf)# monitor session 0
Dell(conf-mon-sess-0)# source tengig 0/1 dest tengig 0/9 direction rx
Dell(conf-mon-sess-0)#exit
Dell(conf)# do show monitor session 0
SessionID Source Destination Direction Mode Type
--------- ------ ----------- --------- ---- ----
0 TenGig 0/1 TenGig 0/9 rx interface Port-based
Dell(conf)#
In the following example, the host and server are exchanging trac which passes through the uplink interface 0/1. Port 0/1 is the
monitored port and port 0/9 is the destination port, which is congured to only monitor trac received on tengigabitethernet 0/1 (host-
originated trac).
Figure 94. Port Monitoring Example
Important Points to Remember
• Port monitoring is supported on physical ports only; virtual local area network (VLAN) and port-channel interfaces do not support port
monitoring.
• The monitored (the source, [MD]) and monitoring ports (the destination, [MG]) must be on the same switch.
• The monitored (source) interface must be a server-facing interface in the format slot/port, where the valid slot numbers are 0 and
server-facing port numbers are from 1 to 8.
• The destination interface must be an uplink port (ports 9 to 12).
• In general, a monitoring port should have no ip address and no shutdown as the only conguration; the Dell Networking OS
permits a limited set of commands for monitoring ports. You can display these commands using the ? command.
• A monitoring port may not be a member of a VLAN.
630
Port Monitoring