FTOS Configuration Guide for the C-Series - Force10 Networks

Display monitor sessions using the command show monitor session from EXEC Privilege mode, as
shown in Figure 88.
Figure 88 Configuring Port-based Monitoring
Force10(conf-if-gi-1/2)#show config
!
interface GigabitEthernet 1/2
no ip address
no shutdown
Force10(conf-if-gi-1/2)#exit
Force10(conf)#monitor session 0
Force10(conf-mon-sess-0)#source gig 1/1 dest gig 1/2 direction rx
Force10(conf-mon-sess-0)#exit
Force10(conf)#do show monitor session 0
SessionID Source Destination Direction Mode Type
--------- ------ ----------- --------- ---- ----
0 Gi 1/1 Gi 1/2 rx interface Port-based
Force10(conf)#
In Figure 89, the host and server are exchanging traffic which passes through interface gigabitethernet 1/1.
Interface gigabitethernet 1/1 is the monitored port and gigabitethernet 1/2 is the monitoring port, which is
configured to only monitor traffic received on gigabitethernet 1/1 (host-originated traffic).
Figure 89 Port Monitoring Example
Host
Host Traffic
1/1
Server Traffic
Force10(conf-if-gi-1/2)#show config
!
interface GigabitEthernet 1/2
no ip address
no shutdown
Sniffer
Force10(conf )#monitor session 0
Force10(conf-mon-sess-0)#source gig 1/1 destination gig 1/2 direction rx
1/2
Server
178 Port Monitoring
1/3
Port Monitoring 001