HP Cisco Nexus 5000 Cisco Nexus 5000 Series Switch CLI Software Configuration - Page 724

Activating a SPAN Session Configuring SPAN Procedure Step 1 Command or Action Purpose switch(config-monitor)# description description Applies a descriptive name to the SPAN session. The following example shows configuring a description of a SPAN session: switch# configure terminal switch(config)# monitor session 2 switch(config-monitor)# description monitoring ports fc2/2-fc2/4 Activating a SPAN Session The default is to keep the session state shut. You can open a session that duplicates packets from sources to destinations. Procedure Step 1 Command or Action switch(config)# no monitor session {all | session-number} shut Purpose Opens the specified SPAN session or all sessions. The following example shows activating a SPAN session: switch(config)# no monitor session 3 shut Suspending a SPAN Session The default is to keep the session state shut. You can suspend a SPAN session. Procedure Step 1 Command or Action switch(config)# monitor session {all | session-number} shut Purpose Suspends the specified SPAN session or all sessions. The following example shows suspending a SPAN session: switch(config)# monitor session 3 shut Note The Cisco Nexus 5000 Series switch supports two active SPAN sessions. When you configure more than two SPAN sessions, the first two sessions are active. During startup, the order of active sessions is reversed; the last two sessions are active. For example, if you configured ten sessions 1 to 10 where 1 and 2 are active, after a reboot, sessions 9 and 10 will be active. To enable deterministic behavior, explicitly suspend the sessions 3 to 10 with the monitor session session-number shut command. Cisco Nexus 5000 Series Switch CLI Software Configuration Guide 678 OL-16597-01