Cisco Systems 3750E Creating an Rspan Source Session, Destination remote vlan vlan-id, 30-18

Chapter 30 Configuring SPAN and RSPAN

Configuring SPAN and RSPAN

To remove the remote SPAN characteristic from a VLAN and convert it back to a normal VLAN, use the no remote-spanVLAN configuration command.

This example shows how to create RSPAN VLAN 901.

Switch(config)# vlan 901

Switch(config-vlan)# remote span

Switch(config-vlan)# end

Creating an RSPAN Source Session

Beginning in privileged EXEC mode, follow these steps to start an RSPAN source session and to specify the monitored source and the destination RSPAN VLAN:

	Command		Purpose
Step 1	configure terminal		Enter global configuration mode.
Step 2	no monitor session {session_number all		Remove any existing RSPAN configuration for the session.
	local remote}		For session_number, the range is 1 to 66.
			Specify all to remove all RSPAN sessions, local to remove all local
			sessions, or remote to remove all remote SPAN sessions.
Step 3	monitor session session_number source		Specify the RSPAN session and the source port (monitored port).
	{interface interface-id vlan vlan-id} [, -]		For session_number, the range is 1 to 66.
	[both rx tx]
			Enter a source port or source VLAN for the RSPAN session:
			• For interface-id, specify the source port to monitor. Valid
			interfaces include physical interfaces and port-channel logical
			interfaces (port-channelport-channel-number). Valid
			port-channel numbers are 1 to 48.
			• For vlan-id, specify the source VLAN to monitor. The range is 1
			to 4094 (excluding the RSPAN VLAN).
			A single session can include multiple sources (ports or VLANs),
			defined in a series of commands, but you cannot combine source
			ports and source VLANs in one session.
			(Optional) [, -] Specify a series or range of interfaces. Enter a space
			before and after the comma; enter a space before and after the
			hyphen.
			(Optional) Specify the direction of traffic to monitor. If you do not
			specify a traffic direction, the source interface sends both sent and
			received traffic.
			• both—Monitor both received and sent traffic.
			• rx—Monitor received traffic.
			• tx—Monitor sent traffic.
Step 4	monitor session session_number		Specify the RSPAN session and the destination RSPAN VLAN.
	destination remote vlan vlan-id		For session_number, enter the number defined in Step 3.
			For vlan-id, specify the source RSPAN VLAN to monitor.
Step 5	end		Return to privileged EXEC mode.
		Catalyst 3750-E and 3560-E Switch Software Configuration Guide
30-18			OL-9775-02