Specifications

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Cisco ME 3400 Ethernet Access Switch Command Reference

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Chapter 2 Cisco ME 3400 Ethernet Access Switch Cisco IOS Commands

remote-span

Use the remote-span VLAN configuration command to configure a VLAN as a Remote Switched Port

Analyzer (RSPAN) VLAN. Use the no form of this command to remove the RSPAN designation from

the VLAN.

remote-span

no remote-span

Syntax Description This command has no arguments or keywords.

Defaults No RSPAN VLANs are defined.

Command Modes VLAN configuration (config-VLAN)

Command History

Usage Guidelines Valid RSPAN VLAN IDs are 2 to 1001 and 1006 to 4094. The RSPAN VLAN cannot be VLAN 1 (the

default VLAN) or VLAN IDs 1002 to 1005 (reserved for Token Ring and FDDI VLANs).

Before you configure the RSPAN remote-span command, use the vlan global configuration command

to create the VLAN.

• To change a VLAN from a user network interface-enhanced network interface (UNI-ENI) isolated

VLAN (the default) to an RSPAN VLAN, enter the rspan-vlan VLAN configuration command.

• To change a UNI-ENI community VLAN to an RSPAN VLAN, you must first remove the

community VLAN type by entering the no uni-vlan VLAN configuration command.

The RSPAN VLAN has these characteristics:

• No MAC address learning occurs on it.

• RSPAN VLAN traffic flows only on trunk ports.

• Spanning Tree Protocol (STP) can run in the RSPAN VLAN, but it does not run on RSPAN

destination ports. On the Cisco ME switch only network node interfaces (NNIs) or enhanced

network interfaces (ENIs) on which STP has been enabled participate in STP.

You must manually also configure both source, destination, and intermediate switches (those in the

RSPAN VLAN between the source switch and the destination switch) with the RSPAN VLAN ID.

When an existing VLAN is configured as an RSPAN VLAN, the VLAN is first deleted and then recreated

as an RSPAN VLAN. Any access ports become inactive until the RSPAN feature is disabled.

Release Modification

12.2(25)EX This command was introduced.