Remote-Span - Cisco ME 3400 Command Reference Manual

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.
Syntax Description
This command has no arguments or keywords.
Defaults
No RSPAN VLANs are defined.
Command Modes VLAN configuration (config-VLAN)
Command History Release
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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.
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The RSPAN VLAN has these characteristics:
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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.
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Modification
This command was introduced.
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.
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.
Cisco ME 3400 Ethernet Access Switch Command Reference
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