Cisco WS-C3560E-48PD-SF Command Reference - Page 357
remote-span
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Chapter 2 Catalyst 3560 Switch Cisco IOS Commands remote-span 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 Release 12.1(19)EA1 Modification This command was introduced. Usage Guidelines You can configure RSPAN VLANs only in config-VLAN mode (entered by using the vlan global configuration command), not the VLAN configuration mode entered by using the vlan database privileged EXEC command. If VLAN Trunking Protocol (VTP) is enabled, the RSPAN feature is propagated by VTP for VLAN-IDs that are lower than 1005. If the RSPAN VLAN ID is in the extended range, you must manually configure intermediate switches (those in the RSPAN VLAN between the source switch and the destination switch). Before you configure the RSPAN remote-span command, use the vlan (global configuration) command to create the VLAN. 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. 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 are made inactive until the RSPAN feature is disabled. 78-16405-05 Catalyst 3560 Switch Command Reference 2-325