Catalyst 3750-E and 3560-E Switch Cisco IOS ... - DNIP . NET

emote-spanChapter 2Catalyst 3750-E and 3560-E Switch Cisco IOS Commandsremote-spanUse the remote-span VLAN configuration command on the switch stack or on a standalone switch toconfigure a VLAN as a Remote Switched Port Analyzer (RSPAN) VLAN. Use the no form of thiscommand to remove the RSPAN designation from the VLAN.remote-spanno remote-spanSyntax DescriptionThis command has no arguments or keywords.DefaultsNo RSPAN VLANs are defined.Command ModesVLAN configuration (config-VLAN)Command HistoryRelease12.2(35)SE2ModificationThis command was introduced.Usage GuidelinesYou can configure RSPAN VLANs only in config-VLAN mode (entered by using the vlan globalconfiguration command), not the VLAN configuration mode entered by using the vlan databaseprivileged EXEC command.If VLAN Trunking Protocol (VTP) is enabled, the RSPAN feature is propagated by VTP for VLAN-IDsthat are lower than 1005. If the RSPAN VLAN ID is in the extended range, you must manually configureintermediate switches (those in the RSPAN VLAN between the source switch and the destinationswitch).Before you configure the RSPAN remote-span command, use the vlan (global configuration) commandto 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 RSPANdestination ports.When an existing VLAN is configured as an RSPAN VLAN, the VLAN is first deleted and then recreatedas an RSPAN VLAN. Any access ports are made inactive until the RSPAN feature is disabled.2-466Catalyst 3750-E and 3560-E Switch Command ReferenceOL-9776-08