Cisco WS-C3560E-48PD-SF Command Reference - Page 701

Chapter 2 Catalyst 3560 Switch Cisco IOS Commands vlan (global configuration) If you enter an invalid VLAN ID, you receive an error message and do not enter config-vlan mode. Entering the vlan command with a VLAN ID enables config-vlan mode. When you enter the VLAN ID of an existing VLAN, you do not create a new VLAN, but you can modify VLAN parameters for that VLAN. The specified VLANs are added or modified when you exit the config-vlan mode. Only the shutdown command (for VLANs 1 to 1005) takes effect immediately. These configuration commands are available in config-vlan mode. The no form of each command returns the characteristic to its default state. Note Although all commands are visible, the only VLAN configuration commands that are supported on extended-range VLANs are mtu mtu-size, private-vlan, and remote-span. For extended-range VLANs, all other characteristics must remain at the default state. • are are-number: defines the maximum number of all-routes explorer (ARE) hops for this VLAN. This keyword applies only to TrCRF VLANs.The range is 0 to 13. The default is 7. If no value is entered, 0 is assumed to be the maximum. • backupcrf: specifies the backup CRF mode. This keyword applies only to TrCRF VLANs. - enable backup CRF mode for this VLAN. - disable backup CRF mode for this VLAN (the default). • bridge {bridge-number| type}: specifies the logical distributed source-routing bridge, the bridge that interconnects all logical rings having this VLAN as a parent VLAN in FDDI-NET, Token Ring-NET, and TrBRF VLANs. The range is 0 to 15. The default bridge number is 0 (no source-routing bridge) for FDDI-NET, TrBRF, and Token Ring-NET VLANs. The type keyword applies only to TrCRF VLANs and is one of these: - srb (source-route bridging) - srt (source-route transparent) bridging VLAN • exit: applies changes, increments the VLAN database revision number (VLANs 1 to 1005 only), and exits config-vlan mode. • media: defines the VLAN media type. See Table 2-38 for valid commands and syntax for different media types. Note The switch supports only Ethernet ports. You configure only FDDI and Token Ring media-specific characteristics for VLAN Trunking Protocol (VTP) global advertisements to other switches. These VLANs are locally suspended. - ethernet is Ethernet media type (the default). - fddi is FDDI media type. - fd-net is FDDI network entity title (NET) media type. - tokenring is Token Ring media type if the VTP v2 mode is disabled, or TrCRF if the VTP Version 2 (v) mode is enabled. - tr-net is Token Ring network entity title (NET) media type if the VTP v2 mode is disabled or TrBRF media type if the VTP v2 mode is enabled. • mtu mtu-size: specifies the maximum transmission unit (MTU) (packet size in bytes). The range is 1500 to 18190. The default is 1500 bytes. 78-16405-05 Catalyst 3560 Switch Command Reference 2-669