Cisco Catalyst 3750-X Command Reference

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Catalyst 3750-X and 3560-X Switch Command Reference
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Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
vlan
With VTP version 1 and version 2, if you try to create an extended-range VLAN when the switch is not
in VTP transparent mode, the VLAN is rejected, and you receive an error message.
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 2-58 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.

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing