Cisco Catalyst 2950 Command Reference

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Catalyst 2950 and Catalyst 2955 Switch Command Reference
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Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
spanning-tree mst configuration
spanning-tree mst configuration
Use the spanning-tree mst configuration global configuration command to enter multiple
spanning-tree (MST) configuration mode through which you configure the MST region. Use the no form
of this command to return to the default settings.
spanning-tree mst configuration
no spanning-tree mst configuration
Syntax Description This command has no arguments or keywords.
Defaults The default mapping is that all VLANs are mapped to the common and internal spanning tree (CIST)
instance (instance 0).
The default name is an empty string.
The revision number is 0.
Command Modes Global configuration
Command History
Usage Guidelines Entering the spanning-tree mst configuration command enables the MST configuration mode. These
configuration commands are available:
• abort: exits the MST region configuration mode without applying configuration changes.
• exit: exits the MST region configuration mode and applies all configuration changes.
• instance instance-id vlan vlan-range: maps VLANs to an MST instance. The instance-id range is 1
to 15. The vlan-range range is 1 to 4094. You can specify a single VLAN identified by VLAN ID
number, a range of VLANs separated by a hyphen, or a series of VLANs separated by a comma.
• name name: sets the configuration name. The name string has a maximum length of 32 characters
and is case sensitive.
• no: negates the instance, name, and revision commands or sets them to their defaults.
• private-vlan: Though visible in the command-line help strings, this command is not supported.
• revision version: sets the configuration revision number. The range is 0 to 65535.
• show [current | pending]: displays the current or pending MST region configuration.
In MST mode, the switch supports up to 16 MST instances. The number of VLANs that can be mapped
to a particular MST instance is unlimited.
Release Modification
12.1(9)EA1 This command was introduced.
12.1(20)EA2 This command was added to the standard software image (SI).

Cisco Catalyst 2950 Specifications

General

Forwarding Bandwidth	8.8 Gbps
Switching Capacity	13.6 Gbps
Forwarding Rate	6.6 Mpps
Weight	3.6 kg
RAM	16 MB
Flash Memory	8 MB
Operating Humidity	10% to 85% non-condensing
Uplink Ports	2 x 10/100/1000Base-T
Dimensions	4.4 cm x 44.5 cm x 24.2 cm
Remote Management Protocol	SNMP, Telnet, HTTP
Features	Quality of Service (QoS), VLAN support
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p
Status Indicators	system
Operating Temperature	0 to 45°C
Ports	24 x 10/100 Ethernet ports
MAC Address Table Size	8, 192 entries
Power Supply	Internal 100-240V AC, 50-60Hz