Cisco Catalyst 2950 Command Reference

2-538
Catalyst 2950 and Catalyst 2955 Switch Command Reference
OL-10102-01
Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
vlan (VLAN configuration)
Table 2-37 shows the valid syntax options for different media types.
media {ethernet | fddi |
fd-net | tokenring | tr-net}
(Optional) Specify the VLAN media type. Table 2-37 lists the valid
syntax for each media type.
• 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 v2 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 (Optional) Specify the maximum transmission unit (MTU) (packet size
in bytes). The range is 1500 to 18190.
name vlan-name (Optional) Specify the VLAN name, an ASCII string from 1 to 32
characters that must be unique within the administrative domain.
parent parent-vlan-id (Optional) Specify the parent VLAN of an existing FDDI, Token Ring,
or TrCRF VLAN. This parameter identifies the TrBRF to which a
TrCRF belongs and is required when defining a TrCRF. The range is 0
to 1005.
ring ring-number (Optional) Specify the logical ring for an FDDI, Token Ring, or TrCRF
VLAN. The range is 1 to 4095.
said said-value (Optional) Enter the security association identifier (SAID) as
documented in IEEE 802.10. The range is 1 to 4294967294 that must
be unique within the administrative domain.
state {suspend | active} (Optional) Specify the VLAN state:
• If active, the VLAN is operational.
• If suspend, the VLAN is suspended. Suspended VLANs do not
pass packets.
ste ste-number (Optional) Specify the maximum number of spanning-tree explorer
(STE) hops. This keyword applies only to TrCRF VLANs. The range is
0 to 13.
stp type {ieee | ibm | auto} (Optional) Specify the spanning-tree type for FDDI-NET, Token
Ring-NET, or TrBRF VLAN.
• ieee for IEEE Ethernet STP running source-route transparent
(SRT) bridging.
• ibm for IBM STP running source-route bridging (SRB).
• auto for STP running a combination of source-route transparent
bridging (IEEE) and source-route bridging (IBM).
tb-vlan1 tb-vlan1-id
and tb-vlan2 tb-vlan2-id
(Optional) Specify the first and second VLAN to which this VLAN is
translationally bridged. Translational VLANs translate FDDI or Token
Ring to Ethernet, for example. The range is 0 to 1005. Zero is assumed
if no value is specified.

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