Cisco Catalyst 2950 Command Reference

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Catalyst 2950 and Catalyst 2955 Switch Command Reference
OL-10102-01
Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
margin
For more information about link stability and margins, see the software configuration guide for this
release.
Examples This example shows how to specify a margin of 2 dB for both upstream and downstream. If the SNR is
2 dB above the theoretical minimum for the chosen profile when the link is established, the link is
classified as down and the next profile in the sequence is attempted.
Switch(config-if)# margin upstream 2 downstream 2
This example shows show to specify a margin of 1 dB for downstream:
Switch(config-if)# margin downstream 1
Related Commands Command Description
lre rate selection sequence Assigns a rate selection sequence for the entire switch.
rate selection Enables rate selection on a specific port.
rate selection sequence Assigns a rate selection sequence for a specific port.

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