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
clear controllers ethernet-controller
clear controllers ethernet-controller
Use the clear controllers ethernet-controller privileged EXEC command to clear the Ethernet link
transmit and receive statistics for a switch port and for a Long-Reach Ethernet (LRE) customer premises
equipment (CPE) device.
clear controllers ethernet-controller interface-id [cpe [port port-id]]
Syntax Description
Defaults No default is defined.
Command Modes Privileged EXEC
Command History
Usage Guidelines The CPE Ethernet link is the connection between the CPE Ethernet port and the remote Ethernet device
(such as a PC) connected to it. It is not the link between the switch LRE port and the LRE CPE device.
It takes the switch several seconds to clear the CPE Ethernet ports. The CPE Ethernet ports on CPE
devices take longer to clear than all the other port types.
If you enter the clear controllers ethernet-controller privileged EXEC command without specifying
an interface-id, the switch clears the Ethernet link statistics for all ports on the switch. If you specify an
an interface, the switch clears the Ethernet link statistics for the specified port.
On a Catalyst 2950 LRE switch, if you use the cpe keyword, the switch clears the Ethernet statistics of
the LRE chipset and of all these CPE Ethernet ports:
• Ethernet port on the Cisco 575 LRE CPE or the Cisco 576 LRE 997 CPE
• All four Ethernet ports on the Cisco 585 LRE CPE
If you enter the cpe port port-id keywords, the switch clears the Ethernet counters of the specified CPE
Ethernet port.
Note The Cisco 585 LRE CPE Ethernet ports cannot be cleared on a per-port basis, even by using the port-id
argument.
cpe Clear the LRE CPE port statistics for all CPE ports. This keyword is available
only on a Catalyst 2950 LRE switch.
port port-id Clear the LRE CPE port statistics for a specific port. For port-id, the range is
1 to 4, depending on CPE device model.
This keyword is available only on a Catalyst 2950 LRE switch.
Release Modification
12.1(11)YJ This command was introduced.

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