Cisco Catalyst 2950 User Manual

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Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
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Chapter 12 Configuring LRE
Configuring LRE Ports
LRE Message Logging Process
The Catalyst 2950 LRE switch software monitors switch conditions on a per-port basis and sends the
debugging messages to an LRE message logging process that is different than the system message
logging process described in Chapter 26, “Configuring System Message Logging.”
These options are available in the LRE logging process:
• Disabled—The switch does not log LRE events.
• Event—The switch logs only LRE events.
• Extended—The switch logs LRE events and all the LRE parameters.
• Normal—The switch logs LRE events and the typical LRE parameters.
You can use the logging lre interface configuration command to specify the mode in which to log LRE
events. To display the events on the LRE interfaces, use the show controllers lre log privileged EXEC
command. For more information about these commands, see the command reference for this release.
If the syslog export feature is enabled, the switch sends the information to the LRE message logging
process and to the system message logging process. For information about configuring this feature, see
the “Configuring Syslog Export” section on page 12-23.
Configuring LRE Ports
These sections describe configuration guidelines and how to assign a profile to all or to individual LRE
ports. These sections contain more information about LRE links, ports, and profiles:
• Default LRE Configuration, page 12-9
• Environmental Guidelines for LRE Links, page 12-9
• Guidelines for Using LRE Profiles, page 12-10
• CPE Ethernet Link Guidelines, page 12-11
• Assigning a Global Profile to All LRE Ports, page 12-12 (optional)
• Assigning a Profile to a Specific LRE Port, page 12-13 (optional)
• Assigning a Global Sequence to All LRE Ports, page 12-13 (optional)
• Assigning a Sequence to a Specific LRE Port, page 12-14 (optional)
• Using Rate Selection to Automatically Assign Profiles, page 12-14 (optional)
• Configuring LRE Link Persistence, page 12-19 (optional)
• Configuring LRE Link Monitor, page 12-20 (optional)
• Configuring LRE Interleave, page 12-20 (optional)
• Configuring Upstream Power Back-Off, page 12-21 (available only on the Catalyst 2950ST-24 LRE
997 switch) (optional)
• Configuring CPE Toggle, page 12-22 (optional)
• Configuring Syslog Export, page 12-23 (optional)

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