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Cisco Systems, Inc.
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Catalyst 2900 LRE XL Desktop Switches
Cisco Catalyst 2900 LRE XL switches are based on the
Ciscomarket-leadingCatalyst2900SeriesXL3.2-Gbps
switch architecture, and include all Enterprise- class
features (all ports) available in Catalyst 2900 XL
switches. Now, service providers can use the
industry-leading Catalyst switch platform to address a
broad range of wiring environmentsbeyond Category5
cabling.This givesusers a low-cost,end-to-endsolution
and eliminates the need to train installation teams on
multiple systems.
The Catalyst 2924 LRE XL has 24 Long-Reach
Ethernet ports and four 10/100 Ethernet ports; the
Catalyst 2912 LRE XL has 12 LRE ports and four 10/
100 Ethernet ports. Both switches are one rack-unit
(1RU) high, 13-inches deep, and can be either mounted
on a wall or placed on a rack. In addition, Cisco LRE
switches feature integrated LRE technology, which
meansthattheydonot require anexternalmodempool.
The result is a compact, cost-effective form factor that
allows service providers and building owners to build
high densities with a minimum footprint.
Catalyst 2900 LRE XL switches deliver dedicated
bandwidth per port at rates up to 15 Mbps. LRE
transmissions coexist with POTSand ISDN, and can be
compatible with ADSL trafficin the same building. The
switches can be configured on a per-switch basis to
support the following modes:
• 5 Mbps symmetrical rate (up to 5,000-feet distance)
• 10 Mbps symmetrical rate (up to 4,000 feet)
• 15 Mbps symmetrical rate (up to 3,500 feet)
The Catalyst 2924 LRE XL and2912 LRE XLswitches
provide fast and easy connectivity into building patch
panels with one RJ-21 telco connector. The 10/100
Ethernet ports can be used to connect servers,
daisy-chain multiple LREswitches, oruplink to a Cisco
Catalyst 3500 XL, 2900 XL, or 2948G-L3 10/100
Ethernet switch. These connectivity options provide
multiple price/performance options to meet building
and budget requirements.
The Cisco LRE switches provide the important features
necessary for robust networks:
• Quality of Service: 802.1p QoS support. Provides
high- and low-priority queuing on a per-port basis.
Layer 3 QoS support—including DiffServe and
application-based queuing—when Catalyst
2924 LRE XL and 2912 LRE XL switches are
aggregated by a Layer 3 switch.
• Scalability: Up to 15-Mbps symmetric performance
over single-pair wiring. Fast EtherChannel
®
port
aggregation.
• Security: 802.1Q port-based virtual local-area
network (VLAN) support. Cisco private VLAN
access, assuring port security without requiring a
VLAN per port. Access control list (ACL) security
when a LRE switch is aggregated by a Cisco Layer 3
10/100 Ethernet switch.
• Network Management: Cisco Switch Clustering
technology and the advanced, Web-based Cisco
Cluster Management Suite (CMS) software deliver
easy-to-use configuration and ongoing monitoring
and management of up to 16 switches in multiple
building sites from the point-of-presence (POP).
This software is embedded in the Catalyst
2924 LRE XL and 2912 LRE XL switches and
delivers remote, intuitive management of clustered
switches and connected Cisco 575 LRE and 585
LRE CPE devices through a single IP address. Cisco
Catalyst LRE switches also feature Cisco IOS
®
software and command-line interface (CLI),
deliveringcommonsoftwaresupportandCLIacross
both Cisco router and switch platforms.