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industry-leading ease ofuse and thehighest resiliency availablefor stackable switches.This product series represents
thenextgeneration in desktop switches,andfeaturesStackWisetechnology,a32-Gbps stack interconnectthatallows
customers to build a unified, highly resilient switching system—one switch at a time. The Catalyst 2970 Series
switches are affordable Gigabit Ethernet switches that deliver wire-speed intelligent services for small and medium
businesses and enterprise branch offices. Featuring a complete set of intelligent services, the Catalyst 2970 Series
switches can enhance network performance and increase productivity. At speeds of 1000 Mbps, Gigabit Ethernet
provides the bandwidth that networks need to meet new and evolving network demands, alleviate bottlenecks, and
boost performance while increasing the return on existing infrastructure investments.
Table 1 lists features and benefits of the Cisco Catalyst 2948G-GE-TX Gigabit Ethernet Switch.
Table 1 Product Features and Benefits
Feature Benefit
Ease of use and
deployment
• Dynamic Host Configuration Protocol (DHCP) autoconfiguration of multiple switches
through a boot server eases switch deployment.
• Autosensing on each non-SFP port detects the speed of the attached device and
automatically configures the port for 10-, 100-, or 1000-Mbps operation, easing switch
deployment in mixed 10, 100, and 1000BASE-T environments.
• Autonegotiating on all ports automatically selects half- or full-duplex transmission mode
to optimize bandwidth.
• Dynamic Trunking Protocol (DTP) enables dynamic trunk configuration across all switch
ports.
• Port Aggregation Protocol (PAgP) automates the creation of Cisco Fast EtherChannel
groups or Gigabit EtherChannel groups to link to another switch, router, or server.
• Link Aggregation Control Protocol (LACP) allows the creation of Ethernet channeling
with devices that conform to IEEE 802.3ad. This feature is similar to Cisco EtherChannel
technology and PAgP.
• DHCP Relay allows a DHCP relay agent to broadcast DHCP requests to the network
DHCP server.
• IEEE 802.3z-compliant 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX, 1000BASE-T and
coarse wavelength division multiplexing (CWDM) physical interface support through a
field-replaceable SFP module provides unprecedented flexibility in switch deployment.
• To help ensure that the switch can be quickly connected to the network and can pass
traffic with minimal user intervention, there is a default configuration stored in Flash.
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