Specifications

Chapter 7 Broadband and Dial Access
7-22
Cisco MGX 8830 ATM Multiservice Switch
For More Information
See the Cisco MGX 8850 Web site: http://www.cisco.com/go/mgx8850
Cisco MGX 8830 ATM Multiservice Switch
The Cisco MGX 8830 Advanced ATM Multiservice Switch extends a full suite of
narrowband interfaces and broadband trunking to remote sites with low density and high
service mix requirements, using PNNI and MPLS are used for flexible network and services
evolution. The Cisco MGX 8830 has a switching capacity of up to 1.2 Gbps and acts as a
standalone switch. It offers a full range of service interfaces.
For More Information
See the Cisco MGX 8830 Series Web site: http://www.cisco.com/go/mgx8830
Cisco Long Reach Ethernet Solution
Cisco LRE enables the transport of symmetrical, bi-directional data
over unshielded, copper twisted-pair telephone wires originally
intended for the frequency bands used for traditional telephone voice services (300 Hz and
3.4 KHz). The system employs Frequency Division Duplexing (FDD) to separate the
downstream channel, the upstream channel, and POTS, ISDN, or PBX signaling services in
the frequency domain. This enables users to overlay LRE on existing POTS, ISDN, or
analog PBX signaling services without disruption, extending intelligent Ethernet services at
distances of up to 5000 over existing phone or legacy wiring. Both LRE and
POTS/ISDN/analog PBX services may be transmitted over the same line without interfering
with each other.
The Cisco 2950 LRE solution includes the Cisco Catalyst® 2950 LRE switches, the Cisco
575 and 585 LRE Customer Premise Equipment (CPE) devices, and the Cisco LRE POTS
Splitter. Each LRE link is terminated with either the Cisco 575 or 585 LRE CPEs, and a
POTS splitter is required when POTS traffic coexists with the LRE link over the same line.
Catalyst 2950 LRE Series Intelligent Ethernet Switches
The Cisco Catalyst® 2950 LRE switches are fixed-configuration, stackable models that
provide wire-speed LRE and Gigabit Ethernet connectivity for small and midsized
networks. The Catalyst 2950 Series is an affordable product line that brings enhanced
security, high availability and advanced quality of service (QoS), to the network edge-while
maintaining the simplicity of traditional LAN switching. When a Catalyst 2950 LRE switch
is combined with a Catalyst 3550 Series switch, the solution can enable IP routing from the
edge to the core of the network. Embedded in Catalyst 2950 Series switches is the Cisco
Cluster Management Suite (CMS) Software, which allows users to simultaneously
configure and troubleshoot multiple Catalyst desktop switches using a standard Web
browser. In addition to CMS, Cisco Catalyst 2950 LRE switches provide extensive
management tools using Simple Network Management Protocol (SNMP) network
management platforms such as CiscoWorks for Switched Internetworks.
The two built-in Gigabit Ethernet SFP ports support 1000BASE-SX and 1000BASE-LX
modules. The dual SFP-based and copper Gigabit Ethernet implementation provides
customers with tremendous deployment flexibility-allowing customers increased
availability with the redundant uplinks. High levels of stack resiliency can also be
implemented by deploying dual redundant Gigabit Ethernet uplinks and UplinkFast
technologies for high-speed uplink and stack interconnection failover, and Per VLAN
Spanning Tree Plus (PVST+) for uplink load balancing.