MGX 8800 Series
The Cisco MGX 8800 series wide−area edge switches integrate Cisco IOS software IP capabilities and
carrier−class ATM in a single platform. The MGX 8850 switch enables delivery of differentiated services
while scaling from DS0 to OC−48c/STM−16 speeds. The MGX platform provides a cost− effective edge
infrastructure for volume services, such as Frame Relay.
Key Features
Key features of the Catalyst 8800 series are as follows:
Flexible IP+ATM multiservice platform
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Scalable from 1.2− to 45Gbps of non−blocking throughput with a single chassis
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Managed by Cisco’s IP+ATM service management tools
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Services
Services provided by the Catalyst 8800 series include the following:
IP VPNs using Cisco IOS software−based multiprotocol label switching (MPLS)/tag switching
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Full suite of Voice Over IP, Voice Over ATM, and Voice Over Frame Relay capabilities with full
interworking
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High−density Point−to−Point protocol (PPP) for Internet access and aggregation
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SNA outsourcing
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Full−featured narrowband ATM for managed data, voice, and video services
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High−density broadband ATM for wholesale ATM services
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Circuit emulation for private line replacement
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The MGX 8850 wide−area edge switch is designed for carrier−class reliability. Every system component can
be configured for 100−percent redundancy, and all MGX 8850 switch modules can be removed and reinserted
without impacting service delivery or affecting the performance of other modules. Background diagnostics
continually monitor switch functions on active as well as standby modules, ensuring fault−tolerant operation.
As a result, Cisco wide−area switches routinely deliver high service availability.
The Cisco MGX 8850 switch supports industry−standard, automatic protection switching (APS) for all
Synchronous Optical Network (SONET) and Synchronous Digital Hierarchy (SDH) interfaces. If a fiber is cut
or a card fails, APS performs switching to the backup fiber within milliseconds.
The Cisco MGX 8850 switch provides cost−effective 1:n redundancy of service interfaces to enhance overall
reliability and service availability. With support of 1:n redundancy, a single standby service module will
automatically take over the traffic functions of any failed service module of the same type within seconds.
The MGX 8800 RPM supports all major routing protocols, including Internet Gateway Routing Protocol
(IGRP), Enhanced IGRP (EIGRP), Open Shortest Path First (OSPF), Intermediate System−to−Intermediate
System (IS−IS), Border Gateway Protocol 4 (BGP4), Routing Information Protocol (RIP) versions 1 and 2,
static routes, and route redistribution. It also supports many QoS features including Policy Based Routing,
QoS Policy Propagation via BGP, and Committed Access Rate.
Congestion management is provided with the following methods:
First in, first out queuing (FIFO)
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Priority queuing
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Custom queuing
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Weighted fair queuing (WFQ)
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Summary of Contents for Catalyst 1900 Series
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