Cisco C8510-SRP - Switch Route Processor Uživatelský manuál stáhnout pdf (Strana 4)

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Integrating the Catalyst 8500 into your Network

The Catalyst 8500 is optimized for campus backbone applications

and complements the capabilities of the Catalyst 5500 multilayer

switching platform and the Cisco 7500/7200 series routing

platforms. The Catalyst 8500 switch routers enable IP, IPX, IP

multicast, and bridging in hardware ASICs and thus can perform

packet switching at wirespeeds over Fast Ethernet and Gigabit

Ethernet interfaces and performs wire speed ATM switching up to

high-density OC-12 and OC-48 switching. They complement but

do not replace the Catalyst 5500 series or the Cisco 7500 series in

the campus backbone. One member of the Catalyst 8500 family,

the Catalyst 8510, can be integrated into the Catalyst 5500 to

boost the capability of existing Catalyst 5500s.

Collapsed Backbone LAN Routing

Collapsed backbone routing is deployed in most enterprises as a

means of centralizing routing capabilities into high- function

routers. Cisco routers provide the industry’s most versatile

high-end routing platforms, and most enterprises have deployed

them for handling the routing requirements in their networks.

Cisco routers provide high-performance and high-function

routing capabilities by combining powerful packet switching

hardware with intelligent network services built into Cisco IOS

software. The routing protocol implementations inherent to this

software, such as Enhanced Interior Gateway Routing Protocol

(EIGRP) and Open Shortest Path First (OSPF), are stable,

time-tested, and proven in the Internet and over 85 percent of

enterprises worldwide. Cisco’s high-end router series also

provides advanced functions, such as multiprotocol routing, SNA

integration, WAN aggregation, encryption, compression,

and voice-over-IP capabilities in a single platform. Cisco

continues to develop and build upon the high-end routers such as

the Cisco 7500 series by adding innovations such as the advanced

router system (ARS) to scale advanced services to perform at high

speeds.

The Catalyst 8500 series complements the performance and

services of the high-end router series by speciﬁcally enhancing

protocols such as IP and IPX. These protocols are routed at speeds

in excess of 20 million packets per second (pps) over Fast

Ethernet and Gigabit Ethernet interfaces. Because the Catalyst

8500 is a Cisco IOS platform, it integrates smoothly into an

existing Cisco router-based collapsed backbone routing

environment. Speciﬁcally, it incorporates the same routing

protocols and features that run on any enterprise-class Cisco

router.

A campus LAN that requires high-density Fast Ethernet and

Gigabit Ethernet routing for IP and IPX can seamlessly integrate

a Catalyst 8500 with existing Cisco routers by leveraging

protocols such as the Hot Standby Router Protocol (HSRP). The

ATM Circuit Emulation Service (CES) X

Catalyst 8510 Switch Route Processor (SRP)

Multiservice Switch Route Processor

(MSRP)

Cisco 7500 and the Catalyst 8500 can then work in tandem to provide high-performance, high-function routing for the campus backbone.

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