Cisco Versatile Interface Processor 4, Model 50 VIP4-50= データシート

製品コード

VIP4-50=

Cisco Systems, Inc.

Page 1 of 5

Data Sheet

Versatile Interface Processor 4

for Cisco

7500

Series Routers

The Versatile Interface Processor 4 (VIP4) for the high-end Cisco 7500 router series

enables high-performance switching, and scalable LAN and WAN intelligent

network services to meet the needs of high-performance WAN applications. It

provides over twice the distributed switching performance and twice the aggregate

bandwidth of previous model VIPs, employs higher-capacity memory modules for

rich IP services, and utilizes Error Correction Code (ECC) for increased system

availability. The VIP4 serves as an ideal platform for enterprise and service-provider

networks that require high performance and processing power to support

service-enabled edge and core applications.

Figure 1

Versatile Interface
Processor 4

The VIP4 is a highly configurable,

RISC-based, intelligent interface processor.

Up to two separate port adapters (PAs) can

be configured on each VIP4. PAs provide

the media-specific interfaces for the VIPs,

enabling the VIP4 configuration to be

optimized in terms of price, performance,

and density. More than 50 media-specific

LAN and WAN PAs are supported,

including Fast Ethernet, T1/E1, High-Speed

Serial Interface (HSSI), T3/E3, T3/E3 ATM,

multichannel T1/E1, multichannel T3/E3,

OC-3 ATM, packet over SONET (POS),

and OC-12 ATM.

The VIP4 greatly increases the switching

performance of the Cisco 7500 series and

serves as an ideal platform for new,

higher-speed, higher-density LAN and

WAN interfaces. On the Cisco 7500 series,

VIP4 distributed switching scales system

performance to over two million packets

per second (pps). In addition, the VIP4

features Single-Error-Correction,

Double-Error-Detection Code (SECDED)

logic, detecting and correcting single event

upsets within a data word. This enables

greater system resiliency and continued

system availability in the presence of a

single-event parity upset.

A key VIP4 feature is its ability to receive

and execute on route information provided

by the master Route Switch Processor

(RSP). Based on this route data, a VIP4 can

make its own Layer 3 switching decisions,

providing a scalable, distributed switching

architecture, called distributed switching

(DSW). Further, DSW scales

packet-processing throughput of a

VIP4-equipped router, and resources for

route policy and administration are

increased by off-loading the central

processor of packet-handling tasks.