Cisco Systems MGX and SES Manuel d'utilisateur télécharger pdf (Page 41)

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Cisco PNNI Network Planning Guide for MGX and SES Products, Release 5

Part Number OL-3847-01 Rev. D0, April, 2004

Chapter 1 Introduction to PNNI

PNNI Internetworking with IISP

Figure 1-6 Example PNNI Internetworking with AINI Topology

PNNI Internetworking with IISP

Interim Inter-Switch Protocol (IISP) is the predecessor to AINI and serves the same purpose as AINI,

which is to link two independent PNNI networks. Unlike AINI, IISP does not support all UNI 4.0

features.

Note Standards-based IISP supports SVC and SVP connections. Cisco has enhanced IISP to also support

CBR1, rt-VBR1, rt-VBR2, rt-VBR3, nrt-VBR1, nrt-VBR2, and ABR SPVC and SPVP connections.

If the border nodes between two independent PNNI networks support AINI, you should use AINI for any

links between them. The only time you should use IISP is when one or both of the border nodes do not

support AINI.

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PNNI network

AINI

PNNI network

AINI

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Cisco Systems MGX and SES Manuel d'utilisateur Page 41