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Integrated IS-IS Commands for CCNP BSCI

Sample Chapter is provided courtesy of Cisco Press.
Date: Dec 7, 2007.

Chapter Information

Chapter Description

This chapter provides information and commands concerning a wide range of Intermediate System-to-Intermediate System (IS-IS) topics related to the CCNP BSCI exam.

From the Book

CCNP BSCI Portable Command Guide

$34.99

Rules for IS-IS Adjacencies

L1 routers form L1 adjacencies with L1 and L1-L2 routers in their area.
L2 routers form L2 adjacencies with L2 and L1-L2 routers in their area or another area.
L1/L2 routers form L1 and L2 adjacencies with each other in their area or another area.
An L1 router does not form an adjacency with an L2 router, regardless of area.
The system ID must be unique to each router.
Hello intervals and hold times do not have to match.

8. Routing Metrics | Next Section Previous Section

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