Download Building Scalable Cisco Internetworks. Student Guide by Cisco Systems PDF

By Cisco Systems

This module explains why it can be crucial to govern routing details. in the course of course redistribution among IP routing domain names, suboptimal routing can take place with out manipulation. There also are instances whilst routing details might waste bandwidth on a router interface simply because routing info isn't needed.This module offers an outline and examples of how you can enforce the controls defined above with Cisco platforms units.

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Com/go/iin „ Cisco Systems, Inc. Service-Oriented Network Architecture. com/go/sona © 2006 Cisco Systems, Inc. , for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study. , for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

If one is found, DUAL uses it, avoiding the need to recompute the route. If no suitable feasible successor exists, a recomputation must occur to determine the new successor. Although recomputation is not processor-intensive, it does affect convergence time, so it is advantageous to avoid unnecessary recomputations. © 2006 Cisco Systems, Inc. , for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

2006 Cisco Systems, Inc. , for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study. Configuring EIGRP 2-15 Calculating the EIGRP Metric This topic describes how the EIGRP metric is calculated. EIGRP Metric Calculation • By default, EIGRP metric: Metric = bandwidth (slowest link) + delay (sum of delays) • Delay = sum of the delays in the path, in tens of microseconds, multiplied by 256 • Bandwidth = [107 / (minimum bandwidth link along the path, in kilobits per second)] * 256 • Formula with default K values (K1 = 1, K2 = 0, K3 = 1, K4 = 0, K5 = 0): Metric = [K1 * BW + ((K2 * BW) / (256 – load)) + K3 * delay] • If K5 not equal to 0: Metric = metric * [K5 / (reliability + K4)]: © 2006 Cisco Systems, Inc.

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