CCDA 640-864 Official Cert Guide (Joanne Romanovich's Library) by Anthony Bruno & Steve Jordan

Author:Anthony Bruno & Steve Jordan
Language: eng
Format: epub
Publisher: Cisco Press
Published: 2011-06-20T16:00:00+00:00

RIPv2 Timers

RIPv2 timers are the same as in RIPv1. They send periodic updates every 30 seconds. The default invalid timer is 180 seconds, the hold-down timer is 180 seconds, and the flush timer is 240 seconds. You can write this list as 30/180/180/240, representing the U/I/H/F timers.

RIPv2 Design

Things to remember in designing a network with RIPv2 include that it supports VLSM within networks and allows for the summarization of routes in a hierarchical network. RIPv2 is still limited to 16 hops; therefore, the network diameter cannot exceed this limit. RIPv2 multicasts its routing table every 30 seconds to the multicast IP address 224.0.0.9. RIPv2 is usually limited to accessing networks where it can interoperate with servers running routed or with non-Cisco routers. RIPv2 also appears at the edge of larger internetworks. RIPv2 further provides for route authentication.

As shown in Figure 10-9, when you use RIPv2, all segments can have different subnet masks.

Figure 10-9. RIPv2 Design

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.