Cisco CCNA Certification Exam Tutorial: Distance Vector Command Review
Part of studying for CCNA exam success is keeping all these new commands straight in your head! And let’s face it, there are a lot of commands you need to know in order to pass the CCNA exam and earn that certification. Here’s a review of some very important distance vector and static routing commands you need to know, along with their proper usage and console output.
Bandwidth
IGRP makes a default assumption that any Serial interface running IGRP is connected to a T1 line, which runs at 1544 KBPS. With equal-cost load-balancing enabled by default, this may be an undesirable assumption.
To alter IGRPs assumption, use the bandwidth command on the serial interface in question. Note that this command does NOT actually affect the bandwidth available to the interface; it merely changes IGRPs assumption of the bandwidth.
R2#conf t
R2(config)#int s0
R2(config-if)#bandwidth 512
Clear ip route *
This command clears your routing table of all non-static and non-connected routes. In a lab environment, its very handy because it forces your routers...
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