Cisco Ccna Ccnp Certification Exam Review Protocol Basics

Cisco Ccna Ccnp Certification Exam Review Protocol Basics



Cisco CCNA / CCNP Certification Exam Review: Protocol Basics
To earn your Cisco CCNA certification and pass the BSCI CCNP exam, you have to​ know your protocol basics like the back of​ your hand! To help you review these important concepts, here's a​ quick look at​ the basics of​ RIPv1, RIPv2, IGRP, and EIGRP.
RIPv1: Broadcasts updates every 30 seconds to​ the address 255.255.255.255 .​
RIPv1 is​ a​ classful protocol, and it​ does not recognize VLSM, nor does it​ carry subnet masking information in​ its routing updates .​
Update contains entire RIP routing table .​
Uses Bellman-Ford algorithm .​
Allows equal-cost load-balancing by default .​
Max hop count is​ 15 .​
Does not support clear-text or​ MD5 authentication of​ routing updates .​
Updates carry 25 routes maximum.
RIPv2: Multicasts updates every 30 seconds to​ the address 224.0.0.9 .​
RIPv2 is​ a​ classless protocol, allowing the use of​ subnet masks .​
Update contains entire RIP routing table .​
Uses Bellman-Ford algorithm .​
Allows equal-cost load-balancing by default .​
Max hop count is​ 15 .​
Supports clear-text and MD5 authentication of​ routing updates .​
Updates carry 25 routes maximum.
IGRP: Broadcasts updates every 90 seconds to​ the address 255.255.255.255 .​
IGRP is​ a​ Cisco-proprietary protocol, and is​ also a​ classful protocol and does not recognize subnet masking .​
Update contains entire routing table .​
Uses Bellman-Ford algorithm .​
Equal-cost load-balancing on by default; unequal-cost load-sharing can be used with the variance command .​
Max hop count is​ 100 .​

EIGRP: Multicasts full routing table only when an​ adjacency is​ first formed .​
Multicasts updates only when there is​ a​ change in​ the network topology, and then only advertises the change .​
Multicasts to​ 224.0.0.10 and allows the use of​ subnet masks .​
Uses DUAL routing algorithm .​
Unequal-cost load-sharing available with the variance command.
By mastering the basics of​ these protocols, you're laying the foundation for success in​ the exam room and when working on production networks .​
Pay attention to​ the details and the payoff is​ CCNA and CCNP behind your name!




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