|
|
Latest Articles |
Cisco
CCNA / CCNP: Frame Relay BECNs and FECNs
BECNs and FECNs aren´t just important to know for your Cisco CCNA and CCNP
certification exams - they´re an important part of detecting congestion
on a Frame Relay network and allowing the network to dynamically adjust its transmission
rate when congestion is encountered.
Cisco
CCNA Certification: Access List Details You...
To pass the CCNA exam, you have to be able to write and troubleshoot access lists.
As you climb the ladder toward the CCNP and CCIE, you´ll see more and more uses
for ACLs.
Cisco
CCNA Certification: Keep Your Most...
Imagine this. You have an appointment with a client to work on a server or router
install. A few minutes before you´re scheduled to be there, you decide there´s
something really good on TV you´d like to watch.
Cisco CCNA Certification: Port-Based Authentication
To pass your CCNA exam and earn this coveted certification, you must understand
the details of port-based authentication.
Ten IP Routing Details You Must Know!
To pass the BSCI exam and earn your CCNP, you´ve got to keep a lot of details
in mind. It´s easy to overlook the "simpler" protocols and services such as static
routing and distance vector protocols.
Cisco
CCNP / BCMSN Exam Tutorial: Multicasting..
Ever since you picked up your first CCNA book, you´ve heard about multicasting,
gotten a fair idea of what it is, and you´ve memorized a couple of reserved multicasting
addresses.
|
|
|
|
08.04.06
Certification Exam Review: Protocol Basics
By
Chris Bryant
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.
Create
Dynamic Talking Characters For Your Site.  |
|
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!
About the Author:
Chris Bryant, CCIE #12933, is the owner of The
Bryant Advantage. |