Hello Guys,

As I am studying for BSCI great summary of each routing protocols for IPv4.

One detail that should be noted that this was done in English resumão (: S). Believe staff, I can think better in English now, especially for the study. As the summary is presented in topics is interesting for all.

For those who are studying for the CCNA is interesting to give a brief look to see what is out there and enjoy some topics that are scope of certification.

A Abrasive,

Maurício.

Below:

Big Resume

EIGRP:
- Cisco proprietary and distance vector protocol (hybrid).
- Incremental updates.
- Uses Dual and crazy metric with K-values (1,3, Bw e DLY default)
- Establishes neighbors and mainting 3 tables (neighbor, topology, routing table).
- Neighbors must match: authentication, subnet, k-values, hello and dead timers.
- Only protocol that supports unequal cost load-balancing and backup routes (Feasible sucessor).
- If FS > AD the router can be a Feasible Sucessor.
- If there isn’t a feasible sucessor the router sends queryes for its neighbors asking for the route.
- Stuck-in-Active (SIA) is when a network is so big that it searches through it. To solve, router stub or summarization.
- Support ip summary address eigrp in the interface for summarizing the networks.
- Support keychain MD5 and plaintext authentication per interface.
- Support percentage of bandwidth usage, very used in PVC links.
- If you redistribute into EIGRP and don’t set a default-metric the route don’t to go to the routing table, because metric = infinite.»Continuar lendo Summary of Routing Protocols - EIGRP + OSPF + ISIS + BGP

Hello Guys,

The topic is covered in BSCI routing and is expanded including a new version of IP protocol, the IPv6. This new protocol will provide many more tens of IPs compared to IPv4 is used today.

The IPv6 for many (including me) is very obscure and complicated, but if you study with attention and practice quite calm through laboratories you understand its operation, including giants such addresses.

The laboratory that I am offering I did to practice addressing, summarization and working with the OSPFv3 (OSPF for IPv6).

I setup a Multi-area as can be seen in the picture attached and made a summarization of some subnets to see your reflection in the routing table and OSPF in the LSAS. Remember, the OSPFv3 differs slightly from its predecessor on the LSAS, so stay tuned.

As the oldest IOSs not support the OSPFv3 was necessary to use the IOS 12.4 (T) 9, the router 7200. The image is available on this link in the folder IOS - Dynamips.

Emphasize that the configuration in NVRAM of the router is complete, and after setting everything TXTs that are in the file is the initial configuration.

Below the laboratory:

Lab IPv6 and Ospfv3 multiarea 7200

A Abrasive staff,

Maurício Bento Ghem

Hello Guys,

The blog following the flow of the author is also acquiring material for CCNP certification. Yesterday, continuing with the study Multicast finish my study and now started on the IPv6.

I contribute a laboratory that helped me in understanding the protocol PIM (Protocol independent Multicast) which is the protocol used in BSCI to create the routing tables multicast.

As there are two types of configuration of PIM, dense-mode and Sparse-mode, two laboratories were different and they both use the same topology (see Figure).

The laboratories are TXT files that are the initial settings. The settings are stored in NVRAM of router is the final, to be made tests. If you want to configure from scratch, feel at home. Below I provide them for download and use, pointing out that the router used is the 3600 with IOS 12.3 release 15 and download its IOS can be made in this link, paste IOS - Dynamips.

Download the laboratories can be made below:

Lab Multicast PIM-Dense Mode

Lab Multicast PIM Sparse-mode

Cheers,

Maurício.

Hello Guys,

Step in our continuing study of BGP, make them a great picture that shows the choice of the best route in BGP, which is available in the book:

CCNP BSCI - Official Exam Certification Guide, 4th edition. Written by: Brent Steward.

The BGP is the protocol that has the highest metric! It uses attributes and metrics is enormous because it is composed of several of these attributes.

The attributes available to do the tuning of BGP are shown below.

Abrasive and a success in the study.

Maurício.

Hello Guys,

Continuing the initiative of the blog to be reference in the study of Cisco Certifications, now present a summary of messages and states of the BGP protocol.

Below.

BGP messages:

• Open: When the BGP process starts are established connections to TCP port 179 to the BGP OPEN message.

• KeepAlive: KeepAlive indicating that the connection is still established.

• Update: update network messages. Sent early in the process and when updates occur on the network.

• Notification: When a neighbor restart Notification is sent a message indicating that the relationship is ending.

BGP states:

• Idle - Seeking neighbors.

• Connect - TCP connection established with neighbor

• Open Sent - BGP OPEN message sent

• Open Confirm - Response received

• Established - BGP neighbor Connection established.

Troubleshooting

• Established is good, rest is the problem.
• If the neighboring state of not progressing to Idle, verify that the next-hop is achievable.
• If the neighbor is in state Active is not configured or is not behaving as expected.
• Make sure the neighbor is correct: IP addresses, Autonomous System (AS), configuration and authentication.

A hug staff,

Maurício.

Hello staff,

I want to move this post what should be done to get the best return and performance in CCNA.

Do not think that the psychological impact on its result not of proof, influences, but indirectly. If you are 3 weeks studying much, just sleeping, tired, stressed, your mind is tired and tense.

Below, I share the process I made a day before the test to allow a rest of mind and total relaxation.

How do I check the proof for Monday I had the whole Sunday to relax. On this day before the test take a time to relax with friends, chat, share ideas and express their happiness and affection with the next.

We gauchos do that taking a mate and chatter. You can be sure you know what causes the opening and to brainstorm ideas.

Go to a park or a square to admire the nature and be in harmony with everything: nature, friends, everyone. It feels good just has to add.

At night, relax and sleep early and always take a deep breath, because the nervousness catch fire!

In agreeing to take a bath and a good place for something that shows 0 do feel good! Well you are right! CCNA is just that you do not know that!

These words are to show them that if you study enough and feel ready, you should rest and stay in harmony, not to have to face the test, and yes, PASS the exam! Note the difference.

Professional success and especially, spiritual.

A hug staff,

Maurício Bento Ghem.

Hello Guys,

To keep you informed of how my study is giving to the CCNP, starting with the proof BSCI, I have my list of chores to complete the study. The blog is also the few becoming a CCNP guide.

Today we finish the last of CBT Nuggets by Jeremy Cioara, and concludes that for the introduction of all concepts so easy and was very good. Now, it is necessary to establish the concepts and practice enough to stay in mind and more importantly, lead to career all that was learned.

I want to see the draft scheme that I needed to study the contents, because, unlike the CCNA certification where you can use the book of Mark, great source didactic content and very well explained for the CCNP books are those in which the CiscoPress content to me, is very sparse. It is placed muiiitos cases and artifacts that to my method of study just a little perplexed. I prefer to learn the concept, understand it and practice it to set well, but that is from each.

If you want to send any suggestions or bizarre scheme following this line hehehehe, very welcome.

Abrasive and a personal success for all!

Maurício Bento Ghem.

Hello Guys,

This post is dedicated to all who would like to know exactly what needs to be a CCNA, what he does and the opportunity for the CCNA.

The information below was transcribed directly from Cisco’s website Syllabus. This website contains information on all certifications and skills gained from them.

The CCNA certification validate the ability to install, configure, operate, and troubleshoot medium-size routed and switched networks. CCNA certified professionals have the knowledge and skills to make connections to remote sites via a WAN, mitigate basic security threats, and understand the requirements for wireless network access. CCNA training covers (but is not limited to) the use of these protocols: IP, Enhanced Interior Gateway Routing Protocol (EIGRP), Serial Line Interface Protocol Frame Relay, Routing Information Protocol Version 2 (RIPv2), VLANs, Ethernet, and access control lists (ACLs).

Source: Cisco CCNA Syllabus Website

I tried to create a version with translation Google Translator to lay more in English, but he accused the URL as invalid, so only in English.

In the same website you can follow all the other certifications and have an overview of the entire career in the Cisco and moths also have a goal for your career.

I hope it was useful for everyone, because I have much doubt that many of what exactly is a CCNA, and also what to do after achieving this title.

A Abrasive staff,

Success to everyone.

Maurício.

Hello Guys,

The key hit in my head this morning.

A firm commitment to help people who have the same goal that I, only I could achieve part of my goal.

I would now help you to get yours, so our goal CCNA Certification.

Through this post, I would leave a channel of contact for all who follow this blog to send me suggestions on topics that were in doubt on matters of evidence, psychological tips for preparation …

Anything you are interested in knowing who is in my power to help them.

Send any questions or suggestions to my email tópicospara, or if you wish add me on MSN.

Will the great pleasure to assist them.

Email: mauricio @ bentow. with. br

MSN: mbg_nh @ hotmail. with

I would also like to inform you that I have the goal of achieving the level of CCNP by the end of 2009. I will keep everyone informed about this new subject of study.

A Abrasive staff,

Success to us all.

Maurício Bento Ghem.

Hello staff,

Communicating the commitment, I am creating the topology of my first lab in Dynamips (GNS3). Make it below as it is a very good model to work for several issues of OSPF multiárea.

I remember all to modify the file. Net to find the correct path of IOS used. In this lab, we used 3620 routers.

For those who do not know, multi-area OSPF is proof BSCI contents of the CCNP.

For anyone who may be getting anxious to appear only the content CCNP test, relax. Continue posting tips, manuals and CCNA labs this blog to help all who have the same goal that I make sure to Cisco. Now, rising more and more.

Multi-area OSPF Lab of Dynamips.

A Abrasive,

Maurício.