Cisco CCNP / BSCI Certification: BGP Route Reflector Tutorial

Cisco CCNP / BSCI Certification: BGP Route Reflector Tutorial When you’re studying for your BSCI exam and CCNP certification, you quickly realize that BGP is a whole new world from anything you’ve previously studies. One topic that sometimes confuses CCNP candidates is when a BGP route reflector needs to be configured. In the following example, … Continue reading Cisco CCNP / BSCI Certification: BGP Route Reflector Tutorial

Cisco CCNP / BSCI Certification: BGP Route Reflector Tutorial

When you’re studying for your BSCI exam and CCNP certification, you quickly realize that BGP is a whole new world from anything you’ve previously studies. One topic that sometimes confuses CCNP candidates is when a BGP route reflector needs to be configured.

In the following example, the routers R1, R2, and R3 are all in BGP AS 100. This is not a full mesh, however. There are peer relationships between R1-R2 and R1-R3, but not between R2 and R3. R3 is advertising network 3.3.3.0/24 via BGP, and the route is seen on R1. R1’s iBGP neighbor, R2 does not see the route.

A basic rule of BGP is that a BGP speaker cannot advertise a route to an iBGP neighbor if that route was learned from another iBGP neighbor. Configuring R1 as a route reflector will allow us to circumvent this rule. The entire route reflector process is transparent to the clients, and no configuration is necessary on those clients. We’ll configure R1 as a route reflector for both R2 and R3.

R1(config)#router bgp 100

R1(config-router)#neighbor 172.12.123.2 route-reflector-client

3d18h: %BGP-5-ADJCHANGE: neighbor 172.12.123.2 Down RR client config change

R1(config-router)#neighbor 172.12.123.3 route-reflector-client

3d18h: %BGP-5-ADJCHANGE: neighbor 172.12.123.3 Down RR client config change

The BGP adjacencies do come down when this configuration is added, so this isn’t something you want to do during a peak traffic time.

Once the adjacencies come back up, R2 will have the route to 3.3.3.0/24.

There are other possible solutions to this iBGP limitation, such as configuring BGP confederations. Those solutions are generally used on larger BGP deployments and with other concerns in mind, though, and configuring route reflectors serves this purpose just as well.

Clear Your Browser Cache

When you use a web browser (Internet Explorer, Opera etc) and view web pages these files are automatically saved on your computer. These are known as browser cache or temporary internet files.

Each browser users a different location on your computer to save its cache, and each browser has its own way of clearing this cache. If these arent cleaned out regularly they can consume a large amount of space on your computer!

Below we show you a step by step method for cleaning browsers, Internet Explorer, Opera and Firefox.

Internet Explorer
The first step in clearing the cache/temporary internet files for Internet Explorer is to open a browser window, and select Tools from the top menu and then select Internet Options (last item).

Once this window loads up, we are looking for the Delete Files button. Click this button then tick the box Delete all offline content, then click Ok. This can take a while to process if there is a lot of files to delete. Once done, click Ok and close the control panel window.

Opera
To clean the cache in Opera open the browser then select Tools from the top menu, and go down to Preferences. On the left hand side of the preferences screen, click the label History and Cache. On the right side of the window you will have a button that says Empty now, select this button. If you have a lot of files in the cache this can take a while to process. Once done, click Ok then close the browser window.

Firefox
Cleaning Firefoxs cache is similar to the other browsers. First, open a Firefox browser window, and click Tools from the top menu. Then go down to Options. When the window has opened click on the Privacy icon (on the left). On the right hand screen, you will have a button down the bottom that says Clear, which is to the right of the word Cache. Click this button to clear the Firefox cache. Once done, click Ok and close the browser window.

Where To Get Hot Myspace Layouts

Since Myspace is one of the fastest growing sites on the Internet, make sure, they are the hot favorite of visitors. There are an incredible number of features that can be brought on the Myspace account. There are hot favorites as well as those used in a traditional manner. However, it is imperative for the users to go in for pretty layouts that can host a number of features.

Look for free layouts for the Myspace page using the search engines Google and Yahoo! The search will throw up hundreds of pages. There will be a plenty of options for people to download the layouts. They come in all kinds of styles. All the colors featured in the rainbow and attractive new colors are also included in the layout. Go through the options carefully before downloading and installing the layouts on the account since they are flexible.

A good way of accessing layouts is to look for the search engines on the Internet. Popular search engines such as Yahoo! and Google drive a lot of Internet traffic for the users. Therefore, the Myspace page should have better features and profiles that can drive more people to the account. The most preferred route to attract more visitors to the site is to have an attractive background to the Myspace web page. The attractive layouts can be designed by the user of Myspace on their own by employing the desktop tools. However, these will be basic layouts and cannot be upgraded to a higher level. Besides, they cannot be changed whenever desired. Once the design of the layout is frozen, altering will take time. However, the updates will be minimal and rich features cannot be added to the layout. Eventually the traffic to the site could be less than the desired level. The best way to ensure that the layout is done in a professional manner is to employ the tools available on the Internet.

Hot layouts of the Myspace page are available on the Internet. Use the popular search engines such as Google to seek out the layouts. Type the words Myspace layouts in the space provided for search. It will throw up a number of pages that will have links to the layouts of the Myspace page. There are two categories of links. The first category of links provides connectivity to layouts that is available for free. The second category of links provides connectivity to layouts that is licensed. They can be accessed against payment of certain fee. The layouts come in various shapes and colors that can be chosen by the user.

The hot Myspace layouts are in great demand. They are also based on various themes and subjects. Most of the Internet sites offering the hot layouts are updated on a daily basis. The downloading of the hot Myspace layouts is easy. Either you can download the layout as a whole or seek out the codes. The codes are very important while installing the layout. Any mistake could upset the page. Therefore, the codes should be downloaded carefully.