Tags |
|
|
Links |
|
|
Answer Upon - Cisco CCNP / BSCI Exam Tutorial: The BGP Attribute MED
You may often find yourself wondering why some individuals struggle to exist while others have an abundance of wealth. The key to all this is the mindset of the individuals. Those who are wealthy have what many refer to as a millionaire mind. This millionaire mind is a different way of thinking that separates those who a
Flag: 0x208
Advertised to non peer-group peers:
172.12.123.3
234
172.12.123.3 from 172.12.123.3 (3.3.3.3)
Origin IGP, localpref 100, valid, external
234
172.12.123.2 from 172.12.123.2 (2.2.2
In public speaking, fear may be viewed as a negative influence leading to ineffective communication. This fear of public speaking can even dictate how your speech will go. Fear can easily be perceived by an audience through physical manifestations on the part if the public speaker: hands cold and clammy,
The MED attribute is sent from a router or routers in one AS to another AS to indicate what path the remote AS should use to send data to the local AS.
That sounds a little confusing on paper, so let's walk through an example. R1 is in AS 1, and R2, R3, and R4 are in AS 234. R4 is advertising a loopback into BGP, and R1 has two possible next-hops to get to that loopback - R2 (172.12.123.2) and R3 (172.12.123.3). Let's see which of the two paths R1 is using.
R1#show ip bgp 4.4.4.4
BGP routing table entry for 4.4.4.4/32, version 8
Paths: (2 available, best #2, table Default-IP-Routing-Table)
Flag: 0x208
Advertised to non peer-group peers:
172.12.123.3
234
172.12.123.3 from 172.12.123.3 (3.3.3.3)
Origin IGP, localpref 100, valid, external
234
172.12.123.2 from 172.12.123.2 (2.2.2
Thinking about changing your career... but worried that you may not have the background or qualifications to make the change?In some cases, you're right to be worried. Some careers do require you to possess specific qualifications and experience.However... it could be that your concern isn't warranted at al
The MED attribute is sent from a router or routers in one AS to another AS to indicate what path the remote AS should use to send data to the local AS.
That sounds a little confusing on paper, so let's walk through an example. R1 is in AS 1, and R2, R3, and R4 are in AS 234. R4 is advertising a loopback into BGP, and R1 has two possible next-hops to get to that loopback - R2 (172.12.123.2) and R3 (172.12.123.3). Let's see which of the two paths R1 is using.
R1#show ip bgp 4.4.4.4
BGP routing table entry for 4.4.4.4/32, version 8
Paths: (2 available, best #2, table Default-IP-Routing-Table)
Flag: 0x208
Advertised to non peer-group peers:
172.12.123.3
234
172.12.123.3 from 172.12.123.3 (3.3.3.3)
Origin IGP, localpref 100, valid, external
234
172.12.123.2 from 172.12.123.2 (2.2.2
If you are looking to start a home business or trying to make your home business more successful, there are tons of information and resources available that can help.Many entrepreneurs turn to home business resources when they hit a snag or don’t know how to capitalize on an idea. There are many ways to learn fro
That sounds a little confusing on paper, so let's walk through an example. R1 is in AS 1, and R2, R3, and R4 are in AS 234. R4 is advertising a loopback into BGP, and R1 has two possible next-hops to get to that loopback - R2 (172.12.123.2) and R3 (172.12.123.3). Let's see which of the two paths R1 is using.
R1#show ip bgp 4.4.4.4
BGP routing table entry for 4.4.4.4/32, version 8
Paths: (2 available, best #2, table Default-IP-Routing-Table)
Flag: 0x208
Advertised to non peer-group peers:
172.12.123.3
234
172.12.123.3 from 172.12.123.3 (3.3.3.3)
Origin IGP, localpref 100, valid, external
234
172.12.123.2 from 172.12.123.2 (2.2.2
We invest to create work… We work to earn… Our earning is the profit….. Yes, here we are talking about business. This process of converting investments to profit starts at our mind in form of ideas. These ideas need to be realized through apt funding at the right time. You need to know that these small ideas can lead you
R1#show ip bgp 4.4.4.4
BGP routing table entry for 4.4.4.4/32, version 8
Paths: (2 available, best #2, table Default-IP-Routing-Table)
Flag: 0x208
Advertised to non peer-group peers:
172.12.123.3
234
172.12.123.3 from 172.12.123.3 (3.3.3.3)
Origin IGP, localpref 100, valid, external
234
172.12.123.2 from 172.12.123.2 (2.2.2
Stock research is the investment of time in learning more about the stock that is in question. You realize that you need to know basics about a stock but how can you make a decision based on the stock if you have not done your research on it? You can not. Because stock research is so vitally important to predicting wh
Flag: 0x208
Advertised to non peer-group peers:
172.12.123.3
234
172.12.123.3 from 172.12.123.3 (3.3.3.3)
Origin IGP, localpref 100, valid, external
234
172.12.123.2 from 172.12.123.2 (2.2.2.2)
Origin IGP, localpref 100, valid, external, best
R1 is using 172.12.123.2 as the next-hop to enter AS 234. If all values are left at their default, we could have 100 routes being advertised from AS 234 to AS 1 and the next-hop would remain the same.
We can configure R2 and R3 to send different MED values to R1, and the router sending the lowest MED would be the preferred next-hop. (The MED is a metric, and the lowest metric is always preferred.) We'll configure the MED attribute on both R2 and R3, sending a MED of 200 from R2 and 100 from R3.
R2(config)#route-map SET_MED_200 permit 10
R2(config-route-map)#set metric 200
R2(config-route-map)#router bgp 234
R2(config-router)#neighbor 172.12.123.1 route-map SET_MED_200 out
R3(config)#route-map SET_MED_100 permit 10
R3(config-route-map)#set metric 100
R3(config-route-map)#router bgp 234
R3(config-router)#neighbor 172.12.123.1 route
HTTP = HTML link (for blogs, profiles,phorums):
<a href="http://www.hubyou.info/article/171158/hubyou-Cisco-CCNP--BSCI-Exam-Tutorial--The-BGP-Attribute-MED.html">Cisco CCNP / BSCI Exam Tutorial: The BGP Attribute MED</a>
BB link (for phorums):
[url=http://www.hubyou.info/article/171158/hubyou-Cisco-CCNP--BSCI-Exam-Tutorial--The-BGP-Attribute-MED.html]Cisco CCNP / BSCI Exam Tutorial: The BGP Attribute MED[/url]
Related Articles:
Questions You Need to Ask When Bidding on Cleaning a Building
Playing The UK National Lottery Won't Solve Your Debt Problems
How to Compare Low Cost Long Term Care Insurance in Oregon
Bookmark it:
|