Any time you’re preparing to move the BSCI Examination and generate your CCNP certification, amongst the most significant challenges is Studying BGP. BGP is totally https://en.search.wordpress.com/?src=organic&q=먹튀검증 distinctive from any protocol you acquired to make your CCNA certification, and among the list of differences is that BGP utilizes path characteristics to favor a single route over One more when many paths to or from the destination exist.
Observe I claimed 먹튀검증업체 “to or from”. In previously absolutely free BGP tutorials, I discussed the BGP characteristics “weight” and “neighborhood choice”. These characteristics are utilized to favor a person route into a place above A further; by way of example, if BGP AS a hundred has two paths to your destination in AS 200, both of these attributes might be established in AS one hundred to favor a person path about Yet another. But Imagine if AS one hundred desires to inform the routers in AS 200 concerning which path it should use to achieve a supplied desired destination in AS 100?
That’s exactly where the BGP attribute “Multi-Exit Discriminator”, or MED, comes in. The MED value may be set in AS a hundred to tell AS 200 which route it should really use to reach a specified network in AS 100.
As with numerous BGP attributes, the MED can be set with a route-map. What you'll want to observe is that there's no “set med” price in route maps. To change the MED of the route, you should alter the metric of that path. Let’s say that there are two entry paths for AS 200 to utilize to reach Locations in AS one hundred. You need AS 200 to use the one hundred.one.1.0/24 route above the a hundred.two.2.0/24 path. To start with, determine the two paths with two individual ACLs.
R1(config)#accessibility-record 22 permit a hundred.one.one.0 0.0.0.255
R1(config)#access-checklist 23 allow one hundred.two.2.0 0.0.0.255
Upcoming, create a route-map that assigns a lessen metric to the more-attractive route.
R1(config)#route-map PREFER_PATH allow 10
R1(config-route-map)#match ip handle 22
R1(config-route-map)#set metric a hundred
R1(config-route-map)#route-map PREFER_PATH allow twenty
R1(config-route-map)#match ip address 23
R1(config-route-map)#set metric 250
Eventually, use the route-map towards the neighbor or neighbors.
R1(config-route-map)#router bgp a hundred
R1(config-router)#neighbor 22.2.two.2 route-map PREFER_PATH out
The main element factors to remember is always that though quite a few BGP characteristics like the next value, the MED is essentially an exterior metric – plus a decreased metric is preferred, just as With all the protocols you’ve already analyzed to generate your CCNA certification.