BGP is Probably the most elaborate matters you’ll review when pursuing your CCNP, Otherwise quite possibly the most intricate. I'm sure from personal practical experience that Once i was earning my CCNP, BGP is the topic that gave me one of http://edition.cnn.com/search/?text=먹튀검증 the most hassle to start with. One thing I retain reminding right now’s CCNP candidates about, although, is always that no Cisco technology is unattainable to know if you simply crack it down and have an understanding of the basics before you start trying to be familiar with the more sophisticated configurations.
BGP attributes are one these types of matter. You’ve bought effectively-regarded necessary, properly-regarded discretionary, transitive, and non-transitive. Then you really’ve got Each individual individual BGP attribute to recollect, as well as the buy through which BGP considers attributes, and what characteristics even are… plus a great deal far more! As with all other Cisco subject matter, we need to wander in advance of we will run. Enable’s take a look at what characteristics are and what they do in BGP.
BGP characteristics are very similar to what metrics are to OSPF, RIP, IGRP, and EIGRP. You received’t see them mentioned inside a routing table, but characteristics are what BGP considers When picking the best path into a destination when several legitimate (loop-cost-free) paths exist.
When BGP has to make your mind up amongst this sort of paths, There is certainly an buy wherein BGP considers the path characteristics. For success over the CCNP tests, you have to know this get. BGP appears to be like at path characteristics During this buy:
Optimum weight (Cisco-proprietary BGP benefit)
Greatest area choice (LOCAL_PREF)
Prefer domestically originated route.
Shortest AS_PATH is chosen.
Choose route with lowest origin code. Inner paths are most well-liked about exterior paths, and external paths are most well-liked in excess of paths using an origin of “incomplete”.
Cheapest multi-exit discriminator (MED)
Exterior BGP 먹튀검증 routes favored in excess of Internal BGP routes.
If no exterior route, find path with least expensive IGP Charge to the next-hop router for iBGP.
Decide on most up-to-date route.
Decide on most affordable BGP RID (Router ID).
When you don’t know very well what these values are, or how they’re configured, don’t worry! The subsequent various parts of this BGP tutorial will describe everything. So invest some time learning this buy, and in part II of this no cost BGP tutorial, we’ll have a look at each of such values in detail. Maintain researching!
