Use the backdoor command for the particular network you want to be seen as better from the igp.
Regards, Joe Sanchez ( please excuse the brevity of this email as it was sent via a mobile device. Please excuse misspelled words or sentence structure.) On Nov 30, 2013, at 9:12 PM, Narendra Naukwal <[email protected]> wrote: > Hi Imran, > > Yes that is what I exactly meant. > Distance in BGP is used for competing with other protocols only. In other > routing protocols (like EIGRP) distance can be tweaked to choose internal > over erxternal, however, that is not the case with BGP. > External routes are always preferred over internal & this is not based on > distance. > Here is a detailed analysis of why router selected external path: > > > 4#show ip bgp 1.1.1.0 > BGP routing table entry for 1.1.1.0/24, version 4 > Paths: (2 available, best #2, table Default-IP-Routing-Table) Advertised to > update-groups: 1 12 10.0.0.1 from 20.0.0.3 (20.0.0.3) Origin IGP, > metric 0, localpref 100, valid, internal 12 20.0.0.2 from 20.0.0.2 (20.0.0.2) > Origin IGP, localpref 100, valid, external, best Comparing two > paths as per the BGP path selection process. Comparing path 1 with path 2: > Both paths have reachable next hops Both paths have a WEIGHT of 0 Both paths > have a LOCAL_PREF of 100 Both paths are learned Both paths have AS_PATH > length 1 Both paths are of origin IGP Both paths have the same neighbor AS, > 12, so comparing MED. Both paths have a MED of 0 Path 2 is better than path 1 > because an external path is preferred over an internal path. {Not because of > distance but because the protocols developers wanted it to be this way :)} > This is the reason that the best path is #2As per the BGP best path selection > process, External is preferred if all the above > parameters are same. > > Thanks, > Narendra > > > > > > On Sunday, 1 December 2013 3:01 AM, Marko Milivojevic <[email protected]> > wrote: > >> changing AD of ebgp to 201 forces ibgp routes...to get into the routing >> table..... > > Imran - this statement is not correct. > > > -- > Marko Milivojevic - CCIE #18427 (SP R&S) > Senior CCIE Instructor / Managing Partner - IPexpert > :: Free Video Training: http://youtube.com/IPexpertInc > :: Social: http://twitter.com/@icemarkom | http://fb.me/ccie18427 > :: IPexpert: http://www.ipexpert.com/Communities | +1-810-326-1444 > _______________________________________________ > Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: > > iPexpert on YouTube: www.youtube.com/ipexpertinc _______________________________________________ Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: iPexpert on YouTube: www.youtube.com/ipexpertinc
