Annu Roopa wrote: > > Group, > > I understand why BGP synch is needed but have some > clarifications.When we have scenario as below > > R10---------R1------R3-------R2---------R20 > Ebgp iBGP EBGP > > and R10 is in AS 100 and R1/R2/R3 in As200 and R20 in > As300.In this scenario R2 will not advertise routes > learnt thru R10 to R20 without having the routes in IP > table right ??? The questions are: > > 1. Assuming there is no IGP on R1/R2/R3 what are the > options of having the routes in R2 in its IP table. > Should we should have static routes for all networks ? > Any other way.
BGP/No synch :-) > > 2. When BGP (say on R2) looks for synchronization with > an IGP what does it look for as a match?? - the > network,mask and type (i mean IGP).They all should > match in IP table to what is advertised by BGP from > R10. network/mask. Iff IGP = OSPF, then also originating OSPF router-id should match iBGP neighbour router-id. > The reason i ask this is there are times when i have > seen the route in IP table is /16 bit but /24 in BGP > table (without *>) and it does not work.Also when the > route is say OSPF E2 type is does not work. > > 3.If there is are multiple entries in BGP table and i > do a traceroute will the path taken be the (*>, valid > best path) or according to the IP table. I guess *> > path should match up with IP table path am i right ? > in understanding this. Packets will follow FIB (i.e. routing table) next hop. > > ===== > Thanks in advance for ur time and replies. > Annu. > > __________________________________________________ > Do You Yahoo!? > Yahoo! - Official partner of 2002 FIFA World Cup > http://fifaworldcup.yahoo.com > _________________________________________________________________ > Commercial lab list: http://www.groupstudy.com/list/commercial.html > Please discuss commercial lab solutions on this list. -- Carlos G Mendioroz LW7 EQI Argentina Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=47617&t=47617 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
