Hi all, By default when bgp router sends update ...does it sets DF bit ? question 1
in this case if the size of update packet let say is larger than MTU of any of transit links ..then any transit router upon reception of DF marked bgp update packet send an ICMP error , if icmp is filtered due to any firewall then originating router will not reduce the MSS and this results in oscilaitng bgp sessions http://nagendrakumar-nagendra.blogspot.com/2010/03/bgp-path-mtu-discovery.html does any one have experinced the same or can comment on this ? 2) if bgp path mtu is enabled by default ..then do the router undergo path mtu discovery ..and figures out lowest mtu of transit links and then adjusts the [mss = lowes mtu - (ip headers) - (tcp headers) ] ..? _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
