Hi Experts Firstly, I want to explain the difference between Cisco & Juniper regarding the as-path attribute in BGP routes and how they overcome the routing loops for BGP routing between PE-CE.
Cisco : send the BGP routes to the EBGP neighbor and the checking of the as-path attribute is responsibility of received neighbor and if the received as-path include the local AS number the route is rejected so that the (allow-as in) feature can override this action in the local router or (as-override) feature in the sender EBGP neighbor's router. Juniper: Before sending the BGP route the sender check the as-path attribute and if it include AS number of the received neighbor it won't send the route, so that the (As-override) feature is an option to allow this routes to be sent but there isn't meaning for (loops ) feature which equivalent to (Cisco allow-as in) feature where the route won't be received unless sender check no routing loops may occur. So that, in juniper no need for (loops) command, or SOO where even if there is backdoor link in CE multi-homed site for the same reason (the PE or the sender always check the BGP routes as-path before sending it). Thanks in advance for your support Best Regards, Mohamed Edrees _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp