IBGP and local_pref

[pcela]

The IBGP session does not retain the local_pref from the EBGP session. In the absence of the "local-pref" option, prefixes have their local_pref changed to 100. After IBGP, prefixes should be passed without modifying "local_pref".

Expample (for pathvector)

    import filter {
        reject_bogon_asns();
        bgp_local_pref = 100; # pathvector:localpref
        honor_graceful_shutdown();
        bgp_large_community.add((XXXX,XXX,XXX));
        accept;
    };

and it should be:

    import filter {
        reject_bogon_asns();
        honor_graceful_shutdown();
        bgp_large_community.add((XXXX,XXX,XXX));
        accept;
    };