56 lines
2.2 KiB
Plaintext
56 lines
2.2 KiB
Plaintext
function net186_import_filter(int POPID)
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int viaRegion;
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bgppath public_bgp_path;
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{
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public_bgp_path = delete(bgp_path, [4200000000..4225479999]);
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if (LOCAL_ASN, 122, REGION) !~ bgp_large_community then bgp_large_community.add((LOCAL_ASN, 122, REGION));
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if bgp_large_community ~ [(LOCAL_ASN, 110, 0), (LOCAL_ASN, 110, 2), (LOCAL_ASN, 110, 20)] then bgp_local_pref = 500;
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else if bgp_large_community ~ [(LOCAL_ASN, 110, 1), (LOCAL_ASN, 110, 10)] then bgp_local_pref = 400;
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else bgp_local_pref = 300;
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viaRegion = 0;
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# Route is via Europe & Africa & Middle East
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if bgp_large_community ~ [(LOCAL_ASN, 122, 100), (LOCAL_ASN, 122, 300..310), (LOCAL_ASN, 122, 600), (LOCAL_ASN, 121, 100), (LOCAL_ASN, 121, 300..310), (LOCAL_ASN, 121, 600)] then viaRegion = viaRegion + 1;
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# Route is via or locate America
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if bgp_large_community ~ [(LOCAL_ASN, 122, 200..299), (LOCAL_ASN, 121, 200..299)] then viaRegion = viaRegion + 1;
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# Route is via or locate East Asia & Oceania
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if bgp_large_community ~ [(LOCAL_ASN, 122, 400..500), (LOCAL_ASN, 121, 200..299)] then viaRegion = viaRegion + 1;
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if viaRegion >= 2 then bgp_local_pref = bgp_local_pref - 50 * viaRegion;
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# Route is via China mainland but not advertise in China mainland.
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if (LOCAL_ASN, 122, 430) ~ bgp_large_community && REGION != 430 && (LOCAL_ASN, 120, 430) ~ bgp_large_community then return false;
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bgp_local_pref = bgp_local_pref - filter(bgp_large_community, [(LOCAL_ASN, 122, *)]).len * 5;
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bgp_local_pref = bgp_local_pref - public_bgp_path.len * 10;
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if LOCAL_ASN ~ bgp_path then return false;
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return true;
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};
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function net186_export_filter(int POPID) {
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if (65535, 65282) ~ bgp_community then return false;
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if (65535, 65283) ~ bgp_community then {
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if (POPID / 10) != (POP / 10) then {
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return false;
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}
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}
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if (LOCAL_ASN, 125, POP) ~ bgp_large_community then {
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return false;
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}
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if (LOCAL_ASN, 126, REGION) ~ bgp_large_community then {
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return false;
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}
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if bgp_large_community !~ [(LOCAL_ASN, 120, *)] then bgp_large_community.add((LOCAL_ASN, 120, POP));
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if bgp_large_community !~ [(LOCAL_ASN, 121, *)] then bgp_large_community.add((LOCAL_ASN, 121, REGION));
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return true;
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}; |