Hello, At the end of September we observed update from 262197 ASN with very large prepend (563) of origin ASN. It caused 2 problems. First of all, it wasn't properly counting AS_PATH length in octets, thereby forcing bgp neighbor speaker send NOTIFICATION and broke the session. Secondly, all AS_SEQUENCE from second to penultimate in AS_PATH were wrong due to forgetten offset.
First part of problem, that caused continious session flaps, was fixed with latest Quagga release (1.2.2). However, the encoded AS_PATH attribute is still malformed. So, we attach a patch to fix this problem.
0001-Fix-malformed-AS_SEQUENCE-segments-for-long-as-path.patch
Description: Binary data
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