frnkblk

3 ms·

1. 1.▲
   by frnkblk 8y ago

   You are correct, the problem started only after placing new Arista border routers. The previous border routers were not doing ECMP. The issue was a combination of the use of anycast, diverse Internet transit egress, this model of Arista def
2. 2.▲
   by frnkblk 8y ago

   The Arista units are 7504N which are running 4.20 or later, and I believe they use the Arad or Petra chpiset.
3. 3.▲
   by frnkblk 8y ago

   To clarify, the Arista routers are the ISP's border routers. It was the residential/business customers' SOHO routers, of various makes and models, that were not decrementing the initial TCP SYN.