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MirrorManager automatic local mirror selection

Oct 01, 2009, 04:32 (0 Talkback[s])
(Other stories by Matt Domsch)

"As you know, Internet routing uses BGP (Border Gateway Protocol), and Autonomous System Numbers (ASNs) to exchange IP prefixes (aa.bb.cc.dd/nn) and routing tables. By grabbing a copy of the global BGP table a few times a day, MM can know the ASN of an incoming client request, and Hosts in the MM database have grown two new fields: ASN and "ASN Clients?". MM then looks to see if there is a mirror with the same ASN as each client, and offers it up earlier in the list."

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