[tor-bugs] #3847 [Tor Relay]: Provide ability to round robin outgoing exit connections on multiple interfaces (was: Provide ability to round robin outgoing connections on multiple interfaces)

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#3847: Provide ability to round robin outgoing exit connections on multiple
interfaces
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 Reporter:  mikeperry    |          Owner:                    
     Type:  enhancement  |         Status:  new               
 Priority:  normal       |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Relay    |        Version:                    
 Keywords:               |         Parent:                    
   Points:               |   Actualpoints:                    
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Description changed by mikeperry:

Old description:

> Multithreading support may improve our ability to support high-throughput
> multicore tor nodes, but it is not the whole story. To avoid TCP source
> port exhaustion on high capacity relays, we will need the ability to
> support multiple interfaces for outgoing exit connections.
>
> To minimize stupid website breakage, we probably want to keep every
> connection from the same circuit on the same interface, but round robin
> circuits across different outgoing interfaces.

New description:

 Multithreading support may improve our ability to support high-throughput
 multicore tor nodes, but it is not the whole story. To avoid TCP source
 port exhaustion on high capacity exit relays, we will need the ability to
 support multiple interfaces for outgoing exit connections.

 To minimize stupid website breakage, we probably want to keep every
 connection from the same circuit on the same interface, but round robin
 circuits across different outgoing interfaces.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/3847#comment:1>
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