Hi, John,

On Wed, Nov 4, 2015 at 2:43 PM, John G. Scudder <[email protected]> wrote:

> On Oct 15, 2015, at 1:03 AM, Spencer Dawkins <
> [email protected]> wrote:
> > I found myself wondering when you can start route mirroring,
>
> I think the answer is "pretty much any time" following the Initiation and
> Peer Up. It's true this isn't written down anywhere. I propose adding this
> to the end of S 4.7:
>
>    A Route Mirroring message may be sent any time it would be legal to
>    send a Route Monitoring message.


That's helpful. Thanks!


> > and whether
> > there was any guidance about what to do when a BGP speaker runs out of
> > buffers so that route mirroring is no longer complete.
>
> Yes, there is. You send one of these:
>
>    o  Type = 1: Information.  A two-byte code that provides information
>       about the mirrored message or message stream.  Defined codes are:
> ...
>       *  Code = 1: Messages Lost.  One or more messages may have been
>          lost.  This could occur, for example, if an implementation runs
>          out of available buffer space to queue mirroring messages.


Got it. I'm sorry for not being clearer. I meant "what to do AFTER a BGP
speakers runs out of buffers so that route mirroring is no longer
complete". So, Code = 1: Messages Lost.

Do you wait before trying to resynchronize, for instance? Or is retrying
immediately OK? Stuff like that.

Spencer
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