Re: bgp4-17 Cease subcode

[Russ White <[e-mail]>]

> 8.1 Exponential Back-off.
> 
>    If a BGP speaker detects an error, it shuts down the connection and
>    changes its state to Idle.  Getting out of the Idle state requires
>    generation of the Start event.  If such an event is generated
>    automatically, then persistent BGP errors may result in persistent
>    flapping of the speaker.  To avoid such a condition it is
>    recommended that Start events should not be generated immediately
>    for a peer that was previously transitioned to Idle due to an
>    error.  For a peer that was previously transitioned to Idle due to
>    an error, the time between consecutive generation of Start events,
>    if such events are generated automatically, shall exponentially

MAY rather than shall....

>    increase. The value of the initial timer shall be 60 seconds. The

....increase. If exponential backoff is used, ....

>    time shall be doubled for each consecutive retry.  Suggested value
>    for this timer is:
> 
>    2**(consecutive retry count)*60
> 
>    An implementation MAY impose a configurable upper bound on that
>    timer value. Once the upper bound is reached, the speaker shall
>    stop the timer then no longer automatically generate the Start
>    event for the peer.

:-)

Russ


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