Re: FREEK end to end keep alive parameters

From: Pierre-Alex (paguanel@hotmail.com)
Date: Sat Jun 10 2006 - 03:22:56 ART


I took note.

Thanks!
  ----- Original Message -----
  From: Bajo
  To: Pierre-Alex
  Cc: ccielab@groupstudy.com
  Sent: Saturday, June 10, 2006 1:31 AM
  Subject: Re: FREEK end to end keep alive parameters

  That sounds correct.

  One more thing the configuration guide will tell you : "Encapsulation of
keepalive packets is proprietary; therefore, the feature is available only on
Cisco devices running a software release that supports the Frame Relay
End-to-End Keepalive feature. "

  On 6/9/06, Pierre-Alex <paguanel@hotmail.com> wrote:
    Is this correct? Is there something else to it?

    The command "frame-relay end-to-end keepalive event-window" set total
number
    of errors that can be recorded: the bin

    When a keepalive is missed the bin is incremented by one and then when
the
    event-window has accumlated to a certain value determined by the
"frame-relay
    end-to-end keepalive error-threshold:" the interface goes down.

    Lets suppose that the bin is set for 32 errors (the max for
event-window),
    and the interface goes down after 3 errors (the error-threshold) .

    If no keepalive is received, after 3 missed the interface goes down. Lets
say
    there are no keepalives for another 17 keepalive cycles, then thing start
    working again.

    The "frame-relay end-to-end keepalive success-events" will determine how
many
    successive keepalive to put the interface up.

    (As I understand it, the event-window would be reset to zero after that)

    To summurize:

    "frame-relay end-to-end keepalive success-events" the number of
consecutive
    success events required to change the keepalive state from down to up.

    "frame-relay end-to-end keepalive error-threshold: Number of errors in
the
    event window before keepalive status goes from up to down."

    "frame-relay keepalive event-window" : the bin recording the errors -
There
    are no bin recording consecutive successes !

    http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hwa
n_r/
    wan_f1h.htm#wp1072084

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  --
  Kind Regards,

  Bajo



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