From: Bit Gossip (bit.gossip@chello.nl)
Date: Mon Jul 30 2007 - 15:52:42 ART
Hi Edison,
during my testing I have noticed that a subinterface, multi or
point2point, doesn't go down by itself if something is broken in the FR
cloud but the frame-relay pvc remains active.
I have simulated this situation on the FR switch by removing the route
statements on the interfaces and replacing them with local dlci. This
way the pvc remains active on the DTE device but of course communication
is broken between the 2 DTEs. In this case the subinterface goes down
when FREEK detects the failure; but only if FREEK is configured.
I also noticed that as soon as I restore the config on the FR switch,
first FREEK comes up and immediately after also the subinterface.
Thanks,
Bit
On Sun, 2007-07-29 at 17:57 -0400, Edison Ortiz wrote:
> Did you try your testing without EEK ?
> Does the interface (multi-point) go down as well ?
>
> The problem with EEK bringing down a main serial interface is, it doesn't
> know
> when to bring the interface back up - after it's down.
>
>
> Edison Ortiz
> Routing and Switching, CCIE # 17943
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Bit
> Gossip
> Sent: Sunday, July 29, 2007 3:15 PM
> To: Greg Wendel
> Cc: ccielab@groupstudy.com
> Subject: Re: FR-EEK on interface and subinterface
>
> Group,
> I have tested now EEK on multipoint subinterface:
> - if the subinterface has only ONE dlci, FREEK brings down the subinterface
> as soon as it fails
> - if the subinterface has more dlci and one fails, FREEK doesn't bring down
> the subinterface
> - if the subinterface has more dlci and all of them fail, FREEK does bring
> down the subinterface
>
> My questions:
> - is it possible to configure freek so that it brings down a multipoint
> subinterface when it fails on only one dlci?
> - is it possible to use SLA to bring down an interface when it fails?
> If possible, how is the config?
>
> Thanks,
> bit.
>
> interface Serial0/0
> no ip address
> encapsulation frame-relay
> no fair-queue
> clock rate 128000
> no frame-relay inverse-arp
> !
> interface Serial0/0.105 multipoint
> ip address 1.1.1.1 255.255.255.0
> frame-relay class FREEK
> frame-relay map ip 1.1.1.2 102 broadcast frame-relay map ip 1.1.1.5 105
> broadcast !
> map-class frame-relay FREEK
> frame-relay end-to-end keepalive mode bidirectional
>
>
> ----- Original Message -----
> From: "Greg Wendel" <gwendel@gmail.com>
> To: "Bit Gossip" <bit.gossip@chello.nl>
> Cc: <ccielab@groupstudy.com>
> Sent: Sunday, July 29, 2007 9:13 AM
> Subject: Re: FR-EEK on interface and subinterface
>
>
> > Hello,
> > EEK can only be used to bring down the sub interfaces. The physical
> > interfaces will remain up as long as they are receiving lmi's from their
> > local (CO) frame switch.
> >
> > Let me know if you need any more information,
> >
> > Greg
> >
> > On 7/29/07, Bit Gossip <bit.gossip@chello.nl> wrote:
> >>
> >> Experts,
> >> in my lab I eperience the following behavior, can you confirm that it is
> >> as it
> >> should be.....
> >>
> >> - if I apply EEK on a FR physical interface, when EEK goes down the
> >> interface
> >> stays up
> >> - if I apply EEK on a p2p FR subinterface, when EEK goes down the
> >> sub-interface goes down as well whether the EEK class is applied to the
> >> sub-interface or inside the 'frame-relay interface-dlci'
> >>
> >> ~ I suspect, but haven't tried yet, that a multipoint subinterface has
> >> same
> >> behavior as the physical interface, is it true?
> >> ~ How can I have EEK bring down the physical interface then?
> >>
> >> Thanks,
> >> bit.
> >>
> >> _______________________________________________________________________
> >> Subscription information may be found at:
> >> http://www.groupstudy.com/list/CCIELab.html
> >>
> >
> >
> >
> > --
> > Gregory Wendel
> > Springfield VA, 22153
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
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