From: Edison Ortiz (edisonmortiz@gmail.com)
Date: Mon Jul 30 2007 - 17:08:00 ART
The subinterface was able to come up after a failure because the main
interface never went down and it was receiving LMIs from the frame-relay
switch.
If the main interface goes down due to EEK, how does it know when to come up
after a failure ?
Edison Ortiz
Routing and Switching, CCIE # 17943
-----Original Message-----
From: Bit Gossip [mailto:bit.gossip@chello.nl]
Sent: Monday, July 30, 2007 2:53 PM
To: Edison Ortiz
Cc: 'Greg Wendel'; ccielab@groupstudy.com
Subject: RE: FR-EEK on interface and subinterface
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:
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> >>
> >
> >
> >
> > --
> > Gregory Wendel
> > Springfield VA, 22153
> >
> > ____________________________________________________________________
> > ___ Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
> ______________________________________________________________________
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