Re: EEK down, protocol UP?

From: Huan Pham (pnhuan@yahoo.com)
Date: Tue Oct 21 2008 - 11:51:11 ARST

Hi Shiran,
 
Frame-Relay E2E keepalive is a Cisco proprietary feature; therefore accoring
to the link you provided "the feature is available only on Cisco devices
running a software release that supports the Frame Relay End-to-End Keepalive
feature". However, my understanding is that, only the two ends of PVC need to
be Cisco. We do not need to have Cisco all the way through. This should almost
never be the case anyway in practice, and hence Cisco introduced the feature
to get arround the problem of loosing PVC status signaling due to "PVC
handover" between FR providers.
 
So, I still havenot thoght of a case where this should not work in real-life
due to the frame-relay provider "incompatiblity". Could you pls elaborate?
 
Cciestudy,
 
- Have you confirmed that the IOS version that your routers running on support
this feature? I think this feature has been arround for awhile, but you can
verify it using cisco.com/go/fn.
 
- Did you use frame-relay point-to-point sub-interface? If you use physical ,
or point-to-multipoint interface, you can end up in a situation where the PVC
is down, but your line protocol is up. This is just a normal frame-relay
behavior, not particularly related to E2E keepalive.
 
 
 

 

--- On Tue, 10/21/08, shiran guez <shiranp3@gmail.com> wrote:

From: shiran guez <shiranp3@gmail.com>
Subject: Re: EEK down, protocol UP?
To: "cciestudy" <cciestudy@mid-world.net>
Cc: "Cisco certification" <ccielab@groupstudy.com>
Date: Tuesday, October 21, 2008, 7:38 PM

You should read this
http://www.cisco.com/en/US/docs/ios/12_0t/12_0t5/feature/guide/FRKeep.html

basically the EEK is nice for the lab or for pure cisco env but in real life
you cant know for sure that the provider will use pure Cisco all the way.

I would use the sla and track features for real life.

On Tue, Oct 21, 2008 at 2:50 AM, cciestudy <cciestudy@mid-world.net>
wrote:

> In regards to Frame Relay EEK, are there any situations where EEK shows
> down, but the line protocol stays up? Even after the EEK timers and
counts
> have expired?
>
> I was able to get EEK to work properly in a lab environment, but when
> applied to a "real" provider network it ended up in this
situation? The
> provider network is L2 carried over MPLS. The configs involved were
> nothing
> more then a frame-map with bi-directional EEK with the defaults. Pretty
> straightforward config?
>
> Any ideas?
>
>
>
> Thanks.
>
>
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--
Shiran Guez
MCSE CCNP NCE1 CCIE #20572
http://cciep3.blogspot.com
http://www.linkedin.com/in/cciep3

Blogs and organic groups at http://www.ccie.net

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