Re: Frame Relay end to end PVC status in GNS3

From: Jared Scrivener <lists_at_jaredscrivener.com>
Date: Sat, 13 Feb 2010 23:37:37 +1000

Your understanding is correct, Ahmed, that it informs the other end router
even if you shut the interface down manually (due to missed keepalives) - I
just don't believe (I could be wrong and don't have the setup to test it)
that this changes the LMI to show "Inactive" in "sh frame-relay pvc".

My question to you, Ahmed, is what are you trying to achieve and then what's
your answer? The original poster was having a dynamips bug, my questions
were mainly to inspire thought - How would you use IP SLA to shut down one
of the interfaces based on E2E keepalives? I'm just interested in your idea
- I love how groupstudy is a place of free thought.

-- 
Cheers,
Jared Scrivener
CCSI #30878, CCIE3 #16983 (R&S, SP, Security)
www.MicronicsTraining.com
Sr. Technical Instructor
YES! We take Cisco Learning Credits!
Training And Remote Racks available
LinkedIn:www.linkedin.com/in/jaredscrivener
On Sat, Feb 13, 2010 at 11:25 PM, Ahmed Ejaz <aahmedejaz_at_gmail.com> wrote:
> Jared,
>
> I thought that after you enable end-to-end keepaplive on an interface it
> will keep track of the dlci status changes and will inform the other end if
> there is problem with the l2 link even if you shut down the interface
> manualy .. I am sure i tested this during one of the workbook labs on
> dynamips .. Maybe i am not getting the question properly at the first
> place... well thinking harder .. maybe an sla option can do the job ..
>
> Ahmed..
>
> On Sat, Feb 13, 2010 at 5:52 PM, Jared Scrivener <lists_at_jaredscrivener.com
> > wrote:
>
>> Ahmed, that should do the job. That'll drop the link at Layer 2 to the
>> FRSW and it should change that end of the PVC to Inactive. Of course, that's
>> what is apparently not working, so maybe it won't work after all.
>>
>> The original question states: Problem I am facing at the movement is when
>> I shut down a main interface of
>>
>> frame relay network of any of this router the PVC status of the other end
>> router does not go to inactive.
>>
>>  Sorry to seem like I'm dismissing each of your ideas: I'm not - they've
>> both involved good thinking, I just like to push you (and myself to think
>> harder). Given this is just a GNS3/Dynamips bug I figure we can probably
>> forget about it from a lab perspective.
>>
>> To keep the conversation rolling though: what other ways can we bring down
>> a frame-relay PVC to show Inactive? What about Deleted - how can we cause
>> that?
>>
>> --
>>
>> Cheers,
>>
>> Jared Scrivener
>> CCSI #30878, CCIE3 #16983 (R&S, SP, Security)
>> www.MicronicsTraining.com <http://www.micronicstraining.com/>
>> Sr. Technical Instructor
>>
>> YES! We take Cisco Learning Credits!
>> Training And Remote Racks available
>>
>> LinkedIn:www.linkedin.com/in/jaredscrivener
>>
>>
>> On Sat, Feb 13, 2010 at 10:29 PM, Ahmed Ejaz <aahmedejaz_at_gmail.com>wrote:
>>
>>> thanks Jared, well in that case i guess you could use track option to
>>> track a network or a particular path and attach it on the interface with the
>>> backup option to shut down an interface incase the network is down.
>>>
>>> Ahmed.
>>>
>>>   On Sat, Feb 13, 2010 at 4:56 PM, Jared Scrivener <
>>> lists_at_jaredscrivener.com> wrote:
>>>
>>>> End-to-end keepalives are used for the routers to tell each other if the
>>>> path PVC is up. They won't indicate problems with a particular end of the
>>>> network on the FRSW-Router connection like the LMI does.
>>>>
>>>> Innovative thinking nonetheless Ahmed.
>>>>
>>>> --
>>>>
>>>> Cheers,
>>>>
>>>> Jared Scrivener
>>>> CCSI #30878, CCIE3 #16983 (R&S, SP, Security)
>>>> www.MicronicsTraining.com <http://www.micronicstraining.com/>
>>>> Sr. Technical Instructor
>>>>
>>>> YES! We take Cisco Learning Credits!
>>>> Training And Remote Racks available
>>>>
>>>> LinkedIn:www.linkedin.com/in/jaredscrivener
>>>>
>>>> On Sat, Feb 13, 2010 at 5:35 PM, Ahmed Ejaz <aahmedejaz_at_gmail.com>wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> You should add the frame-relay end-to-end keepalive for pvc status on
>>>>> both
>>>>> routers:
>>>>>
>>>>> map-class frame-relay FREEK
>>>>> frame-relay end-to-end keepalive mode bidi
>>>>>
>>>>> int s0/0
>>>>> frame-relay class FREEK
>>>>>
>>>>> same for the subinterface
>>>>>
>>>>> int s0/0.1
>>>>> frame-relay interface-dlci 123
>>>>> class FREEK
>>>>>
>>>>> HTH,
>>>>>
>>>>> Ahmed.
>>>>>
>>>>> On Sat, Feb 13, 2010 at 12:30 PM, Muhammad Anser Khan
>>>>> <manserkhan_at_gmail.com>wrote:
>>>>>
>>>>> > Dear Sarad,
>>>>> >
>>>>> > Yes, It is a GNS FR Switch Issue. It is working fine If you configure
>>>>> > router as a FR switch.
>>>>> >
>>>>> > Regards,
>>>>> > Anser
>>>>> >
>>>>> > On Sat, Feb 13, 2010 at 9:21 AM, Sarad <tosara_at_gmail.com> wrote:
>>>>> > > Hi Expert,
>>>>> > >
>>>>> > > I am doing some IE expert practice labs there I want to configure
>>>>> two
>>>>> > > routers with two links ( one frame relay the other point to point
>>>>> serial)
>>>>> > > using static routes.
>>>>> > >
>>>>> > > In the frame relay interface one router is configured as a PTP
>>>>> spoke
>>>>> > router
>>>>> > > configuration of this router is as follows
>>>>> > >
>>>>> > > Rack1R4#sh run int s0/0.1
>>>>> > > Building configuration...
>>>>> > >
>>>>> > > Current configuration : 115 bytes
>>>>> > > !
>>>>> > > interface Serial0/0.1 point-to-point
>>>>> > >  ip address 155.1.0.4 255.255.255.0
>>>>> > >  frame-relay interface-dlci 405
>>>>> > > end
>>>>> > >
>>>>> > > Rack1R4#sh run int s0/0
>>>>> > > Building configuration...
>>>>> > >
>>>>> > > Current configuration : 139 bytes
>>>>> > > !
>>>>> > > interface Serial0/0
>>>>> > >  no ip address
>>>>> > >  encapsulation frame-relay
>>>>> > >  shutdown
>>>>> > >  clock rate 2000000
>>>>> > >  cdp enable
>>>>> > >  no frame-relay inverse-arp
>>>>> > > end
>>>>> > >
>>>>> > >
>>>>> > > the other router is configured as a hub & configuration of that is
>>>>> as
>>>>> > > follows
>>>>> > >
>>>>> > > Rack1R5#sh run int s0/0
>>>>> > > Building configuration...
>>>>> > >
>>>>> > > Current configuration : 286 bytes
>>>>> > > !
>>>>> > > interface Serial0/0
>>>>> > >  ip address 155.1.0.5 255.255.255.0
>>>>> > >  encapsulation frame-relay
>>>>> > >  clock rate 2000000
>>>>> > >  cdp enable
>>>>> > >  frame-relay map ip 155.1.0.1 501
>>>>> > >  frame-relay map ip 155.1.0.2 502
>>>>> > >  frame-relay map ip 155.1.0.3 503
>>>>> > >  frame-relay map ip 155.1.0.4 504
>>>>> > >  no frame-relay inverse-arp
>>>>> > > end
>>>>> > >
>>>>> > >
>>>>> > > Problem I am facing at the movement is when I shut down a main
>>>>> interface
>>>>> > of
>>>>> > > frame relay network of any of this router the PVC status of the
>>>>> other end
>>>>> > > router does not go to inactive.
>>>>> > >
>>>>> > > Wonder this is a issue with the GNS or I have missed anything in
>>>>> the
>>>>> > config.
>>>>> > >
>>>>> > > Thanks
>>>>> > >
>>>>> > > Sara
>>>>> > >
>>>>> > >
>>>>> > > Blogs and organic groups at http://www.ccie.net
>>>>> > >
>>>>> > >
>>>>> _______________________________________________________________________
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>>>>>
>>>>>
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>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Cheers,
>>>>
>>>> Jared Scrivener
>>>> CCSI #30878, CCIE3 #16983 (R&S, SP, Security)
>>>> www.MicronicsTraining.com <http://www.micronicstraining.com/>
>>>> Sr. Technical Instructor
>>>>
>>>> YES! We take Cisco Learning Credits!
>>>> Training And Remote Racks available
>>>>
>>>> LinkedIn:www.linkedin.com/in/jaredscrivener
Blogs and organic groups at http://www.ccie.net
Received on Sat Feb 13 2010 - 23:37:37 ART

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