Re: mpls pe-ce

Agreed.

It was never an issue of possibility as much as it was scalability. Back
door links put an end to the discussion for SP's. It just was not a scalable
solution to run IGP's to the edge. Although I believe you will see it more
within large enterprises like Bank of America and Wells Fargo. Back door
links are usually not a part of the equation there.

Paul

-- 
Paul Negron
CCIE# 14856 CCSI# 22752
Senior Technical Instructor
www.micronicstraining.com
> From: Carlos G Mendioroz <tron_at_huapi.ba.ar>
> Date: Thu, 10 Mar 2011 10:15:53 -0300
> To: Daniel Dib <daniel.dib_at_reaper.nu>
> Cc: 'Shaughn Smith' <maniac.smg_at_gmail.com>, 'Paul Negron'
> <negron.paul_at_gmail.com>, 'Brian McGahan' <bmcgahan_at_ine.com>,
> <ccielab_at_groupstudy.com>
> Subject: Re: mpls pe-ce
> 
> Ah, ummm
> The SP IGP should never mix with customer's IGPs. Granted.
> But VRFs should be able to fence them, and you should have no problem
> running any IGP on the VRF. Any problems there are the SP responsibility.
> 
> In MPLS vpn world, having any IGP extended to the PE vrf does not
> make it an imperfect world.
> 
> -Carlos
> 
> 
> Daniel Dib @ 10/03/2011 10:06 -0300 dixit:
>> On to, mar 10, 2011 at 13:59:23, Carlos G Mendioroz wrote:
>>> ccielab_at_groupstudy.com
>>> Subject: Re: mpls pe-ce
>>> 
>>> Your own network ? I thought the idea of VPN was to extend the
>>> customer's network, and that SP meant SERVICE provider... LOL.
>>> 
>>> But in the end, it's about contracts, agreed.
>>> Two parties agreeing to something, if it were a perfect world.
>>> LOL again.
>>> 
>>> -Carlos
>> 
>> Yes, it is the service providers job to extend the VPN but if you cannot
>> assure that your own IGP is stable then you risk messing up all of your
>> customers networks since you carry the next-hops in IGP. In a perfect world
>> customer prefixes shall only be carried in BGP and next-hops/loopbacks in
>> IGP. Sometimes we need to make exceptions but you should be aware of the
>> risk you are taking by doing so.
>> 
>> /Daniel
>> 
> 
> -- 
> Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net