Re: mpls pe-ce

Actually a majority of Carriers will support only BGP or statics. Just FYI.

-- 
Paul Negron
CCIE# 14856 CCSI# 22752
Senior Technical Instructor
www.micronicstraining.com
> From: Brian McGahan <bmcgahan_at_ine.com>
> Reply-To: Brian McGahan <bmcgahan_at_ine.com>
> Date: Wed, 9 Mar 2011 12:20:35 -0600
> To: "ccielab_at_groupstudy.com" <ccielab_at_groupstudy.com>
> Conversation: mpls pe-ce
> Subject: RE: mpls pe-ce
> 
> In the end it all depends on your service contract.  The SP technically can
> support all the IGPs on the PE-CE link, i.e. RIP, OSPF, EIGRP, and IS-IS, but
> they typically won't.  When you're shopping for the service, the SP will tell
> you "we'll support only RIP", or "we'll support only RIP or OSPF".  Just like
> in a BGP peering arrangement, the SP's are usually not very flexible in
> changing their policies to support a particular customer's requirements.  If
> the CE isn't already running the IGP that the SP wants to support, it's up to
> the CE to redistribute between the internal routing domain and routes coming
> from the MPLS L3 VPN.
> 
> 
> HTH,
> 
> Brian McGahan, CCIE #8593 (R&S/SP/Security)
> bmcgahan_at_INE.com
>  
> Internetwork Expert, Inc.
> http://www.INE.com
> 
> 
> 
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Jeferson Guardia
> Sent: Wednesday, March 09, 2011 10:57 AM
> To: aundra browning
> Cc: Aaron; <ccielab_at_groupstudy.com>
> Subject: Re: mpls pe-ce
> 
> Just from a point of view, if I was a Service Provider offering this service
> and if I knew my customer doesnt know well how to manage his network and if
> the design was really simple, yes, why not to go with RIPv2 ? At the end,
> yes, it pretty much depends on the design and you can go with anything, for
> really complex networks with potential growth in the future, OSPF scales
> well, so, many aspects we have to take in consideration before choosing what
> protocol to stick with, but as stated, they are all VRF aware and they all
> do the same job, but in a different way, with 3 single commands you can get
> RIPv2 running on the CE side and it is really simple for a customer with not
> much knowledge.
> 
> - JG
> CCIE #28157
> 
> 2011/3/9 aundra browning <browningaundra_at_gmail.com>
> 
>> I wouldn't agree that Cisco would recommend RIP as best practice for a
>> PE-CE routing protocol. Every IGP - RIP, OSPF, EIGRP and ISIS (12.0S is
>> limited) is VRF aware and is supported as a PE-CE routing protocol in IOS. I
>> don't know where the original quote was pulled from, but each IGP above can
>> be used. It's also the reason there are extensions made to BGP to carry the
>> attributes (via extended communities) from these IGP's across an MPLS cloud
>> (metrics, route-types, etc.) The decision on which IGP to use will always
>> vary according to design requirements - like anything else.....
>> 
>> - AB
>> CCIE #21901
>> 
>> 
>> 
>> On Wed, Mar 9, 2011 at 10:40 AM, Jeferson Guardia <jefersonf_at_gmail.com>wrote:
>> 
>>> Those are best practices, cisco thinks: the ce side is really simple and
>>> small, then RIP does the job, it is simple to setup and troubleshoot but at
>>> the end of the day any igp would accomplish it, is really up to you to
>>> decide.
>>> 
>>> Sent using my Iphone
>>> 
>>> Em 09/03/2011, C s 12:28, "Aaron" <aaron1_at_gvtc.com> escreveu:
>>> 
>>> 
>>>> " A service provider edge (PE) router can learn an IP prefix from a
>>> customer
>>>> edge (CE) router by static configuration, through a BGP session with the
>>> CE
>>>> router, or through the routing information protocol (RIP) exchange with
>>> the
>>>> CE router. "
>>>> 
>>>> 
>>>> 
>>>> Is it just me or have y'all also read statements like this before?  It
>>> seems
>>>> that I see RIP mentioned a lot when speaking of an IGP route prot that
>>> can
>>>> be used from CE to PE...does this mean I can't use eigrp, ospf ?
>>>> 
>>>> 
>>>> 
>>>> Aaron
>>>> 
>>>> 
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>>> 
>> 
> 
> 
> -- 
> Jeferson Guardia
> CCIE #28157
> 
> 
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