Re: mpls pe-ce

100%

All the ISP's I have worked/contracted for only allow BGP and statics

CCIE # 23962 (SP)

Sent from my iPhone 4

On 09 Mar 2011, at 8:35 PM, Paul Negron <negron.paul_at_gmail.com> wrote:

> 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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Received on Thu Mar 10 2011 - 10:45:19 ART