Re: MPLS L3 VPN query

From: GAURAV MADAN <gauravmadan1177_at_gmail.com>
Date: Thu, 19 Jan 2012 22:54:52 +0530

AS command under address family is to do with AS runnign betwen as PE and a
CE

Example

CE is EIGRP AS 100

PE can say

router eigrp 65535
address-family ipv4 vrf TEST
autonomous-system 100
 .........
.........

HTH
Gaurav Madan

On Thu, Jan 19, 2012 at 10:48 PM, Aaron <aaron1_at_gvtc.com> wrote:

> I also recall something about the autonomous-system command under the eigrp
> process under the vrf specific af having some significance too with vrf
> eigrp via mpls core
>
> Aaron
>
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Paul
> Negron
> Sent: Thursday, January 19, 2012 10:55 AM
> To: Routing Freak; Cisco certification
> Subject: Re: MPLS L3 VPN query
>
> BGP also uses a similar method of keeping track of the OSPF info
> (Domain-ID,
> Cost using the MED attribute, type of route). Look at the extended
> information for OSPF like you did EIGRP.
>
> ISIS should not be used to the edge and I know it used to leak routes in an
> efficient way in the VPN in times past. Very inconsistent and sloppy. I
> know
> they have cleaned some things up in code but I have not implemented ISIS to
> the edge in any real scenario to verify.
>
> Paul
> --
> Paul Negron
> CCIE# 14856 CCSI# 22752
> Senior Technical Instructor
>
>
>
> > From: Routing Freak <routingfreak_at_gmail.com>
> > Reply-To: Routing Freak <routingfreak_at_gmail.com>
> > Date: Thu, 19 Jan 2012 21:22:42 +0530
> > To: Cisco certification <ccielab_at_groupstudy.com>
> > Subject: MPLS L3 VPN query
> >
> > Hi all,
> >
> > I have a weird doubt when redistributing EIGRP or OSPF or ISIS into MPBGP
> > update to another PE and again MPBGP is redistributed into EIGRP or OSPF
> or
> > ISIS.
> > How does BGP carry EIGRP info or OSPF info or ISIS info such as ( Area
> for
> > OSPF, internal route or external route what is the area type or lsa type)
> > or for EIGRP ( AS number , Delay, BW). I know for EIGRP , there is
> extended
> > bgp communites attributes to carry for EIGRP .. ( which is
> > 8801,8802,8803,8804,8805)
> >
> > But wat about OSPF or ISIS into BGP ( how does BGP carry OSPF or ISIS
> > routes) ? Is there any extended community attributes for this?
> >
> > And also how does OSPF or ISIS carry BGP updates from one end to another
> > end ? Is there any extended TLVS for it or else is there any other
> > extended headers for OSPF or ISIS to carry BGP information.
> >
> >
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Received on Thu Jan 19 2012 - 22:54:52 ART

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