Re: stub area in a vrf

Acee Lindem <acee@REDBACK.COM> Thu, 29 July 2004 14:06 UTC

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Date: Thu, 29 Jul 2004 10:05:55 -0400
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From: Acee Lindem <acee@REDBACK.COM>
Subject: Re: stub area in a vrf
To: OSPF@PEACH.EASE.LSOFT.COM
Precedence: list

RE: stub area in a vrfI agree. However, I'd say that even if the PE router is not connected to 
multiple areas it should behave as if it one and originate the default. It can use 
the OSPF route type in advertised with the BGP extended community to determine
which routes to advertise into the stub area. 

  ----- Original Message ----- 
  From: Robert Pineau 
  To: OSPF@PEACH.EASE.LSOFT.COM 
  Sent: Thursday, July 29, 2004 9:35 AM
  Subject: Re: stub area in a vrf

  Hi John, Mani, 

  What if the VRF was an ABR, and simply supplied a default route to the CE in the stub? 

  I think this should work and allow the PE-CE link be part of a stub area. 

  Thanks, 
  Rob. 

  -----Original Message----- 
  From: Mani Devarajan [mailto:mani_devarajan@NET.COM] 
  Sent: Wednesday, July 28, 2004 8:56 PM 
  To: OSPF@PEACH.EASE.LSOFT.COM 
  Subject: Re: stub area in a vrf 

  Hi Jonh, 
   I tried to do similar kind of testing, that is configuring PE-CE link as  stub. But as PE will be ASBR, we cannot configure  it in a stub.

  rfc 2328: Section 3.6 
   AS boundary routers cannot be placed internal to stub  areas. 

  Thanks, 
  Mani 

  Acee Lindem wrote: 

  >Hi John, 
  > 
  >Note that this draft (draft-ietf-l3vpn-ospf-2547-01.txt) is a product 
  >of the L3VPN WG and not the OSPF WG. Perhaps Eric or Padma could 
  >respond.  Although I know how I would handle it I don't think the stub 
  >area case is covered in the draft. 
  > 
  >Thanks, 
  >Acee 
  > 
  > 
  >----- Original Message ----- 
  >From: "John Pecola" <john_pecola@YAHOO.COM> 
  >To: <OSPF@PEACH.EASE.LSOFT.COM> 
  >Sent: Wednesday, July 28, 2004 7:52 PM 
  >Subject: stub area in a vrf 
  > 
  > 
  > 
  > 
  >>Hi, 
  >> 
  >>With the 2547 VPNs, a CE router may receive type 3 
  >>LSAs from a PE for redistributed routes. Assuming that 
  >>2547 BGP routes are redistributd into ospf on the PE 
  >>in the vrf (ASBR), can there be a scenario where it is desired to 
  >>configure the PE-CE link as part of a stub area? Should it be even 
  >>allowed? 
  >> 
  >>Thanks 
  >>John 
  >> 
  >> 
  >> 
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stub area in a vrf John Pecola
Re: stub area in a vrf Acee Lindem
Re: stub area in a vrf Mani Devarajan
Re: stub area in a vrf Robert Pineau
Re: stub area in a vrf Acee Lindem
Re: stub area in a vrf Mani Devarajan
Re: stub area in a vrf John Pecola