Re: [rrg] Summary of Tuneled Inter-domain Routing (TIDR)

[Tony Li <[e-mail]>]

Received and incorporated.

Tony


Juan Jose Adan wrote:
> Hi Lixia:
> 
> Here is the summary of Tunneled Inter-domain Routing (TIDR).
> 
> Merry Christmas.
> 
> Juanjo
> 
>  
> 
> PROPOSAL
> --------
> 
> Tunneled Inter-domain Routing (TIDR)
> 
> 
> KEY IDEA
> --------
> Provides a method for locator-identifier separation using tunnels 
> between routers
> of the edge of the Internet transit infrastructure. It enrichs BGP 
> protocol for
> distributing the identifier-to-locator mapping. Using new BGP atributes 
> "identifier
> prefixes" are assigned interdomain routing locators so that they will not be
> installed in the RIB and will be moved to a new table called Tunnel 
> Information Base
> (TIB). Afterwards, when routing a packet to the "identifier prefix", the 
> TIB will be
> searched first to perform tunnel imposition, and secondly the RIB for 
> actual routing.
> After the edge router performs tunnel imposition, all routers in the 
> middle will
> route this packet until the router being the tail-end of the tunnel.
> 
> GAINS
> -----
> - Smooth deployment
> - Size Reduction of the Global RIB Table
> - Deterministic Customer Traffic Engineering for Incoming Traffic
> - Numerous Forwarding Decisions for a Particular Address Prefix
> - TIDR Stops AS Number Space Depletion
> - Improved BGP Convergence
> - Protection of the Inter-domain Routing Infrastructure
> - Easy Separation of Control Traffic and Transit Traffic
> - Different Layer-2 Protocol-IDs for Transit and Non-Transit Traffic
> - Multihoming Resilience
> - New Address Families and Tunneling Techniques
> - TIDR for IPv4 or IPv6, and Migration to IPv6
> - Scalability, Stability and Reliability
> - Faster Inter-domain Routing
> 
> COSTS
> -----
> - Routers of the edge of the interdomain infrastructure will need to 
> be upgraded
> to hold the mapping database (i.e. the TIB)
> 
> - "Mapping updates" will need to be treated differently from usual BGP 
> "routing updates"
> 
> 
>  
> 
> DOCUMENTATION
> -------------
> The draft I submitted to the IETF is located on:
> http://tools.ietf.org/html/draft-adan-idr-tidr-01
>  
> Here there are some other links that add more information:
>  
> --> on scalability of the global BGP table and reducing BGP churn
> http://www.ietf.org/mail-archive/web/ram/current/msg01308.html
> [RAM] TIDR using the IDENTIFIERS attribute (19-April-2007)
> 
> --> on the different role of transit and non-transit ASes
> http://www.ops.ietf.org/lists/rrg/2007/msg00902.html
> [RRG] LISP etc architecture  (20-Sept-2007)
> 
> --> on AS-based routing with very fine granularity
> http://www.ops.ietf.org/lists/rrg/2008/msg00716.html
> [RRG] yetAnotherProposal: AS-number forwarding  (11-March-2008)
>  
> 
> 
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> 
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