Re: [gaia] draft-irtf-gaia-alternative-network-deployments. Nicolas review, question #4: Routing protocols

["Jose Saldana" <[e-mail]>]

Hi, 

> -----Mensaje original-----
> De: gaia [mailto:[e-mail]] En nombre de Mitar
> Enviado el: miércoles, 13 de abril de 2016 11:43
> Para: Jose Saldana <[e-mail]>
> CC: gaia <[e-mail]>; Nicolás Echániz <[e-mail]>
> Asunto: Re: [gaia] draft-irtf-gaia-alternative-network-deployments. Nicolas review,
> question #4: Routing protocols
> 
> Hi!
> 
> I think the routing section in general needs some improvements.
> 
> - so OLSR is not used as it is, it is used as special implementation with ETX and
> many other small hacks/improvements, as developed by http://olsr.org/
> - now is in development and use already OLSR2
> - Babel is missing
> - Batman by itself is not used as much (I might not even mention it anymore), but
> Batman-advanced (L2 protocol) is used, probably the main feature it supports is
> roaming inside a mesh network
> - BMX might started as fork of Batman and name comes from there, but I think
> these days nobody sees it anymore like that, so calling it Batman-experimental I
> think is misdirecting at this time
> 
> So, the list of protocols to have, I would suggest:
> 
> OLSR, OLSR2, Babel, B.A.T.M.A.N. Advanced, Bmx6.

What about this new version? Thanks!

7.1.2.2.  Mesh routing protocols

   A large number of Alternative Networks use the Optimized Link State
   Routing Protocol (OLSR) as defined in [RFC3626].  The pro-active link
   state routing protocol is a good match with Alternative Networks
   because it has good performance in mesh networks where nodes have
   multiple interfaces.  Special features and improvements (not included
   in [RFC3626] are being added to OLSR [olsr.org], and a new version of
   the protocol (OLSR2) is being developed.

   Babel [RFC6126] is a loop-avoiding distance-vector routing protocol
   that is robust and efficient both in wired and wireless mesh
   networks.  It limits the frequency and duration of routing loops and
   black-holes during reconvergence.

   The Better Approach To Mobile Adhoc Networking (BATMAN) [Abolhasan]
   protocol was developed by members of the Freifunk community.  The
   protocol handles all routing at layer 2, creating one bridged
   network.  BATMAN-Advanced, which supports roaming inside a mesh
   network is nowadays more popular.

   Parallel to BGP, some networks also run the BMX6 protocol
   [Neumann_a], which started as a fork of BATMAN.  It is based on IPv6
   and tries to exploit the social structure of Alternative Networks.

   In [Neumann_b] a study of three proactive mesh routing protocols used
   in wireless community networks (BMX6, OLSR, and Babel) is presented,
   in terms of scalability, performance, and stability.

Best regards,

Jose 

> 
> Also, not sure if people here are familiar, but this event is very interesting, where
> many community networks come together and compare various routing protocols
> and their configurations in a real common
> testbed:
> 
> http://battlemesh.org/
> 
> If people are interested in this stuff, you should come this year. It will be in Porto,
> Portugal.
> 
> 
> Mitar
> 
> On Tue, Apr 12, 2016 at 6:55 AM, Jose Saldana <[e-mail]> wrote:
> > Hi, Nicolás,
> >
> >>
> >> # Section 7.1.2.2
> >> When refering to bmx6, the wording: " this is an advanced version of
> >> the
> > BATMAN
> >> protocol" is confusing as the other popular BATMAN derivative is
> >> called
> > batman-
> >> advanced.
> >>
> >> Maybe this section could have more extensive information as it
> >> actually
> > represents
> >> the core of much development in the Community Network movement.
> >
> > This would be the new version of this section:
> > Please feel free to suggest your improvements to the text.
> >
> > 7.1.2.  Routing protocols
> >
> >    As stated in previous sections, Alternative Networks are composed of
> >    possibly different layer 2 devices, resulting in a mesh of nodes.
> >    Connection between different nodes is not guaranteed and the link
> >    stability can vary strongly over time.  To tackle this, some
> >    Alternative Networks use mesh network routing protocols while other
> >    networks use more traditional routing protocols.  Some networks
> >    operate multiple routing protocols in parallel.  For example, they
> >    may use a mesh protocol inside different islands and rely on
> >    traditional routing protocols to connect these islands.
> >
> > 7.1.2.1.  Traditional routing protocols
> >
> >    The Border Gateway Protocol (BGP), as defined by [RFC4271] is used by
> >    a number of Community Networks, because of its well-studied behavior
> >    and scalability.
> >
> >    For similar reasons, smaller networks opt to run the Open Shortest
> >    Path First (OSPF) protocol, as defined by [RFC2328].
> >
> > 7.1.2.2.  Mesh routing protocols
> >
> >    A large number of Alternative Networks use the Optimized Link State
> >    Routing Protocol (OLSR) as defined in [RFC3626].  The pro-active link
> >    state routing protocol is a good match with Alternative Networks
> >    because it has good performance in mesh networks where nodes have
> >    multiple interfaces.
> >
> >    The Better Approach To Mobile Adhoc Networking (BATMAN) [Abolhasan]
> >    protocol was developed by members of the Freifunk community.  The
> >    protocol handles all routing at layer 2, creating one bridged
> >    network.
> >
> >    Parallel to BGP, some networks also run the BatMan-eXperimental
> >    (BMX6) protocol [Neumann_a].  This is an evolved version of the
> >    BATMAN protocol which is based on IPv6 and tries to exploit the
> >    social structure of Alternative Networks.  In [Neumann_b] a study of
> >    three proactive mesh routing protocols is presented, in terms of
> >    scalability, performance, and stability.
> >
> >
> > Thanks,
> >
> > Jose
> >
> > _______________________________________________
> > gaia mailing list
> > [e-mail]
> > https://www.irtf.org/mailman/listinfo/gaia
> 
> 
> 
> --
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> 
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