Re: Software Defined Networks

SDN is definitely an overloaded and confusing term that is used inconsistently. Here are a few attempts to explain: - “The Road to SDN: An Intellectual History of Programmable Networks” (ACM Queue, December 2013) https://queue.acm.org/detail.cfm?id=2560327

Re: Barefoot "Tofino": 6.4 Tbps whitebox switch silicon?

> I do think p4 is very interesting, but is it really much different from > openflow? Which...umm ... Did not succeed in the market. P4 is quite different from OpenFlow. The various generations of the OpenFlow specification assume a fixed-format packet header with an ever increasing number of

Re: tracking TCP session hop by hop

https://paris-traceroute.net/ > On Nov 28, 2017, at 3:48 PM, Yifeng Zhou wrote: > > Hi Experts, > > Is there any way that we can track TCP session hop by hop? > > Say we have 10 ECMP between A and Z point, what's the easiest way to track > specific session is us

Re: Calculator written in route-map

Job, Fun! More generally, BGP has the same computing power as a Turing Machine: Marco Chiesa, Luca Cittadini, Guiseppe Di Battista, Laurent Vanbever, and Stefano Vissicchio Using routers to build logic circuits: How powerful is BGP? (ICNP'13) http://vanbever.eu/pdfs/vanbever_turing_icnp_2

Re: real-world data about fragmentation

This isn't a direct answer to the question, but I find this paper pretty useful (even though it is dated now): Beyond Folklore: Observations on Fragmented Traffic by Colleen Shannon, David Moore, and k claffy IEEE/ACM Transactions on Networking, December 2002 http://www.caida.org/publicat

Re: Do Not Complicate Routing Security with Voodoo Economics

>> to me honest, what set me off was >> >>http://transition.fcc.gov/pshs/advisory/csric3/wg-descriptions_v1 >> >> describing, among others, a routing working group of an fcc >> "communications security, reliability and interoperability council" >> >> i.e. these folk plan to write policy and

Re: Do Not Complicate Routing Security with Voodoo Economics

Neil, The group is being assembled right now, so we don't have a list as of yet. -- Jen Sent from my iPhone On Sep 4, 2011, at 11:32 AM, "Neil J. McRae" wrote: > Jen, > What operators are involved? And who represents them specifically? > > Neil. > > On 04

Re: Do Not Complicate Routing Security with Voodoo Economics

Randy, Yes, as the brief write-up says, the group will make "recommendations regarding the adoption" (e.g., suggesting effective strategies for incremental deployment) of "procedures and protocols based on existing work" (e.g., RPKI, BGP-SEC, etc.). In any case, if our current wording is uncle

Re: Do Not Complicate Routing Security with Voodoo Economics

are very interested in having people who can offer their expertise, feedback, and advice throughout the process... -- Jen > > On 4 Sep 2011, at 16:45, "Jennifer Rexford" wrote: > >> Neil, >> >> The group is being assembled right now, so we don't hav

Re: Do Not Complicate Routing Security with Voodoo Economics

> > One could argue that rejecting routes which you previously had no way to > know you should reject will inherently alter the routing system and that this > is probably a good thing. Good point. Also, "tie breaking" in favor of signed-and-verified routes over not-signed-and-verified routes d

Re: Router and interface naming convention survey

has a name suggestive of a different location (e.g., because a network administrator did not update the DNS entries for the interface names). See Ming Zhang, Yaoping Ruan, Vivek Pai, and Jennifer Rexford, "How DNS misnaming distorts Internet topology mapping," Proc. USENIX Annual Tech

Re: rpki vs. secure dns?

>> the worry in the ripe region and elsewhere is what i call the 'virginia >> court attack', also called the 'dutch court attack'. some rights holder >> claims their movie is being hosted in your datacenter and they get the >> RIR to jerk the attestation to your ownership of the prefix or your RO

Re: Software Defined Networking

For a short survey and history, see also "The road to SDN: An intellectual history of programmable networks" http://queue.acm.org/detail.cfm?id=2560327 Also, the lectures and interviews from Nick Feamster's coursera course are available on YouTube: https://m.youtube.com/user/nfeamster?noapp=1 -