nanog mailing list archives
Re: Overall Netflix bandwidth usage numbers on a network?
From: Martin Hepworth <maxsec () gmail com>
Date: Sat, 3 Dec 2011 08:36:11 +0000
Also checkout Adrian Cockcroft presentations on their architecture which describes how they use aws and CDns etc Martin On Saturday, 3 December 2011, Jonathan Towne <jtowne () slic com> wrote:
Wow.. not sure how I missed that option. Exactly why I posted before
dumping
a bunch of time into a bottomless bucket! Thanks.. :) -- Jonathan Towne On Sat, Dec 03, 2011 at 12:56:34AM +0000, Andrew Mulholland scribbled: # Surely this is what Netflow is for. # # # no need to re-invent the wheel. # # # Andrew # # # On Sat, Dec 3, 2011 at 12:47 AM, Jonathan Towne <jtowne () slic com> wrote: # # > Been lurking for a while and posed a question to a few folks without
much
# > response, figured someone here might've done something like this
already.
# > # > So, before I go about building wheels that already exist: # > # > I'm interested in doing a bit of a passive survey of bandwidth usage
on
# > my network (smallish isp, a few thousand DSL/FTTx customers) to
understand
# > the percentage of average/overall traffic generated by Netflix
streaming.
# > # > What I have available is a few gigabit transport switches providing
me with
# > mirror ports, a juniper MX series router running 10.4 code, plenty of
BSD
# > machines and libpcap-fu. # > # > What I'm looking for is either a timed-average or moments-glance
number
# > of the traffic. For instance, on an interface moving 150mbit/sec
total,
# > 50mbit/sec of it is attributed to Netflix right now. I'm pretty
handy with
# > RRDtool, so that isn't out of the question, either. # > # > I've really only spent dinnertime considering this, but have come up
with
# > two potential approaches so far, and haven't actively investigated
either
# > of them: # > # > * firewall terms and counters on the MX router + snmp # > * writing a quick libpcap application to filter and count in a
completely
# > out-of-band way on one of my monitoring hosts # > # > Some challenges I can see: # > # > * Nailing down the streaming source for Netflix, that is, IP ranges
etc.
# > * Making assumptions about CDN source IPs that could be used for
something
# > else, and further, should I care? # > # > Happy to hear thoughts about this, helpful or not! I know Netflix # > themselves # > have probably done plenty of studies like this, but pretty likely not # > limited # > to my customer base. Not aiming for anything creepy or crazy, just
some
# > vague understanding of what's going on, and the ability to do some
trending
# > for future planning. # > # > -- Jonathan Towne # > # >
-- -- Martin Hepworth Oxford, UK
Current thread:
- Overall Netflix bandwidth usage numbers on a network? Jonathan Towne (Dec 02)
- Re: Overall Netflix bandwidth usage numbers on a network? Andrew Mulholland (Dec 02)
- Re: Overall Netflix bandwidth usage numbers on a network? Jonathan Towne (Dec 02)
- Re: Overall Netflix bandwidth usage numbers on a network? Martin Hepworth (Dec 03)
- Re: Overall Netflix bandwidth usage numbers on a network? Blake Hudson (Dec 07)
- Re: Overall Netflix bandwidth usage numbers on a network? Dave Temkin (Dec 11)
- Re: Overall Netflix bandwidth usage numbers on a network? Faisal Imtiaz (Dec 11)
- Re: Overall Netflix bandwidth usage numbers on a network? Joel Jaeggli (Dec 11)
- Re: Overall Netflix bandwidth usage numbers on a network? Valdis . Kletnieks (Dec 11)
- Re: Overall Netflix bandwidth usage numbers on a network? Faisal Imtiaz (Dec 11)
- Re: Overall Netflix bandwidth usage numbers on a network? Christopher Morrow (Dec 11)
- Re: Overall Netflix bandwidth usage numbers on a network? Faisal Imtiaz (Dec 11)
- Re: Overall Netflix bandwidth usage numbers on a network? Joel jaeggli (Dec 11)
- Re: Overall Netflix bandwidth usage numbers on a network? Shaun Ewing (Dec 11)
- Re: Overall Netflix bandwidth usage numbers on a network? Jonathan Towne (Dec 02)
- Re: Overall Netflix bandwidth usage numbers on a network? Andrew Mulholland (Dec 02)