January 2012 - NANOG - lists.nanog.org

BFD over every 802.1ax member port?
by Fred David 27 Jan '12

27 Jan '12

Hi, I want to track individual member links inside a .1ax trunk (LAG) using BFD since the best timer that we can get with efm-oam is around 100ms as opposed to BFD which can get as low as 10ms (on most platforms). Its while "googling" on this that i came across work being done in IETF that describes exactly this - draft-mmm-bfd-on-lags-02 [BFD]. Wanted to ask folks if there are any implementations of this draft or if there are vendors that are already doing something similar to what is described in this draft? We dont want to use LACP as thats a slow protocol and it takes an order of seconds to detect a failed link before its removed from use. We are also not keen on using .1ag and .3ah and would want to rely on BFD to detect the failed link for us. Freddy "Dave" [BFD] "Bidirectional Forwarding Detection (BFD) on Link Aggregation Group (LAG) Interfaces" http://tools.ietf.org/id/draft-mmm-bfd-on-lags-02.txt

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RE: LX sfp minimum range
by George Bonser 27 Jan '12

27 Jan '12

Yes, you are correct, I had them backwards in my head when I typed that. On Behalf Of Pierre-Yves Maunier Sent: Thursday, January 26, 2012 2:27 PM To: George Bonser Subject: Re: LX sfp minimum range It's the contrary. SX only works on multimode fibre, not on singlemode. LX can work on both.

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AT&T and IPv6 Launch
by Jared Mauch 27 Jan '12

27 Jan '12

Is there someone who can talk about how to get IPv6 on AT&T residential:? Thanks, - Jared -- snip -- ISPs participating in World IPv6 Launch will enable IPv6 for enough users so that at least 1% of their wireline residential subscribers who visit participating websites will do so using IPv6 by 6 June 2012. These ISPs have committed that IPv6 will be available automatically as the normal course of business for a significant portion of their subscribers. Committed ISPs are: • AT&T -- snip --

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Akamai/Integra issue?
by Thomas Magill 26 Jan '12

26 Jan '12

This morning we began having issues at one of our sites. Eventually the systems teams tracked it down to some Akamai hosted content. I did some debugs and found that traffic transiting Integra is getting back RST packets for anything at *.akamaiedge.net. I rerouted the known bad hosts through our backup provider and that resolved the issue, but more keep popping up due to DNS changes. Has anyone else had any issues with akamaiedge.net today? If an Akamai operator is on please email me offline. Thomas Magill Sr. Network Engineer Office: (858) 909-3777 Cell: (858) 869-9685 mailto:tmagill@providecommerce.com provide-commerce 4840 Eastgate Mall San Diego, CA 92121 ProFlowers<http://www.proflowers.com/> | redENVELOPE<http://www.redenvelope.com/> | Cherry Moon Farms<http://www.cherrymoonfarms.com/> | Shari's Berries<http://www.berries.com/>

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Who is IANA, these days?
by Jay Ashworth 26 Jan '12

26 Jan '12

Specifically, who manages the TCP and UDP port number registries? Cheers, -- jra -- Jay R. Ashworth Baylink jra(a)baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274

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Re: LX sfp minimum range
by Pierre-Yves Maunier 26 Jan '12

26 Jan '12

2012/1/26 Pierre-Yves Maunier <pierre-yves(a)maunier.fr> > > > 2012/1/26 Holmes,David A <dholmes(a)mwdh2o.com> > > I have found that -5dB or -10dB attenuators must be used on the send or >> receive strands between Cisco LX connected switches at relatively short >> distances of < 1 km over standard singlemode fiber. >> >> Other Vendors' SFPs rated up to 25 km do not need attenuators at >> distances <1 km. >> > > Cisco standard LX TX between -3dBm and -9dBm > RX sensitivity is from -9dBm to -19dBm > Oups typo, RX from -3 dBm to -19 dBm -- Pierre-Yves Maunier

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mysql.org down?
by Ingo Flaschberger 26 Jan '12

26 Jan '12

Hi, from my location / austria, mysql.org seems to be down: traceroute to 213.136.52.82 (213.136.52.82), 30 hops max, 40 byte packets 7 at-vie-xion-pe01-vl-2061.upc.at (84.116.229.21) 39.009 ms 38.957 ms 39.001 ms 8 at-vie01a-rd1-vl-2050.aorta.net (84.116.228.193) 36.824 ms 35.930 ms 61.089 ms 9 nl-ams05a-rd2-xe-0-1-0.aorta.net (213.46.160.145) 38.910 ms nl-ams05a-rd2-xe-0-0-2.aorta.net (84.116.130.73) 36.573 ms nl-ams05a-rd2-xe-0-1-0.aorta.net (213.46.160.145) 38.631 ms 10 84.116.134.145 (84.116.134.145) 36.539 ms 84.116.134.61 (84.116.134.61) 40.418 ms 84.116.136.22 (84.116.136.22) 36.507 ms 11 ams-ix.ams-cr1.bahnhof.net (195.69.144.99) 38.430 ms 38.473 ms 42.336 ms 12 ams-cr1.cph-cr1.bahnhof.net (46.59.112.26) 42.201 ms 38.980 ms 36.493 ms 13 cph-cr1.mmo-cr1.bahnhof.net (85.24.151.246) 47.877 ms 49.929 ms 49.882 ms 14 mmo-cr1.sto-cr3.bahnhof.net (85.24.151.108) 46.963 ms 46.938 ms 55.098 ms 15 sto-cr1.pio-dr3.bahnhof.net (85.24.151.225) 53.173 ms 52.898 ms 52.927 ms 16 pio-dr3.pio-dr2.bahnhof.net (85.24.151.72) 52.863 ms 51.261 ms 49.389 ms 17 sto-cr1.sto-cr2.bahnhof.net (85.24.151.1) 51.399 ms 46.986 ms 49.730 ms Kind regards, Ingo Flaschberger

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volunteer.gov dns admin
by Basil Baby 26 Jan '12

26 Jan '12

We tried many ways to get a dns admin for volunteer.gov. If anyone available in this list, please contact me off the list. Sorry to spam on this list. Thanks, -Basil Baby

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Scaled broadband access with pppoe
by Mike 26 Jan '12

26 Jan '12

Hi, I am looking for pointers or stories from the field concerning the operational challenges faced by operators of large scale broadband access, particularly those who serve lots of PPPoE. I'm interested in hearining about your pain, what heroics you have had to jump thru to get what you wanted, what kinds of things keep you up at night (or let you sleep, your choice). No sales, I'm an operator too and have my own list of pain points and just wanna compare notes is all. Thank you. Mike-

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RE: LX sfp minimum range
by George Bonser 26 Jan '12

26 Jan '12

> > I believe you've got that backwards. See ciscos's sfp pages. Lx will go > 550m on mm, 10k on sm. (though it doesn't tend to do that well on mm in > my experience. ) I sure did! Thanks for pointing that out. George

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