[61657] in North American Network Operators' Group
Re: Sprint NOC? Are you awake now?
daemon@ATHENA.MIT.EDU (Nenad Pudar)
Tue Sep 2 15:13:47 2003
Date: Tue, 02 Sep 2003 15:11:55 -0400
From: Nenad Pudar <npudar@teleglobe.net>
To: Joel Jaeggli <joelja@darkwing.uoregon.edu>
Cc: Jared Mauch <jared@puck.Nether.net>,
neal rauhauser <neal@lists.rauhauser.net>,
Simon Lockhart <simon.lockhart@bbc.co.uk>, nanog@merit.edu
Errors-To: owner-nanog-outgoing@merit.edu
--------------050502070405000301030202
Content-Type: text/plain; charset=US-ASCII; format=flowed
Content-Transfer-Encoding: 7bit
OK
The point is that ipv6 connection is not good enough to be used.
And for the sites that have the same dns for ipv4 and ipv6 ipv6 in a way
"blackhole" ipv4 connection.
In this case puck.nether.net is timinig out from time to time (going
over ipv6) instead of going over ipv4 network.
Joel Jaeggli wrote:
>On Tue, 2 Sep 2003, Nenad Pudar wrote:
>
>
>
>>Jared
>>
>>Ido not understand what you consider as problem here (the problem is not
>>the latency which is more or less normal thing for ipv6 at this time)
>>"The problem" also showing on you box is that dns6 is resolved first
>>forcing the connection to be ipv6 which is not something that we really
>>want at this stage.
>>
>>
>
>really, why not? I don't know anyone who wants to use v6 only if v4
>connection attemts fail.
>
>
>
>>That is why my point is that at this stage people should not have the
>>same dns for ipv4 and ipv6 site.
>>
>>Does any body know what is needed in config (resolver library) in order
>>to force the client to look first in dns 4 and not dns6 ?
>>
>>
>>thanks
>>
>>nenad
>>
>>
>>
>>
>>Jared Mauch wrote:
>>
>>
>>
>>>On Tue, Sep 02, 2003 at 11:32:34AM -0400, Nenad Pudar wrote:
>>>
>>>
>>>
>>>
>>>>Jared
>>>>
>>>>The "problem " with your site is that it has the same dns for ipv4 and ipv6
>>>>In may case on dual-stack unix (sun) box dns6 is always resolved first
>>>>(properly) and then sometimes because of the latency (ipv6) it times out.
>>>>On the other hand that prevents me from going through ipv4 connection
>>>>which is good
>>>>
>>>>
>>>>
>>>>
>>> Sounds like a sun related issue, I'm seeing no problem with my
>>>other IPv6 enabled hosts.
>>>
>>> eg:
>>>
>>>;; Total query time: 166 msec
>>>;; FROM: punk.nether.net to SERVER: puck 2001:418:3f4:0:2a0:24ff:fe83:53d8
>>>;; WHEN: Tue Sep 2 11:37:44 2003
>>>;; MSG SIZE sent: 17 rcvd: 509
>>>
>>>
>>>
>>>
>>>
>>>
>>>># getent ipnodes puck.nether.net
>>>>2001:418:3f4:0:2a0:24ff:fe83:53d8 puck.nether.net
>>>>204.42.254.5 puck.nether.net
>>>># traceroute puck.nether.net
>>>>traceroute: Warning: Multiple interfaces found; using :: @ ?
>>>>traceroute to puck.nether.net (2001:418:3f4:0:2a0:24ff:fe83:53d8), 30
>>>>hops max, 60 byte packets
>>>>1 2001:5a0:5000:1:: 2.078 ms 1.316 ms 1.149 ms
>>>>2 2001:5a0:8::1 1.648 ms 1.539 ms 1.351 ms
>>>>3 viagenie.tu-3.r00.snjsca06.us.b6.verio.net (2001:418:0:4000::26)
>>>>34.631 ms 34.674 ms 34.540 ms
>>>>4 tu-3.r00.snjsca06.us.b6.verio.net (2001:418:0:4000::25) 122.123 ms *
>>>>122.248 ms
>>>>5 tu-840.r00.asbnva01.us.b6.verio.net (2001:418:0:2000::22) 184.074 ms
>>>>184.211 ms 184.405 ms
>>>>6 t2914.nnn-7202.nether.net (2001:418:0:5000::15) 261.417 ms 245.284 ms
>>>>233.555 ms
>>>>7 2001:418:3f4:0:2a0:24ff:fe83:53d8 224.388 ms 225.100 ms 226.350 ms
>>>>#
>>>>
>>>>I think everybody should think about using the same dns for ipv4 and ipv6
>>>>
>>>>
>>>>
>>>>
>>>phat:~> getent ipnodes puck.nether.net.
>>>2001:418:3f4:0:2a0:24ff:fe83:53d8 puck.nether.net
>>>204.42.254.5 puck.nether.net
>>>phat:~> traceroute puck.nether.net
>>>traceroute: Warning: Multiple interfaces found; using 3ffe:a00:f:4::2 @ le0:1
>>>traceroute to puck.nether.net (2001:418:3f4:0:2a0:24ff:fe83:53d8), 30 hops max, 60 byte packets
>>>1 rtr2-eth1-1.blackrose.org (3ffe:a00:f:4::1) 1.433 ms 1.509 ms 1.318 ms
>>>2 nnn-3640-tu2 (3ffe:a00:f:1::9) 84.991 ms 24.209 ms 12.557 ms
>>>3 2001:418:3f4:0:2a0:24ff:fe83:53d8 12.423 ms 15.002 ms 46.298 ms
>>>
>>>
>>>
>>>
>>>
>>>>nenad
>>>>
>>>>Jared Mauch wrote:
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>On Fri, Aug 29, 2003 at 05:14:49AM -0500, neal rauhauser wrote:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>I didn't know their NOC number, puck.nether.net is down, normal phone
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>> Uh, puck is fine.
>>>>>
>>>>>http://puck.nether.net/netops/nocs.cgi?ispname=sprint
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>channels lead to voicemail jail. Sorry to disturb your morning but its
>>>>>>much easier to complete by 0600 than to have five counties worth of
>>>>>>users dialing a phone right next to where you're working.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>> - Jared
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>--
>>>>
>>>>
>>>>
>>>>
>>>>Nenad Pudar
>>>>IP Network Engineer
>>>>TELEGLOBE
>>>>phone: 1 514 868 8053
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>
>>
>
>
>
--
Nenad Pudar
IP Network Engineer
TELEGLOBE
phone: 1 514 868 8053
--------------050502070405000301030202--
