The New Zealand Network Operators' Group
The New Zealand Network Operators' Group (NZNOG) has no king,
president or formal membership. At present it consists of the
subscribers to this mailing list, which anyone is free to join.
Our next annual conference is to be hosted by the WAND group in Hamilton
on February 2nd to 4th, 2005. See http://www.nznog.org/ for more
information, including the Call For Presentations. Offers to present are
due in by 22nd October, and all presenters
should have had their acceptance confirmed by 31st October.
Also see http://auckland.thursdaynightcurry.com/ if you live in or near
Auckland or Wellington.
Operators' Contact List
See http://www.usenet.net.nz/noc/ for operational contact details
for most New Zealand ISP's. These are intended for use by other
network operators, not by most customers.
See http://www.ape.net.nz/ for details of the Auckland Peering
Exchange and those connected there. See http://www.wix.net.nz/ for the
Wellington Internet Exchange.
About This Mailing List
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responsible for its content.
NZNOG Mailing List Acceptable Use Policy
The NZNOG mailing list exists to provide a forum for the exchange of
technical information and the discussion of implementation issues
that require cooperation among New Zealand network service providers.
In order to continue to provide a useful forum for discussion of
relevant technical issues, users of the list are asked to respect the
1. Discussion will focus on Internet operational and technical
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NZNOG Mailing List Owner/Administrator/Muggins
Donald Neal |Palmersdale: Are you in charge here?
Technical Specialist |The Doctor: No, but I'm full of
Operations Engineering | ideas.
Integration & Services Division +-----------------------
Alcatel NZ Ltd - Telecom's network operations manager
"This communication, including any attachments, is confidential.
If you are not the intended recipient, you should not read
it - please contact me immediately, destroy it, and do not
copy or use any part of this communication or disclose
anything about it. Thank you. Please note that this
communication does not designate an information system for
the purposes of the Electronic Transactions Act 2002."
This is to notify you that some object(s) in NZRR database
which you either maintain or are listed as to-be-notified have
been added, deleted or changed.
These objects are used to configure the various NZIX route
servers (http://nzix.net/) so you can expect the relevant
servers to be reloaded in the near future. The reloading
of the servers is staggered over a period of time so that
if you are peering with both servers at an exchange, you
can maintain at least one BGP session at all times and
consequently a full set of routes.
descr: Route set advertised to AS9439 by HDS - AS18353
changed: rpsl-admin(a)nzix.net 20051006
descr: advertised to AS9439 by Revera - AS18353
changed: rpsl-admin(a)nzix.net 20060601
From: noc(a)global-gateway.net.nz [mailto:firstname.lastname@example.org]
Sent: Thursday, 1 June 2006 00:28
To: global-gateway outage contacts
Subject: GGIS Service Message : Major
GGIS Backbone Update
Global-Gateway Internet is currently experiencing service disruption
which began at 21:40 hrs, 31/05/06date
You are likely to experience major international congestion of your
service until this problem is resolved.
A cable fault has been identified in the USA near San Francisco.
Currently, we are have no expected time for restoration.
GGIS apologises for any inconvenience to you or your customers, and an
update will follow within 2 hours.
Logged by Andrew Murray on Thu Jun 1 00:27:59 2006
Just a heads up for anyone not aware of this...
Hoax police email
10:03am 31 May 2006
A hoax email is circulating within New Zealand which purports to be a
notification from NZ Police. The email has this subject line - "Notification
from Police New_Zealand"
The email is clearly a hoax but is causing some concern in the public with
callers contacting police for clarification.
The email suggests that recipients are "under suspicion of financial
machination." It then asks receivers to fill in details and fax or email
Police are investigating the email which does contain a trojan virus. The
virus will be filtered out so long as computers have anti-virus software on
Members of the public who are receiving the email with the subject line -
"Notification from Police New_Zealand" - should simply delete it and do not
need to contact Police about the matter.
Operators should be aware that due to increased demand on our
podcasting service, and the number of requests we've had to increase the
quality of the files, we'll be increasing the data rates of all files
offered from our US mirror.
At the moment all US files have the same names as NZ hosted files, but
are actually lower rates. Over the next 2 weeks this will change, with
the US server becoming a full mirror. The data rates of files will
double (from 24k to 48k) to match those hosted in NZ.
We've been able to do this because we have extra capacity in the US and
can serve the extra traffic at no additional cost to us.
At present NZ bound traffic from the US server sits at 10-15 Mb/s
during the day.
Local operators who do not peer with our NZ servers will see an
increase in international inbound traffic (about double) from the US
mirror over the next two weeks. After that you should allow for an
increase of 10-15% per week - our current growth rate.
Those who peer with our servers in New Zealand are not affected by this
Not that this isn't because the IPv6 camp are giving up and going home. (:-)
-------- Original Message --------
Subject: APNIC ip6.int services to end 1 June 2006
Date: Mon, 29 May 2006 21:31:42 +1000
APNIC will cease all ip6.int reverse delegation services at approximately 10:00
UTC+10 (00:00 UTC) on 1 June 2006.
At that time, APNIC will withdraw the delegations for the following sub-domains
All ip6.int delegations within these sub-domains will then cease to be
recognised by most DNS resolvers (although cached delegation information may
take some time to expire).
APNIC will back-up all whois objects associated with these sub-domains and will
continue to monitor DNS traffic during this period to review behaviour. However,
as the IETF has formally deprecated ip6.int for reverse-DNS, re-delegation is
not expected to occur.
Technical Services Manager <sanjaya(a)apnic.net>
APNIC ph +61 7 3858 3100
http://www.apnic.net fx +61 7 3858 3199
Hello.. . TelstraClear hosts this NZ root name server replica on its infrastructure.
We are physically moving the servers that run this name server this weekend.
This will cause an outage to ns4.dns.net.nz at around
6AM Saturday 27th May 2006
for around 2 minutes, when we migrate the routing for the name server from one site to the new site.
(TelstraClear IS Operations)
Interesting numbers. After a few weeks of bad performance on an Internet
feed I look after I was drawn back to an issue I thought was long buried.
This circuit was dropping 4-5% of its traffic at well below advertised
capacity. The delivery method was ethernet over ATM/AAL5 (RFC1483). The
usual suspects were rounded up and shot (duplex and error counters, purple
switches, the cleaning lady).
The next question was overhead for cell tax and encapsulation. 12% seems to
be the allowance by our supplier. IIRC this is the same as was used 10
years ago for ATM VCs delivered directly to routers (no ethernet involved);
nanog has a few dusty posts about this number. It seems this is no longer
enough. Perhaps average packet sizes have changed since then if 12% was
ever a reasonable number.
In the end our supplier ramped overhead to about 20% and the pipe has
performed nicely since. For an ethernet service, I don't understand why
they don't simply provision the VC (VBR) as large as the customer bearer can
handle and let the end devices do the shaping.
Michael's numbers including AAL5 padding give this new figure some context:
Upstream: cell tax = 14.84% (18.09% AAL5)
Downstream: cell tax = 18.35% (23.43% AAL5)
Is anyone aware of a recent study of packet size distribution on Internet
traffic? CAIDA have some information from the AIX in 1999, NLANR from '97,
and Sprint do a semi-regular dump from their ipmon project.
>From netflow stats on this link, I see a similar story with 64, 576 and
1536B being the points of most interest.
The percentage of 1536B packets (~25) I think is larger now than previously.
Has anyone had similar frustrations with PVC dimensioning?
Does anyone else still use ATM? :)
On 5/23/06, Michael Newbery < Michael.Newbery(a)team.telstraclear.co.nz>
> Prompted by Mark Seward, we have had a look at the cell tax incurred for
> customers, in those cases where we are unfortunate enough to have to
> an ATM pipe. Which has not been the usual case on our network but becomes
> interesting for things like UBS.
> This enables us to answer the question: for a pipe of x bps sufficient to
> carry pure IP, how much bigger must the ATM PVC be to carry the same load?
> IP_bw = x
> ATM_bw = ceiling(x/48)*53
> Diff = ATM_bw - IP_bw
> Cell_tax = Diff/IP_bw
> For a sample SAMP, we calculate the mean cell tax as
> (sum(ceiling( SAMP/48)*53) - sum(SAMP))/sum(SAMP)
> Looking at a 24 hour sample, we get:
> Upstream: cell tax = 14.84%
> Downstream: cell tax = 18.35%
> I understand that this is somewhat at variance with the standard
> provisioning rules applied by another provider.
> Michael Newbery IP Architect TelstraClear Limited
> Tel: +64-4-920 3102 Mobile: +64-29-920 3102 Fax: +64-4-920 3361
> NZNOG mailing list
Pardon the intrusion and slightly off topic subject:
Interested in Internet governance?
InternetNZ is recruiting directors to sit on the Board of its subsidiary
company, New Zealand Domain Name Registry Ltd (trading as .nz Registry
Services or "NZRS"); and members to sit on the .nz Oversight Committee
("NZOC"), which has stewardship of the .nz domain name space.
These positions provide an exciting opportunity to contribute to the good
governance of the .nz domain name space. Company directors and those with
general governance skills are encouraged to apply for the appropriate
The retiring incumbents are eligible for reappointment.
Complete descriptions and application details for both roles can be found
online at www.internetnz.net.nz/vacancy. More information on the Office of
the Domain Name Commissioner can be found at www.dnc.org.nz; and about the
registry company at www.nzrs.net.nz.
Applications by email to vacancy(a)internetnz.net.nz are invited from suitably
qualified people, and close at midnight on Saturday 3 June. Please follow
the links above for further details.
If you are aware of anyone who you feel would be appropriate for one of the
vacancies, we would be most grateful if you could forward this information
Furthermore, it is coming up to AGM time for InternetNZ and we are always on
the lookout for enthusiastic people to serve on our Council and various
committees and working groups. Links to further details on these positions
are at www.internetnz.net.nz/vacancy.
Any successful recruitment from a connection with NZNOG will result in a
reward of provision of beer to all associated.
Executive Director - InternetNZ