Alexander Harrowell wrote:
Anyway, I wouldn't write a letter with nothing worth reading on the
first page. I don't write articles with nothing in the first
paragraph. Why should over a billion users of the English language,
etc, etc..
We're not talking about a letter or an article. We're
Randy Bush wrote:
Don Welch, Merit Network wrote:
Reducing to two meetings per year means we lose some economy of scale
and would have to raise the price further. Regardless, we looked at
this option and the SC felt there was a need for 3 meetings per year -
so here we are.
this statement is
People who volunteer to fill roles in an organization
need to be shielded from attempts to micromanage them
or else they will cease to volunteer.
Martin Hannigan wrote:
And people who fail to set expectations for volunteers
should expect to fail.
NANOG Charter, section 8.3.2, Program
Richard A Steenbergen wrote:
Unless we're ready to admit that NANOG is completely and totally worthless
as a forum for discussing network operations, people NEED to step up and
take responsibility for the self policing that we're all supposed to be
doing in srh's absence.
I think you meant
Hank Nussbacher wrote:
And the same way that government forced telephone number portability, I
foresee one day government requiring IP number portability among ISPs in
order to increase competition. So all those SWIPS and PA assignments in
ARIN/RIPE/APNIc may one day be used to allow Acme
[EMAIL PROTECTED] wrote:
*Cogent Network Status/DNS Server Status Description:
*Welcome to Cogent Communications’ Network Status Message. Today is
Thursday April 27th 2006 10am EST.
At this time, Cogent is experiencing latency and routing issues on the
Cogent backbone. The NOC is currently
Arnold Nipper wrote:
gw001#sh ip bg 64.35.192.0
BGP routing table entry for 64.0.0.0/4, version 247378
Should we really be seeing 64/4? That's an awfully big aggregate...that
I don't see in ARIN as an exact-match.
(Paging the filter police...)
pt
Drew Weaver wrote:
We have heard a lot of negatives about them, about their pricing
model, about their network, about de-peering with Level 3, etc. What we
really need is actual information.
Here's a good one about Cogent. 100BaseTX connection from us to a
Cogent Cat3550 (A). A
An argument could be made for individual VLANs to keep things like b-
cast storms isolated. But I think the additional complexity will
cause more problems than it will solve.
One must keep in mind that human error is the dominant cause of outages,
and since there's not likely to be
(I'm not claiming to be local to Dallas, but thought I'd point this out.)
Most folks know that odd-numbered Interstate Highways run North/South.
I-35 runs through Dallas, and through Fort Worth. If you fly into DFW,
your travel will likely run along part of I-35. Here's the kicker: I-35
Patrick W. Gilmore wrote:
Is it a reasonable alternative to establish a BGP connection with the
provider over ethernet?
It is technical feasible, but I don't think 'reasonable'. Stub ASes
are pollution on the 'Net.
OK, let's try a similar but different scenario. Customer has ISP A,
Deepak Jain wrote:
If that model doesn't work for the ISP in question, they should ask
Akamai to pull their gear.
And hopefully they'll (someday) send servers in my direction - is their
minimum criteria creeping upwards at the same rate as overall Internet
traffic did in the late 90s?
pt
Richard A Steenbergen wrote:
Pete Templin wrote:
John Curran wrote:
Cold-potato only addresses the long-haul; there's still cost on the
receiving network even if its handed off at the closest interconnect
to the final destination(s).
And there's still revenue, as the traffic is going
Richard A Steenbergen wrote:
Yes with enough time and energy (or a small enough network) you *can* beat
perfect MEDs out of the system (and your customers). You can selectively
deaggregate the hell out of your network, then you can zero out all the
known aggregate blocks and regions that are
Jeff Aitken wrote:
On Wed, Nov 02, 2005 at 02:44:20PM -0600, Pete Templin wrote:
I came up with a reasonably scalable solution using communities and
route-map continue, but:
For what value of scalable?
For me, plenty, but a four-POP single-state network usually has
different constraints
John Curran wrote:
Cold-potato only addresses the long-haul; there's still cost on the
receiving network even if its handed off at the closest interconnect
to the final destination(s).
And there's still revenue, as the traffic is going to customers (we all
filter our prefixes carefully,
The Hilton website is suggesting a $13 far for bus service from LAX to
NANOG 35 and $50 for taxi. Any recommendations on where to find said
bus service, and if reservations are necessary?
See you in St. Loui^H^HLA!
pt
Justin M. Streiner wrote:
Remember that when backbones peer with each other, they typically (and
as normally dictated by peering policies on both sides) only announce
their own routes and the routes of their downstream customers and agree
not to announce a default route to each other. They
Scott Weeks wrote:
I am going to be announcing two new prefixs into BGP soon
and the netgeek in me is very curious as to the length of
time it takes to show up in other parts of the world that're
logically far from Hawaii. Instead of going to
www.traceroute.org and refreshing repeatedly, I
Christopher L. Morrow wrote:
shiny side out one hopes? Seriously though, I'm not a telco/phone person,
but I was once told that the phone switch equipment does the tap
'automagically' to special ds-1 facilities inn LEA-land... which means the
cell phone can be wrapped in anything you'd like.
Andre Oppermann wrote:
I have never seen any real study by the emergency response services
on how many problems they actually have other than isolated worst-
cases and a lot of political rah-rah. In the end I expect that any
technically feasible improvement to the cell phone position accuracy
Randy Bush wrote:
showing that ios won't crash is very difficult because the number
of versions of ios, and the amazing dependencies of things on which
blade is in which slot and what phase is the moon.
Thank you. You've provided a clean, concise counter to Lorenzo's
original claim that
Randy Bush wrote:
could you please give me the command to configure ios to not crash
if given advance notice?
telnet your.mail.server 25
helo your.pc
mail.from you
mail.to you
data
Be sure to sit near a terminal with OOB access to your network at XYZ
while an experiment is conducted with
Edward B. Dreger wrote:
Considering Lorenzo's attitude, I'm sure he's taking into account the
requests for more heads up. If he tickles an IOS bug, I'd rather have
it happen in this scenario than when a less-clued individual or a
miscreant tries announcing wacky routes.
Bull. His
Jay R. Ashworth wrote:
From down here, like Dave, at the relative bottom of the food chain, I
must agree with him and Steve, though I do understand Richard's
concerns there, and they're valid ones.
The Internet needs a PA system.
Problem is, the people who are equipped to talk, and, by and
[EMAIL PROTECTED] wrote:
This is new to me, but I haven't bought any new transit in the past 18 months
-- is
this common practice on multihomed BGP customers now? I could force things to
work
by always advertising all my prefixes out to them with the obvious downside of
living in fear of my
Andre Oppermann wrote:
No, my proposal works as long as the customer advertizes their prefixes
via BGP, not matter how long the path or what community attributes are
set (for example NOEXPORT). No matter how they send it, as long as they
send it, it works fine. Unlike uRPF which depends on
Pekka Savola wrote:
On Mon, 23 May 2005, Tony Li wrote:
Which is EXACTLY why we need to remember that we are NOT trying to come
up with the perfect solution. We have operational issues *TODAY* that
we are trying to address.
- We have people (admittedly accidentally) advertising prefixes
John van Oppen wrote:
Anyone know anything about the Fiber cut that took Cogent's Seattle POP
out of commission at about 6 PM (PST) today?
AboveNet reported a fiber cut at 1852PDT which they believe to be in the
Sacramento area. Oddly enough, we saw a regular stream of ~5000 BGP
update
Philip Lavine wrote:
Update:
I am prepending my AS 3 times to the un-preferred ISP.
Both ISP's are my peers. The un-preferred ISP claims
the see my advertisement yet they do not add it to
their routing table (suggests filtering??). They claim
all the filtering they are doing is based on the
Luke Parrish wrote:
Trying to get clarification on an issue.
Maintenance/outage window is 2:00AM to 5:00AM, during the window the
router we are working on fails and does not come back online until 8:00AM.
From a outage reporting/documentation standpoint is the outage start
time 2:00AM or
Robert Bonomi wrote:
OK, what am I missing?
*ASSUMPTION*:
The holder of the /16 _has_ delegated rDNS for the 32 /24s to the /19 owner.
The /19 owner can, on it's nameserver, run an authoritative zone for
the /16 -- with _its_ /24s listed explicitly, and a wildcard pointing
back to the rDNS
Charlie Khanna - NextWeb wrote:
Can anyone recommend a good book on MPLS? Im looking for something
that will illustrate network design/implementation (including possible
Cisco configs) with MPLS. Thanks!
All Cisco Press:
MPLS and VPN Architectures, CCIP edition (Pepelnjak, Guichard) is an
Deepak Jain wrote:
If providers start tying their customer's blackhole announcements to the
provider's upstreams' blackhole announcements in an AUTOMATIC process,
bad things tm are likely to happen. What happens when a customer of a
provider mistakenly advertises more routes than he should
Robert Boyle wrote:
You can travel up to 655 ft. with a T1 cable from the NTU which the
phone company will drop at your site. According to the letter of the
specs, you are supposed to use T1 cable two 22AWG pairs individually
shielded to prevent cross-talk. In practice, we have extended DMarcs
Alexander Hagen wrote:
I bought a Riverstone Rs-3000 for BGP with a single upstream provider.
Great Deal.
Yeah, it might be a Great Deal (tm), but you're in for some surprises.
I've seen an RS-8600 (with CM3 and 512MB on board) nearly melt under
13Mbps of Nachi, to the point that I had to set
Robert E. Seastrom wrote:
Seconded. This is dirt simple to do. If we believe in public
humiliation, a list of infected machines and their owners (along with
a suitably snarky don't hire these top network engineers to maintain
your fleet of windows boxes message) could be displayed on the
Laurence F. Sheldon, Jr. wrote:
Pete Templin wrote:
There's a reason I've gotten out of small ISP consulting - I don't do
Windows, and I'm getting overrun by Linux corrosion slowly. I route,
I switch, I help with securing networks. And I do wear a lot of hats
at my day job, but I remind them
Laurence F. Sheldon, Jr. wrote:
Pete Templin wrote:
I didn't suggest saying I'm not gonna do it. I just suggested You
hired me to deploy dynamic routing on your statically-routed network.
What prompted you to think that I could configure site-wide anti-virus
services such that no one ever
Are you sure no one died as a result? My hobby is volunteering as a
firefighter and EMT. If Level3's network sits between a dispatch center
or mobile data terminal and a key resource, it could be a factor
(hospital status website, hazardous materials action guide, VoIP link
that didn't
:
If you're counting on IP (a best attempt protocol) for critical
data, you've got a serious design flaw in your system...
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Pete
Templin
Sent: Wednesday, February 25, 2004 9:10
To: Colin Neeson
Cc: [EMAIL
This might be it: http://www.nanog.org/mtg-0006/confed.html
(It's certainly been a great reference to me!)
Sam Stickland wrote:
Hi,
There was a link posted to this list about six months ago, of a presentation
that showed how to use additive MEDs to set up traffic flows correctly
between sites
[EMAIL PROTECTED] wrote:
ARIN could however do more to help, such as providing special temporary
test blocks on request
Perhaps ARIN (or others) could supply their respective portions of
unallocated space to a common BOGON project?
pt
Petri Helenius wrote:
[EMAIL PROTECTED] wrote:
It's those dang Nachi-sized ICMP echo/echo-replies. We block those at
all our transit points and dial-up ports. Nachi was killing our cisco
access-servers until we did this to stop the spread.
I know what they are and how to get around them. I
Alright, I'll bite.
What are the NANOG-approved MTA/MUAs for this list that sort by
conversation thread, run on Windows, send in wrapped plain text, have
NANOG-approved OOO messages, and otherwise don't cause a flamestorm on
the list?
-Original Message-
From: [EMAIL PROTECTED]
You're correct in saying that OOO messages from Exchange are offensive. However, I
don't think you should necessarily consider the subscriber as the offender - I for one
have no choice in what email software is run at my corporate office. Everyone in my
corporate IT group is so busy
It's not a dispute, it's a dollar$ decision on behalf of Sprint and/or MFN.
Hmmm, I'm getting paid by 6939 but not by 3356. I'll send my traffic through 6939 by
increasing my local preference to them.
Pete Templin
Senior Staff Engineer
TexLink Communications
(210) 892-4183
[EMAIL PROTECTED
. Meanwhile, as 6939 announces your routes to
their upstreams, those networks are using a default or paid customer local
preference. Since local preference comes before AS path length, you have to remotely
twiddle local preference to get results.
HTH,
Pete Templin
Senior Staff Engineer
TexLink
That suggests that it's an ASL (Analog Subscriber Line)...
Pete Templin
Senior Staff Engineer
TexLink Communications
(210) 892-4183
[EMAIL PROTECTED]
-Original Message-
From: Bradley Dunn [mailto:[EMAIL PROTECTED]
Sent: Monday, October 13, 2003 4:05 PM
To: Christopher X. Candreva
Very rusty memory cells on this, but I think the mileage is 0.1 * sqrt ((delta-V)^2 +
(delta-H)^2)). That's assuming same LATA, IIRC.
Pete Templin
Senior Staff Engineer
TexLink Communications
(210) 892-4183
[EMAIL PROTECTED]
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL
will take place all over the 'Net, and YMMV
on the traffic balance. On or before disconnecting the link to old provider (if they
are specifically announcing your /24), be sure to have them stop announcing that /24.
Pete Templin
Senior Staff Engineer
TexLink Communications
(210) 892-4183
[EMAIL
the reference to the old nameservers for 1-2 days, but will eventually forget
that and be told to ask the new nameservers.
Try the O'Reilly book on DNS and BIND; the mud will become clear as spring water.
Pete Templin
IP Network Engineer
Tex-Link Communications
[EMAIL PROTECTED]
(210) 892-4183
buffer on the next FED-EX truck?
Pete Templin
IP Network Engineer
TexLink Communications
(210) 892-4183
[EMAIL PROTECTED]
On Mon, 7 Oct 2002, Ralph Doncaster wrote:
When you setup a secondary ip on an interface
int fa0/0
ip address a.b.c.d e.f.g.h secondary
How does it determine where to send the packets? ARP.
Which is the same as adding the route described above.
From what I've read so far, it looks
On Mon, 7 Oct 2002, Ralph Doncaster wrote:
On Mon, 7 Oct 2002, Majdi S. Abbas wrote:
Ralph, how do you intend on getting traffic *OUT* of this subnet?
Static arp entries on all the hosts? Proxy arp? It seems like that would
be a lot more work and much more failure prone in the
On Mon, 7 Oct 2002, Ralph Doncaster wrote:
It seems pretty obvious to me that if you have a an ethernet segment with
multiple routers on it that adding a secondary IP to each one is more
complicated and error-prone than adding it to one and having a dynamic
routing protocol notify the rest
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