Scott,
Do you want
CWDM - Course Wave Division Multiplexing - > 100 nm optical
spacing 1 - 10 x 2.5 - 10 Gbps lambdas
DWDM - Dense Wave Division Multiplexing - =50 nm optical
spacing 20 - 40 x 2.5 - 10 Gbps
UDWDM - Ultra Dense Wave Division Multipl
Net map.
What is the largest number of lambdas you have actually run on a single fiber
with your duct tape system and how bad was the optical cross talk?
john
From: Alex Pilosov [EMAIL PROTECTED]
Sent: Friday, April 25, 2008 1:37 PM
To: John Lee
Cc: Sco
run stuff you will
pay for it.
Side note, I liked your two presentations.
john
From: Alex Pilosov [EMAIL PROTECTED]
Sent: Friday, April 25, 2008 1:58 PM
To: John Lee
Cc: Scott E. MacKenzie; NANOG
Subject: RE: [NANOG] DWDM More Details
On Fri, 25 Apr 2008
Scott,
There are solutions that support both static, quasi-static, also driving DHCPv6
servers and Dynamic DNS updates. There are networks that have deployed IPal to
automate and consolidate their IPv4 and IPv6 block allocations and interface
assignments. Router Prefix delegation, SLAAC and DHC
Glen,
With the v4 networks that I have worked on in the past, they did not do end to
end MTU discovery before sending packets. The TTL had to be set appropriately
so that if you had low speed links, for example, the packet and response would
get through in time. On our DS3 (T3) and OC-3c packet
From: John Lee [EMAIL PROTECTED]
Sent: Wednesday, August 20, 2008 2:10 PM
To: Glen Kent; OPS Gurus
Subject: RE: IP Fragmentation
Glen,
With the v4 networks that I have worked on in the past, they did not do end to
end MTU discovery before sending packets. The TTL
Unless they have installed a DAS system for cell signal transport or a number
of micro or nano cells in the building they will have congestion. But what is a
political convention without a little congestion.
John (ISDN) Lee
From: Dorn Hetzel [EMAIL PROTE
1. The technique is not new it is well known BGP behavior and not stealthy to
people who route for a living.
2. When your networks use VPNs, MPLS, IPsec, SSL et al you can control what
packets are going where.
3. When you are running some number of trace routes per hour to see how and
where yo
ick W. Gilmore [EMAIL PROTECTED]
Sent: Wednesday, August 27, 2008 11:18 PM
To: NANOG list
Subject: Re: Revealed: The Internet's well known BGP behavior
On Aug 27, 2008, at 11:07 PM, John Lee wrote:
> 1. The technique is not new it is well known BGP behavior and not
> stealthy to people
indicate if the standard route was being taken or another one. When
certain links went down several additional hops would be added to the list.
John (ISDN) Lee
From: Adrian Chadd [EMAIL PROTECTED]
Sent: Wednesday, August 27, 2008 11:32 PM
To: John Lee
Cc
]
Sent: Thursday, August 28, 2008 12:10 AM
To: NANOG list
Subject: Re: Revealed: The Internet's well known BGP behavior
On Aug 27, 2008, at 11:47 PM, John Lee wrote:
> The traceroute utility that I used gave me a list of hops that the
> packet I was interested in transited and a t
tions include coverage from 1471 nm to 1611 nm, plus SONET and Gigabit
Ethernet compliance for data rates with or without G.709 FEC.
>From Alex's older e-mail:
On Fri, 25 Apr 2008, John Lee wrote:
> Subscribe to Lightwave (at no charge) and look at the back issues for
> networks.
Mike,
Your latencies which suddenly appear for several hours and then go away and do
this on a regular basis sounds like a layer 2, facility switching issue. As
you indicated " the problem comes on during the day and then lets up late in
the evening" sounds like the under lying facility is bei
of the
lengthening delay and what other activity event would correlate with it.
John
From: kris foster [EMAIL PROTECTED]
Sent: Friday, September 26, 2008 3:17 PM
To: John Lee
Cc: mike; nanog@nanog.org
Subject: Re: high latency ds3 issue on unloaded line
Michael,
>From my work in access networks they are:
IPv6 native support for:
Routed Access - Ethernet or Wireless, global prefix under the main or dot1Q isl
encapsulated sub-interfaces.
For DSL and ATM PVCs routed RFC 2684 encapsulation with a different IPv6 prefix
for each one of the PVCs.
for fuller
deployment of IPv6 to residential customers.
John
From: Mikael Abrahamsson [swm...@swm.pp.se]
Sent: Saturday, February 07, 2009 1:12 PM
To: John Lee
Cc: nanog@nanog.org
Subject: RE: IPv6 delivery model to end customers
On Sat, 7 Feb 2009, John
Jason,
Fore was purchased by Marconi who sold me the Fore ASX switches for a broadband
access network in 2001. Ericsson still seems to be selling ASX and TNX boxes.
Do you have access to an ATM protocol anlyzers with the port type and speeds
you are running?
John (ISDN) Lee
__
What is all this talk about AC. Real data centers use DC.
John (ISDN) Lee
From: Seth Mattinen [se...@rollernet.us]
Sent: Tuesday, May 26, 2009 3:39 PM
To: nanog@nanog.org
Subject: Why choose 120 volts?
I have a pure curiosity question for the NANOG crowd
It is the DISA DOD NIC at:
https://disa.mil/About/Contact
Which will give you the DISA help desk phone number.
John Lee
On Mon, Nov 4, 2019 at 3:57 AM Chris Knipe wrote:
> Hi Guys,
>
> Except for the email on ARIN's details, does anyone else have a contact
> for th
I was seeing NXDOMAIN errors, so I wonder if they had a DNS outage of some
sort??
On Mon, Oct 4, 2021 at 5:14 PM Bill Woodcock wrote:
> They’re starting to pick themselves back up off the floor in the last two
> or three minutes. A few answers getting out. I imagine it’ll take a while
> before
Cisco and Juniper routers have had v6 functionality for over 10 years.
Lucent/Nokia, and others. Check UNL list at
https://www.iol.unh.edu/registry/usgv6 for v6 compliant routers and
switches.
John Lee
On Fri, Nov 19, 2021 at 5:48 PM John Levine wrote:
> It appears that Michael Thomas s
The short answer is that the "Cloud Native Computing" folks need to talk to
the Intel Embedded Systems Application engineers to discover that micro
services have been running on Intel hardware in (non-standard) containers
for years. We call it real time computing, process control,... Current
multi
If is a new US business and you are working internationally why not go
simple and use IPv6 addresses?
John Lee
On Thu, Oct 4, 2018 at 10:59 AM Ross Tajvar wrote:
> Thanks everyone who replied. I got many responses off-list, including a
> lot of positive endorsements for several dif
It is my understanding that ISPs block IP addresses and domains under court
order now for copyright violations, criminal activity which would include
CP. They require a court order as they cannot ascertain if it is CP or not,
that is a Law Enforcement decision. The US Supreme Court decision's was
j
IMHO,
Long runs of UTP (unshielded twisted pair) make wonderful antenna systems for
EMI and EMP which is why they are matched to differential drivers and receivers
to reject as much common noise as they are designed to. Older and larger
Ethernet interfaces have drivers separated from the logic
Some pseudo random thoughts and questions? (my BGP is rusty.)
1. Does it violate your AUP with APNIC?
2. If the larger routing prefix is from APNIC will your upstream in the EMEA
region filter or black hole the sub prefix since it is from APNIC and not RIPE
and would appear to be a hijacked blo
Andrew,
Earlier this week I had a meeting with the ex-Director of the Network
Operations Center for MFS-Datanet/MCI whose tenure was through 1999. From 1994
to 1998 they were re-architeching the Frame Relay and ATM networks to handle
the growth in traffic including these new facilities called p
The concept is called fractals where you can compress the image and send the
values and recreate the image. There was a body of work on the subject, I
would say in the mid to late eighties where two Georgia Tech professors
started a company doing it.
John (ISDN) Lee
On Wed, May 18, 2011 at 4:07 P
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