to faceplate capacity.
Unfortunately 100GBASE-LR4 will be with us for a long long time.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
/managed-switch/tl-sg3428/v2/
"IPv6 functions such as Dual IPv4/IPv6 Stack, MLD Snooping, IPv6 ACL,
DHCPv6 Snooping..."
--
Mikael Abrahamssonemail: swm...@swm.pp.se
On Tue, 26 Oct 2021, David Conrad wrote:
Ah. Cogent. I suspect IPv6 peering policies. Somebody should bake a
cake.
According to https://twitter.com/Benjojo12/status/1452673637606166536
Cogent<->Google IPv6 now works. A cake is in order, but perhaps a
celebratory one!?
--
On Fri, 10 Sep 2021, Sean Donelan wrote:
1. The “Emergency Power Off” button did not have a protective cover at the
time of the shutdown or the following WSP investigation.
Aka "molly-guard".
https://en.wiktionary.org/wiki/molly-guard
--
Mikael Abrahamssonemail: swm...@swm.pp.se
with both and there is no one-size-fits-all.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
On Thu, 3 Jun 2021, Mark Tinka wrote:
I'll let Mikael confirm, but last time I checked, Stokab was mostly (if
not all) Active-E.
Sweden is mostly Active-e. There is some PON nowadays though.
Stokab typically only rents out dark fiber, so they don't have any of it.
--
Mikael Abrahamsson
sell services themselves. It's a zoo.
There is muni broadband that sucks and there is muni broadband that is
great. Without defining what kind of muni broadband we're talking about
it's impossible to have a productive discussion.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
discussions
were pushed to github instead.
I personally think the "web forum" format is inferior but that might be a
way to reach out as well...
--
Mikael Abrahamssonemail: swm...@swm.pp.se
/internetintelligence/longer-is-not-always-better
--
Mikael Abrahamssonemail: swm...@swm.pp.se
-power-grid/
Going at it alone can be beneficial sometimes, sometimes it's not.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
at 10ms or so, to help
your customers with what they really care about, interactive performance.
I debloat my 1000/1000 with bidir 900/900 FQ_CODEL to avoid my downloads
affecting my interactive performance.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
high speed transfers.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
repeating it.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
uot;Go to My games & apps > Manage > Queue and note the download speed shown
on the game or app that’s being installed. "
--
Mikael Abrahamssonemail: swm...@swm.pp.se
be the bottleneck
if it's sitting on higher speed Internet access.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
1000/1000 with FQ_CODEL. It's worthwhile because even
1000/1000 can see RTT spikes of tens of milliseconds otherwise.
Bandwidth doesn't solve queuing and queuing doesn't solve bandwidth.
They're both needed.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
On Fri, 25 Dec 2020, Mikael Abrahamsson wrote:
On Thu, 24 Dec 2020, Ben Cannon wrote:
Anyone else doing it? Do you like your gear?
Haven't tested it myself, but the 10GE residential provider here in Sweden is
using some kind of Huawei HGW that typically is used for XGPON but has had
its
.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
primarily for service, network YANG
modules, (in addition to the usual use case of device modules),
- so quite a lot of data as you can imagine storing data for higher
abstraction layers Service & Network.
Been looking at ODL and Confd thus far.
http://www.sysrepo.org/
--
Mikael Abrahamssone
resetting the timer back to 0 and starting over does not help
deployment. It just kicks it another 20 years down the line.
You're just inventing yet another incompatible standard and you have to
touch everything, DHCP, DNS all applications etc.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
On Wed, 29 Apr 2020, Robert Blayzor wrote:
So as a happy medium of about 2048 ports per subscriber, that's roughly
a 32:1 NAT/IP over-subscription ?
Yes, around that.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
There are some numbers in there for instance talking about 1024 ports per
subscriber as a good number. In presentations I have seen over time,
people typically talk about 512-4096 as being a good number for the bulk
port allocation size.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
ld be very interesting if your could share what equipment you're
using that is doing ECMP hashing based on ECN bits. That vendor needs to
fix that or people should avoid their devices.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
cables and power cables.
PS. I don't have more details about this specific case.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
ts if your deployment and service offering has
similar properties to most of your competitors in the country.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
then it should work the
same as if you just had NAT44.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
On Fri, 2 Aug 2019, Baldur Norddahl wrote:
be a demand. Alternatively I need to find a different CPE vendor that
has MAP-E support, but are there any?
Broadcom supports MAP-E and LW4o6 encap/decap in fastpath on at least
BCM63138 with their latest BSP versions.
--
Mikael Abrahamsson
. I think it'd be fine as a compliment to RFC1918 space for some
internal networks.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
olely manages and allocates Internet address space, subnets of
network 44 (AMPRNet), to interested Amateur Radio operators."
Seems ARDC does more than this nowadays.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
imply that if GPS went
offline there woulnd't be consequences. Galileo is just a few years old,
and wasn't even in production. If GPS would go offline, you'd see a lot
different fallout. Lots of things rely on GPS solely.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
EBook/Cisco%AE%20ISP%20Essentials.pdf
--
Mikael Abrahamssonemail: swm...@swm.pp.se
ctionality in the HGW to work
around this problem.
In DHCPv6 the DUID is considered "world unique", but as wel all know who
work in operational environment, the world typically doesn't adhere to
strict rules.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
this is
functionality that needs at least some kind of specification.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
.
So the best case you can probably make is that there are things out there
that are IPv6 only, not just the kinds of services that most people would
care about (since if they would, someone would want it as widely available
as possible, this making it dual stack).
--
Mikael Abrahamssonemail
des that this device is performing
scans of larger IP spaces. This protects the mobile network from paging
storms but also allows users to be reachable from the Internet.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
to deliver an acceptable service to even 10 households.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
common practice.
If you go into the game of running your links full parts of the day then
you're into the game of trying to figure out QoE values which might mean
you spend more time doing that than the upgrade would cost.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
. 15 years ago I deployed ADSL
like this:
Residential---DSL modem---DSLAML3 switch
So DSL-modem---DSLAM was just doing RFC1843bridged over ATM. Just media
converters. Same thing, just different type of media converter.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
) with 10GE uplink to somewhere, and
it does SAVI and then there is some BNG somewhere at the other end of this
10GE uplink.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
up within
days to pull your new fiber and now you can have 150/50 for around 20EUR a
month.
The price level has remained the same the past 5-6 years, but speed has
gone up from 10/3 to 150/50 for the same monthly payment. Last year the
150/50 price level offering was 100/20 instead.
--
Mikael
do fiber as well, and that's that.
Simple product, can't go wrong in a lot of weird ways.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
"who owns this fiber?" they say "we do" and if you
ask "ok, I'd like it connected to someone else" they will say "huh? what
do you mean". There is an unfortunate common conflation between the fiber
optic cable and the services offered on it.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
(AE/GPON/DOCSIS) doesn't matter a huge part,
it's all about market and competition.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
contract
an ISP to deliver ETTH to all apartments (typically CAT6 from switch in
basement) where the going rate per apartment is around 5-15EUR a month for
something like 100/100, 1G/100M or 1G/1G.
All of this with *PON nowhere to be seen. It's all AE over fiber or
CAT5/6/7.
--
Mikael Abrahamsson
eden where PON is basically unheard of. We
have millions of AE connected households. I live in one of them.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
switch to PON fairly easily, but not the other way
around if you've put splitters in the manholes.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
On Fri, 11 Jan 2019, Ca By wrote:
Thanks for the update that dnssec STILL causes more real world problems
than it solves.
Do you feel the same way about RPKI?
--
Mikael Abrahamssonemail: swm...@swm.pp.se
bridged mode or terminate the IPoETHoATM PVC on the RG
itself.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
diversely and also
with redundancy, and can hitlessly take them out of service if needed.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
On Wed, 2 Jan 2019, Brandon Martin wrote:
On 12/14/18 11:51 AM, Mikael Abrahamsson wrote:
We use this to configure LW4o6 tunnels using DHCPv6. This is already
present in OpenWrt via the MAP package. It supports both MAP-E and LW4o6.
So I guess you're deploying "RG" style CPE route
an IPv6 network.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
/workshops/2017/ubuntunet-bgp-nrens/networking/nren/en/presentations/08-ISIS-vs-OSPF.pdf
https://www.nanog.org/meetings/nanog49/presentations/Sunday/Shamim_Which_Routing_N49.pdf
https://www.nada.kth.se/kurser/kth/2D1490/03/papers/Comparitive_Study_of_OSPF_and_ISIS.txt
--
Mikael Abrahamssonemail: swm
? If you don't, try that and see if
it helps. This might be a PMTUD issue.
Otherwise if possible, try lowering the MTU sent in RA to the one you have
on your tunnel (this depends on if this is available to you in your RA
sending device).
--
Mikael Abrahamssonemail: swm...@swm.pp.se
for it as
well.
Thoughts?
--
Mikael Abrahamssonemail: swm...@swm.pp.se
about making strong advise for protocols using
PLMTUD.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
, then no.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
services where the ICMP error is delivered to the wrong node.
So yes, there are plenty reasons that PMTUD doesn't work without anyone
doing it because of ill will or incompetence.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
when PMTUD
doesn't work.
With this in place (wait ~10 years), larger MTU is now incrementally
deployable which means it'll be deployable on the Internet, and IEEE might
actually accept to standardise > 1500 byte packets for ethernet.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
). This is currently NOT the
case, and from what I can tell, there isn't even an IETF document saying
this is the best current practice.
So, is this something we want to say? We should talk about that.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
parse extension
headers, they're routers, they only act on L3".
Some of the people around back in early/mid 1990ies involved in designing
IPv6 is still around in IETF, you can always ask them.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
address of class B space), but 172.16.1.0 worked just fine (because
in class B space, 172.16.1.0 isn't special).
So while this has been allowed per standardssince mid 90:ties, it's not
obvious that it'll work in all operating systems that might still be in
use.
--
Mikael Abrahamssonemail
--
Mikael Abrahamssonemail: swm...@swm.pp.se
"
I hope this happens.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
the home and the ISP.
All the work I saw took for granted there was for instance a DHCPv6-PD
lease handed to the home gateway router.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
VI.
What is the US government role in all of this? It sounds like a few
https://en.wikipedia.org/wiki/Lockheed_C-5_Galaxy could be of use here to
airlift in lots of gear.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
, in fixed networks with PPPoE the most commonly used model is dual
stack with RFC7084 style routers.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
video form, there are lots of presentations from
conferences, available on youtube as well.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
On Mon, 28 Aug 2017, Marcus Josephson wrote:
Damn you Google.. yup. Thanks for links.
A public post-mortem would be highly appreciated (from all parties).
--
Mikael Abrahamssonemail: swm...@swm.pp.se
if these very small buffers are shared between ports.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
. Otherwise
extreme care needs to be taken to make sure traffic isn't dropped because
uRPF does the wrong thing (like it seems in this case).
--
Mikael Abrahamssonemail: swm...@swm.pp.se
customers need. Not all customers will want all the services, so if a
customer doesn't want IPv6 then fine, turn it off for them. When they come
back later and want it, they know you have it.
You've done your part, and that's great!
--
Mikael Abrahamssonemail: swm...@swm.pp.se
-50C range.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
card actually has XFPs and I have LR optics in one here.
I don't see any reason it wouldn't support ER or ZR as well.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
On Fri, 7 Apr 2017, Max Tulyev wrote:
BTW, does somebody check how implementing a native IPv6 decrease actual
load of CGNAT?
Reports are that 30-50% of traffic will be IPv6 when you enable dual
stack. This would be traffic that will not traverse your CGNAT.
--
Mikael Abrahamssonemail
common the past few years, then the entire switch might have
buffer to keep packets for 0.1ms or less. So if someone says "flow control
off" for 0.1ms, depending on the implementation, you might then start
seeing packet drops on all ports until that device turns flow control
back on.
other ISPs that can offer a
better service for you?
Otherwise you might hack around it by running an IPSEC/UDP tunnel to
somewhere else where there isn't this kind of connection limit.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
control on all ports to make sure.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
-latency and highest priority,
meaning it might work well when the "Internet" bearer does not.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
of IS-IS. You're less likely to get random crap in your
IGP.
:P
--
Mikael Abrahamssonemail: swm...@swm.pp.se
On Sat, 22 Oct 2016, Alexander Maassen wrote:
Remember ping packets containing +++ATH0 ?
THat only worked because of patents:
https://en.wikipedia.org/wiki/Time_Independent_Escape_Sequence
Inband signaling is bad, mmmkay?
--
Mikael Abrahamssonemail: swm...@swm.pp.se
On Sat, 1 Oct 2016, Hugo Slabbert wrote:
So, kudos, Rogers Wireless!
http://labs.apnic.net/cgi-bin/ccpagev6?c=CA
Sort on "samples".
Seems Telus and Rogers are the only top10 with any double digit % IPv6
users. Telus is at 65-70%, that's a really good number.
--
Mikael A
to enthusiast customers who
are running their own CPEs to test if their ISPs are doing anti-spoofing
properly or not, and report this information to someone centrally.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
incur legal action on themselves by
doing antispoofing-testing.
https://www.ripe.net/participate/ripe/tf/anti-spoofing might be of
interest.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
On Tue, 27 Sep 2016, Zbyněk Pospíchal wrote:
Dne 27.09.16 v 15:17 Mikael Abrahamsson napsal(a):
Hm, so the IX operator looks at packets at the IX (sFlow perhaps), see
who is sending attack packets, and if they're spoofed, this ISP is then
put in "quarantine", ie their IX port is bas
ss to deny service to
paying customers... But if most agree that this should be done, it's
definitely a way to achieve compliance.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
their solutions. This is going
to cost them dearly, so they're going to be upset.
With all the IoT devices out there, do people even need to spoof anymore?
--
Mikael Abrahamssonemail: swm...@swm.pp.se
worldwide, partly because people aren't aware of its importance.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
and things ended up in
the newspapers that peoples files were available on the Internet because
they didn't set a password on their windows share or when versions of
Windows were pwned during installation of Windows because... Windows.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
specifications. So using your figures, if the device doesn't have 0 to -5
out, and can receive error free at -20, then it's out of spec and it
should be replaced free of charge.
However, if they market 1310nm with 15dB link budget at 60km reach, then
I'd consder that false marketing.
-
f a
sudden their transponders/muxponders might now understand the packets
you're running over OC192 and CRC check them and drop them without you
noticing.
They don't need to know, so don't tell them.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
?
--
Mikael Abrahamssonemail: swm...@swm.pp.se
multi vendor.
Any pointers to how to turn this of on Intel NICs and HP switches?
--
Mikael Abrahamssonemail: swm...@swm.pp.se
orrect.
If POSIX needs to be changed, then change it. By making leap second not a
rare event, this would hopefully mean it'll get taken more serously and
the code would receive wider testing than today.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
(or their employers have to pay) for not supporting IPv6 on their
enterprise solutions. Hopefully that'll drive IPv6 interest in the
enterprise space as well.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
, is make things like GRE work. Some are surprised
that there is actually non A+P protocols being used by customers. For
instance legacy PPTP uses this, so some business VPNs run into problem
with MAP or LW4o6.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
On Mon, 4 Jul 2016, Matt Hoppes wrote:
My point is there are more than enough IPv4 addresses. The issue is not
resources. It is hoarding and inappropriate use.
I tend to make the analogy of land use and/or houses/apartments. Yes,
there is that old lady down the street who lives in 300 square
On Mon, 20 Jun 2016, Mark Tinka wrote:
If you are deploying additional bandwidth just for protection, I hope
you're my competitor.
So if you have a fiber break, you're not going to have enough overcapacity
in your network to remain uncongested until this fiber break is fixed?
--
Mikael
On Mon, 20 Jun 2016, Thomas Mangin wrote:
Is this a specific service you purchased, or is this the way they
deliver x-connects?
It is how they provide x-connects.
That's not a x-connect, that's a transport capacity service.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
e
network together.
If your main business is transporting IP/MPLS then this is obvious that
you need to have the teams work closely together. If your main business is
to L2 switch or bit transport lots of TDM/L2 traffic, then it's less
obvious.
--
Mikael Abrahamssonemail: swm...@swm.pp.se
order circuits, just give us addresses for
each end and we'll take care of things, don't you worry your little IP
engineer brain how things are transported long distance".
I believe this is still the case at a lot of ISPs. Not all, hopefully not
even most, but I'm sure there are some.
-
1 - 100 of 604 matches
Mail list logo
