r Huawei as DWDM engineer and had to fly frequently with testing
devices.
One time he tried to explain at airport security control what DWDM
spectrum analyser is for, the officer called another for help and he
said something like this: "DWDM spectrum analyser? Pass it, usual
thing..."
--
Kind regards,
Andrey Kostin
Hi Mankamana,
For Juniper:
Starting in Junos OS 18.4R1, devices with IGMP snooping enabled use
selective multicast forwarding in a centrally routed EVPN-VXLAN network
to replicate and forward multicast traffic. As before, IGMP snooping
allows the leaf device to send multicast traffic only to
slowed due to this
action by CloudFlare?
—
Chris Cummings
FROM: NANOG on behalf of Tom Beecher
DATE: Monday, April 20, 2020 at 10:35
TO: Andrey Kostin
CC: Nanog
SUBJECT: Re: "Is BGP safe yet?" test
( Speaking 100% for myself. )
I think it was tremendously irresponsible, espe
Mark Tinka писал 2020-04-20 12:57:
On 20/Apr/20 18:50, Tom Beecher wrote:
I (and Ben, and a few others) are all too familiar with the ARIN
madness
around their TAL.
Simple - we just don't accept it, which means our networks will be
unsafe against North American resources. Highly doubtful my
Denys Fedoryshchenko писал 2020-04-20 15:27:
And most important, the most common answer:
All Tier-1 implemented it? No.
Major hosting operators, such as AWS, gcloud, etc? - No.
So...
Absolutely, RPKI has different scale of effectiveness and benefits for
big telecoms or clouds vs small ISPs o
Baldur Norddahl писал 2020-04-21 02:49:
My company is in Europe. Lets say an attacker joins the IX in Seattle
a long way from here and a place we definitely are not present at. We
do however use Hurricane Electric as transit and they are peering
freely at Seattle. Everyone there thus sees our pr
Jay R. Ashworth писал 2020-04-22 11:02:
Well, given how little the BCP38 website below has moved that football,
you're
not likely in much danger... :-)
Cheers,
-- jra
BCP38 website doesn't proclaim anybody in person to be unsafe, but if it
would be possible to make such test it'd be more
Christopher Morrow писал 2020-04-22 14:05:
a question about the data types here...
So, a neighbor with no downstream ASN could be filtered directly with
ROA == prefixlist-content.
A neighbor with a downstream ASN has to be ROA (per asn downstream) ==
prefixlist-content.
So you'd now have to do
Vincent Bernat писал 2020-04-22 15:26:
❦ 22 avril 2020 12:51 -04, Andrey Kostin:
BTW, has anybody yet thought/looked into extending RPKI-RTR protocol
for validation of prefixes received from peer-as to make ingress
filtering more dynamic and move away prefix filters from the routers?
It
Maybe there is a market opportunity there? Develop reporting standard
(or use one that was posted here), then develop reporting, processing
and analytic tools, and then provide it as a service? Looks like a nice
use case how to utilise clouds ;)
Kind regards,
Andrey
Mike Hammett писал 2020-04
Saku Ytti писал 2020-06-12 12:10:
On Fri, 12 Jun 2020 at 18:52, David Sinn wrote:
Unless you want ECMP then it VERY much matters. But I guess since we
are only talking about theoretical instead of building an actual
practical network, it doesn't matter.
Well blatantly we are, because in the
aar...@gvtc.com писал 2020-09-15 20:31:
Hi Aaron,
Also, with VPN's over SRv6
would this enable automatic vpn capability over the internet? I mean
if I can do VPN's over an IPv6 network, seems that I could do that
across the Internet as well.
I think you already can do it over any kind of tunn
Seeing this prefix with exactly same path coming from Zayo.
My path is 6461 3356 3549 11172 270150 I
Kind regards,
Andrey
Drew Weaver писал(а) 2022-03-30 09:29:
Hello,
We've noticed that there are a number of routes being passed along
from 3356 with invalid origin AS.
Of those, almost all of
It's hard to believe that a same time maintenance affecting so many
devices in the core network could be approved. Core networks are build
with redundancy, so that failures can't completely destroy the whole
network. If it would be just "particular devices" they could be isolated
much faster. I
nt to happen on such big scale. Maybe caused by
HW or SW bug.
I'm talking just about probabilities of different scenarios and trying
to compare them. So far, IMO provided version doesn't look very
convincing.
Kind regards,
Andrey Kostin
sro...@ronan-online.com писал(а) 2022-07-11 20:18:
Matthew Petach писал(а) 2022-10-11 20:33:
My point is that it's not a feature of BGP, it's a purely human
convention,
arrived at through the intersection of pain and laziness.
There's nothing inherently "right" or "wrong" about where the line was
drawn, so for networks to decide that /24 is cau
David Conrad писал(а) 2022-10-12 11:39:
Andrey,
There was a period in the mid- to late-90s where some of RIRs
allocated longer than /24s, i.e., to match the amount of address space
justified by the requester, even if that meant (say) a /29. This
didn’t last very long as one of the (at the time)
Aaron Gould писал(а) 2023-08-23 12:38:
some of these port capabilities are weird to me. like on the
ACX7100-48L you can do 4x100 or 8x50, but ONLY one 40g ?!
me@7100> show chassis pic pic-slot 0 fpc-slot 0 | find 400
48 0 1x400G 1x100G 1x40G 4x100G 2x100G 8x50G 2x50G 4x25G
4x10G 3x1
Hi NANOG,
Looking for a contact from AS3320 Deutsche Telekom to ask a question
about their routing policy/filtering causing that some globally routed
prefixes aren't seen in AS3320.
Kind regards,
Andrey Kostin
Mark Tinka писал 2020-01-03 04:36:
And more interestingly, if that city's residents and visitors had the
option of connecting to active 5G or wi-fi, what do we think they'd
choose?
Currently /me don't bother switching to wifi in public places bcz LTE
provides enough bw for my humble needs.
Sabri Berisha писал 2020-01-03 16:53:
I predict that there will be a time where, just like POTS lines were
exchanged for cellular phones, people will disconnect their cable
internet
and rely on 6g or 7g alone. And probably still with IPv4 addresses.
Could be true very soon. When supporting
John D'Ambrosia писал 2020-01-05 07:48:
Sabri
At the very end you note 100base-t as a precursor to 400g. 100baset
really found its success as an access solution - computer connections.
400GbE will be an aggregation / core solution. It will be some time
if ever where 400GbE is used as an access
Mark Tinka писал 2020-01-04 00:43:
On 4/Jan/20 00:26, Andrey Kostin wrote:
Could be true very soon. When supporting cable infrastructure will
become too expensive they will cut it in lieu of mobile, like many
railways were decomissioned earlier. Must be a local tipping point in
each area but
Sabri Berisha писал 2020-01-06 16:21:
- On Jan 5, 2020, at 10:07 PM, Mark Tinka mark.ti...@seacom.mu
wrote:
I predict that
your in-flight wifi will become a lot cheaper as a result of this.
Thanks,
Sabri
On Lufthansa flights unlimited Internet access is 12 Euro, and 3 Euro is
for "ch
Paul Nash писал 2020-01-06 18:45:
Depending on what you are after, folk like Ruckus and Cisco have had
centrally-managed enterprise WiFi for many years. I manage a Ruckus
installation for an apartment building where there is one SSID from
about 150 APs, users have a unique password per apartmen
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