On Tue, 23 Jun 2020 at 09:54, William Herrin wrote:
> There's a link in the chain you haven't explained. The packet which
> entered at S3 has a unicast destination MAC address. That's what was
> in the arp table. If they're following the standards, only one of PE1
> and PE2 will accept packets wi
Am Montag, 22. Juni 2020, 23:53:44 schrieb William Herrin:
> On Mon, Jun 22, 2020 at 10:21 PM Saku Ytti wrote:
> > On Tue, 23 Jun 2020 at 08:12, William Herrin wrote:
> > > That's what spanning tree and its compatriots are for. Otherwise,
> > > ordinary broadcast traffic (like those arp packets)
b...@herrin.us said:
> NTP you say? How does iburst work during initial sync up?
How does it work, or how should it work? 1/2 :)
NTP has been around for a long time. It looks very simple, so anybody thinks
they can toss off an implementation without much thought. It will probably
work, mo
> Stephen Satchell via NANOG
> Sent: Monday, June 22, 2020 8:37 PM
>
> On 6/22/20 12:59 AM, adamv0...@netconsultings.com wrote:
> >> William Herrin
> >>
> >> Howdy,
> >>
> >> Why is latency between the east and west coasts so bad? Speed of
> >> light accounts for about 15ms each direction for a 30
Many of the traders have set up their short wave radio transmitters for use
across the Atlantic. Bandwidth is only 4 kliobits, but that is enough to send a
message saying "buy the SPY Option contracts". It is quite a bit faster than
fiber.
Regards,
Roderick.
F
On Mon, Jun 22, 2020 at 5:30 PM Hal Murray
wrote:
>
>
> How often do packets magically get duplicated within the network so that the
> target receives 2 copies? That seems like something somebody at NANOG might
> have studied and given a talk on.
>
> Any suggestions for other places to look?
bu
Mark Tinka wrote:
But, it should be noted that a single class B...
CIDR - let's not teach the kids old news :-).
Saying /16 is ambiguous depends on IP version.
And, if I understand BGP-MP correctly, all the routing information of
all the customers is flooded by BGP-MP in the ISP.
Yes, be
Mark Tinka wrote:
Personally, the level of intelligence we have in routers now beyond
being just Layer 1, 2, 3 - and maybe 4 - crunching machines is just as
far as I'm willing to go.
Once upon a time in Japan, NTT proudly announced to have
developed and actually deployed telephone exchangers t
Masataka Ohta wrote:
The point of Yakov on day one was that, flow driven approach of
Ipsilon does not scale and is unacceptable.
Though I agree with Yakov here, we must also eliminate all the
flow driven approaches by MPLS or whatever.
I still don't see them in practice, even though they may
adamv0...@netconsultings.com wrote:
The key takeaway however is that no single entity in SP network, be it PE,
or RR, or ASBR, ever needs everything, you can always slice and dice
indefinitely.
So to sum it up you simply can not run into any scaling ceiling with MP-BGP
architecture.
Floodi
>
> > So to sum it up you simply can not run into any scaling ceiling with
> MP-BGP
> > architecture.
>
> Flooding nature of BGP requires all the related entities treat
> everything, regardless of whether they need it entirely or not.
That is long gone I am afraid ... Hint RFC 4684. Now applicabl
On Mon, Jun 22, 2020 at 7:18 PM Randy Bush wrote:
> how did that work out for the ptts? :)
>
Though its release slipped by three years, by 1995 ATM had started to
replace IP as the protocol of choice. By 1999, IP was used only by a small
number of academic networks.
Nah, I don't think there is
We are looking for an engineering firm with significant experience in FTTX
in the power space. Extra points if you have worked with Co-ops.
--
Fletcher Kittredge
GWI
207-602-1134
www.gwi.net
> On Jun 23, 2020, at 4:16 AM, Masataka Ohta
> wrote:
>
> Mark Tinka wrote:
>
>>> But, it should be noted that a single class B...
>> CIDR - let's not teach the kids old news :-).
>
> Saying /16 is ambiguous depends on IP version.
Not really… A /16 in IPv6 is a lot more addresses, but it’s
FCC Public Safety and Homeland Security Bureau Seeks Comment on Effects of
June 15, 2020 T-Mobile Outage on Public Safety Entities, Government
Entities, and Consumers
https://www.fcc.gov/document/fcc-seeks-comment-effects-june-15-t-mobile-outage
From T-Mobile's statement:
https://www.t-m
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