Am Mi., 16. Sept. 2020 um 02:57 Uhr schrieb Douglas Fischer
:
>
> Time-to-time, in some IXP in the world some issue on the forwarding plane
> occurs.
> When it occurs, this topic comes back.
>
> The failures are not big enough to drop the BGP sessions between IXP
> participants and route-servers.
Hi,
you can take a look at Lancom CPE devices. They support BGP, have an
internal mobile modem + external antenna connectors. I converted a few
external sites to such a connectivity model already (IPv4).
The FortiGate 30E-3G4G could also be worth looking into.
Best regards, Karsten
Am So., 12.
Hi,
something like https://www.opencompute.org/projects/rack-and-power
comes into my mind for that.
Mounting on 4 posts should be the default. It is insane what some
vendors want to mount on 2 posts only.
Regards, Karsten
Am Mo., 30. März 2020 um 19:46 Uhr schrieb Baldur Norddahl
:
>>
>>
>
> I h
I think you are referencing their chip scale atomic clocks. Which are very
frequency stable. But still need phase alignment. (Mobile UPS anyone?)
Maybe some peers can provide transparent or boundry clock support. Or
someone close by in the DC can add an antenna splitter.
Karsten
Mike Hammett sc
Can you check the actual FIB usage? With 2m IPv4 divided into v4 and v6 *
Fast ReRoute could hit the limit.
Baldur Norddahl schrieb am Mi., 15. Mai 2019,
20:24:
> Hello
>
> On Wed, May 15, 2019 at 3:56 PM Mike Hammett wrote:
>
>> What is the most common platform people are using with such limit
Hi,
did you find
https://labs.ripe.net/Members/emileaben/768k-day-will-it-happen-did-it-happen
? It has further links at the end as well.
If you hit the 768k issue for IPv4 you might look at IPv6 as well as
there might be a 64k limit on some tcam profiles. If there is no IPv6
in use (very sad fac
An other tool worth looking into is Traffic Sentinel from inMon.
Karsten
Am Mo., 31. Dez. 2018 um 04:31 Uhr schrieb Erik Sundberg
:
>
> Hi Nanog….
>
>
>
> We are looking at replacing our Netflow collector. I am wonder what other
> service providers are using to collect netflow data off their Cor
Some points I have not seen so far are:
- how do you connect? local cc in the dc or several other fiber runs
to reach a different dc/city? (affects price, setup time, maintenance
and debugging)
- where is your traffic going to/from? how many intermediate ASs or
long transfers are involved?
- bgp co
Hi,
you could let them insert a custom string into the maintenance page.
(I hope they are not writing it on demand) So the monitoring would be
ok on status code 200-399 or custom string found.
You could also use a different escalation chain when "maintenance" is
found on an 503 error. Other than t
Hi,
as you want to connect your laptop I would recommend something like a
usb3 hub with ethernet.
https://www.amazon.com/Anker-Aluminum-Portable-Gigabit-Ethernet/dp/B00PC07T02/
There are also displays with usb3 type-c connector that have an ethernet port.
Karsten
2018-05-14 19:45 GMT+02:00 Col
Hi,
sounds like you are hosting the origin for the CDN which causes issues.
Does the CDN care where it is pulling the data from?
Could you place a cheaper origin somewhere else? Like AWS, Italy,
Katar or Amsterdam? For 150k/month you can get a lot of
bandwidth/storage/rack space somewhere else.
An
Hi,
most 10GE cards have either direct 10GBASE-T port(s)s or SFP+ slot(s).
The SFP+ transceiver you plug in determines the range. (SMF/MMF,
wavelength, link budget)
Reading the optical parameters is a bit tricky on most NICs.
Karsten
2017-06-15 11:10 GMT+02:00 chiel :
> Hello,
>
> We are deploy
You could use multiple PAT addresses to find the source of information
for the attacker and to reduce the impact by filtering/QOS.
TCP connections PAT IP1 (block UDP before going to the 1G line)
UDP connections PAT IP2
webservers connecting to api hosts - PAT IP3
webservers remaining connections
Hi,
depends on the type of ISP you are and the bandwidth used in the attack.
If most attacks are targeted for www.example.com then you could design
your net so that www.example.com is just a TCP service VIP that never
needs any UDP. This would make it possible to place simple ACL on your
edge to
Hi,
we use stuff from https://www.flexoptix.net/en/
The programmer they/we use is the "flexbox".
Karsten
2015-03-22 16:35 GMT+01:00 Mike Hammett :
> Where are you guys picking up your SFP programmers?
>
> Also, is there a listing anywhere of the vendor codes needed?
>
>
>
>
> -
> Mike Hamme
Hi,
I would not recommend to run any nat over protocol versions for
clients as you would need to break DNSsec.
The clients creating connections should run dual-stack or dual-stack lite.
The only useful thing for service providers would be to proxy/nat lets
say an incoming IPv6 connection to still
Hi,
2015-01-30 0:28 GMT+01:00 Eric Louie :
> I'm putting together my first IPv6 allocation plan. The general layout:
> /48 for customers universally and uniformly
> /38 for larger regions on an even (/37) boundary
> /39 for smaller regions on an even (/38) boundary
> A few /48's for "internal use
Hi,
Java had some issues with 100% CPU usage when NTP was running during
the additional second in 2012.
http://blog.wpkg.org/2012/07/01/java-leap-second-bug-30-june-1-july-2012-fix/
Google did something different to get the extra second in:
http://googleblog.blogspot.de/2011/09/time-technology-an
Hi,
the devices are good.
Just read up about gen 1, gen1.1 and gen 2 modules in regard to
backplane mode. Afaik Gen1 Modules are discontinued now so all modules
should work in turbo mode.
I don't know which cam profile is the current default so that needs
repartitioning and default values adjusted
Hi,
I'm looking for an OTDR.
- single and multi mode fibers
- good resolution as the the primary area of operation would be in the
data center
- a low learning curve and simple user interface
What OTDRs / manufactures can you recommend?
Thanks
Karsten
Hi,
did you have a look at https://atlas.ripe.net/ ?
They have two types of probes that are already in place.
Best regards
Karsten
2014-10-29 21:05 GMT+01:00 Eric Germann :
>
>
> Greetings,
>
> I'm looking for recommendations on a reliable VPS Provider(s) who can
> provide
>
> 1. Centos 6
> 2.
2014-10-09 16:22 GMT+02:00 Daniel Corbe :
> Has anyone successfully gotten a RIR to assign anything bigger than a
> /32? I seem to recall in recent history someone tried to obtain a /31
> through ARIN and got smacked down.
>
> Even if you're assigning a /56 to every end user, that's still on the
>
am not sure why those 702 and 19294 old entries would still be
> there.
>
> We have engaged 812 for help.
>
> Shall I assume cleaning up the old entries will solve the problems?
>
>
>
> -----Original Message-
> From: Karsten Elfenbein [mailto:karsten.elfenb...@gmail
the prefix should come up over
the next day(s)
Also get the more specific route objects removed which point to other AS.
192.250.24.0/23 AS702
192.250.24.0/24 AS19294
Karsten
2014-09-18 23:46 GMT+02:00 Karsten Elfenbein :
> Hi,
>
> looks like you mainly use one transit provider (AS812)
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