Aaron A. Glenn Profile Banner
Aaron A. Glenn Profile
Aaron A. Glenn

@networkservice

4,487
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2,840
Following
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"packet processing & packet processing accessories" my tweets are mine alone human rights over property rights. see also discuss . systems at this username

AS7007
Joined April 2009
Don't wanna be here? Send us removal request.
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@networkservice
Aaron A. Glenn
1 year
@jacyanthis @thehill wrong wrong wrong no python script no memory pointer no GPU kernel needs any rights refugees need rights trans persons need rights political prisoners need rights human rights over math
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@networkservice
Aaron A. Glenn
11 months
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@networkservice
Aaron A. Glenn
6 years
Hi, I'm the network "engineer". You may know me from ticket replies such as "it's DNS", "that is not our network", and "the packet loss is only showing on intermediate hops in the traceroute provided because ICMP hits the control plane, unlike your application traffic"
@JanelleCShane
Janelle Shane
6 years
Hi, I'm a creative AI user. You may know me from my greatest hits "No, it's not self-aware," "Actually, I'm the creative one, not the algorithm," "Stop generating birds with no feet and two heads," and "Okay yes technically I DID ask for that but that's not what I meant"
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@networkservice
Aaron A. Glenn
2 years
it’s here!!!
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@networkservice
Aaron A. Glenn
3 years
Finally, BGP is relevant at parties
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@networkservice
Aaron A. Glenn
6 months
@softminus wait are we really doing death panels for capitalism? with this much patriarchy racism and ableism? we’re all cooked, actually
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@networkservice
Aaron A. Glenn
3 years
them: "it's just ethernet and IP how hard can it be?" packet parsers:
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@networkservice
Aaron A. Glenn
5 years
@Hiny_Rugburn @mooncult @stillgray laser pointers and direct action: two great tastes that taste great together
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@networkservice
Aaron A. Glenn
9 months
@OrlanczykTal @YasmineJibril tape some more “MEDICAL SUPPLIES” laser printer sheets to empty boxes for your imperial IDF service, genocidaire.
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@networkservice
Aaron A. Glenn
11 months
@Anthonyjdjd @jkoudys @Don_El_Wood @TimKietzmann I beg you to read a little on how the GPT models are made and what they are made of. 🙏 please it is imperative you understand. I am not joking.
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@networkservice
Aaron A. Glenn
1 year
got some pieces of the Azure cloud 😎
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@networkservice
Aaron A. Glenn
9 months
gonna build a hardware BGP accelerator and none of you are going to stop me
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@networkservice
Aaron A. Glenn
7 years
Welp, I'm eating directly across from Poettering. The grimace when I said I was a BSD user will be something I treasure forever.
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@networkservice
Aaron A. Glenn
5 years
The audio jack has disappeared from the iPhone but recently rediscovered on the *checks notes* console port for SmartNICs? 🤔
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@networkservice
Aaron A. Glenn
1 year
@gf_256 best crapitalism hack yet
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@networkservice
Aaron A. Glenn
9 months
@iamchukaelc @AlexThomp is that why all my ads are for bibles and nft airdrops? 🤣🤣🤣🤡
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@networkservice
Aaron A. Glenn
2 years
don’t let your dreams be memes
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@networkservice
Aaron A. Glenn
2 years
in my 20s: “telecom engineer” in my 30s: “everything after your wifi router” in my upcoming 40s: “I’m really into caring for bunnies and also becoming a honey sommelier in Italy”
@kaonthana
Kaon Thana
2 years
When people ask me what I do: In my 20s: "As a senior network engineer, I build complex networks and systems to connect globally distributed workloads" In my 30s: "I'm in IT"
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@networkservice
Aaron A. Glenn
7 months
no food in the datacenter? sir I’m rackmounting this crunchwrap supreme and the bean burrito is clearly a hot spare
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@networkservice
Aaron A. Glenn
2 years
them: "why is the network is slow?" me, grabbing binders from the shelf behind my desk with a deep sigh:
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@networkservice
Aaron A. Glenn
4 years
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@networkservice
Aaron A. Glenn
5 years
if you want to build networks in the real world, skip the CCIE and get a degree in psychology. I wish I were joking
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@networkservice
Aaron A. Glenn
4 years
Well, it finally happened: I'm being paid expressly (by direct customer request!) to generate an IPv6 addressing plan for production deployment this year. 2020 is truly wild
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@networkservice
Aaron A. Glenn
3 years
@iangcarroll @QuinnyPig bandwidth is the soda fountain of profit margins in the cloud
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@networkservice
Aaron A. Glenn
5 months
@mycoliza is this how they talk in the Chrome developer restrooms
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@networkservice
Aaron A. Glenn
1 year
every decomm ever in my whole live jfc
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@networkservice
Aaron A. Glenn
11 months
@Anthonyjdjd @jkoudys @Don_El_Wood @TimKietzmann cool. it’s still not thinking. it’s an almost unappreciatively large amount of multiplication that gives probabilities. you might enjoy the cadre of folks breaking the model in fun ways. like mentioning that reddit user than “won” the counting subreddit
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@networkservice
Aaron A. Glenn
10 months
a dear friend of mine just said in all seriousness “2.1MB seems like it should be transferred in like…one packet” I have failed 🥲
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@networkservice
Aaron A. Glenn
2 years
on-prem is dying but The Edge is getting closer and closer to the end user located…on…premises?
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@networkservice
Aaron A. Glenn
9 months
you absolutely do not need or want “AI” for this. you can validate and even verify ACLs using deterministic math not spicy autocomplete. 💯 snakeoil. pls fight me!
@Dinosn
Nicolas Krassas
9 months
Cisco intros AI to find firewall flaws, warns this sort of thing can't be free
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@networkservice
Aaron A. Glenn
5 years
where the BGP haters @ ??? 😂
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@networkservice
Aaron A. Glenn
1 year
🫡
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@networkservice
Aaron A. Glenn
5 years
"this blog series on linux networking internals is absolutely wonderful. I wonder where they work?" - me, numerous times in my life cloudflare. it's always cloudflare. ya'll should let your people blog like cloudflare people have been (and get to) blogging
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@networkservice
Aaron A. Glenn
4 years
@atom_attic @JackJackington @shaneferro they understandably could not conceive a branch being co-opted so thoroughly. only so many fail safes you can build in. at some point, it's up to the governed...
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@networkservice
Aaron A. Glenn
5 years
network friends please tell software engineering friends that crawling the entire route table, especially on a router that carries "the full internet" is a very expensive proposition when done via...SNMP cc: "horror stories from neteng" @mwlauthor
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@networkservice
Aaron A. Glenn
5 years
There are no Dell or QFX or Arista switches. Just Broadcom chips in different clothing
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@networkservice
Aaron A. Glenn
2 years
isovalent and tailscale are definitely building what networks are gonna look like for the next decade
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@networkservice
Aaron A. Glenn
2 years
I’m sorry a GPU accelerated what? terminal emulator?? is this a joke on old people like me??? is anyone stopping to like, think about this?????? what the hell does a GPU accelerate on a mf teletype emulator help meeee
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@networkservice
Aaron A. Glenn
4 years
"Intel intends to open Tofino in the long term. As it is the case with general purpose CPUs, we believe that people should be able to learn about the architecture and interfaces, teach about them and write the code openly. This announcement is just the first step. Stay tuned!"
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@networkservice
Aaron A. Glenn
5 years
@codinghorror @dhh @AppleCard Dang, dude. Delete this. Maybe your account, too. Just to be safe.
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@networkservice
Aaron A. Glenn
4 years
Most network troubleshooting I've been invited to watch:
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@networkservice
Aaron A. Glenn
2 years
I really don't know what everyone is on about Hollywood prop designers have solved the IPv4 number depletion like, decades ago at this point. if IPv6 was truly superior (looked cooler) then, obviously, that's what Hollywood would have went with. but they didn't. they fixed IPv4
@manekinekko
Wassim Chegham
2 years
Saw this on a show on Netflix. I'm dying inside 😭
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@networkservice
Aaron A. Glenn
9 months
@TheBrianMcManus @nyanotech if engineers could sell, they would be. believe me. you know how many beautiful shits us engineers can design that only we can appreciate *without* sales? ‘bout all of it, really. it bites but it is reality
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@networkservice
Aaron A. Glenn
6 months
@dasNeves_vfx @IndiYotha @Artedeingenio @MarioVivs I would be fascinated if it wasn’t so fucking alarming
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@networkservice
Aaron A. Glenn
2 years
@dysinger @QuuxBerlin it’s literally everywhere 😭 it’s a code smell for me now: “why don’t you support ed25519 keys????”
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@networkservice
Aaron A. Glenn
2 years
“Rust achieves 98% of C’s throughput at the same worst-case latency of 22 μs (median 5μs) while at the same time guaranteeing memory safety in 87% of the source code. The other languages fare worse and should not be the first choice for building a packet processing system”
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@networkservice
Aaron A. Glenn
11 months
did…did I just get a book retired from the Xerox PARC library?!?!?!?!?!?! 😳
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@networkservice
Aaron A. Glenn
4 years
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@networkservice
Aaron A. Glenn
5 months
“you extended the management VLAN *how* far?!”
@MarvellTech
Marvell Technology
5 months
Marvell is demonstrating OFC this week the industry’s first 800 Gbps ZR/ZR+ pluggable module with probabilistic constellation shaping (PCS). With PCS enabled, the reach of a Marvell COLORZ 800 module at full bandwidth doubles from 500km to 1000km.
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@networkservice
Aaron A. Glenn
7 years
@fedupmel @icedhazelnut_ @SethAbramson The other half of *white* america think he's a bona fide billionaire who respects "America" (whatever that means to them)
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@networkservice
Aaron A. Glenn
1 year
lab gear slowly but surely materializing
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@networkservice
Aaron A. Glenn
3 years
One FPGA doing packet manipulation is one FPGA not boiling the earth for hashes with leading zeros.
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@networkservice
Aaron A. Glenn
2 years
put the glass in the ground you fucking assholes fuck fuck fuck
@rdrimmel
Ronald Drimmel 🇺🇦
2 years
Expected capacity of Starship is about 150 tonne, so that means about 120 Gen2 Starlinks per launch. That means to deploy 30k sats you need 250 Starship launches. Expected on-orbit lifetime is same as Gen1: 5 to 7yrs.
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@networkservice
Aaron A. Glenn
2 years
me when someone innocently asks how the internet works
@KWF
2 years
Someone asked me what was behind all the doors in locomotives. So I started opening all the doors and explaining it to them until they asked me to stop.
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@networkservice
Aaron A. Glenn
6 years
@gewalker @JeremiahLee @ProgrssvWitness You think it's going to start and stop here, with life insurance? That's just naive, friend.
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@networkservice
Aaron A. Glenn
3 years
read that until you get it
@impl_u64
ammar
3 years
NAT👏is👏not👏a👏firewall
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@networkservice
Aaron A. Glenn
2 years
my partner, who just finished her manuscript for OReilly on data privacy, sent a GDPR to the ChatGPT folks and this… …this could be the beginning of something beautiful 🙌🤓🥹
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@networkservice
Aaron A. Glenn
5 years
"it's says here 2RU but has less than 24 ports. I don't understand?" "heatsink" "...what?" "heatsink"
@nicoduck
nico
5 years
Uuuuh nice 👌 3xSFP+ and 8xSFP/RJ45 combo ports. Dual AC, fan-less, extended temperature range. One nice piece of hardware and solid metal 😍
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@networkservice
Aaron A. Glenn
2 years
I HAVE A TOFINO I HAVE A TOOFIIIINNNNOOOO I HAVE A ...3.2Tb/s dual pipeline Tofino! woo
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@networkservice
Aaron A. Glenn
2 years
my anger is only unreasonable to those who don’t understand how simple laying fiber can be
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@networkservice
Aaron A. Glenn
3 years
I'm sending all my emails from a hotel lobby payphone while in a smoking jacket from now on.
@ddoniolvalcroze
Diane Doniol-Valcroze
3 years
Smoking gentleman using an acoustic coupler to send an email with a payphone. Early 1980s
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@networkservice
Aaron A. Glenn
2 years
just want to reiterate all but about a handful of the “best” “network engineers” I know I have all progressed to something else entirely
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@networkservice
Aaron A. Glenn
3 years
Next time you are having a bad day, remember someone lost the tail end of a submarine cable
@philBE2
philBE
3 years
@jlvuillemin @ASN_Comm @orange @OrangeMarine_ @GMSL_Ships 31MAY21 - Amitié Atlantic cable 🇺🇸🇬🇧🇫🇷 campaign…Take 🎬2⃣ ⚠️ WANTED❗️ Submarine cable tail-end, last known position off 🇫🇷Le Porge coastal area, as buoyed off by 🚢CS Ile de Batz 10FEB21 Handsome 💰 finder's fee 😉 @ASN_comm @Orange @OrangeMarine_ @GMSL_ships #StewartMarine
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Aaron A. Glenn
3 years
@justiz_N @WholesomeMeme farts are universally funny. they transcend language and culture. people who don't find farts funny find farts unfunny not because farts are not funny; but for a whole bunch of other reasons unrelated to flatulence itself.
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@networkservice
Aaron A. Glenn
2 years
we have this for IP addresses please please please use it. please. PLEASE
@b0rk
🔎Julia Evans🔍
2 years
i really love that is a real domain and its only purpose is to be used in examples
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Aaron A. Glenn
1 year
"we" may have had to learn containers but "they" have to learn BGP now 🤣
@utam0k
Toru Komatsu
1 year
Using Cilium( @ciliumproject )🐝, I was able to generate a load balancer based on BGP without the need for MetalLB and kube-proxy.
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Aaron A. Glenn
5 years
Friends don't let friends buy and provision 1GE peering ports. Seriously. Don't do it. if the MRC on a 10GE port is too high, you don't need to be peering there at all.
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@networkservice
Aaron A. Glenn
7 months
bgp is a message bus and not as difficult, conceptually, as many tutorials make it out to be
@danieldibswe
Daniel Dib
7 months
Don’t sleep on BGP. It used to be in SP networks mainly. Then it spread to datacenters. Now it’s starting to gain traction in the campus as well. It’s also used in public cloud. Ethernet and TCP/IP first, but don’t wait with BGP until you are at expert level.
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@networkservice
Aaron A. Glenn
6 years
"Beyond 100GbE, all packet sizes will arrive faster than main memory can accommodate, resulting packet drops due to the latency incurred by the memory hierarchy. We call these losses caused by the gap between cache and DRAM, Dark Packets" cc @__dotblake
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@networkservice
Aaron A. Glenn
5 years
in a lovely, unintentional turn of events I'm creating the demand I have long wanted to see: I'm hiring (contract) P4 developers. specifically with experience / understanding of eBPF & XDP as a target. remote only. students/academic/researchers preferred!
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@networkservice
Aaron A. Glenn
2 years
feeling feisty today any melon huskers wanna argue with me about five year phallic space junk vs 25 year or more, orders on orders of magnitude more bandwidth (literally), glass in the ground?
@networkservice
Aaron A. Glenn
2 years
put the glass in the ground you fucking assholes fuck fuck fuck
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@networkservice
Aaron A. Glenn
8 months
reverse engineering the firmware of the Broadcom BCM5719 Ethernet NIC chip
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@networkservice
Aaron A. Glenn
2 years
oh wow this is way simpler than when I was doing it 12 years ago
@MachinePix
MachinePix
2 years
Joining fiber optics with a Fujikura 90R mass fusion splicer.
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@networkservice
Aaron A. Glenn
2 years
ATT: “it’s expensive to run fiber in America because we have standards” the standards:
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@networkservice
Aaron A. Glenn
4 months
this oughtta put those 6509s out for good
@danieldibswe
Daniel Dib
4 months
We're getting pretty close to 1M prefixes! Data from Geoff Huston:
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Aaron A. Glenn
7 months
programmers who can network and networkers who can code, the recruiters pipe dream:
@lucaderi
Luca Deri
7 months
The #FOSDEM network devroom just started
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@networkservice
Aaron A. Glenn
9 months
last time I saw all the IX operators talk about a traffic surge in unison like this was the day MJ died. does fortnite literally yolo the client upgrades? everything all at once everywhere? 😳
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@networkservice
Aaron A. Glenn
1 year
I've been nerd sniped by @tracketpacer to make the worlds first? 6.4Tbps 64x100GE hub.
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@networkservice
Aaron A. Glenn
5 years
Are you an underrepresented person starting out in infosec and have networking questions you want to pester someone with? Pester me.
@SwiftOnSecurity
SwiftOnSecurity
5 years
@Viss @moonsyi @da_667 @0xAmit @HackingDave @hacks4pancakes @0xdade @worldwise001 Reminder, I interviewed for a senior security position in New York that they flew me out to, apparently other applicants couldn’t describe a TCP handshake and thought ICMP was UDP. The bar is real low on networking stuff in security. Even basic knowledge makes you stand out.
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Aaron A. Glenn
1 year
@SwiftOnSecurity is this about securing holes?
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@networkservice
Aaron A. Glenn
5 years
triply so for IP addresses in examples and documentation. stop using 3.3.3.3 and 4.4.4.4. frankly, despite how good your content might be -- I silently judge you. negatively. RFC3849 & RFC5737 read 'em. use 'em.
@mirceaulinic
Mircea Ulinic
5 years
Another pedantic reminder that you should use instead of (or anything that you think it's dummy) in your examples. is standardized for this purpose, is proprietary. #RFC2606
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Aaron A. Glenn
1 year
we’re gonna decomm this lovely specimen tomorrow, and put a couple Tofino chassis in its place!!
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@networkservice
Aaron A. Glenn
5 years
framing this as a @cloudflare outage is so, so very wrong. this is a disruption of service ultimately caused by @Verizon completely ignoring even the most basic of best current practices (like setting a sane max-prefix on customer facing BGP sessions).
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@networkservice
Aaron A. Glenn
2 years
@realwshunter @cadlymack you are the reason you are a comedy writer with fourteen twitter followers, not any one else.
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@networkservice
Aaron A. Glenn
2 years
meeting on a six figure /fun/ open source routing project. please wish me luck as this place slowly degrades into dust
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@networkservice
Aaron A. Glenn
3 years
I think I finally got my (second) paid P4-specific engagement 🥰😭🥰😭🥰
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@networkservice
Aaron A. Glenn
2 years
Personally I’m building Web 3.11 for workgroups and I’m hoping some friends have great Web 95 ideas. We’re gonna skip Web ME tho
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@networkservice
Aaron A. Glenn
2 years
back in my day there was absolutely no way to lose 1.5TB of storage. misplacing an M.2 form factor drive is simply too easy. I declare this a design flaw
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@networkservice
Aaron A. Glenn
2 years
folks it’s time for new stock photos those line cards are museum pieces
@Light_Reading
Light Reading
2 years
GTT adds PoP, new logo and exits Chapter 11 cases. The managed service provider is launching a new point of presence in Portland and has emerged from nearly $3 billion in debt plus Chapter 11 cases. Read more on Light Reading:
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@networkservice
Aaron A. Glenn
4 years
This is the mental image I have when I read "vxlan over ipsec" h/t: @avifreedman
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@networkservice
Aaron A. Glenn
1 year
either follow along for the "aaron builds a terabit hub with left over gear" or cyberbully me into never recording again. I can live with either but not indifference okay
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@networkservice
Aaron A. Glenn
9 months
@OrlanczykTal @YasmineJibril you sound like an LLM
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@networkservice
Aaron A. Glenn
3 years
me yelling at network devices 2003 to present:
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@networkservice
Aaron A. Glenn
5 years
"whitebox? no, we prefer quality software from trusted vendors"
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@networkservice
Aaron A. Glenn
2 years
back in my day we bled in the rack on purpose. to show the equipment we weren’t scared. you think we yelled at spinning drives for youtube clout?! there was no youtube!!!
@stubarea51
Kevin Myers
2 years
Don't enter a maintenance window without it...
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@networkservice
Aaron A. Glenn
5 years
My new daily driver is here!
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@networkservice
Aaron A. Glenn
2 years
so AS7007 has finally returned to the DFZ and as its new steward I promise it won't mess up your FIBs unless you ask it to do that.
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