Kevin Myers
@stubarea51
Followers
7,223
Following
642
Media
1,385
Statuses
9,955
Sr. Net Arch focusing on #MikroTik , #whitebox and #opennetworking . Advocate for #IPv6 & rural ISPs. Husband. Dad. #Chesspunks War Eagle. Geek. #Lego
The IPv6 global table
Joined July 2015
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Ok, i'm dusting off my PC building skills after 20+ years to show my gamer kids how it's done. Ordered the case below. Now I need to get current.
Latest jumper settings?
What's the best soundblaster card?
How many drives can I put on a ribbon cable?
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If Cisco is the only answer to every problem, then we aren't building networks, we are building a brand.
Design with protocols and not products.
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My 5th grader: "Zoom says the Internet connection is unstable"
Me: "I have detailed ping metrics for IPv4 and IPv6 to multiple destinations and we have 935Mbps of bandwidth available....tell Zoom to stop blaming the network"
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I'm seriously considering building an SSID for my home network called "US Robotics Modem" and rate limiting it to 56k.
Then i'm going to make my kids browse and load YouTube videos with it at low res so they understand how good they have it.
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Thought exercise for the day:
What kind of network ran the Death Star?
How many devices? What protocols? Who gets to tell Darth Vader the laser is offline because of an OSPF bug and TAC won't help cause the equipment is EOL?
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Hit 3750 followers today.
Pour one out for the legend - second only to the exalted 6500.
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Well, it finally happened. I've wanted my very own ASN ever since I first learned BGP.
Today I finally got one. 😍
I am now the proud owner of AS 1016 !!!
@IPArchiTechs
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Network Engineering career tip of the day:
Seek out environments where you get to do network migrations on a regular basis.
You'll learn more about protocols/design in that process than probably any other method.
Static environments are great for managers, bad for careers.
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I think the most overlooked skill for network engineers is the ability to plan and execute network migrations.
It's the hardest thing to get right & has the least amount of professional development / training material out there as compared to protocol / platform skills.
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Only 10 minutes until 5PM on a friday and you know what that means:
It's a great time to add a VLAN to the existing ones
conf t
switch (config)# int te1/0/1
switch (config)# switchport allowed vlan 777…
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Network Engineering Twitter has certainly been active for the last few days & while there was lots of negative, some positives have emerged.
To sum up:
Be open, welcoming & helpful to women in Network Engineering or fuck off.
Same goes for anyone else struggling to fit in.
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This is the first in a series that I've been working for a while that relates to the fundamental elements of network design for WISPs/FISPS as it relates to the separation of network functions.
Hope you find this helpful 🙂
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If I hear "Let routers route and switches switch" one more time, I might throw a line card across the room.
It's 2022, I think L3 switching is safe 😂
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This has to be the coolest thing i've seen in networking hw in a long time.
An entire
@mikrotik_com
router on a PCIe card w/ 2 x 25G. Put it in a server and go. Works in RouterOS 7 CHR as well as Linux/FreeBSD.
List price $199
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A network engineer that scoffs at the physical layer is usually the same kind of person that will run to a senior engineer & ask why BGP keeps dropping because they don't know what CRC errors are - or how to look for them - or what causes them.
this is in response to these kinds of comments on my Top 10 Neteng Tools vid
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@notshenetworks
Fucking hell not that shit again...I've designed ISPs for entire countries and i'm *not* a coder.
I'm glad there are people that know how to script and code, there is important work in network engineering for that skill set.
But it's def not a requirement. For every hundred…
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Pro Tip: Do not redistribute the full BGP global table into an OSPF network of 8,000+ routers.
If there was such a thing as an L3 broadcast storm, this would be it. Took 14 hours to isolate and resolve.
The LSDB was angry that day my friends...
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@ashtonpittman
@tatereeves
You're going to hear some more "angry rhetoric" and you deserve every bit of it.
Apparently "Freedom is not free"...It's sacrificing 8th graders.
We need
#MaskMandatesInSchools
now
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Pretty sure i'm the only person in the neighborhood that had 100G optics delivered today. 😂
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My gamer children are starting to ask questions about IP addresses and ports.
Is it time to have "the talk" about the BIRD daemons and the BGPs ?!?!
If I tell them about IPv6 can we call it HEX ed? 😂
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Finishing the testing of DHCPv6-PD server on a MikroTik router today for a FTTH ISP because the $400,000 Cisco ASR9K they bought only supports PD relay and not server. 😂
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The way you design your network is far more important than what kind of vendor logo is on the box.
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What was the hardest topic in network engineering for you to learn?
For me it was definitely subnetting - everything started to click after I really understood the how/why behind subnetting.
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I can build a global network backbone using BGP and MPLS with my eyes closed....don't ask me why the printer isn't working. Some mysteries of life cannot be explained.
I have a 4 year degree in computers. I have 2 expert certifications among many others. And I can’t seem to burn a bootable Windows 10 iso from my Mac.
If you’re new to tech and struggling... you’re probably doing it right. Just keep going.
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It's 100G
@MikroTik
day today!! They got here early.
Just got them updated to ROS 7.2 and will be getting ready for testing!
I'm fairly certain these are the first pair of 2216s to go online in the US and I can't wait to beat them up with millions of routes 😁.
@mikrotik_com
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#MikroTik
released ROS 7.1 today which has been a decade in development.
If you're not looking at
@mikrotik_com
, you should be.
Hard to find a router that's as inexpensive as $25 & will do MPLS over IPv6 (among other cool things)
Check out the free VM
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What I think of when trying to avoid dynamic routing protocols in firewalls..."we'll just use static routes, because it will be simpler"
1 year later....
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Have you heard about this amazing routing protocol called RIP???
it's better than OSPF, EIGRP or IS-IS!!!!
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Ok Network Engineers....
How do you teach your kids how the internet works? while chasing them outside?
Chalk diagrams!
Your turn...post your
#ChalkNetworking
diagrams
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The amount of money wasted on vendor SFPs always amazes me. In SP networking, we almost always use generics and put critical services like 911, police, fire, hospital, nuclear power plants, etc on top of that infra.
Was talking to a friend who runs a hospital network, and the total cost of SFPs for a DC upgrade he's doing is NUTS
They're all high speed links, and I remember quoting SFPs back when I was in pre-sales so it shouldn't surprise me - but wow - the cost of SFPs always amazes me
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Spent part of the weekend rebuilding and adding to our
@mikrotik_com
RouterOSv7 development lab.
Added 4 new CCR2004 routers to do more testing with BGP/OSPF and MPLS on ROSv7.
Now I just gotta work on cable management and power...a neverending battle. 😂
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New additions to the
#MikroTik
100G ROSv7 development lab.
2 x CRS504-4XQ-IN racked & powered *only* via 802.3af/at POE. (technically, it requires 802.3bt)
I'm able to pass 100G of traffic with under 25 watts of power🤯
This is huge for ISPs powered by solar, wind and hydro
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A lot of chatter on tech twitter in the last 24 hours like "don't bother getting into tech if you don't code" and "you aren't a real engineer without 12 hour interviews"
I'm not sure who needs to hear this, but that's 100% bullshit.
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Rolled out IPv6 for another regional ISP yesterday and got their
@powercode
billing system integrated into Netbox so that Prefix Delegation can be tied into RADIUS and IPAM.
Watching it all work together when a CPE gets plugged in never gets old 🤓
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The
#BGP
Driving Test to get your BGP License
Instructor: "Ok log into the router and be sure check your filters before you start peering"
Student "I'm just going to redist a few of these IGPs here - no need to filter"
Instructor "No BGP for you!"
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In 1884, some 28 years before the Panama Canal existed, it was proposed that ships be transported over land via rail using multiple locomotives to pull them.
When I see the network being used to poorly solve a problem, this is the picture i'm sending
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We've been working on speed testing/validation for
#MikroTik
beyond the bandwidth tester in ROS.
These are the first results of L3 ASIC testing (60/590/1514 bytes) in our Euro DevLab w/ Cisco TREX & a CRS305.
To be clear, this is a $149 box routing 10G in hw flawlessly😎
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Confirmation bias in networking is real.
Issue came to us when a MikroTik router was suspected to be the culprit for 1G circuit perf issues. Speed tests were consistently low.
12 hours later we opened a JTAC case for input err on 100G ports in the Juniper core for the ISP.
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We don't talk enough about how much easier it is to subnet
#IPv6
.
Insane amounts of space means you can give sites consistent (and ample) subnetting plans and not obsess over future growth.
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We worked with a client that was notified by the FBI their used Cisco switches were compromised.
This is real and the frequency is increasing. Verify your supply chains.
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As I read some of the comments about why people got into networking from my last tweet, there seems to be a group that were drawn to networking because it wasn't coding
I'm definitely in this category and helps to explain why moving to ansible/python/etc is so hard for…
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I want one for Christmas! 😂
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Maintenance window tonight to build a new multi-100G core for an ISP DC.
Essentials are needed.
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Based on the rapid shift to WFH due to
#coronavirus
, here is a design for VPN scale that we've been working on and running in prod for a while at our Denver, Amsterdam & Sao Paulo DCs for
@IPArchiTechs
.
It uses
@ZeroTier
@opnsense
and
@FRRouting
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"Nobody needs 1G Internet speeds..."
Your washing machine: "Hold my bleach"
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This is an amazing resource to skill up on BGP/IS-IS/IPv6 and more that is completely free.
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Been testing interop of IS-IS between
#MikroTik
and
#IPInfusion
Working pretty well so far. 😎
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I might be doing less BGP over the next few weeks as I snuggle this beautiful little girl. She is our 4th and our first girl...We are super excited and grateful she is here safe and sound.
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Typically, I only use gold plated connectors on my streaming internet cables.
It really brings out a rich fullness in the TCP three way handshake that's impossible with lesser cabling.
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"Enterprise grade" is for people who put IPv4 in their SDWAN and not IPv6 in their backbone.
There. I said it. 😂
Don't forget to unsubscribe and slap that "unfollow" button!
👋 bye
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Backordered
Network engineers of Twitter:
In one word, how would you describe the state of networking today in early 2022?
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Ok, if the Little Caesars pizza portal can tell me what slot my pizza is in on the monitor over the rack, why can't I have the same thing in the data center to find out what apps are running in the rack. 😂
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Added a bunch more connectivity today to the
#MikroTik
CCR 2216s so that I can start using traffic generator w/ IMIX profiles on the attached routers to put the 2216s under load as DUT.
I *think* i've cobbled together enough for 160G of throughput testing.
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Networking in 2024:
Me: "Hey ChatGPT, talk to your buddy the switch and find out why MPLS isn't working"
ChatGPT: "The switch says the license hasn't been renewed and you should feel ashamed of yourself"
Broadcom announced today that it has delivered Jericho3-AI, enabling the industry’s highest performance fabric for artificial intelligence (AI) networks. Learn more here:
#AI
#Fabric
#MerchantSilicon
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Why in the hell is it so hard to find the IPv4/IPv6 FIB capacity and routing scale for some major vendors?
Imagine a car maker going to great lengths to obscure the oil capacity of an engine.
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The
#MikroTik
ROS v7 development lab at
@iparchitechs
keeps growing! Have been working on LDPv4 and LDPv6 testing with VPLS.
Special thanks to
@UnimusNet
for config management and some low code automation.
The CCR2216s were a great addition. 100G CRS switches are next 😈.
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Even though this is slightly twisted, i'll take a pair.
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@msdh
We need the mask mandate back ASAP, it should never have been lifted.
The virus doesn't care about your politics, memes, gut feelings on scientific analysis or that you've suddenly become an online expert in epidemiology, statistical analysis and data validation.
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Our network team at
@IPArchiTechs
is growing!
We are currently hiring for a remote Network Architect position in the US/Canada.
If high end routing/switching with MPLS, BGP, IS-IS, OSPF, etc is interesting to you and you have a strong route/switch background, send us your…
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I do! My entire home network runs on
#MikroTik
routers, switches and APs with 1G symmetric fiber from ATT.
I use VPLS/MPLS to create the overlay for the SSIDs (home lan and IoT) and ZeroTier to connect to the
@IPArchiTechs
corp network.
Here's a drawing.
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I sense a growing frustration in NetEng w/ vendor TAC over the last 24 months that's somewhat above the usual gripes.
Things like long resolution time, TAC engineers without proper training & tightening of hw replacement.
Seems to affect multiple vendors
What are you seeing?
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@davedotdev
If you get tired of the power draw, the MikroTik RB5009 is 200 bucks, passively cooled, will push 10Gbps and can support 1G, 2.5G and 10G on a power budget of just a few watts.
Can even use it for peering and dump a few million IPv4/IPv6 routes in if you want 🤓
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Hit 3389 followers.
RDP access into our Gibson will be open to the Internet until 3390 is hit.
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#MikroTik
added VxLAN over IPv6 in release 7.6 beta10 last week.
With the addition of IPv6 hw acceleration in switches/routers that have Marvell ASICs, the possibility of single stack IPv6 w/ IPv4 overlays is getting much closer.
Here's a quick look at it in the ROSv7 lab:
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Working on some labs with full tables and decided to have fun with my upstreams...
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@msdh
This is inexcusable
@tatereeves
Our children should not be sacrificed at the altar of political appeasement for
#antivax
and
#antimask
constituents.
By avoiding mask mandates, you are buying political time *with lives* to see if this gets better.
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$25 bucks for a matchbox-sized router you can power from your laptop (and that does BGP/OSPF/MPLS/IPv4/IPv6)
As a neteng, it's the best possible thing you could keep in your bag.
Have used it for pcap, peering tests, wifi jump router for mgmt, VPN gw, ad-hoc AP, etc.
The
@mikrotik_com
map lite. One of the most versatile APs/routers available -- in the palm of your hand!
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MikroTik is gearing up for a lot of 25G/100G equipment announcements in the coming months.
What's your ideal port layout for a MikroTik 25G/100G switch? (maybe even a few 400G)
Which silicon from the Marvell Prestera family of chips would you like to see?
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