Daniel Dib
@danieldibswe
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Senior Network Architect | CCIE #37149 | CCDE #20160011 | CLN VIP | Cisco Champion | Blogger | Technical Writer | Mentor
Sweden
Joined January 2011
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Last Seen Profiles
Some good news. I have been promoted to Senior Architect at Conscia, the most senior individual contributor role we have in tech. I'll be doing much the same as now but spend even more time in mentoring colleagues and working on things that will benefit the entire company.
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I learned this nice feature in Wireshark from a gentleman named Curtis Whipple when I posted to LinkedIn. You can use Wireshark to display a packet diagram. Go to Edit -> Preferences -> Layout and select Packet Diagram for Pane 3. You can click the diagram as well.
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Brilliant Dilbert comic. Hitting a little too close to home...
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Hey people. I got some exciting news for you. I've been doing some work with
@CiscoPress
and we are doing a giveaway. Three people will get a code to these four books:
Cisco SDA
Cisco SDWAN
ENARSI
ENCOR
Like, retweet, and comment why you should get this bundle.
#GivingBack
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Tech is a relatively comfy job(compared to many), pays well, is interesting, has good benefits. Yet, there are not a lot of women in tech, especially networking. Doesn’t take a brain surgeon to realize it’s not women’s fault. We need to get rid of the a-holes and be inclusive.
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We don't need networking people in public cloud... Yeah, right... 😅
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Way too soon 😭💔
I already miss you, brother. Wish we would have met one last time, but Covid came in the way.
You changed the lives of so many in this industry. I hope we meet again one day.
RIP 🙏
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I did it! I passed the
#AWS
Networking Specialty this week. It was a good exam and I'll blog about the experience later.
Sending a big thanks to all of you and especially
@nickpowpow
@ERNESTOSALASG
@CCDE066
@evanfisher214
@bgp_mane
for keeping up with all of my questions 🙏😅
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5 years married to the love of my life ❤️ 18 years as a couple, or something, I can barely keep count 😅
Looking forward to growing old with this woman. My wedding day was easily one of the best days in my life 😊
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Someone had been told that the CCNA is obsolete. I don't agree with that. At all. Something like the CCNA is the first logical step for everyone in networking.
Furthermore, if security people, sysadmins etc. had close to CCNA-level knowledge, life would be so much easier.
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192.16.x.x, 172.168.x.x etc., could easily be confused for the
#RFC1918
ranges. Not everything starting with 172 or 192 are private IP addresses. In fact, the majority of 172.x.x.x and 192.x.x.x are public IPs. Only 172.16.0.0/12 and 192.168.0.0/16 belong to RFC1918.
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A lot of you on here with platforms make it look like you are always working/learning. Be aware that those that look up to you see you as super humans that never take a break.
My goal has always been to share the struggle with you all. We have a mental health issue in IT.
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Not my most impressive performance but a pass is a pass.
#DevNet
#DevAsc
#ClassOf2020
Devnet Associate completed.
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Do you do networking? Have you ever had MTU issues? I'm guessing the answer to my question is yes.
In my latest post we'll deep dive on headers, their size, MTU, MSS, and MSS clamping.
I hope you find it useful 😊
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This is the most research I've done for a blog post. Ever. It's taken months, reviewing hundreds of papers, standards, RFCs, interviews, etc. I was lucky to get to talk to some people from the original P802.
This is the History of Ethernet.
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For the last couple of years I have worked extensively with
#SDWAN
. Let me share with you some of the common design mistakes that I see, often to save a few bucks, which ends up costing more in the end. Let's focus on the transports. A 🧵
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Didn't know that Cloudflare runs a speedtest server (). Pretty cool stats you get from it. This is on 5GHz WiFi:
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You don’t have to pay big money to get advice from experts. You don’t need a bootcamp. There is no get rich quick setup in IT.
Plenty of us giving advice and mentoring for free. Network+, CCNA, JNCIA, plenty enough to get started. Build a lab! Practice! Engage here. It’s free.
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Hey people. Listen. You don’t need to learn everything RIGHT NOW.
Man I hate that phrase. Get off Youtube and focus on something. If you want it, go for it and see it through. Don’t jump to the next thing at first sign of adversity.
Don’t try to multi task too many topics.
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I have 20+ years doing networking, 12 as a CCIE. I just learned something interesting about VLAN 1. I find immense joy in learning new things. Even the trivial stuff.
Best thing is, I'll share it with you all. Stay tuned for some history!
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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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Always a pleasure to meet up with the gentleman
@davidbombal
He does a lot of good for the community and is a truly generous person.
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So tired of the ”don’t bother with certs because automation is all that matters” simplistic point of view. Don’t follow such poor advice. This is why I am so passionate about learning. Always be learning! Knowledge matters! You can’t automate what you don’t know.
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Sitting here watching pictures of Nick. I remember he built that wall to have better sound when recording. He always found creative ways to improve things without adding a lot of cost.
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I'm always surprised how rare it is for companies to invest into training their employees. At your next interview, I suggest you ask about this.
"I'm really passionate about learning, can you explain what kind of training you offer your employees?"
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”I followed you because of X…”
Yes, and you are free to unfollow me because of Y.
This account is 99% tech but if me standing up for women’s rights or other things upset you, just unfollow, you’re not a plane, you don’t have to message your departure 🎤
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Are you all still interested in learning the networking fundamentals? STP, OSPF, BGP, etc? I'm contemplating if there's still interest in doing so and if should spend my time blogging about these. Or are there already enough resources?
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Rage Against the Machine never said what machine they were raging against but I’m pretty sure it was a Catalyst 6500.
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Seeing junior people move straight to cloud without background in systems administration or networking has me concerned. It’s still similar tasks as on-prem just with another flavor. Don’t build a career on only cloud skills. May seem smart now but maybe not long term.
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Sometimes bad things happen in the community, but we can respond with goodness.
@John_Capobianco
and
@jedelman8
have already answered the call.
I have secured thousands of dollars, books etc. in a HUGE giveaway to
#WomenInTech
Reply to or RT to enter. Last day is 7 Jan 17.00 UTC
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10 years ago, I stepped into the
#CCIE
lab in Brussels. I finished 2h early and did a lot of verification. This was my make or break moment. I'm not sure I would have gone back for a 4th attempt. Thankfully I passed, and have been bulding this community since then 🙏😊♥️
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One of my favorite pictures from CL. My brothers
@nickrusso42518
and
@malcolmbooden
Feels like yesterday.
Give your loved ones an extra hug today, folks. Cherish those moments with friends and family.
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I've been working for the same company, Conscia, for more than five years now. This thread will describe why I have stayed and will help managers and leaders to understand how you can keep high performers around.
This is going to take a number of tweets.
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It seems not many know about this. When you see a message like this:
Translating "configt"...domain server (255.255.255.255)
Don't disable ip-name lookup. What you really want is transport preferred none. This means you still have name lookups but not this annoying behavior.
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Being a network architect in this time and age can certainly be challenging. I sometimes feel like I'm the only one still interested in flooding domains, convergence, BGP, multicast, architecture in general while many people fully moved into automation and AI.
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Tech is a field of constant learning. It's not a race. You can't finish so don't run at a pace like there is a finish line. Sometimes you have to sprint, sometimes you need to take a break. That's OK. Focus on building the best you, not what everyone else is doing.
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Not sure who created this picture but it's gold! /cc
@ioshints
Learn the fundamentals first, then automate.
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Heading out for some dinner soon. Wife and I are celebrating 20 years together 😊♥️🥰
Next week I will be spending skiing. So I won't be around too much wishing you all a great weekend!
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If you work in IT, you will definitely have to work extra hours sometimes. That doesn't mean you shouldn't have rules. My rules:
1. I don't work for free. If I'm working extra, someone is paying for it
2. Working extra can't put my learning to the back burner
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My wife is a nurse and works with Covid patients. She’s working Christmas Eve and the following 3 days as well.
Please stay safe and think of the people sacrificing time away from their families even though they are exhausted.
Dealing with death tough for staff as well 🙏
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Now almost 10 years after the
#CCIE
there is a LOT of details I’ve forgotten about STP, IGPs etc. However:
- I can look up things quickly when I need to and jog the memory
- I know where to find the info I need
- I made friends for life that cover my gaps
This is true value.
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@LearningatCisco
@ChuckRobbins
@citylifematt
Can't believe it's been 10 years already. Happy that I've been able to stay technical, keep learning, and been able to build a community around networking and network design. Onto the next 10 years!
#CCIE
#NetVet
#CCDE
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The next time your management claims IT is not your core business, remind them that Maersk, a shipping and logistics giant founded in 1904, with 35 billion revenue anually, almost went out of business due to ransomware affecting AD and Windows env.
IT IS your core business.
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Turns out entire family had Covid. It was no joke. I'm a fit and fullly healthy 40-year old that's almost never sick. I was out for a week. Kids were pretty sick and even wife that has 3 shots and a previous infection.
Thankful that we have vaccines. Could have been nasty...
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Me trying to keep up with existing skillset, while learning new things like automation, cloud, SDA, etc 😅
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I’m happy to say that I passed my karate grading and now have an orange belt. Thankful for my senseis and fellow students 🙏🥋
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Pro tip: If you advertise more than 100 routes to AWS over BGP, per route table, your BGP session will be shut down. That's cloud scale for you folks 😉
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8.8.8.8 is a DNS server so it shouldn't be used to test internet connectivity but it's an IP that people remember. What else would you use if you don't want to rely on DNS lookup? Is there a server that's expected to reply to ICMP or is 8.8.8.8 good enough?
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Interesting that people think the number of Network Engineers will decrease. I can see the implementation resources and ops resources could potentially decrease, but Engineers? There's more need than ever with WANs, internet, private cloud, public cloud. AI does not change that.
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Considering my background in SD-WAN, I should start OnlyWANs where I show you the naked truth of SD-WAN 😅
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Wife got us tickets to Andrew Loyd Webber’s Jesus Christ Superstar for my 40th birthday. It got pushed forward but here we are some months later. Night out without the kids ❤️
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It’s my
#CCIE
anniversary. 11 years ago I left the lab in Brussels with a good feeling. A couple of hours later the e-mail came in 😊
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As promised, here's my summary of what I used to study for the
#AWS
networking specialty and some tips on how to think when answering the questions ->
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I did it! A bit jetlagged but I successfully graded to yellow belt in Wadoryu Karate 🥋 🙏
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I'm happy to announce that I'll be joining the CCIE Advisory Council. Another great opportunity to work with Cisco in providing the road ahead for learning and certifications. Thanks,
@YusufBhaiji
for the opportunity.
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I passed the ENSDWI 😊 Got an early start and only needed 30 minutes or so. The exam was OK. I would rate it maybe 2.5/5. A couple of broken questions, picture quality mediocre, a little too much focus on CLI vs architecture/general understanding but not worst exam I’ve taken.
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Lot of weak ass men out there. Men that look up to Andrew Tate. Men that comment on
@TracketPacer
and other womens videos on their looks, clothing, and sleeping with them.
You are not alpha. You are not a real man. Real men treat women with respect. There is no place for you.
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I'm a networking expert and I got "schooled" on a topic in OSPF by a friend. If you're a real learner, that's when you say thank you for the lesson, spread the knowledge to others, and move on. You got a lesson for free, why cry about it?
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Idea that popped up in my head. Let's create a thread for people that want to be better Network Designers/Architects.
What resources would you recommend? A certain book? Course? Videos? Doesn't have to be only networking, could be apps, systems, DNS etc as well
#Design
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The reason I’m not at CLUS this year. About to surprise Molly with breakfast in bed. Pancakes await! Happy birthday Molly! ❤️ 10 years today!
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Massive outages right now for all organizations using Crowdstrike. Saw someone on Reddit saying they have 210k endpoints that have the Blue Screen Of Death. This will probably take weeks to recover from. Hugops to everyone involved right now.
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I have been contemplating writing a book how to accelerate career in IT. Would you be interested in buying such a book?
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Heading up to Stockholm to welcome customers and partners to our new HQ. There will be people from Cisco, Palo Alto, and Rubrik. Technical seminars, food, and games! Should be fun!
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Would you rather be the best Engineer in the world or the happiest person in the world?
Stupid question, right? Yet we technical people put way more effort into maximizing technical skill and give up sleep, exercising, time with family.
When is good good enough?
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If you are in a hiring position in IT, and don’t understand that a person studying for a cert has ambition, discipline, ability to plan, execute, and consume large amount of information, then you stand a fool and ignorant, regardless of how you value the cert itself.
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Everyone Network Engineer's dream. The flight attendant calling out: "Do we have anyone on the plane that knows BGP?" 😅
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Been using a bit lately. Considering moving over to it entirely from Visio. What I think does better:
- Connectors
- Adding connection points
- Highlighting when things are aligned
- Import of shapes used in public cloud
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I have amazing colleagues. Starting new architecture initiative with a cust and we will have 6 technical resources:
1x CCIE Ent + CCDE (me)
1x CCIE Ent + CCIE Wireless
1x CCIE ENT
1x CCIE Wireless
1x CCIE DC
1x CCIE DC
That's one solid team. All with 15+ years of experience.
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Be the router...they said.
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One of the best explanations I've ever seen to what it means to become
#CCIE
certified (or other expert level certs) from the maestro and my brother
@Peter_Paluch
Life long learning. Sending the ladder back down. Things that matter a lot to me personally.
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The concept of MSS in TCP can be a bit confusing. How does it relate to MTU? How does MSS clamping work?
I’ll put together a post showing some interesting things.
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As new Cisco exams get released, there are two things I’d like to give as tips. Don’t sit around waiting for an official study guide. Learn to study on your own based on the blueprint. This is one of the most necessary skills in IT and will accelerate your career. 1/2
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Can we as a community please stop spreading lies? No, the rise of
#SDN
does not mean networking goes away. Roles change but isn’t the network more important than ever? Did virtualization and cloud remove all Sysadmin jobs? And we still support broken apps. Reskill and flourish.
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From Cisco Learning Network. Someone asked about the value of the
#CCIE
and how you know when you are ready to take the lab. My response:
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Got the certifications to sync at
@LearningatCisco
I have been very selective in what certs I go for but they do add up when you've been doing this for 15 years.
Proud of the time I have put in and happy to help anyone that is passionate about learning.
@citylifematt
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Preparing an interview. So to make sure they are a real Engineer I have the following setup:
- 12h interview
- Must be able to clear DNS cache without looking up commands
- Must be able to say what BGP attributes are mandatory or optional
Am I doing this right?! 😅😅😅
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When the maestro
@Peter_Paluch
talks, you listen. A
@LearningatCisco
user asked if CEF is used only in multi layer switching or also for L2 forwarding. Peter delivered a detailed, but easily understood, explanation as always. It will be the best thing you read today.
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