Daniel Pelfrey

56 posts

Daniel Pelfrey

Daniel Pelfrey

@DanielPelfrey7

I am professional problem solver. Learning new things, exploring how things work and interact to their full depth is my personal mantra.

Knoxville, TN Katılım Haziran 2018
132 Takip Edilen40 Takipçiler
Daniel Pelfrey
Daniel Pelfrey@DanielPelfrey7·
@andylapteff I recommend a book by Redouane Meddane titled ospf interaction with rfc. It breaks down rfc via labs. It includes topology, configs, and verifications, and walks through detailed configs/verification to drive home the concepts. This and the cheat sheets are handy.
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permit ip andy andy
permit ip andy andy@andylapteff·
I just read a section of an RFC. Please clap.
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Daniel Pelfrey
Daniel Pelfrey@DanielPelfrey7·
@TimBertino The last time I used proxy arp was with dialup gear. Let's say you have a /24 and 4 devices with 2 t1s each. The gear and pool was in same subnet. Each device had a pool of lets say 48 ip addresses. It is a simple way to do things but does not scale.
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Tim Bertino
Tim Bertino@TimBertino·
Can anyone give some examples of production network use cases that would require proxy ARP? Just trying to understand what scenarios it would make sense.
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Daniel Pelfrey retweetledi
OLCF
OLCF@OLCFGOV·
What is the world's fastest supercomputer doing with its #exascale speed? Frontier is "Planning for a Smooth Landing on Mars" 🚀 #TOP500 #science bit.ly/431JPrg
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Daniel Pelfrey
Daniel Pelfrey@DanielPelfrey7·
@TimBertino @NEBloodBank @ericchou I like to donate blood and then have a big thick steak or some burgers afterwards. I am terrified when it comes to needles. I can't watch it going in or out. It is for a good cause. A few minutes of discomfort can help save a life. Worth it.
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Tim Bertino
Tim Bertino@TimBertino·
If you're able to, I strongly encourage you to #GiveBlood. It's a low lift way to do some good. I don't have many skills, but I can bleed with the best of 'em! @NEBloodBank Hi @ericchou!
Tim Bertino tweet mediaTim Bertino tweet mediaTim Bertino tweet media
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Daniel Pelfrey retweetledi
OLCF
OLCF@OLCFGOV·
Work toward a potential crewed @NASA mission to Mars was launched on the OLCF’s Summit supercomputer in 2019 and flew to new heights on Frontier in 2023. bit.ly/431JPrg
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Daniel Pelfrey
Daniel Pelfrey@DanielPelfrey7·
@TracketPacer Is that a cut through or store and forward switch? Do you see errors on just one interface or multiple ones?
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TracketPacer
TracketPacer@TracketPacer·
alright here goes: does a juniper EX4300 auto-drop frames w FCS errors? if so, do the dropped frames count towards 1) the interface drop counter &/or 2) the interface error counter?
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permit ip andy andy
permit ip andy andy@andylapteff·
What is the world’s fastest supercomputer working on? Cures for cancer, prediction of natural disasters, cleaner-burning engines, nuclear reactors that fit on a tabletop, and inquiries into the origin of the universe. No big deal. Stay tuned for related @artofneteng content!
Oak Ridge Lab@ORNL

Frontier is the fastest #supercomputer in the world, but reaching No. 1 was anything but quick. Follow the epic journey to the #exascale era ⤵️ ornl.gov/journeytofront…

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Daniel Pelfrey
Daniel Pelfrey@DanielPelfrey7·
@andylapteff It is good to vent...get it out of your system (privately of course) and then find empathy and compassion... can help with forgiveness and healing.
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Daniel Pelfrey
Daniel Pelfrey@DanielPelfrey7·
@andylapteff @danedevalcourt Gratitude is a great point. I have to catch myself and question myself during negative thoughts and reactions. Was this warranted? This requires practice. Rachet it down also helps in the feedback loop.
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permit ip andy andy
permit ip andy andy@andylapteff·
@danedevalcourt Practicing gratitude changed my life and I do a gratitude list every morning. For me, gratitude replaces negative thoughts with positive thoughts and my happiness grows in proportion to my gratitude. When I focus on abundance it tends to increase. Same with scarcity.
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Daniel Pelfrey
Daniel Pelfrey@DanielPelfrey7·
@andylapteff Be sure to stretch and start off slow. Do half of what you did a month ago and slowly ramp that back up over the next few weeks.
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permit ip andy andy
permit ip andy andy@andylapteff·
Back at the gym after a month off. Still amazed how quickly strength evaporates after a break.
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Daniel Pelfrey
Daniel Pelfrey@DanielPelfrey7·
The art of home made pumpkin spice latte, light reading and my favorite podcast. @artofneteng
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Daniel Pelfrey
Daniel Pelfrey@DanielPelfrey7·
@andylapteff I can't wait to see your content. It was a pleasure meeting you all. Thanks for the work you all do in helping improve the networking field and the encouragement helping folks get into networking .
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Keşfet

@andylapteff @TimBertino @top500supercomp @olcf @NSF @doescience @NEBloodBank @ericchou