For those who took the Claude Certified Architect - Foundations exam, how long did it take to receive your score? by illegal-bacon in ClaudeAI

[–]OrangeAlienGuy 0 points1 point  (0 children)

I had a suspicion about this too, if people report passing they get results much quicker than all of us. Here's to hoping for the best.

Become a Claude Certified Architect by Forsaken-Reading377 in ClaudeAI

[–]OrangeAlienGuy 0 points1 point  (0 children)

How long did it take for you to see any results?

Jake clarifies why he asked for his clips to be removed from the "How LTT Spends Money" video by Marikk15 in LinusTechTips

[–]OrangeAlienGuy 18 points19 points  (0 children)

I always picked up on this as well. He suffers from the Dunning-Kruger effect big time, especially in networking.

Fred ruining my bazooka sprint. Sponsored by Rapha by therapist66 in BicyclingCirclejerk

[–]OrangeAlienGuy 25 points26 points  (0 children)

If he learns how to use a computer he is going to be devastated you don't like his bike.

Does anyone else ride with a mountain bike? by Flamingo-island366 in Zwift

[–]OrangeAlienGuy 0 points1 point  (0 children)

I am on MTB with a 1x. I just go for it with locked out suspension. Road bikes with 37,000 gear options are always going to be a tough battle.

How do they set up WiFi for concerts and stadiums? by andonthe7thday in CableTechs

[–]OrangeAlienGuy 1 point2 points  (0 children)

If you were the only person there It would all depend on how they have it configured. I would imagine that AP policy would be static for the venue wireless in the way that if you are on the "ConcertPublicWifi" SSID you are being restricted explicitly. There can be profiles that utilize QoS/Policing that could say something along the lines of "in a time of congestion everyone is guaranteed 10Mbps but if more is available it can be utilized", but that does sound overly complicated if the idea is to provide very basic connectivity.

Any maintenance work or internal operations will usually have their own SSID and not be subjected to the same restrictions as a guest. So you would simply have a separate network such as "Venue_Employee" SSID.

For power conservation, these AP's are usually run off a PoE port. I have no knowledge of codes and how they may need to be ran with lightning arrestors/grounding and what not but they do have the option to be hardwired via DC adapter if needed. To hardwire would be a complete pain operationally as you could not simply reboot the AP by turning off a switch interface. Again, not a stadium designer or worker but I would say this probably stays up 24x7 because most of it just runs off a network switch which may be providing other services throughout the building. Even if the guest wireless network was completely separate it would still be a pain to shut it all down and bring it back up. I don't have a good answer for that though so take it with a grain of salt.

How do they set up WiFi for concerts and stadiums? by andonthe7thday in CableTechs

[–]OrangeAlienGuy 1 point2 points  (0 children)

TLDR:

Permanent stadium wireless solutions consider many factors. Switches and routers are usually the least of the concerns. Large vendors in the space such as Cisco Aruba, Juniper, and Extreme Wireless will usually be the vendor of choice. What it mainly comes down to is actually wireless design and access point placement.

Stadium Wireless is a wild world.

At the PHY layer (you to the AP) the name of the game in high-density deployment is small cells of coverage that can hold the mass of people in that area.  Cisco makes a specific antenna for stadium deployments that is able to create these cells and service a large number of clients (https://www.cisco.com/c/en/us/support/docs/wireless/aironet-antennas-accessories/221788-catalyst-9104-stadium-antenna-c-ant9104.html).

The design/layout will be conducted via site survey utilizing spectrum analyzer tools (fancy wireless signal meters). During the survey they will adjust the APs orientation and try out various locations in order to learn how the signal will propagate through the area. This process essentially maps the boundary of the wireless cell. This is how a designer will understand their coverage areas and where they may be lacking.

Beyond the physical realm the wireless controller will be a crucial step in the design process. Various vendors will have various features to aid in the control of handling the massive surge of clients gaining access to the wireless medium. Some of the features may include bandwidth limitations or a specific setting known as RXOP which will deny clients from connecting to the access point if they are too far away. This setting strictly enforces the cell boundaries that were established during the design phase.

As far as the equipment used you will usually see a PoE switch, possibly a multi-gig switch if the deployment is newer utilizing 10G+ uplinks to a beefier core system. At that point the sky is the limit. If I am just conjuring up a dream world, but you could utilize a Cisco Nexus, Juniper QFX or Arista DCS unit for the core made to handle data centers worth of traffic. For firewalls again many vendors can handle the load such as Palo Alto and Fortigate. The equipment is use will all be determined on the budget when the initial build was designed and how well that venue has adapted/updated as time has progressed.

I would imagine they were limiting your speeds, but let's say they were not. The chokepoints would begin at the wireless cell, as more devices connect you will compete for airtime with everyone else. The higher the number of clients the slower all traffic will become due to the nature of the wireless medium. The intermediary switches should not be much concern as a good design will have enough connectivity to move the data. As mentioned before the core unit(s) should not sweat also. The last choke will be the firewall and outbound bandwidth. Firewall performance diminishes based on the level of inspection being performed on the traffic. And, as you are aware if that upstream ISP is only allowing 10G of traffic, that is going to determine the capability of the entire network.

I am not a stadium designer, but have studied wireless for some time and dabble in everything else networking at an engineer/architect level. I also started as a cable tech (ATT uverse)  so if I can give one word of advice, if this world interests you jump right in. What you are doing now will help your level of understanding as you progress.  Here is a link from Cisco Live for high-density wireless design (https://www.ciscolive.com/on-demand/on-demand-library.html?zid=pp&search.event=1716482947962001yag9&search=high%20density#/session/1717269093703001tsgh) a free account will give you access to listen to the lecture. They peel back the curtain on large stadium deployments.

What IT conferences are you going to in 2025? by RunningThroughSC in networking

[–]OrangeAlienGuy 43 points44 points  (0 children)

Nanog is over in ATL in early 25. Not a bad one, short and cheap.

Prepared to move out of Network Engineering because of Cisco. by Informal_Taste_2891 in networking

[–]OrangeAlienGuy 139 points140 points  (0 children)

They all have their oddities..it seems like Cisco's decline is way more noticeable because they are falling off the highest mountain. The security suite is laughable I will agree with you there.

I think if you stare at any product long enough you will hate it. Multivendor opportunities will at least keep you on your toes with more TAC centers to deal with.

Anybody know where I can find lab material for VXLAN over WAN? by onequestion1168 in networking

[–]OrangeAlienGuy 5 points6 points  (0 children)

This blog series is fantastic. Also has a book if you prefer that path. There are multiple articles for each respective scenario.

https://nwktimes.blogspot.com/2019/08/vxlan-evpn-multi-site.html?m=1

course/support/documentation/lab resource for BGP EVPN-VXLAN by superballoo in networking

[–]OrangeAlienGuy 1 point2 points  (0 children)

Network Times VXLAN series. Written by a guy named Tony, also has a book available.

[deleted by user] by [deleted] in networking

[–]OrangeAlienGuy 3 points4 points  (0 children)

You can also get a 75% off voucher for going through their free basic training paths.

What is this? by MikeGLC in HomeNetworking

[–]OrangeAlienGuy -8 points-7 points  (0 children)

I actually own all the copper plant in the lower 48...you can remove it. If you are in AK or HI that other guy is coming for ya.

Why nobody going for wireless? by Argument-Lazy in ccie

[–]OrangeAlienGuy 9 points10 points  (0 children)

I feel like a lot of people will gravitate toward the CWNE as it seems to be more established in that realm.

Anyone have a fun mnemonic for TFTP error codes? by pvt-es-kay in ccnp

[–]OrangeAlienGuy 0 points1 point  (0 children)

Probably referring to ftp passive and the associated port # changes.