I have an existing wired network with a switches on multiple floors and want to change mesh-wifi brands.
The new system must support Modem>switch network>multiple mesh devices. I am NOT going to run new separate backhauls. Either they are advanced enough to work together on a network or they aren't.
My three Eero pro 6s decided to start having issues after months of working fine (and years on the previous gen Eeros). They want one of the mesh boxes upstream from my entire network...Does Amplifi require the same?
Is there anyway we can see the network topology from SSH? Example in packet tracer we can see what switch connects to another or a router that connects to another but in the wild we can’t see it as it should be as they are stacked up so with that being said is there anyway commands we can use to the topology as a whole ? I know we can use CDP on cisco devices and depending on the router configuration we can see it through sh ip route let me know if I exaplained it clearly. Please and thank you
Differential geometry and algebraic topology are not encountered very frequently in mainstream machine learning. In a new series of posts, I show how tools from these fields can be used to reinterpret Graph Neural Networks and address some of their common plights in a principled way.
First post in the series - introduction:
Part II will discuss the expressive power of GNNs and topological message passing.
Part III will deal with geometric flows and non-euclidean diffusion PDEs on graphs.
Part IV will show how the over-squashing phenomena can be related to graph curvature, and offer a geometric approach to graph rewiring inspired by the Ricci flow.
I'm not sure if I'm in the correct place but it seems sysadim-y.
I'm working towards a real sysadmin role and as part of my apprenticeship and have been working on a personal network topology.
I've got it all laid out but am reading conflicting information about what needs to be on it. I've included machine os, purpose and IP address if static. The connection type is also shown (5ghz or cat6 for example). I was also wondering whether you'd expect to see any port forwarding rule, mac filters and things like that.
For professional users is that more or less than you'd expect/require?
Hello,
for work, I've been tasked with finding open-source software that can provide system administrators with a "landscape" of the company's computer network. That is, we'd like to acquire static information about the servers in the network (e.g. OS version, network interfaces, MAC-addresses etc.), but also information about the network topology (e.g. server A has a direct link to server B, while server C does not).
I've put in a few hours of research already, but I'm unable to find such software. OSQuery was a promising candidate, but it is unfit for the job, because it does not run on ARM.
I'd be grateful if anyone in this forum could point me in the right direction, because I'm not even sure which terms to google. Up to this point, googling has only provided me with commercial software.
Also: sorry if this is the wrong sub, didn't really know in which one a question like this would fit in.
Howdy folks,
Like usual here is another informative lesson for you in Networking. This lesson obviously focuses on Network Topologies.
In this lesson I explain exactly WHAT network topologies are for the folks that don't know yet and then I also list and explain the different types you get along with their benefits and drawbacks. At the end I also list some key considerations you need to be mindful of when working with network topologies.
Network topologies is definitely something you need to know and understand for the N10-008 exam but when it comes to real life, you notice you're only going to use some of these topologies like the Star in most cases. In some rare cases you might use Partial Mesh, Mesh or Hybrid but the other ones in the video are not something your likely to work with. Other ones in the video are purely listed and explained for exam purposes for the folks that need to write the exam :)
Hope this helps. Here is the lesson
I recently stumbled on this great blog post by Chris olah on Neural Networks, Manifolds and topology.
https://colah.github.io/posts/2014-03-NN-Manifolds-Topology/
Does anyone know any more resources, preferable more recent, on the same topic? How has the theory advanced since then?
One Tolkien Ring to rule them all.
This is going to be long and rambly. I've been at this all day and I'm tired, so sorry in advance.
So I have a database for equipment in a data center. Most of the equipment is disconnected from any network, which is why I'm making an Access database instead of using a traditional network mapper. Some of the equipment is connected to things like KVMs, backbone switches, and serial console servers (you SSH into the console server, which in tern gives you a serial connection to the device as if you were connected directly to the console port).
I have a table with records for each device (asset), a table of IP addresses and the devices they belong to, and a table describing each kind of device (model number, manufacturer etc). At first, I had a separate table for KVM switches, and another for serial access servers, and then noted which server/switch each asset was connected to in the assets table. This made queries relatively simple, just relate the KVM/server field in the assets table with the corresponding KVM or serial server in its table.
However, in addition to the database, we have visio diagrams describing how all our assets are physically connected into a network topology. If some connection changed, like a server moved from one rack to another and is now connected to a different KVM switch, I'd have to document ti in both the visio diagram and the database. This made me think, surely I could get rid of the subtype tables for KVMs and serial servers, and just have one asset table, and then a table describing how they connect together. So I have a connections table with device A, port A, device B, port B and connection type fields. So I might have windows server #333 as device A, NIC 1 of windows server #333 as port A, backbone switch #23 as device B, and G0/3 on backbone switch #23 as port B, and "ethernet" as the connection type. This makes adding new connections super easy, as all we need to know are which devices/ports are at either end of the connection, and what type of connection (ethernet, serial, VGA, etc) it is. More importantly, someone somewhere has surely written software to parse a table like this and spit out a visual topology diagram, even if it needs to be arranged manually to make it look nice. I just need to find out what that software is.
Here's the rub though. that switch could be device A and the server could be device B instead of the other way around, The A and B fields don't correspond to a specific type of asset, they're j
... keep reading on reddit ➡hey, i already searched online, but i didnt find anything that i could use.
I want to visualize a network for a heating circuit.
I am using a list, which i convert into a nxn dependency matrix.
Is it possible to use a modul that is able to draw the topology of this by using this matrix?
Hi, I'm making a project that is essentially a line of low powered embedded devices that communicate over LoRa. These are going to be placed outside and run on batteries. I was wondering how I would relay a message down the chain of LoRas. Would I have to come up with a timing algorithm to turn on the first two devices, one in Tx and other in Rx then switch back and forth relaying down the line or is there a simpler solution? My sx1276 supports channel activity detection, would this essentially automate this relay in some way. Like would it cause the next closest beacon to wake up? I'm very new at using LoRas and networking in general so I'd really appreciate some help, thank you
Should a MPLS network consist of CE-PE-P-PE-CE topology? I have not seen any examples or read anything having a PE to PE connection. Wouldn't work fine if it was a CE-PE-PE-CE topology? Thanks in advance
Recently I played around with WireGuard on pfSense however I’m not keen on the implementation of it. I mean it’s great and it works however the user administration side of it was slightly tedious in that I had to email myself back and forth with keys, it’s really missing the QR code functionality that makes setup a breeze for clients. There’s a possibility that I missed the QR code feature.
Irrespective that got me looking into WireGuard extensions and I found a small handful of different portals which allow self service features, for instance wg-portal is what I currently have my eye on.
As wg-portal won’t be hosted on pfSense and instead slightly further inside my network, where best should an appliance be situated? Currently I have a DMZ and LAN.
LAN would be easiest as I wouldn’t have to add additional rules within pfSense between the WireGuard box and my internal LAN if it was positioned within my DMZ however that exposes a port direct from the internet into my LAN.
On the flip side placing it within the DMZ has network segmentation thus following best practice of defence in depth however comes with the down side of needing to configure those pfSense rules to access resources within the LAN.
In short, where is the ‘best practice’ location to install a VPN appliance within a segmented network?
Where does one go to find a consulting company for designing a network for a neighborhood or city? Essentially the physical topology.
I have researched but can't find much information or consulting companies that offer these types of services. Maybe my google-fu is off.
I have talked with companies who do boring for larger ISPs but they do not design the physical topology. I am not sure who else to ask.
Any help would be greatly appreciated. Located in US.
Is there anyway we can see the network topology from SSH? Example in packet tracer we can see what switch connects to another or a router that connects to another but in the wild we can’t see it as it should be as they are stacked up so with that being said is there anyway commands we can use to the topology as a whole ? I know we can use CDP on cisco devices and depending on the router configuration we can see it through sh ip route let me know if I exaplained it clearly. Please and thank you
Howdy folks,
Like usual here is another informative lesson for you in Networking. This lesson obviously focuses on Network Topologies.
In this lesson I explain exactly WHAT network topologies are for the folks that don't know yet and then I also list and explain the different types you get along with their benefits and drawbacks. At the end I also list some key considerations you need to be mindful of when working with network topologies.
Network topologies is definitely something you need to know and understand for the N10-008 exam but when it comes to real life, you notice you're only going to use some of these topologies like the Star in most cases. In some rare cases you might use Partial Mesh, Mesh or Hybrid but the other ones in the video are not something your likely to work with. Other ones in the video are purely listed and explained for exam purposes for the folks that need to write the exam :)
Hope this helps. Here is the lesson
Howdy folks,
Like usual here is another informative lesson for you in Networking. This lesson obviously focuses on Network Topologies.
In this lesson I explain exactly WHAT network topologies are for the folks that don't know yet and then I also list and explain the different types you get along with their benefits and drawbacks. At the end I also list some key considerations you need to be mindful of when working with network topologies.
Network topologies is definitely something you need to know and understand for the N10-008 exam but when it comes to real life, you notice you're only going to use some of these topologies like the Star in most cases. In some rare cases you might use Partial Mesh, Mesh or Hybrid but the other ones in the video are not something your likely to work with. Other ones in the video are purely listed and explained for exam purposes for the folks that need to write the exam :)
Hope this helps. Here is the lesson
I stumbled upon this great blog post from years ago by Chris Olah on Neural Networks,Manifolds and topology https://colah.github.io/posts/2014-03-NN-Manifolds-Topology/
Does anyone know any other good , preferably more recent resources on this topic?
