Questions tagged [architecture]
For questions about network architecture, where it is a framework for the specification of a network's physical components and their functionality and configuration.
44 questions
0 votes
2 answers
95 views
IP Conflict and VPN-Based Overlay Network Setup over WAN / VPN Solutions for Sites with Overlapping IP Address Ranges
I want to ping from a computer located in SITE C to computers in SITE A and SITE B within the topology. One of my biggest challenges here is determining how to establish an overlay network over the ...
4 votes
3 answers
1k views
Does a router lookup in routing table twice for each packet?
A router structure would look like linecards all connected by a routing fabric(switchplane) so if a packet is received by a linecard it will remove the ethernet header then make changes to ip header ...
- 53
1 vote
1 answer
299 views
Is this the right way to expose VLANs through VPN (VPN server location)?
Starting from the following network topology: Internet --- ISP Cable Router --- Firewall --- Router --- rest of the network / multiple VLANs (port forwarding) | ...
- 111
1 vote
1 answer
403 views
OSPFv3 Convergence Issue between OPNSense & Cisco Router
I have been digging around the internet and have been trying to get IPv6 up and running on my lab. Here is my current layout: I have been trying to get OPNSense and the Cisco 1900 router to give each ...
1 vote
2 answers
81 views
Is packet transfer still possible, if the routers don't have the updated link cost information in the Bellman-Ford Algorithm?
In the Bellman-Ford Algorithm, the principle of "Good news travels fast but bad news travels slow" is implemented. So if the cost of the link between two routers is increased, then the ...
- 155
0 votes
1 answer
76 views
Federated vs segmented network
Forgive me if this is a ridiculous question but I am looking for some clarification on these 2 terms and how each one differs in term of security. My understanding is that a federated network is where ...
- 103
3 votes
2 answers
506 views
Networks theory: Layers, Services and Interfaces
I want to learn about computer networks from the bottom up. I don't really understand the nuances of networking layers, with books mentioning that layers provide services to layers above them, but the ...
- 133
0 votes
2 answers
1k views
Recommended switches and routers configurations for a building of 5 floors?
Just recently I had an interview for a network Engineer position. The interviewer asked me the following: You have a building of 5 floors, where each floor has around 30 employees. What is your way of ...
- 283
0 votes
1 answer
600 views
Is Hub the DMZ in a Spoke-Hub architecture?
In a spoke hub architecture, is the DMZ another spoke (I.e. peered to the hub), a stand-alone vent, or the hub itself (for example as a subnet)? This question is mostly for azure implementation.
- 3
1 vote
1 answer
884 views
Advice to correct and improve a network diagram
I need to build a "secure"-network diagram with Visio for my school. I already build it but I want to get some advise about it to tell me if I made some big mistake or if I can improve it. My diagram ...
- 11
9 votes
4 answers
737 views
Abstract language to describe network deployments?
Is there any more or less standard/spec that is, vendor neutral, for network configuration language? Say, a VPC with networks and virtual machines would become an XML or JSON file. Something like, &...
- 217
3 votes
2 answers
1k views
Spine and Leaf architecture with LACP
In a spine and leaf architecture with Link Aggregation between spine and leaves (active-active) like this: Do we have the same active-atcive link aggregation between the leaf and the server? Is the ...
- 31
2 votes
2 answers
1k views
How to connect high-availability routers to high-availability firewalls
I have two Juniper routers (a SRX340 and a SRX320), each with a leased line, on the same IP range. They are designed to be connected together on specific network ports so that the SRX320 takes over if ...
- 121
4 votes
1 answer
1k views
Architecture for management network in large data center?
I've read about data center network architectures - Fat-tree, Clos (or spine-leaf), DCell, BCube... None of these make any specific mention of the management network, which I expect would be out-of-...
- 43
2 votes
1 answer
139 views
network infrastructure configuration design in a openstack environment to enable instances to have a public IP as floating IP
Has anyone had an idea of what are the possible configuration design of a network infrastructure in an OpenStack environment to enable instances to have a public IP as a floating IP? An example below ...
- 123