Until now I had two routers (RB3011UiAS-RM) and one switch (CRS326-24G-2S+RM) In my home-setup to achieve at least a bit of redundancy and of course to familiarize with the topic and networking. I used VRRP and connected one cable from each router to the same bridge on the switch.
Now I have two routers (RB3011UiAS-RM) and two switches (CRS326-24G-2S+RM).
What are the possible ways to achieve more redundancy for the devices which have at least two network interfaces like servers and storages?
I thought about the following layout but I am not sure if it makes sense and I think there might be a better way.
Is tremendous excessive for a home setup, is used more power to failover than regular traffic.
And if WAN go down, no failover?
Have you thought about what happens in the event of roditors, kids, pets, lightning, fires, floods, earthquakes, hurricanes, riots, solar wind, etc.?
It is, without a single doubt, over-engineered. As I stated I want to learn about it and it is kind of my hobby so I don’t waste any thoughts about “Do I really need it?”. I need it because I want it.
Of course I do have single point of failures here like my WAN uplink.
With a HA concept I at least have in my head I can mitigate the effects of applying updates on my network equipment.
Do you have any idea on to how to achieve this?
CRS switches have no concepts of stacking, VSS/virtual-stacking or some for of multi-chassis anything.
In the real world, your servers/blades/chassis will be connected simply onto a stack/pair of devices with minimum 2 links of 10G / 40G / 100G and often in a “Portchannel” config. Done.
Mikrotik lacks just about any of these features
Without such features you are stuck toying around with spanning-tree etc when multiple L2-links are involved and let them switchover when 1 of the switches goes dead.
Yesssss, do not update anything. If it work, why update?®
On real thing, put passive optics between WAN and Server, done.
Till you have one single point of failure (WAN) can’t be better.
You never need to “upgrade” fiber components. Really.
But, back to your schema, MPLS/OSPF is the solution.