Bonding multi ISP with CRS312-4C+8XG-RM?

RouterOS Beginner Basics
1

I purchased a CRS312-4C+8XG-RM, mainly for its 10G capabilities. I have two ISP lines coming into the office, I was wondering could I put it to 2nd use to bond the two connections for a faster overall connection? I did try, following guides on YouTube but they were a couple of years old and had a different GUI, so had no success.

Is it possible on this hardware?

2

Yes you can…
Take a look here : https://wiki.mikrotik.com/wiki/Manual:PCC

3

Be aware that the CRS products are intended to be L2 switches with limited L3 performance. You might achieve a few hundred Mb throughput, performance figures are here https://mikrotik.com/product/crs312_4c_8xg_rm#fndtn-testresults

4

With 2 ISPs that technically isn’t bonding, it’s load sharing. As this is done on L3 level, warning by @tdw should be taken with all seriousness.

5

Aggree with previous posts as well…
This model can do about 200 Mbps in routing mode…

6

Thanks for the responses!

To clarify, let’s say I have 100Mb down on ISP A and 100Mb down on ISP B

I want the results that Device C on the output of the MikroTik gets 200Mb

I don’t have 200 devices who I’d like to each get 1Mb down

So with the above information, is the correct term Bonding, or load sharing?

There is a software service called Speedify. I tried it and it worked, I even paid for it. But then performance went downhill rapidly and I got a refund.

For reference, I will end up “summing” (as I don’t know the right term yet as above…) a 900Mb down and a 500Mb down and a 350Mb down… so hoping for a stable ~1.5Gb down at peak times. Two ISP lines are DOCSIS 3.0, the other is a FTTP.

7

It is called Load Balancing…
Yes you could get 200Mbit…

8

Thanks!

OK so to load balance 3 inputs giving 1 output of 1.5Gb, what MikroTik hardware do I need?

p.s. any way to subscribe to thread updates on this forum?

9

Load balancing is not about taking a complete sum of your Inputs… However as i told you in my previous post it can be done..
This can and will cause problems however in certain websites and not only…
You can have a look here as well https://wiki.mikrotik.com/wiki/How_PCC_works_(beginner)

10

Thanks again,

maybe I should re-phrase my question,

I want the fastest download speed possible by combining the output from multiple (ISP) routers.

What hardware is required and what software feature of said hardware is the best fit for this purpose, to ensure reliability (uptime) and compatibility (works on all website as if using a single ISP source)?

Automatic WAN failover if one ISP line goes down would be a bonus.

11

I wil give you a model as an example, that is the RB301. It is the simplest choice you could make.
Under the test results page https://mikrotik.com/product/RB3011UiAS-RM#fndtn-testresults you can see on the last line
Routing 25 ip filter rules 202.0 2,453.1 204.1 836.0 188.4 96.5
it can achieve about 800Mbps…
Here you can also find all the Ethernet Routes https://mikrotik.com/products/group/ethernet-routers…
As for the Software, all Mikrotiks run the same… All the rest depend on the configuration you must manually do…