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eldite
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Hardware selection

Thu Jan 12, 2023 11:47 am

I love the Mikrotik gear. Currently have a CRS125-24G and a HAP AC3 (and about 10 other MT routers spread around family and friends places). Right now, the CRS125 is used as an internet router, as well as switch and just manages to route at ~1Gbps.

I want to upgrade our fibre to 2gbps. I'd have 4 devices needing 2Gbps+ ethernet. 2 x PCs, 1 x Hap Ax3, 1 x Fibre modem, and ideally another 12-20 ports at 1gbps.

There just doesn't seem to be anything that will do this. This https://mikrotik.com/product/crs328_4c_20s_4s_rm has the ports, but the routing is only 1.2Gbps.

I've been through all the gear, but can't find something suitable, or a combination of things suitable. So thought I would reach out and see if the community had any suggestions, or if there is anything known to be in development.

Thanks
 
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mkx
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Re: Hardware selection

Thu Jan 12, 2023 11:08 pm

ROS v7 brings L3 HW offloading (as in: ASIC routing) on select devices, CRS3xx included. Which means that in certain cases routing and firewalling can be done wirespeed. Have a look at linked document, you should get an idea. Depending on requirements on L3 functions you might be able to find a model which will fit your needs.

You may have to use two devices, one (mainly) for routing and one for switching (increase number of ports).
 
mada3k
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Re: Hardware selection

Fri Jan 13, 2023 1:11 pm

An Rb5009 for example.

How will this 2Gbit line be delievered? As a SFP+, 2.5G SFP or 1G 2xRJ45?
 
eldite
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Re: Hardware selection

Sun Jan 15, 2023 10:59 am

ROS v7 brings L3 HW offloading (as in: ASIC routing) on select devices, CRS3xx included. Which means that in certain cases routing and firewalling can be done wirespeed. Have a look at linked document, you should get an idea. Depending on requirements on L3 functions you might be able to find a model which will fit your needs.

You may have to use two devices, one (mainly) for routing and one for switching (increase number of ports).
This is really useful, thanks, I'm pretty sure I'll meet the requirements for HW offloading. Seems like some of those CRS3XX devices don't support fastpath, but do support L3 HW offloading.

The 2Gb pipe will come through ethernet.
 
mada3k
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Re: Hardware selection

Sun Jan 15, 2023 11:34 am

The 2Gb pipe will come through ethernet.
Yes but at what standard? A single 2.5GBase-T ?
 
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mkx
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Re: Hardware selection

Sun Jan 15, 2023 4:11 pm

Seems like some of those CRS3XX devices don't support fastpath, but do support L3 HW offloading.

If traffic is elligible for L3 HW offloading, then fastpath doesn't matter at all because traffic will not pass CPU. And fastpath is a feature which allows "to cut a few corners" when traffic is handled by CPU.
 
gotsprings
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Re: Hardware selection

Mon Jan 16, 2023 12:58 am

I am still stuck on a CRS125 routing at 1Gig???
 
djdrastic
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Re: Hardware selection

Mon Jan 16, 2023 6:47 am

Cries in 50/10 internet connection
 
mada3k
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Re: Hardware selection

Mon Jan 16, 2023 1:49 pm

I am still stuck on a CRS125 routing at 1Gig???
It's primarly a switch. If you can afford 2Gbps of Internet then you probably can afford a router that can handle it as well.

Cries in 50/10 internet connection
And I'm on 100/10. I can upgrade to 1000/100 but thats €89/month and simply not worth it.
 
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Re: Hardware selection

Mon Jan 16, 2023 5:47 pm

who needs whole preceding post to be quoted to be answered? Use "Post Reply"
We started phasing them out in 2018. Due to them not being able to route anywhere near 1Gig WAN to LAN, with any sort of firewall at all.

IF they stayed in the system, they were converted to Switches. Routing was handed off to RB3011/RB4011/hAP AC2s.
Last edited by BartoszP on Tue Jan 17, 2023 2:06 pm, edited 2 times in total.
Reason: removed excessive quotting of preceding post; be wise, quote smart, save network traffic
 
eldite
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Re: Hardware selection

Tue Jan 17, 2023 1:57 pm

who needs whole preceding post to be quoted to be answered? Use "Post Reply"
Yeah, everything has to go through fastpath to get the CRS125 to route acceptably, even then it maxes out around 850Mbps.

I'm in NZ and they're doing a deal on 2000/2000 connections, it's the equivalent of 76 EUR per month. Some people spend their money on fast cars, some spend it on fast internet....

I'm going to pick up a CRS309-1G-8S+IN and add it to the CRS125. Sounds like that will do it with HW Offloading.

Will let you know how I get on in a month or so. Thanks team.
Last edited by BartoszP on Tue Jan 17, 2023 2:06 pm, edited 2 times in total.
Reason: removed excessive quotting of preceding post; be wise, quote smart, save network traffic
 
mada3k
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Re: Hardware selection

Tue Jan 17, 2023 3:19 pm

For speeds over 100Mbps, you should buy a proper router, not a switch with limited CPU resources.

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