CRS-106-1C-5S Speed Question

RouterOS Beginner Basics
1

Hello Everyone,

I’m a complete neophyte to Mikrotik so I’m sure this is a simple configuration issue that I’m too dense to catch. I have a CRS-106-1C-5S that I setup on my bench. It’s combo port is hooked up to a Cisco switch for upstream, pulling DHCP. Originally when I did a speedtest I was only getting ~20Mbps. The same Ethernet gives my workstation ~850 Mbps.

Searching the Internet I discovered fast path on the Wiki. So when I setup those rules, I am now up to ~220 Mbps. I’m wondering if there’s anything else I can do. CPU usage looks pretty good. My configuration is incredibly basic. I’m not even running DHCP except on the ethernet combo port.

[admin@MikroTik] > export 
# 2024-03-07 13:47:10 by RouterOS 7.13.5
# software id = 8GGX-K3DC
#
# model = CRS106-1C-5S
# serial number = HEN08XW7YY4
/interface bridge
add admin-mac=48:A9:8A:F2:BF:48 auto-mac=no comment=defconf name=bridge
/interface list
add name=WAN
add name=LAN
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/ip hotspot profile
set [ find default=yes ] html-directory=hotspot
/port
set 0 name=serial0
/interface bridge port
add bridge=bridge comment=defconf disabled=yes interface=combo1
add bridge=bridge comment=defconf interface=sfp1
add bridge=bridge comment=defconf interface=sfp2
add bridge=bridge comment=defconf interface=sfp3
add bridge=bridge comment=defconf interface=sfp4
add bridge=bridge comment=defconf interface=sfp5
/interface list member
add interface=combo1 list=WAN
add interface=bridge list=LAN
/ip address
add address=192.168.88.1/24 comment=defconf interface=bridge network=192.168.88.0
/ip dhcp-client
add interface=combo1
/ip firewall filter
add action=fasttrack-connection chain=forward connection-state=established,related hw-offload=yes
add action=accept chain=forward connection-state=established,related
/ip firewall nat
add action=masquerade chain=srcnat out-interface-list=WAN
#error exporting "/ip/ssh" (timeout)
/system clock
set time-zone-name=America/Chicago
/system note
set show-at-login=no
[admin@MikroTik] >
2

But those 220 Mbps are in switching or in routing?
More or less they are what you can expect in routing, check test results:
https://mikrotik.com/product/CRS106-1C-5S
269 Mbps with no rules.
If switching, there is a problem.

3

It’s routing config … and CRS devices (the whole line of models) are essentially switches.

4

I knew it was something basic. After redoing my configuration based on your advice, I am now getting much better speeds - 820 Mbps is the end result without fast path. Just bridging my uplink to and my downlink so the Mikrotek acts a dumb switch.

Now my question is - will the speeds continue if I add VLAN tags and attempt to make it a smart switch, not don’t try to do any actual routing?

5

Your reply came in while I was typing mine above. That’s actually the perfect use case. I don’t really need a dns masq or anything above layer 2 really. I’m trying to dip my toe into Mikrotik, and slowly ease myself out of Cisco. But, the learning curve is a bit different.

6

The speeds will keep high if you configure VLANs in a specific way, tailored for CRS1xx/CRS2xx switches: https://help.mikrotik.com/docs/pages/viewpage.action?pageId=103841836

7

I believe this you tube video may help you with your problem.

https://youtu.be/swXS4sO8smE?si=FLjr_yvvbSeXWsGZ

8

Thank you all for your help and suggestions. I’m zooming - 980 Mbps w/VLANs on the ports. I knew it was something simple with me just being unfamiliar with the infrastructure. The Hex I purchased is easily handling actual routing since I now know to actually read the datasheet.

Again - thank you all for your pointers.