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x70b1
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A slow CRS109

Thu Dec 01, 2016 1:40 am

Hello

I bought an CRS109-8G-1S-2HnD-IN. Then I started to play around. A bit Wifi, a bit Routing. It seems to work but it was slow.
So I simplified my setup. Now it works as a pure switch. Everything what isn't needed is disabled. Two ports are used. One for a client and one wire to my previous router.

But it is still slow. A speedtest show me that I got ~ 0.25mbit through the switch.
If I put my client directly behind the router I got ~ 12mbit. Thats what I get over my ADSL2 connection. This value is good.

Is there maybe a bad configuration in my switch or are there any other ideas what could be wrong?
The cpu is at 2%. There is no problem.

Cheers
 
kamillo
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Re: A slow CRS109

Thu Dec 01, 2016 11:49 am

Hi,

Have you checked speed/ duplex on interfaces? Do you have any firewall rules? Are you using bridges? Do the 2 ports belong to the same master port?
 
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normis
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Re: A slow CRS109

Thu Dec 01, 2016 12:16 pm

To be sure that you really set it up as a switch, please post your config
 
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x70b1
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Re: A slow CRS109

Thu Dec 01, 2016 12:51 pm

My link status is 1G. Looks ok.

Thats my config:
[admin@ap] > /export 
# dec/01/2016 11:47:06 by RouterOS 6.37.3
# software id = IL2B-MHDQ
#
/interface ethernet
set [ find default-name=ether2 ] master-port=ether1
set [ find default-name=ether3 ] disabled=yes
set [ find default-name=ether4 ] disabled=yes
set [ find default-name=ether5 ] disabled=yes
set [ find default-name=ether6 ] disabled=yes
set [ find default-name=ether7 ] disabled=yes
set [ find default-name=ether8 ] disabled=yes
set [ find default-name=sfp1 ] disabled=yes
/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g/n channel-width=20/40mhz-Ce distance=indoors frequency=auto mode=ap-bridge ssid=MikroTik-A7F116 wireless-protocol=802.11
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/ip dhcp-client
add dhcp-options=hostname,clientid disabled=no interface=ether1
/ip dns
set cache-max-ttl=1d1s
/ip service
set telnet disabled=yes
set ftp disabled=yes
set api disabled=yes
set winbox disabled=yes
set api-ssl disabled=yes
/lcd
set enabled=no
/lcd interface pages
set 0 interfaces=wlan1
/system clock
set time-zone-name=Europe/Berlin
/system identity
set name=ap
/system ntp client
set enabled=yes server-dns-names=0.de.pool.ntp.org,1.de.pool.ntp.org,2.de.pool.ntp.org,3.de.pool.ntp.org
/system routerboard settings
set protected-routerboot=disabled silent-boot=yes
/system watchdog
set watchdog-timer=no
/tool mac-server
set [ find default=yes ] disabled=yes
add
/tool mac-server mac-winbox
set [ find default=yes ] disabled=yes
add
 
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normis
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Re: A slow CRS109

Thu Dec 01, 2016 12:56 pm

Which ports are you plugged into now?
 
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x70b1
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Re: A slow CRS109

Thu Dec 01, 2016 12:58 pm

The ports ether1 and ether2. The other ports are disabled.
 
becs
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Re: A slow CRS109

Thu Dec 01, 2016 1:04 pm

What does "interface ethernet monitor ether1,ether2" command show?
 
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x70b1
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Re: A slow CRS109

Thu Dec 01, 2016 1:09 pm

What does "interface ethernet monitor ether1,ether2" command show?
This output:
[admin@ap] > /interface ethernet monitor ether1,ether2
                        name: ether1     ether2
                      status: link-ok    link-ok
            auto-negotiation: done       done
                        rate: 1Gbps      1Gbps
                 full-duplex: yes        yes
             tx-flow-control: no         no
             rx-flow-control: no         no
                 advertising: 10M-half   10M-half
                              10M-full   10M-full
                              100M-half  100M-half
                              100M-full  100M-full
                              1000M-half 1000M-half
                              1000M-full 1000M-full
    link-partner-advertising: 10M-half   10M-half
                              10M-full   10M-full
                              100M-half  100M-half
                              100M-full  100M-full
                              1000M-half 1000M-full
                              1000M-full 
-- [Q quit|D dump|C-z pause]

 
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x70b1
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Re: A slow CRS109

Thu Dec 01, 2016 9:39 pm

So there is obviously no config problem?
Maybe my hardware is broken and I should try a new device?

0.25mbit is very slow. Every porn stream would lag. Thats a mess (:
 
becs
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Re: A slow CRS109

Fri Dec 02, 2016 2:13 pm

This configuration is very simple and should not cause any performance issues.
Try to enable switching on different ports and do the same test.
 
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x70b1
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Re: A slow CRS109

Mon Dec 05, 2016 4:56 am

I tried the Mikrotik in an other setup. I got 100mbit routed through the box with a cpu usage between 15 and 30 percent.
That looks much better.

It seems there is an problem between my router (a Fritzbox) and the Mikrotik. I had never seen such a performance problem behind this Fritzbox. But the Mikrotik works also great.

At the moment I can't say what is realy wrong there. Maybe I need to drop my fritzbox out of the window.
But thanks for your help!
 
PeterEs
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Re: A slow CRS109

Mon May 15, 2017 9:34 pm

Hello x70b1,

I'm having the same issues as you describe with my fritzbox and my Mikrotik wAP ac. Did you have found an solution for this?

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