I have three MikroTik devices:
a) Mikrotik CCR-1009-8G-1S-1S+ ROS 6.19
b) Mikrotik RB2011UAS-2HnD with SFP module ROS 6.20
c) Mikrotik CRS-125-24G-1S ROS 6.19
They are connected A to B and A to C with leased fiber connection with tagged vlans - one per location. On site C is installed mediaconverter and it's connected to ether24, On site A those two vlans are going into one ethernet cable and goes to port ether2.
I'm using routing to connect this sites - between A and B I have adresses 172.18.0.0/30, between A and C 172.18.0.4/30.
Im having issues with performance of this setup - beeing behind each router I cant achieve more then 16mbps.
Strange thing is, that btests are working very well - I achieve 100% of speed on each site, both on UDP and TCP tests
On B and C sites NAT is disabled and there are few (just a bunch of) firewall rules, but after disabling them I cant see any difference.
I think, that problem might be in this VLAN setup on CCR or maybe different MTUs?
Between devices are some other switches, because it's not dedicated line, but just leased transmission.
- setting down MTU (to 1400) - without result
- changing default queue to ethernet-default on all three interfaces
Site B (with CRS):
/interface ethernet set [ find default-name=ether1 ] name=ether1-WAN-3s set [ find default-name=ether2 ] full-duplex=no name=ether2 speed=1Gbps set [ find default-name=ether3 ] name=ether3-virtual set [ find default-name=ether4 ] name=ether4-virtual2 set [ find default-name=ether5 ] name=ether5-nas set [ find default-name=ether6 ] name=ether6-virtual4 set [ find default-name=ether7 ] name=ether7 set [ find default-name=ether8 ] name=ether8-RB750 /interface vlan add interface=ether2 l2mtu=1584 name=vlan-2 vlan-id=1982 add interface=ether2 l2mtu=1584 name=vlan-1 vlan-id=2069 /interface bridge port add bridge=bridge-LAN interface=ether3-virtual add bridge=bridge-LAN interface=ether4-virtual2 add bridge=bridge-LAN interface=ether5-nas add bridge=bridge-LAN interface=ether6-virtual4 add bridge=bridge-LAN interface=ether8-RB750 /ip address add address=172.18.0.1/30 interface=vlan-1 network=172.18.0.0 add address=172.18.0.5/30 interface=vlan-2 network=172.18.0.4 /ip route add distance=1 dst-address=10.3.17.0/24 gateway=172.18.0.2 add distance=1 dst-address=10.3.20.0/24 gateway=172.18.0.6
Site C (with RB2011):
/interface ethernet set [ find default-name=ether24 ] name=ether24-swiatlo add interface=ether24-swiatlo l2mtu=1584 name=vlan-k vlan-id=2069 /ip address add address=10.3.17.1/24 interface=bridge-LAN network=10.3.17.0 add address=172.18.0.2/30 interface=vlan-kato network=172.18.0.0
What can I do more? On other environment RB2011 pushes around 200mbit+ with routing, queues, VLANs and EoIPs.
/interface ethernet set [ find default-name=sfp1 ] speed=100Mbps /interface vlan add interface=sfp1 l2mtu=1594 name=vlan1 vlan-id=1982 /ip address add address=10.3.20.1/24 interface=bridge-LAN network=10.3.20.0 add address=172.18.0.6/30 interface=vlan1 network=172.18.0.4
Thanks in advance!