poor speed between VLANs

RouterOS General
1

Hi!
I have Mikrotik CRS312-4C+8GX switch and I faced with next issue:
config:

# model = CRS312-4C+8XG
/interface bridge
add ingress-filtering=no name=bridge vlan-filtering=yes
/interface vlan
add interface=bridge name=VLAN_100 vlan-id=100
add interface=bridge name=VLAN_200 vlan-id=200
/interface bridge port
add bridge=bridge ingress-filtering=no interface=ether1
add bridge=bridge ingress-filtering=no interface=ether2 pvid=200
add bridge=bridge ingress-filtering=no interface=ether3
add bridge=bridge ingress-filtering=no interface=ether4
add bridge=bridge ingress-filtering=no interface=ether5
add bridge=bridge ingress-filtering=no interface=ether6
add bridge=bridge ingress-filtering=no interface=ether7
add bridge=bridge ingress-filtering=no interface=ether8
add bridge=bridge ingress-filtering=no interface=combo4
add bridge=bridge interface=combo1
add bridge=bridge interface=combo2
add bridge=bridge interface=combo3
add bridge=bridge interface=VLAN_100 pvid=100
add bridge=bridge interface=VLAN_200 pvid=200
/ip neighbor discovery-settings
set discover-interface-list=!dynamic
/ip settings
set max-neighbor-entries=8192
/ipv6 settings
set disable-ipv6=yes max-neighbor-entries=8192
/interface bridge vlan
add bridge=bridge untagged=combo4 vlan-ids=1
add bridge=bridge tagged=bridge,ether1,ether3,ether4,ether5,ether6,ether7,ether8,combo1,combo2,combo3,combo4 vlan-ids=100
add bridge=bridge tagged=ether1,ether3,ether4,ether5,ether6,ether7,ether8,bridge,combo1,combo2,combo3,combo4 vlan-ids=1000
add bridge=bridge tagged=ether1,ether3,ether4,ether5,ether6,ether7,ether8,bridge,combo1,combo2,combo3,combo4 untagged=ether2 vlan-ids=200
/interface ovpn-server server
set auth=sha1,md5
/ip dhcp-client
add interface=VLAN_100
add interface=VLAN_200
/tool romon
set enabled=yes

speed between VM’s in the same VLAN (VLAN100->VLAN100, or VLAN200->VLAN200) is perfect - almost 10GB/s
but if I want to route traffic between VLAN’s like VLAN100->VLAN200 or VLAN200-> VLAN100 it limiting by 1GB/s for the same phisical mashines with allowing to have 10GB/s for the same VLAN,
could someone help me to understand what I am doing wrong?
Thanks

2

Your device is a switch, not router.

Having said that, you’re lucky. The config you show is not very complex and it should be possible to enable L3HW offloading. Read this manual: https://help.mikrotik.com/docs/display/ROS/L3+Hardware+Offloading

There’s an error in your config: don’t add interfaces vlan100 and vlan200 to bridge. You need to add IP addresses to those interfaces and configure clients to use appropriate IP addresses as gateways. Since the device currently uses dynamic IP addresses in both VLANs, I actually wonder which entity in your network actually does the routing between VLANs? I guess you have another (main?) router which is limited to 1Gbps.

As you can see, I was guessing a lot. So post a good description of your network (and not only the part you think it’s relevant), possibly a diagram (hand drawn picture would do nicely).

3

thank you so much!