QOS for RB2011

Hi!

I have an RB2011 in a remote location with OS v6.43.7. Presently, it’s being used as a switch in a private MPLS network for audio traffic using a Comrex Bric Ao/IP codec. I have a bridge setup with an IP address and each end device has a static IP. I am able to hit my network with no problems and can also connect to other audio codecs, but when analyzing performance, I see significant packet loss from the remote location using the microtik. I’m pretty sure the issue will be resolved implementing QoS, but I’m not familiar enough to configure on a mikrotik. I do have experience configuring Cisco routers and switches. I’m aware it’s a two pronged process: marking and queue tree and attempted to configure myself, but did not succeed. Below are the commands I attempted. Some relevant information to know: the bandwidth of our location is 2MB and port numbers needed are udp 9000 and 9001. I’ve also added the config file. Any insight is much appreciated. Thanks!

/ip firewall mangle
add chain=prerouting action=mark-connection new-connection-mark=COMREX port=9000-9001 protocol=udp passthrough=yes comment=“COMREX”
add chain=prerouting action=mark-packet connection-mark=COMREX new-packet-mark=COMREX passthrough=no

/queue tree
add name=DOWN max-limit=1.8M parent=LAN bucket-size=0.01 queue=default
*this is where I ran into trouble. Received an error parent didn’t match

\

may/26/2020 10:52:11 by RouterOS 6.43.7

software id = M3GQ-TA6Y

model = 2011UiAS

serial number = 7DD60A1A5E7A

/interface bridge
add name=bridge1_Vlan1
/interface ethernet
set [ find default-name=sfp1 ] name=sfp1_LAN
/interface vlan
add interface=sfp1_LAN name=vlan1 vlan-id=1
/interface list
add name=WAN
add name=LAN
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/interface bridge port
add bridge=bridge1_Vlan1 interface=sfp1_LAN
add bridge=bridge1_Vlan1 interface=ether1
add bridge=bridge1_Vlan1 interface=ether2
add bridge=bridge1_Vlan1 interface=ether3
add bridge=bridge1_Vlan1 interface=ether4
add bridge=bridge1_Vlan1 interface=ether5
add bridge=bridge1_Vlan1 interface=ether7
add bridge=bridge1_Vlan1 interface=ether8
add bridge=bridge1_Vlan1 interface=ether6
/interface list member
add interface=ether1 list=WAN
add interface=ether2 list=LAN
add interface=ether3 list=LAN
add interface=ether4 list=LAN
add interface=ether5 list=LAN
add interface=ether6 list=LAN
add interface=ether7 list=LAN
add interface=ether8 list=LAN
add interface=ether9 list=LAN
add interface=ether10 list=LAN
add interface=sfp1_LAN list=LAN
/ip address
add address=10.110.36.130/28 interface=ether2 network=10.110.36.128
/ip firewall mangle

bad new packet mark

add action=mark-packet chain=prerouting comment=COMREX passthrough=yes port=
9000-9001 protocol=udp

bad new packet mark

add action=mark-packet chain=prerouting connection-mark=COMREX passthrough=no
/ip route
add distance=1 gateway=10.110.36.129
/system clock
set time-zone-autodetect=no time-zone-name=US/Eastern
/system identity
set name=KSC-MPLS-Switch
kscconfig0526.cfg.txt (1.67 KB)