Information

While Q-SYS no longer validates switches (as testing is done at the University of New Hampshire InterOperability Laboratory), the Cisco SG350 switch can be set with the following suggested settings for Q-LAN or AES67 traffic.

• Make certain IEEE Green Power/Cable Length detection is turned off for the switch.
• Jumbo Frames should not be enabled.
• In Quality of Service -> General -> QoS Properties, select the QoS mode option of Basic and select the Apply button.
• Quality of Service -> General -> Queue -> select Strict Priority for all of the available Queues
• Quality of Service -> General -> DSCP to Queue -> set all Queues to 1, then adjust to the following and press the Apply button:
  • If the design is set for Q-LAN
    • 46(EF)     = 7 (or the highest sometimes 5)
    • 34(AF41) = 6 (or the second highest)
    • 26(AF31) = 5 (or the third highest)
    • all others leave at Output Queue of 1
  • If the design is set for Audinate
    • 56(CS7)  = 7 (or the highest sometimes 5)
    • 46(EF)     =6 (or the second highest)
    • 26(AF31) = 5 (or the third highest)
    • 8(CS1)   = 5 (or the third highest)
    • all others leave at Output Queue of 1
• Quality of Service -> QoS Basic Mode -> Global Settings -> Select Trust Mode: DSCP then Apply
• Quality of Service -> QoS Basic Mode -> Interface Settings -> Verify all ports are set to Enabled
• Multicast -> IPv4 Multicast Confiuration -> IGMP Snooping -> IGMP Snooping Status set to  Enabl
• Multicast -> IPv4 Multicast Confiuration -> IGMP Snooping -> IGMP Querier Status set to  Enable and press Apply
• Multicast -> IPv4 Multicast Confiuration -> IGMP Snooping -> select the radio button for the VLAN and press Edit. Make certain:
  • IGMP Snooping Status = Enabled
  • MRouter Ports Auto Learn = Enabled
  • Immediate Leave = Enabled
  • Last Member Query Counter = Use Query Robustness
  • IGMP Querier Status = Enabled
  • IGMP Querier Election = Enabled
  • IGMP Querier Version = V2
  • Querier Source IP address = User Defined <IP Address of the Switch>
  • Press Apply.
• Administration -> File Management -> File Operations -> Operation Type = Duplicate, Source File Name = Running Configuration, Destination File Name = Startup Configuration, press Apply.