Quality of Service (QoS): Managing Bandwidth More Effectively

QoS Messages in the CLI

Operating and Troubleshooting Notes

For Devices that Do Not Support 802.1Q Tagged VLANs: For communication between these devices and the switch, connect the device to a switch port configured as Untagged for the VLAN in which you want the device’s traffic to move.

VLAN Tagging Rules: For a port on the switch to be a member of a VLAN, the port must be configured as either Tagged or Untagged for that VLAN. (Only one VLAN on a port can be untagged. Otherwise, the switch cannot determine which VLAN should receive untagged VLAN traffic.)

Loss of Communication on a Tagged VLAN: If you cannot commu­ nicate with a device in a tagged VLAN environment, ensure that the device either supports tagged VLANs or is connected to a VLAN port that is configured as Untagged.

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