Operating and troubleshooting notes, Operating and troubleshooting notes -152 – HP 8000M User Manual
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Configuring the Switch
Class of Service (CoS): Managing Bandwidth More Effectively
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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
.