Kontron AT8404 CLI - Manual (Page 68)

Switching Commands AT8404
AT8404 CLI Reference Manual Page 2 - 32
2.4.5 show dvlan-tunnel
Use this command without the optional parameters to display all interfaces enabled for Double VLAN Tunneling.
Use the optional parameters to display detailed information about Double VLAN Tunneling for the specified interface
or all interfaces.
2.5 Voice VLAN Commands
This section describes the commands you use for Voice VLAN. Voice VLAN enables switch ports to carry voice
traffic with defined priority so as to enable separation of voice and data traffic coming onto the port. The benefits of
using Voice VLAN is to ensure that the sound quality of an IP phone could be safeguarded from deteriorating when
the data traffic on the port is high.
Also the inherent isolation provided by VLANs ensures that inter-VLAN traffic is under management control and that
network- attached clients cannot initiate a direct attack on voice components. QoS-based on IEEE 802.1P class of
service (CoS) uses classification and scheduling to sent network traffic from the switch in a predictable manner. The
system uses the source MAC of the traffic traveling through the port to identify the IP phone data flow.
2.5.1 voice vlan (Global Config)
Use this command to enable the Voice VLAN capability on the switch.
Mode • Privileged EXEC
• User EXEC
Term Definition
Interface Valid slot and port number separated by a forward slash.
Mode The administrative mode through which Double VLAN Tunneling can be enabled or disabled.
The default value for this field is disabled.
EtherType A 2-byte hex EtherType to be used as the first 16 bits of the DVLAN tunnel. There are three
different EtherType tags. The first is 802.1Q, which represents the commonly used value of
0x8100. The second is vMAN, which represents the commonly used value of 0x88A8. If
EtherType is not one of these two values, then it is a custom tunnel value, representing any
value in the range of 0 to 65535.
Format show dvlan-tunnel [interface { | all}]
Mode • Privileged EXEC
• User EXEC
Term Definition
Interface Valid slot and port number separated by a forward slash.
Mode The administrative mode through which Double VLAN Tunneling can be enabled or disabled.
The default value for this field is disabled.
EtherType A 2-byte hex EtherType to be used as the first 16 bits of the DVLAN tunnel. There are three
different EtherType tags. The first is 802.1Q, which represents the commonly used value of
0x8100. The second is vMAN, which represents the commonly used value of 0x88A8. If
EtherType is not one of these two values, then it is a custom tunnel value, representing any
value in the range of 0 to 65535.