SmartLink 4020 User Manual
MTU Size
MTU (Maximum Transfer Unit) Size
The size limit (bytes) of the packet for all outgoing packets.
WAN VLAN Configuration
The SmartLink 4020 can mark outgoing Ethernet frames on the WAN interface with VLAN and priority tags.
Other devices on the LAN can use the tags to control how frames from the SmartLink 4020 are processed. All
data leaving the SmartLink 4020 will be marked with the specific value unless overridden on the telephony
VLAN configuration settings.
Figure 11. WAN VLAN Configuration section of the Settings window
VLAN Tag (IEEE 802.1q)
WAN
IEEE 802.1q Ethernet VLAN tag for all outgoing packets on WAN Ethernet interface. The value should be
between 0 and 4094.
Priority Tag (IEEE 802.1q)
WAN
IEEE 802.1q Ethernet Priority tag for all outgoing packets on WAN Ethernet interface. The value should be
between 0 and 7.
Saving your work
When you are finished configuring the VLAN settings, click the
page 34) to save all changes.
Settings
Figure 10. MTU section of the Settings window
4 • Network—WAN
button (see
Save Internet Settings
figure 9
on
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