NB3711 User Manual 4.0
VLAN Management
NetModule routers support Virtual LAN according to IEEE 802.1Q which can be used
to create virtual interfaces on top of an Ethernet interface. The VLAN protocol inserts
an additional header to Ethernet frames carrying a VLAN Identifier (VLAN ID) which
is used for distributing the packets to the associated virtual interface. Any untagged
packets, as well as packets with an unassigned ID, will be distributed to the native
interface.
Figure 5.8.: VLAN Management
In order to form a distinctive subnet, the network interface of a remote LAN host must be
configured with the same VLAN ID as defined on the router. Further, 802.1P introduces
a priority field which influences packet scheduling in the TCP/IP stack.
The following priority levels (from lowest to highest) exist:
Parameter
VLAN Priority Levels
0
Background
1
Best Effort
2
Excellent Effort
44
Содержание NB3711
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