Draytek VigorSwitch G2080, Руководство пользователя, Страница: 72 / 120

VigorSwitch G2080 User’s Guide 66
enabled, the switch will check if port 1 is a member of
VLAN100. If yes, the received packet is forwarded;
otherwise, the received packet is dropped.
Rule 2: Drop untagged frame. You can configure a given port to
accept all frames (Tagged and Untagged) or just receive
tagged frame. If the former is the case, then the packets with
tagged or untagged will be processed. If the later is the case,
only the packets carrying VLAN tag will be processed, the
rest packets will be discarded.
Note: If Rule 1 is enabled and port 1, for example, receives an untagged packet, the
switch will apply the PVID of port 1 to tag this packet, the packet then will be
forwarded. But if the PVID of port 1 is 100 and port 1 is not member of VLAN 100,
the packet will be dropped.
Role: This is an egress rule of the port. Here you can choose
Access, Trunk or Hybrid. Trunk means the outgoing packets
must carry VLAN tag header. Access means the outgoing
packets carry no VLAN tag header. If packets have double
VLAN tags, one will be dropped and the other will still be
left. As to Hybrid, it is similar to Trunk, and both of them
will tag-out. When the port is set to Hybrid, its packets will
be untagged out if the VID of the outgoing packets with tag
is the same as the one in the field of Untag VID of this port.
Untag VID: Valid range is 1~4094. It works only when Role is set to
Hybrid.
2
2
.
.
1
1
1
1
.
.
5
5
M
M
a
a
n
n
a
a
g
g
e
e
m
m
e
e
n
n
t
t
V
V
L
L
A
A
N
N
Function name:
Management VLAN
Function description: