User Manual
Publi catio n dat e: Januar y, 2005
Revision A1
61
4-2-5. PVID Config uration
Func tion na me:
PVID Configuration
Func tion de scrip tion:
In VLAN Port VID Setting, user can input VID number to each port. The range
of VID number is from 1 to 4094. User also can choose ingress filtering rules
to each port. There are two ingress filtering rules which can be applied to the
switch. The Ingress Filtering Rule 1 is “forward only packets with VID matching
this port’s configured VID”. The Ingress Filtering Rule 2 is “drop untagged
frame”.
Parameter description:
Port 1-16:
Port nu mber.
PVID:
This PVID range will be 1-4094. Before you set a number x as PVID, you
have to create a Tag-based VLAN with VID x. For example, if port x
receives an untagged packet, the switch will apply the PVID (assume as
VID y) of port x to tag this packet, the packet then will be forwarded as
the tagged packet with VID y.
Rule 1:
Forward only packets with VID matching this port’s configured VID. You
can apply Rule 1 as a way to a given port to filter unwanted traffic. In
Rule 1, a given port checks if the given port is a member of the VLAN on
which the received packet belongs to, to determine forward it or not. For
example, if port 1 receives a tagged packet with VID=100 (VLAN
name=VLA N100), and if Rule 1 is enabl ed, the switch will check i f 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 wit h 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 switc h will apply th e PVID of port 1 to tag this pa cket, the packet t hen will
be forward ed. But if the PVID of po rt 1 is not 100, the packet will be dropped.
Tag:
This is an egress rule of the port. Here you can choose untag or tag. Tag
means the outgoing packets must carry VLAN tag header, just tick the
check box (;). Untag means the outgoing packets carry no VLAN tag
header.