User`s guide

Signamax 065-7931 16-Port 10/100/1000BaseT/TX WebSmart Switch

4-2-5. PVID Configuration

Function name:

PVID Configuration

Function description:

In VLAN Port VID Setting, the user can input the VID number to each port. The

range of valid VID numbers is from 1 to 4094. The user also can choose

ingress filtering rules for each port. There are two ingress filtering rules which

can be applied to the switch. Ingress Filtering Rule 1 is “forward only packets

with VID matching this port’s configured VID”. Ingress Filtering Rule 2 is “drop

untagged frame”.

Parameter description:

Port 1-16:

Port number.

PVID:

The valid PVID range is 1-4094. Before a number x is set as a PVID, a

Tag-based VLAN with VID x must be created. For example, if port x

receives an untagged packet, the switch will apply the PVID (assumed in

this example 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. Rule

1 can be applied as a way to use 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 whether to forward it

or not. For example, if port 1 receives a tagged packet with VID=100

(VLAN name=VLAN100), and if Rule 1 is 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. The user can configure a given port to accept all

frames (Tagged and Untagged) or just receive tagged frames. If the

former is the case, then both tagged and untagged packets will be

processed. If the latter is the case, only the packets carrying a VLAN tag

will be processed, and the rest of the 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, and the packet then

will be forwarded. But if the PVID of port 1 is not 100, the packet will be

dropped.

Tag:

This is an egress rule of the port. Valid rules are either “untag” or “tag”.

Tag means the outgoing packets must carry a VLAN tag header; select

this rule by ticking the check box (

;). Untag means the outgoing

packets carry no VLAN tag header.