Web / SNMP Intelligent Products
WGSW-800 8-Port Gigabit Ethernet SwitchAppendix A VLAN Description and Examples
Packets received by the switch will be treated in the following way with regard to the Switch's VLAN settings:
Two examples of for setting up VLANs will be given. Example 1 will step through a simple two group VLAN setup. Example 2 will step through a more elaborate setup illustrating all possible scenarios for a comprehensive understanding of tagged VLANs.
Example 1:
- In the VLAN Administration page, add a new VLAN to the list, shown below as "New" with a VLAN ID value of 2.
- In the VLAN Membership page, use the space bar to toggle matrix until, the desired ports are all members of the selected VLAN.
- To allow untagged packets to participate in the 'New' VLAN, make sure to change the Port VLAN IDs for the relevant ports. To access the Port VLAN ID page hit Ctrl-V. Use the space bar to add an 'X' indicating which PVID is assigned to which port.
Example 2:
- Setup the following VLANs:
- Configure the VLAN membership has follows:
- Setup the Port VLAN IDs as follows (note that port one PVID is set to 2. This must be done in the port specific page since there is no VLAN with ID 2):
The specific ports above have the following Port VLAN ID settings (The Port VLAN ID settings for each port are configured in their respective Port Configuration page or by hitting Ctrl-V in the VLAN Membership page):
Port 01: 2 Port 05: 10
Port 02: 1 Port 06: 10
Port 03: 1 Port 07: 10
Port 04: 1 Port 08: 10
The following scenarios will produce results as described below:
- If an untagged packet enters Port 4, the switch will tag it with a VLAN tag value of 1. Since Port 4 does not have membership with VLAN ID 1 (named "default"), the packet will be dropped.
- If a tagged packet with a VLAN tag value 5 enters Port 4, the packet will have access to Ports 3 and 1. If the packet leaves Port 3 and/or 1, it will be stripped of its tag becoming an untagged packet as it leaves the switch.
- If an untagged packet enters Port 1, the switch will tag it with a VLAN tag value of 2. It will then be dropped since Port 1 has no membership with VLAN ID 2.
- If a tagged packet with a VLAN tag value 10 enters Port 5, it will have access to Ports: 1, 6, 7, and 8. If the packets leave Ports 1 or 6, they will be tagged with a VLAN ID value of 10. If the packet leaves Ports 7 or 8, it will leave as an untagged packet.
- If a tagged packet with a VLAN tag value 1 enters Port 5, it will be dropped since Port 5 does not have membership with VLAN ID 1.
[Top of this Chapter] | ![]() |
![]() |
![]() |
Copyright (c) 2000, Planet Technology
Corp.