Sunfire B1600 manual Web Interface Displaying Basic Vlan Information

page 3-114.) You should also determine security boundaries in the network and disable GVRP on end-station ports where you need to prevent advertisements from being propagated, or forbid ports from joining restricted VLANs.

Note – If you have host devices that do not support GVRP, you must configure static VLANs for the switch ports connected to these devices (as described in “Adding Static Members to VLANs” on page 3-50). But you still need to enable GVRP on these edge switches, as well as on the core switches in the network.

■If you want to create a small port-based VLAN for devices attached directly to a single switch, you can assign ports to the same untagged VLAN. However, to participate in a VLAN group that crosses several switches, you need to create a VLAN for that group and enable tagging on all ports.

Ports can be assigned to multiple tagged or untagged VLANs. Each port on the switch is therefore capable of passing tagged or untagged frames. When forwarding a frame from this switch along a path that contains any VLAN-aware devices, the switch should include VLAN tags. When forwarding a frame from this switch along a path that does not contain any VLAN-aware devices (including the destination host), the switch must first strip off the VLAN tag before forwarding the frame. When the switch receives a tagged frame, it will pass this frame onto the VLAN(s) indicated by the frame tag. However, when this switch receives an untagged frame from a VLAN-unaware device, it first decides where to forward the frame, and then inserts a VLAN tag reflecting the ingress port’s default VID.

3.3.1.1Displaying Basic VLAN Information

When displaying basic VLAN information using the web interface or CLI, the following parameters are displayed:

■VLAN Version Number – The VLAN version used by this switch as specified in the IEEE 802.1Q standard.

■Maximum VLAN ID – The maximum VLAN ID recognized by this switch.

■Maximum Number of Supported VLANs – The maximum number of VLANs that can be configured on this switch.

Web Interface: Displaying Basic VLAN Information

●Open the Switch Config ⇒ VLANs window.

Chapter 3 General Management of the Switch 3-41