Znyx Networks bh5700 manual Overview of OpenArchitect Vlan Interfaces, Tagging and Untagging VLANs

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Overview of OpenArchitect VLAN Interfaces

A zhp device is associated with one VLAN. zhp may have one or more physical ports and their associated zre devices. A VLAN from the viewpoint of the switch is a logical mapping of ports based on intended use. The primary purpose of a VLAN is to isolate traffic and enable communication to flow more efficiently within groups of mutual interest. The switch is used to bridge from one VLAN to another. Figure 4.1: Fabric VLANs is an example of a custom layer2 VLAN network structure in a fabric switch.

Figure 4.1: Fabric VLANs

In the Figure 4.1, four VLANs for each fabric switch are used to organize traffic. This is just one example of how a layer 2 switch could be configured with the fabric switch.

Tagging and Untagging VLANs

The OpenArchitect switch is capable of switching VLAN tagged and untagged data packets. VLAN tagged packets conform to the 802.1q specification and the packet header contains an additional four bytes of VLAN tag information. A given port can be specified to accept VLAN tagged or untagged traffic. Internally, all traffic for a particular VLAN is treated as tagged traffic.

Ethernet Switch Blade User's Guide

release 3.2.2j

page 48

Page 48
Image 48
Znyx Networks bh5700 manual Overview of OpenArchitect Vlan Interfaces, Tagging and Untagging VLANs