Zyxel XS3900-48F [21/332] Bridging example

Chapter 1 Getting to Know Your Switch

XS3900-48F User’s Guide

• Set PFC to auto (Willing = True) if you want the Switch to accept PFC priority configuration from

another switch. In the following example, switch A sends its LLDP PDU with PFC TLV, local

priorities 3, 4, 5 and auto (Willing field is set to true, meaning it is willing to accept PFC priorities

from the peer). Switch B’s local priorities are 0 and 1 and Willing field is set to false, meaning it is

not willing to accept PFC priorities from the peer, switch A). Switch A will use switch B’s

configured priorities 0 and 1.

If both switches are configured to accept configuration (auto on both switches), then the

configuration of the switch with the lowest MAC address hex value sum is used.

• Verify configurations by displaying all port and Switch (local and peer) LLDP information. Local

port and Switch configuration and statistics can also be viewed.

Note: At the time of writing, DCB is configured using the Command Line Interface (CLI)

only. See the CLI reference guide for details and usage examples.

1.3 Bridging Example

In this example the Switch connects different company departments (RD and Sales) to the

corporate backbone. It can alleviate bandwidth contention and eliminate server and network

bottlenecks. All users that need high bandwidth can connect to high-speed department servers via

the Switch. You can provide a super-fast uplink connection by using the optional 10 Gigabit uplink

module on the Switch.

Figure 1 Bridging Application

Switch A LLDP PDU Switch B LLDP PDU

PFC TLV 3,4,5 Willing = True

PFC TLV 0,1 Willing = False

PFC TLV 0,1 Willing = True

Backbone

Sales