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Using DCBX Protocol to Lower Costs
Data Center Bridging Capability Exchange (DCBX) protocol discovers the data center bridging (DCB) capabilities of connected peers. DCBX also advertises the capabilities of applications on interfaces by exchanging application protocol information through application type, length, and value (TLV) elements.
The advantage of configuring DCBX application protocol TLV exchanges is that incoming traffic on the interface is mapped to the appropriate application, receives the correct loss priority, and is placed in the output queue associated with the correct forwarding class.
This application-aware capability allows you to properly support any L2 or L4 application including the Internet Small Computer System Interface (iSCSI) and Fibre Channel over Ethernet (FCoE) applications. The convergence of technologies into a single fabric provides several benefits such as: using less space, generating less heat, using less electricity, requiring less knowledge, and performing less maintenance. It also provides greater granularity in control of bandwidth allocation to ensure bandwidth is used more effectively.
Ultimately this agility enables you to achieve greater IT efficiencies and lower your costs.
