Data Center Bridging (Dcb); Ethernet Enhancements In Data Center Bridging - Dell S6100 Configuration Manual

Data center bridging (DCB) refers to a set of enhancements to Ethernet local area networks used in data center environments, particularly
with clustering and storage area networks.
Topics:
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Ethernet Enhancements in Data Center Bridging

• Enabling Data Center Bridging
• Data Center Bridging: Default Configuration
• Configuring Priority-Based Flow Control
• Configuring PFC in a DCB Map
• Applying a DCB Map on a Port
• Configuring PFC without a DCB Map
• Priority-Based Flow Control Using Dynamic Buffer Method
• Behavior of Tagged Packets
• SNMP Support for PFC and Buffer Statistics Tracking
• Performing PFC Using DSCP Bits Instead of 802.1p Bits
• Configuration Example for DSCP and PFC Priorities
• Using PFC to Manage Converged Ethernet Traffic
• Generation of PFC for a Priority for Untagged Packets
• Configure Enhanced Transmission Selection
• Hierarchical Scheduling in ETS Output Policies
• Using ETS to Manage Converged Ethernet Traffic
• Applying DCB Policies in a Switch Stack
• Configure a DCBx Operation
• Verifying the DCB Configuration
• QoS dot1p Traffic Classification and Queue Assignment
• Configuring the Dynamic Buffer Method
• Sample DCB Configuration
Ethernet Enhancements in Data Center Bridging
The following section describes DCB.
The device supports the following DCB features:
• Priority-based flow control (PFC)
• Enhanced transmission selection (ETS)
To configure PFC, ETS, and for DCB, refer to
DCB refers to a set of IEEE Ethernet enhancements that provide data centers with a single, robust, converged network to support multiple
traffic types, including local area network (LAN), server, and storage traffic. Through network consolidation, DCB results in reduced
operational cost, simplified management, and easy scalability by avoiding the need to deploy separate application-specific networks.
For example, instead of deploying an Ethernet network for LAN traffic, include additional storage area networks (SANs) to ensure lossless
Fibre Channel traffic, and a separate InfiniBand network for high-performance inter-processor computing within server clusters, only one

Data Center Bridging (DCB)

Sample DCB Configuration for the CLI configurations.
Data Center Bridging (DCB)
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