HP Cisco Nexus 5000 Cisco MDS 9000 Family CLI Configuration Guide - Release 4. - Page 1357

Chapter 56 Configuring Fabric Congestion Control and QoS QoS Send documentation comments to [email protected] To enable or disable the FCC feature, follow these steps: Step 1 Step 2 Command switch# config t switch(config)# fcc enable switch(config)# no fcc enable Purpose Enters configuration mode. Enables FCC in this switch. Disables FCC in this switch (default). Assigning FCC Priority To assign FCC priority, follow these steps: Step 1 Step 2 Command switch# config t switch(config)# fcc priority 2 Purpose Enters configuration mode. Defines the FCC priority threshold to have a priority of 2-0 is the lowest priority and 7 is the highest priority. Displaying FCC Settings Use the show fcc command to view FCC settings (see Example 56-1). Example 56-1 Displays Configured FCC Information switch# show fcc fcc is disabled fcc is applied to frames with priority up to 4 QoS QoS implementation in the Cisco MDS 9000 Family follows the differentiated services (DiffServ) model. The DiffServ standard is defined in RFCs 2474 and 2475. All switches support the following types of traffic: • About Control Traffic, page 56-4 • Enabling or Disabling Control Traffic, page 56-4 • Displaying Control Traffic Information, page 56-4 • About Data Traffic, page 56-5 • VSAN Versus Zone-Based QoS, page 56-6 • Configuring Data Traffic, page 56-6 • QoS Initiation for Data Traffic, page 56-7 • About Class Map Creation, page 56-7 • Creating a Class Map, page 56-7 • About Service Policy Definition, page 56-8 • Specifying Service Policies, page 56-9 OL-18084-01, Cisco MDS NX-OS Release 4.x Cisco MDS 9000 Family CLI Configuration Guide 56-3