Chelsio Communications Terminator 6, Installation And User Manual, Page: 217 / 432

Chapter XIII. Data Center Bridging (DCB)
Chelsio Unified Wire for Linux 217
Software/Driver Configuration and Fine-tuning
4.1. Configuring Cisco Nexus 5010 switch
Configuring the DCB parameters
In this procedure, you may need to adjust some of the parameters to suit your environment, such
as VLAN IDs, Ethernet interfaces, and virtual Fibre Channel interfaces.
To enable PFC, ETS, and DCB functions on a Cisco Nexus 5010 series switch:
i. Open a terminal configuration setting.
switch# config terminal
switch(config)#
ii. Configure qos class-maps and set the traffic priorities: NIC uses priority 0 and FcoE uses
priority 3.
switch(config)#class-map type qos class-nic
switch(config-cmap-qos)# match cos 0
switch(config-cmap-qos)# class-map type qos class-fcoe
switch(config-cmap-qos)# match cos 3
iii. Configure queuing class-maps.
switch(config)#class-map type queuing class-nic
switch(config-cmap-que)#match qos-group 2
iv. Configure network-qos class-maps.
switch(config)#class-map type network-qos class-nic
switch(config-cmap-nq)#match qos-group 2
By default, the Cisco Nexus switch enables DCB functionality and configures PFC
for FCoE traffic making it no drop with bandwidth of 50% assigned to FCoE class of
traffic and another 50% for the rest (like NIC). If you wish to configure custom
bandwidth, then follow the procedure below.
Note