Chelsio Communications Chelsio T5 Guida Utente Scaricare il pdf (Pagina 162)

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Chapter X. FCoE PDU Offload Target

Chelsio T5/T4 Unified Wire For Linux Page 162

3. Software/Driver Configuration and Fine-tuning

3.1. Configuring Cisco Nexus 5010 switch

3.1.1. 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 5000 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

Refer the following sections only if you wish to configure the FCoE PDU Offload

Target in FCF mode.

Note

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

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