Dell PowerEdge M IO Aggregator Manual de usuario descargar pdf (Pagina 35)

ETS settings, and apply the new map to the interfaces to override the previous DCB map settings.

Then, delete the original dot1p priority-priority group mapping.

If you delete the dot1p priority-priority group mapping (no priority pgid command) before you

apply the new DCB map, the default PFC and ETS parameters are applied on the interfaces. This

change may create a DCB mismatch with peer DCB devices and interrupt network operation.

Applying a DCB Map on a Port

When you apply a DCB map with PFC enabled on an S6000 interface, a memory buffer for PFC-enabled

priority traffic is automatically allocated. The buffer size is allocated according to the number of PFC-

enabled priorities in the assigned map.

To apply a DCB map to an Ethernet port, follow these steps:

Step Task Command Command Mode

Enter interface configuration mode on an

Ethernet port.

interface

{tengigabitEthernet slot/

port |

fortygigabitEthernet

slot/port}

CONFIGURATION

Apply the DCB map on the Ethernet port to

configure it with the PFC and ETS settings in

the map; for example:

Dell# interface tengigabitEthernet 0/0

Dell(config-if-te-0/0)# dcb-map

SAN_A_dcb_map1 Repeat Steps 1 and 2 to

apply a DCB map to more than one port.

You cannot apply a DCB map on an interface

that has been already configured for PFC using

thepfc priority command or which is

already configured for lossless queues (pfc

no-drop queues

command).

dcb-map name

INTERFACE

Configuring PFC without a DCB Map

In a network topology that uses the default ETS bandwidth allocation (assigns equal bandwidth to each

priority), you can also enable PFC for specific dot1p-priorities on individual interfaces without using a

DCB map. This type of DCB configuration is useful on interfaces that require PFC for lossless traffic, but

do not transmit converged Ethernet traffic.

Step Task Command Command Mode

1 Enter interface configuration mode on an

Ethernet port.

interface

{tengigabitEthernet

slot/port |

CONFIGURATION

Data Center Bridging (DCB)

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