Dell Networking S6000 Uživatelský manuál stáhnout pdf (Strana 273)

100

101

PRIORITY to PG mapping (PRIO2PG) is on the ingress for each port. By default, all priorities are mapped

to PG7. A priority for which PFC has to be generated is assigned to a PG other than PG7 (say PG6) and

buffer watermark is set on PG6 so as to generate PFC.

In ingress, the buffers are accounted at per PG basis and would indicate the number of the packets that

has ingress this port PG but still queued up in egress pipeline. However, there is no direct mapping

between the PG and Queue.

Packet is assigned an internal priority on the ingress pipeline based on the queue to which it is destined.

This Internal-priority to Queue mapping has been modified and enhanced as follows for S6000:

Table 16. Priority to Queue Mapping

Internal-

priority

0 1 2 3 4 5 6 7

Queue

2 0 1 3 4 5 6 7

Default dot1p to queue configuration is as follows:

Table 17. Dot1p to Queue Mapping

Packet-

Dot1p

0 1 2 3 4 5 6 7

Queue

2 0 1 3 4 5 6 7

PFC and ETS Configuration Examples

This section contains examples of how to configure and apply DCB input and output policies on an

interface.

Using PFC and ETS to Manage Data Center Traffic

The following shows examples of using PFC and ETS to manage your data center traffic.

In the following example:

• Incoming SAN traffic is configured for priority-based flow control.

• Outbound LAN, IPC, and SAN traffic is mapped into three ETS priority groups and configured for

enhanced traffic selection (bandwidth allocation and scheduling).

• One lossless queue is used.

Data Center Bridging (DCB)

273

1 2 ... 268 269 270 271 272 273 274 275 276 277 278 ... 985 986

Komentáře k této Příručce

Žádné komentáře

Dell Networking S6000 Uživatelský manuál Strana 273

Komentáře k této Příručce

Související produkty a manuály pro Software Dell Networking S6000