SMC Networks TigerAccess SMC7816M Manual de usuario descargar pdf (Pagina 843)

100

101

33-1

HAPTER

LASS

ERVICE

OMMANDS

The commands described in this section allow you to specify which data

packets have greater precedence when traffic is buffered in the switch due

to congestion. This switch supports CoS with eight priority queues for

each port. Data packets in a port’s high-priority queue will be transmitted

before those in the lower-priority queues. You can set the default priority

for each interface, the relative weight of each queue, and the mapping of

frame priority tags to the switch’s priority queues.

Priority Commands (Layer 2)

This section describes commands used to configure Layer 2 traffic priority

on the switch.

Table 33-1 Priority Commands

Command Groups Function Page

Priority (Layer 2) Configures default priority for untagged frames,

sets queue weights, and maps class of service tags

to hardware queues

33-1

Priority (Layer 3 and 4) Maps TCP ports, IP precedence tags, or IP

DSCP tags to class of service values

33-11

Table 33-2 Priority Commands (Layer 2)

Command Function Mode Page

Global Priority Settings

priority bits Sets priority bits in the VLAN tag of

packets sent by the CPU

GC 33-2

queue mode Sets the queue mode to strict priority,

Weighted Round-Robin (WRR), or hybrid

GC 33-3

1 2 ... 838 839 840 841 842 843 844 845 846 847 848 ... 961 962

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