Kontron AT890X Full-Size CLI Manual de usuario descargar pdf (Pagina 178)

Quality of Service (QoS) Commands AT8901/2/3

AT8901/2/3 CLI Reference Manual Page 4 - 12

Default none

Format

match ip dscp <dscpval>

Mode Class-Map Config

4.3.12 match ip precedence

This command adds to the specified class definition a match condition based on the

value of the IP Precedence field in a packet, which is defined as the high-order three

bits of the Service Type octet in the IP header (the low-order five bits are not checked).

The precedence value is an integer from 0 to 7.

NOTE: The IP DSCP, IP Precedence, and IP ToS match conditions are alter-

native ways to specify a match criterion for the same Service Type

field in the IP header, but with a slightly different user notation.

Default none

Format

match ip precedence <0-7>

Mode Class-Map Config

4.3.13 match ip tos

This command adds to the specified class definition a match condition based on the

value of the IP TOS field in a packet, which is defined as all eight bits of the Service

Type octet in the IP header. The value of

<tosbits> is a two-digit hexadecimal

number from 00 to ff. The value of

<tosmask> is a two-digit hexadecimal number from

00 to ff. The

<tosmask> denotes the bit positions in <tosbits> that are used for

comparison against the IP TOS field in a packet. For example, to check for an IP TOS

value having bits 7 and 5 set and bit 1 clear, where bit 7 is most significant, use a

<tosbits> value of a0 (hex) and a <tosmask> of a2 (hex).

NOTE: The IP DSCP, IP Precedence, and IP ToS match conditions are alter-

native ways to specify a match criterion for the same Service Type

field in the IP header, but with a slightly different user notation.

NOTE: This “free form” version of the IP DSCP/Precedence/TOS match spec-

ification gives the user complete control when specifying which bits of

the IP Service Type field are checked.

Default none

Format

match ip tos <tosbits> <tosmask>

Mode Class-Map Config

4.3.14 match protocol

This command adds to the specified class definition a match condition based on the

value of the IP Protocol field in a packet using a single keyword notation or a numeric

value notation.

To specify the match condition using a single keyword notation, the value for <

protocol-

name> is one of the supported protocol name keywords. The currently supported values

are:

icmp, igmp, ip, tcp, udp. A value of ip matches all protocol number values.

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