Set (router) priority tos, Set (router) priority tos -134 – Black Box COMPACT T1 MT850A User Manual

Page 218

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5-134

Compact T1 - Release 6.1

CLI Commands

set

set (router) priority tos

Use the set (router) priority tos command to configure parameters that will be used to
recognize routed voice packets which will be handled with higher priority over other routed
data.

For each IP datagram to be routed, the TOS byte from the IP header will be logically AND’d
with the configured TOS mask and compared to the TOS match value. If they match, the
datagram will be handled with a greater priority than other routed data but with lower priority
than its own VoIP data. This command takes effect immediately.

Syntax:

set {cmg_card-addr} priority tos {disable|mask-value

match-value}

Example:

set 5 priority tos oxfc oxb8.

{cmg_card-addr}

The slot number (1-6) that contains the CMG Router card.

{disable|mask-value match-value}

The following table contains the appropriate TOS mask and match for various IP precedence
and DiffServ code points:

disable

Disable (default), will result in no priority handling of routed voice
packets

mask-value

Mask to be applied to the TOS byte in the IP header. In the format of
0x (2 hex digits)

match-value

TOS byte match value. In the format of 0x (2 hex digits).

IP Precedence

Mask

TOS

DiffServ Codepoint

Mask

TOS

IP Precedence = 0

0xE0

0x00

EF = 101110

0xFC

0xB8

IP Precedence = 1

0xE0

0x20

AF11 = 001010

0xFC

0x28

IP Precedence = 2

0xE0

0x40

AF12 = 001100

0xFC

0x30

IP Precedence = 3

0xE0

0x60

AF13 = 001110

0xFC

0x38

IP Precedence = 4

0xE0

0x80

AF21 = 010010

0xFC

0x48

IP Precedence = 5

0xE0

0xA0

AF22 = 010100

0xFC

0x50

IP Precedence = 6

0xE0

0xC0

AF23 = 010110

0xFC

0x58

IP Precedence = 7

0xE0

0xE0

AF31 = 011010

0xFC

0x68

AF32 = 011100

0xFC

0x70

AF33 = 011110

0xFC

0x78

AF31 = 100010

0xFC

0x88

AF32 = 100100

0xFC

0x90

AF33 = 100110

0xFC

0x98

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