Avaya 580 - Manual (Page 694)

25-20 User Guide for the Avaya P580 and P882 Multiservice Switches, v6.1
Chapter 25
Setting a Physical Port to Mask DiffServ Bits
CLI Command Use the set port mask-diffserv command to mask the three least significant
bits of the DSCP when the switch is using the DSCP to classify bridged IP
traffic. If you mask the three least significant bits of the DSCP, the switch
recognizes the remaining bits as the precedence field of the type of service
(TOS) field and classifies the packets accordingly.
The syntax of this command is:
(configure)# set port mask-diffserv {{ |
range>} [..., { | }] | all-ports} {on | off}
Example To set all ports on the module in slot 3 to mask the three least significant bits
of the DSCP, enter:
set port mask-diffserv 3 on
Table 25-11. Keywords, Arguments, and Options
Keyword, Argument or
Option Definition
The slot number of a module. If you specify
, all ports on the module mask
the three least significant bits of the DSCP.
The slot number of a module, and, either a
port number, or a range of port numbers
having the format Px-Py. For example:
• To specify port 1 on the module in slot
3, enter 3/1.
• To specify ports 1 through 5 on the
module in slot 3, enter 3/1-5.
If you specify , the port
or range of ports on the module that you
specify mask the three least significant bits of
the DSCP.
{all-ports} All ports in the chassis. If you enter all-ports,
all ports in the chassis are set to mask the
three least significant bits of the DSCP.
{on | off} Indicates whether the switch masks the three
least significant bits of the DSCP:
• Enter on to mask the bits.
• Enter off to not mask the bits.
The default setting is off.