Setting The Dscp Value For Dhcp Packets; Displaying And Maintaining The Dhcp Relay Agent - HP 6125G Configuration Manual

Step
5. Configure
non-user-defined
Option 82.
6. Configure
user-defined Option
82.

Setting the DSCP value for DHCP packets

An IPv4 packet header contains an 8-bit Type of Service (ToS) field. As defined in RFC 2474, the first six
bits set the Differentiated Services Code Point (DSCP) value, and the last two bits are reserved. Network
devices use the DSCP value as a reference to determine the packet priority for transmission.
To set the DSCP value for DHCP packets:
Step
1. Enter system view.
2. Set the DSCP value for DHCP
packets sent by the DHCP relay
agent.

Displaying and maintaining the DHCP relay agent

Task
Display information about DHCP
server groups correlated to a
specified interface or all interfaces.
Command
•
Configure the padding format for
Option 82:
dhcp relay information format
{ normal | verbose [ node-identifier
{ mac | sysname | user-defined
node-identifier } ] }
•
Configure the code type for the
circuit ID sub-option:
dhcp relay information circuit-id
format-type { ascii | hex }
•
Configure the code type for the
remote ID sub-option:
dhcp relay information remote-id
format-type { ascii | hex }
•
Configure the padding content for
the circuit ID sub-option:
dhcp relay information circuit-id
string circuit-id
•
Configure the padding content for
the remote ID sub-option:
dhcp relay information remote-id
string { remote-id | sysname }
Command
system-view
dhcp dscp dscp-value
Command
display dhcp relay { all | interface
interface-type interface-number } [ | { begin |
exclude | include } regular-expression ]
42
Remarks
Optional.
By default,
•
The padding format for Option 82
is normal.
•
The code type for the circuit ID
sub-option depends on the padding
format of Option 82. Each field has
its own code type.
•
The code type for the remote ID
sub-option is hex.
The code type configurations for the
circuit ID sub-option and remote ID
sub-option apply to non-user-defined
Option 82 only.
Optional.
By default, the padding content
depends on the padding format of
Option 82.
Remarks
N/A
Optional.
By default, the DSCP value is 56.
Remarks
Available in any view