The DNS Cache Acceleration appliances support the configuration of DSCP (Differentiated Services Code Point) value for LAN1, LAN2, HA, MGMT, and VLAN interfaces. When the appliance is a member of an Infoblox Grid, the DSCP value for all interfaces is inherited from the Grid and you can override the DSCP value at the member level and at interface level. When you configure the DSCP value at the Grid or member level, all outgoing IP traffic on all interfaces uses the same value.
You can set the DSCP value for the primary LAN1 interface using the set network CLI command. For more information see the NIOS Documentation at docs.infoblox.com, CLI section. The DSCP values for all other interfaces and VLANs must be set through Grid Manager. For more information, see the NIOS Documentation at docs.infoblox.com. You can use the ping (-Q tos) and traceroute (-t tos) expert mode CLI commands, to prioritize all outgoing packets based on the DSCP value.

Configuring DSCP Value using CLI Commands

You can use the set network CLI command to set the DSCP value for the primary LAN1 interface.

Example: 

Infoblox > set network
NOTICE: All HA configuration is performed from the GUI. This interface is used only to
configure a standalone node or to join a grid.
Enter IP address:10.35.1.104
Enter netmask [Default: 255.255.255.0]:255.255.255.0
Enter gateway address [Default: 10.35.0.1]:10.35.0.1
Enter VLAN tag [Default: Untagged]:110
Enter DSCP value [Default: Inherited from Grid: 0]:25
Configure IPv6 network settings? (y or n):y
Enter IPv6 address [Default: none]: 2620:10A:6000:2400::168
Enter IPv6 Prefix Length [Default: none]: 64
Enter IPv6 gateway [Default: none]: 2620:10A:6000:2400::1
Enter VLAN tag [Default: Untagged]:110
Enter DSCP value [Default: Inherited from Grid: 0]:25
Become grid member? (y or n):

You can execute the show network command to view the DSCP values set for the primary LAN 1 interface.
Example:

Infoblox > show network
Current LAN1 Network Settings:
IP Address: 10.35.0.4
Network Mask: 255.255.0.0
Gateway Address: 10.35.0.1
VLAN Tag: 110
DSCP Value: 40
IPv6 Address: 2620:10A:6000:2400::4/64
IPv6 Gateway Address: 2620:10A:6000:2400::1
IPv6 VLAN Tag: 110
IPv6 DSCP Value: 40
HA enabled: false
Grid Status: Master of Infoblox Grid

Current Management Network Settings:
 Management Port enabled:          true
 Management IPv4 Address:          10.35.15.104
 Management Netmask:               255.255.255.0
 Management Gateway Address:       10.35.0.1
 Restrict Support and remote console access to MGMT port:      false