90
Specifying the DSCP value for outgoing DNS
packets
The DSCP value of a packet specifies the priority level of the packet and affects the transmission priority
of the packet. A bigger DSCP value represents a higher priority.
To specify the DSCP value for outgoing DNS packets:
Step Command Remarks
1.
Enter system view.
system-view
N/A
2.
Specify the DSCP value
for outgoing DNS
packets.
•
DSCP value for IPv4 DNS packets:
dns dscp
dscp-value
•
DSCP value for IPv6 DNS packets:
ipv6 dns dscp
dscp-value
By default, the DSCP value for
outgoing DNS packets is 0.
The configuration is available on
DNS clients and DNS proxy
devices.
Displaying and maintaining IPv4 DNS
Execute
display
commands in any view and
reset
commands in user view.
Task Command
Display the domain name resolution
table.
display dns host
[
ip
|
ipv6
] [
vpn-instance
vpn-instance-name
]
Display IPv4 DNS server information.
display dns server
[
dynamic
] [
vpn-instance
vpn-instance-name
]
Display IPv6 DNS server information.
display ipv6 dns server
[
vpn-instance
vpn-instance-name
]
Display DNS suffixes.
display dns domain
[
dynamic
] [
vpn-instance
vpn-instance-name
]
Clear information about the dynamic
domain name cache.
reset dns host
[
ip
|
ipv6
] [
vpn-instance
vpn-instance-name
]
IPv4 DNS configuration examples
Static domain name resolution configuration example
Network requirements
As shown in
, the device wants to access the host by using an easy-to-remember domain name
rather than an IP address.
Configure static domain name resolution on the device so that the device can use the domain name
host.com to access the host whose IP address is 10.1.1.2.
Summary of Contents for MSR 2600 Series
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Page 33: ...18 AC vlan1 quit...
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