The priority command sets a priority for sending packets to the CPU.
The undo priority command deletes the configuration.
The default priority of protocol packets can be queried using the display cpu-defend statistics command.
priority { user-defined-flow flow-id | index index } { high | low | middle | be | af1 | af2 | af3 | af4 | ef | cs6 | cs7 }
priority { whitelist | blacklist } { high | low | middle | be | af1 | af2 | af3 | af4 | ef | cs6 | cs7 }
priority whitelist-v6 { high | low | middle | be | af1 | af2 | af3 | af4 | ef | cs6 | cs7 }
priority { tcpsyn | fragment } { high | low | middle | be | af1 | af2 | af3 | af4 | ef | cs6 | cs7 }
undo priority { tcpsyn | fragment }
undo priority { user-defined-flow flow-id | index index }
undo priority whitelist-v6
undo priority { whitelist | blacklist }
priority { arp | bfd | bgp | dhcp | dns-client | ftp-server | ftp-client | hwtacacs | icmp | igmp | isis | lacp | ldp | lspping | msdp | ntp | ospf | pim | radius | rip | rsvp | snmp | ssh-server | ssh-client | telnet-client | telnet-server | tftp | vrrp | bpdu | telnetv6-server | telnetv6-client | tftpv6-client | icmpv6 | dnsv6 | pimv6 | sshv6-server | ospfv3 | bgpv6 | ftpv6-client | ftpv6-server | syslog | 802.1ag | arp-miss | ipv4-fib-miss | ipv4-multicast-fib-miss | ipv4-ttl-expire | ipv6-fib-miss | ipv6-nd-miss | ipv6-ttl-expire | lldp | mpls-arp-miss | mpls-ttl-expire | eapol | netstream | rs | ra | ns | na | mld | dhcpv6 | snmpv6 | web | portal | web-auth-server | diameter | openflow | http-redirect-chasten | atm-inarp | unicast-vrrp | soft-gre | traffic-behavior-log | icmp-broadcast-address-echo | mka | web-auth-serverv6 } { high | middle | low | be | af1 | af2 | af3 | af4 | ef | cs6 | cs7 }
undo priority { arp | bfd | bgp | dhcp | dns-client | ftp-server | ftp-client | hwtacacs | icmp | igmp | isis | lacp | ldp | lspping | msdp | ntp | ospf | pim | radius | rip | rsvp | snmp | ssh-server | ssh-client | telnet-client | telnet-server | tftp | vrrp | bpdu | telnetv6-server | telnetv6-client | tftpv6-client | icmpv6 | dnsv6 | pimv6 | sshv6-server | ospfv3 | bgpv6 | ftpv6-client | ftpv6-server | syslog | 802.1ag | arp-miss | ipv4-fib-miss | ipv4-multicast-fib-miss | ipv4-ttl-expire | ipv6-fib-miss | ipv6-nd-miss | ipv6-ttl-expire | lldp | mpls-arp-miss | mpls-ttl-expire | eapol | netstream | rs | ra | ns | na | mld | dhcpv6 | snmpv6 | web | portal | web-auth-server | diameter | openflow | http-redirect-chasten | atm-inarp | unicast-vrrp | soft-gre | traffic-behavior-log | icmp-broadcast-address-echo | mka | web-auth-serverv6 }
| Parameter | Description | Value |
|---|---|---|
| high |
Indicates that the packets to be sent to the CPU enter a queue of a high priority. |
- |
| middle |
Indicates that the packets to be sent to the CPU enter a queue of a middle priority. |
- |
| low |
Indicates that the packets to be sent to the CPU enter a queue of a low priority. |
- |
| be |
Indicates that the packets to be sent to the CPU enter the BE queue of a low priority. |
- |
| af1 |
Indicates that the packets to be sent to the CPU enter the AF1 queue of a middle priority. |
- |
| af2 |
Indicates that the packets to be sent to the CPU enter the AF2 queue of a middle priority. |
- |
| af3 |
Indicates that the packets to be sent to the CPU enter the AF3 queue of a middle priority. |
- |
| af4 |
Indicates that the packets to be sent to the CPU enter the AF4 queue of a middle priority. |
- |
| ef |
Indicates that the packets to be sent to the CPU enter the EF queue of a middle priority. |
- |
| cs6 |
Indicates that the packets to be sent to the CPU enter the CS6 queue of a high priority. |
- |
| cs7 |
Indicates that the packets to be sent to the CPU enter the CS7 queue of a high priority. |
- |
| user-defined-flow flow-id |
Specifies the ID of a user-defined flow. |
The value is an integer ranging from 1 to 64. |
| index index |
Specifies the packet index. |
The value is an integer ranging from 35 to 1658. |
Usage Scenario
When queues are full of packets to be sent to the CPU, you can run the priority command to set a priority for sending packets in each queue to the CPU. In this manner, packets in the queue of a high priority are first sent to the CPU, thus saving CPU resources.
In VS mode, this command is supported only by the admin VS.