The ipv6 route prefix-priority-scheduler command sets the scheduling ratio of IPv6 routes by priority.
The undo ipv6 route prefix-priority-scheduler command restores the scheduling ratio of IPv6 routes by priority to the default value.
By default, the scheduling ratio of IPv6 routes by priority is 8:4:2:1.
ipv6 route prefix-priority-scheduler critical-weight high-weight medium-weight low-weight
undo ipv6 route prefix-priority-scheduler
| Parameter | Description | Value |
|---|---|---|
| critical-weight | Specifies the scheduling weight value of a critical queue. | The value is an integer ranging from 1 to 10. |
| high-weight | Specifies the scheduling weight value of a high queue. | The value is an integer ranging from 1 to 10. |
| medium-weight | Specifies the scheduling weight value of a medium queue. | The value is an integer ranging from 1 to 10. |
| low-weight | Specifies the scheduling weight value of a low queue. | The value is an integer ranging from 1 to 10. |
Usage Scenario
With the integration of networks, it is strongly required that services be differentiated. Some IPv6 routes may be used to guide the forwarding of key services such as Voice over IP (VoIP) services, video conference services, and multicast services. Carriers require the IPv6 routes for key services to be converged more quickly than other routes. Therefore, the system needs to converge IPv6 routes based on their convergence priorities to improve network reliability.
Different IPv6 routes can be set with different convergence priorities, which can be critical, high, medium, and low listed in descending order. Critical is the highest convergence priority; low is the lowest convergence priority. The system converges IPv6 routes based on the scheduling weights of convergence priorities proportionally to guide service forwarding.
To prevent network performance from being affected in case low-preference routes are not processed for a long time when a large number of high-preference IPv6 routes are being processed, the ipv6 route prefix-priority-scheduler command can be used to set the scheduling ratio of IPv6 routes by priority.
Follow-up Procedure
Generally, the IPv6 route preference is determined by the route type. The ipv6 prefix-priority (IS-IS) command can be used to set convergence priorities for IS-IS routes on an IS-IS network.