How do I set the delay for re-applying a routing policy

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The AR120&AR150&AR160&AR200&AR500&AR510&AR1200&AR2200&AR3200&AR3600 provides the following rules for processing changes of a routing policy:

After the command used to configure the routing policy changes, the RM module immediately notifies protocols of the change by default. You can run the route-policy-change notify-delay delay-time command to set the delay when the AR120&AR150&AR160&AR200&AR500&AR510&AR1200&AR2200&AR3200&AR3600 notifies protocols of re-applying a routing policy after the routing policy changes. The routing policy is re-applied after the delay.

-If the configuration of the routing policy changes again during the delay, the RM module resets the timer.
-If the routing policy is referenced by BGP, you can also run the refresh bgp all command to trigger BGP to apply the routing policy immediately during the delay.

Other related questions:
Where we can apply the policy route?
On the interface [HUAWEI] interface GigabitEthernet x/x/x [HUAWEI-GigabitEthernetx/x/x] traffic-policy test inbound On the VLAN [HUAWEI]vlan 100 [HUAWEI-vlan100] traffic-policy test inbound On the globe or slot. in the system-view, we can configure "traffic-policy policy-name global [ slot slot-id ] inbound".

Delay measurement
Path delay refers to the time from the source to the sink, which is measured using overheads. Delay measurement is used to measure the E2E bidirectional delay of ODUk signals. If ODUk SNCP protection is configured on the trail, the measurement result is the delay of the current working trail. The measurement process automatically inserts PM-layer delay measurement overhead bytes to the OTU board at the source end. The intermediate NEs transparently transmit the overhead bytes and the sink end loops back the overhead bytes. After the measurement is complete, the related configurations are automatically restored.

Traffic policy applications on S series switches
The following lists objects to which a traffic policy can be applied on S series switches (except the S1700): - S series fixed switches: A traffic policy can be applied to the system, an interface, or a VLAN. - S series modular switches: A traffic policy can be applied to the system, a card, an interface, or a VLAN. If a traffic policy is applied to the system, it takes effect for all the traffic specified by the matching traffic classifiers in the system. If a traffic policy is applied to an interface, a VLAN, or a card (only on a modular switch), it takes effect only for traffic specified by the matching traffic classifiers of the specified interface, VLAN, or card. Note: MQC cannot be configured on the S2700SI.

How to delete an applied traffic policy on an S series switch
For S series switches (except the S1700), a traffic policy that is not applied can be deleted directly. To delete a traffic policy that has been applied, unbind the traffic policy and then delete it. Example 1: The traffic policy p1 has been applied in the inbound direction of GE1/0/1. Run the following commands to delete the traffic policy p1: [HUAWEI] interface GigabitEthernet 1/0/1 [HUAWEI-GigabitEthernet1/0/1] undo traffic-policy p1 inbound [HUAWEI-GigabitEthernet1/0/1] quit [HUAWEI] undo traffic policy p1 Example 2: The traffic policy p2 has been applied in the inbound direction of VLAN 100. Run the following commands to delete the traffic policy p2: [HUAWEI] vlan 100 [HUAWEI-vlan100] undo traffic-policy p2 inbound [HUAWEI-vlan100] quit [HUAWEI] undo traffic policy p2 Example 3: The traffic policy p3 has been applied in the inbound direction of the card in slot 6. Run the following commands to delete the traffic policy p3: [HUAWEI] undo traffic-policy p3 global inbound slot 6 [HUAWEI] undo traffic policy p3 Example 4: The traffic policy p4 has been applied in the inbound direction of the system. Run the following commands to delete the traffic policy p4: [HUAWEI] undo traffic-policy p4 global inbound [HUAWEI] undo traffic policy p4 Before deleting a traffic policy, ensure that you have unbound the traffic policy completely. You can run the display traffic-applied command to check information about applied traffic policies. Note: MQC cannot be configured on the S2700SI.

How to set the delay in reporting interface status changes
Frequent physical status changes of an interface result in extra system costs. You can run the carrier {up-hold-time | down-hold-time} interval command in the interface view to set the delay in reporting interface status changes. The system is unaware of physical status changes of interfaces within the delay. If the interface physical status is not recovered after the delay expires, the physical status changes are reported to the system. # Set the delay in reporting an interface Up event to 1000 milliseconds on 10GE1/0/1. system-view [~HUAWEI] interface 10ge 1/0/1 [~HUAWEI-10GE1/0/1] carrier up-hold-time 1000 [*HUAWEI-10GE1/0/1] commit

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