Method used to select routing policies on an ASON network

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Various rerouting policies are provided on an ASON network and are selected based on the available system resources. When the resources are sufficient, diamond services can be used. As resources are continuously consumed, a user may have to select copper services to ensure that sufficient resources are provided for diamond services. Copper services are rarely used. Generally, only temporary services are configured as copper services.

Other related questions:
Method used to configure the routing policy on USG firewalls
The method used to configure the routing policy on USG2000, USG5000, and USG6000 is as follows: 1. Create a routing policy. 2. Configure the If-match sub-sentence. 3. Configure the Apply sub-sentence. 4. Filter the routes upon receiving, publishing, and introducing routes.

Reason why CSPF is used on ASON networks
Constraint Shortest Path First (CSPF) is a routing algorithm that calculates the optimal route for a service, ensuring that the service is quickly restored after rerouting.

Rerouting policy when ASON network resources are insufficient
Rerouting policy when ASON network resources are insufficient: When the resource of a link is insufficient, the VC4 service will be rerouted to a different link until there is no idle resources.

Whether a new route can be set as the original route on an OTN ASON network
Generally, a route created by the ASON software is the original route. When an original ASON route is changed, the new route can be set as the original route.

Method of configuring smart policy routing of an AR router
The method of configuring smart policy routing of an AR router is as follows: 1. Configure IP addresses of different interfaces. 2. Configure a static route. 3. Configure NQA instances. 4. Configure ACLs that differentiate service flows. 5. Configure routing parameters of smart policy routing on router A. 6. Configure service parameters of smart policy routing. For details about the configuration, see the URL: Example for Configuring SPR.

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