Differences between dual-homing diamond services and associated services

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Dual-homing diamond services have similar application scenarios to associated silver services originated from the same source. They differ in the number of managed services. Specifically, two services are managed for associated silver services, but only one ASON service needs to be managed for a dual-homing diamond service. Associated silver services originated from the same source can be converted into dual-homing diamond services.

Other related questions:
Rerouting policies of diamond services
The rerouting policies for diamond services are described as follows: Permanent 1+1 protection: Rerouting is triggered when either the working or protection LSP is interrupted. Rerouting 1+1 protection: Rerouting is triggered only when both the working and protection LSPs are interrupted. Flex P&R: In this rerouting policy, P indicates the number of protection times. R indicates the number of rerouting times. Before P is used up, rerouting is triggered when either the working or protection trail becomes faulty. After P is used up, rerouting is triggered only when both the working and protection LSPs become faulty. After R is used up, rerouting is stopped. Non-rerouting 1+1 protection. No rerouting is triggered upon interruption of LSPs regardless of the working or protection LSP. On the NMS, the configuration of electrical-layer ASON services depends on the rerouting policies. On the page for creating electrical-layer diamond services, the services can be configured by setting the Trigger Condition parameter in Routing Attributes . There are four types of trigger conditions: 1. Rerouting is triggered when any LSP is interrupted. 2. Rerouting is triggered when both LSPs are interrupted. 3. Rerouting is not triggered. 4. Rerouting is triggered based on the flex P&R protection policy.

Differences between "multirate service" and "any service"
"Multirate service" and "any service" are the same. They both indicate that the client side of the board supports services of multiple rates.

Associated services with different sources in ASON systems
Associated services with different sources can survive a single-point hardware failure but are difficult to maintain. Therefore, you are not advised to configure such services.

Differences between the firewall's applications and services
Services refer to well-known protocols or user-defined protocols. A service may be used by multiple applications. Therefore, applications are more fine-grained than services in security control. A service may contain multiple applications.

Service association in ASON
Service association is intended for some important services for which protection is required. Different from diamond services, service association allows service add and drop at different sites. Associated silver services with the same source support sharing of associated trails. When one of the associated services is interrupted, the rerouted trail will separate from the associated trail to ensure that the two trails do not completely overlap only when the trail sharing is disabled.

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