D-Link DXS-3400 Emulator - Page 181
ccm interval
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DXS-3400 Series Lite Layer 3 Stackable 10GbE Managed Switch CLI Reference Guide mode {software | hardware} Parameters software hardware Specifies that the MA works in the CFM software mode. Specifies that the MA works in the CFM hardware mode. Default By default, this option is software. Command Mode CFM MA Configuration Mode. Command Default Level Level: 12. Usage Guideline The CFM hardware mode is used to improve the performance of the CCM process. In the CFM hardware mode, the CCM packet is processed by hardware and in general does not need to involve the CPU. In addition, the CCM interval can be set to the lowest value of 3.3ms which is not supported in the CFM software mode due to the CPU capability constraints. The CFM hardware and software mode can be used together. The user can configure an MA as the CFM hardware mode. Then, all MEPs in the MA will be working in the CFM hardware mode. For some MAs, if the performance of the CCM process is considered, e.g. requiring 3.3ms and 10ms CCM interval, and the MEPs in the MA are down MEPs, the user can use the CFM hardware mode; For other MAs, if the performance of the CCM process is not a problem, or up MEPs and MIPs need to be set up, or full CFM function are required, the CFM software mode is a better choice. Example This example shows how to configure the CFM MA mode. Switch#configure terminal Switch(config)#cfm domain op-domain level 2 Switch(config-cfm-md)#cfm ma name op1 Switch(config-cfm-ma)#mode hardware Switch(config-cfm-ma)# 15-10 ccm interval This command is used to configure the CCM interval for an MA. Use the no form of this command to revert to the default setting. ccm interval INTERVAL no ccm interval Parameters INTERVAL Specifies the CCM interval. It can be one of the following values. 3.3 ms: 3.3 milliseconds. This can only work in the CFM hardware mode. 10 ms: 10 milliseconds. This can only work in the CFM hardware mode. 177
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