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ME60 V800R010C10SPC500 Feature Description - WAN Access 01

This is ME60 V800R010C10SPC500 Feature Description - WAN Access
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Route Monitoring Group Fundamentals

Route Monitoring Group Fundamentals

All monitored network-side routes of the same type can be added to a route monitoring group. A down-weight can be set for each route in the route monitoring group based on link attributes, such as the bandwidth, and a threshold can be set for each service module that is associated with the route monitoring group to trigger a primary/backup access-side link switchover.
  • A route monitoring group monitors the status of its member routes. If a route in the group goes Down, its down-weight is added to the down-weight sum of the route monitoring group. If the down-weight sum of the route monitoring group reaches the threshold of a service module, the RM module notifies the service module to switch services from the primary link to the backup link.

  • If a route in the route monitoring group goes Up again, its down-weight is subtracted from the down-weight sum of the route monitoring group. If the down-weight sum of the route monitoring group falls below the threshold of a service module, the RM module notifies the service module to switch services back. You can specify the switchback delay time based on your actual network requirements.

As shown in Figure 12-1, the route monitoring group contains 10 routes, each having a down-weight of 10. The route monitoring group is associated with service modules A, B, C, and D whose thresholds for a primary/backup switchover are 80, 50, 30, and 20, respectively.
  • If two routes in the route monitoring group go Down, the RM module notifies service module D to switch services from the primary link to the backup link. If one more route goes Down, the RM module notifies service module C to perform a primary/backup link switchover. If five routes go Down, the RM module notifies service module B to perform a primary/backup link switchover. If the number of routes that go Down reaches eight, the RM module notifies service module A to perform a primary/backup link switchover.
  • If the number of routes that are Down in the route monitoring group falls below eight, the RM module notifies service module A to switch services back. If the number of routes that are Down in the route monitoring group falls below five, the RM module notifies service module B to switch services back. If the number of routes that are Down in the route monitoring group falls below three, the RM module notifies service module C to switch services back. If the number of routes that are Down in the route monitoring group falls below two, the RM module notifies service module D to switch services back.
Figure 12-1 Route monitoring group

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Updated: 2019-01-04

Document ID: EDOC1100059473

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