Configure a Multilink and Link Services Drop Timeout Period

By default, the drop timeout parameter is disabled. You can configure a drop timeout value to provide a recovery mechanism if individual links in the multilink or link services bundle drop one or more packets. Make sure the value you set is larger than the expected differential delay across the links, although drop timeout is not a differential delay tolerance setting, and does not limit the overall latency. You can configure differential delay tolerance for link services interfaces only. For more information, see Configure Link Services Differential Delay.

To configure the drop timeout value, include the drop-timeout statement at the [edit interfaces ml-fpc/pic/port unit logical-unit-number] or [edit interfaces ls-fpc/pic/port unit logical-unit-number] hierarchy level:

drop-timeout milliseconds; 

For link services interfaces, you also can configure the drop timeout value at the physical interface level also by including the drop-timeout statement at the [edit interfaces ls-fpc/pic/port mlfr-uni-nni-bundle-options] hierarchy level:

[edit interfaces ls-fpc/pic/port mlfr-uni-nni-bundle-options]

drop-timeout milliseconds;

The drop timer has the duration of 0 through 2000 ms. Values less than 5 ms are not recommended; a value of 0 disables the timer.

For multilink or link services interfaces, if a packet or fragment encounters an error condition and is destined for a disabled bundle or link, it does not contribute to the dropped packet and frame counts in the per-bundle statistics. The packet is counted under the global error statistics and is not included in the global output bytes and output packet counts. This unusual accounting happens only if the error conditions are generated inside the multilink interface, not if the packet encounters errors on the wire or elsewhere in the network.