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Cisco Bug: CSCuq67047 - N7K: PIM6-3-M6RIB_ADD_ROUTE failure on LC reload with 200 PIM neighbors

Last Modified

Jul 05, 2018

Products (1)

  • Cisco Nexus 7000 Series Switches

Known Affected Releases

7.1(0)D1(0.246)

Description (partial)

Symptom:
When a module is the only one with PIM6 enabled on it interfaces and it connects to a large number of PIM6 neighbors with a large number of groups per neighbor, then reloading the module can cause subsequent PIM6 interactions with M6RIB to fail permanently, causing traffic loss.

Conditions:
The problem was only seen with 200 PIM6 neighbors on the module and 40 groups per neighbor. It was not seen with 30 groups per neighbor.
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