TCAM is getting exhausted.
Max TCAM table entries: 16384 = 15795+574+12 = 16381
Nexus 93180 programs routes in Pivot Tiles /TRIE and TCAM.
If the protocol route cannot be accommodated in any pivot tile, its added to TCAM.
TCAM serves as a scratchpad/temporary storage. As more and more routes get added to TCAM, if the free space in the TCAM falls below a threshold one of the following two things happen:
a. If Dynamic Pivot tile[s] exist, check is done to find prefix-length(say m) that has max number of routes in TCAM and is trie capable.
Because of hash collisions, some routes in this set might end up in the TCAM itself.
b. If no Dynamic Pivot tiles don't exist, re-accommodating is done until exhaustion.
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