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-rw-r--r--src/vnet/bier/bier.api2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/vnet/bier/bier.api b/src/vnet/bier/bier.api
index fb6923b4a01..da2989bbe44 100644
--- a/src/vnet/bier/bier.api
+++ b/src/vnet/bier/bier.api
@@ -72,6 +72,8 @@ define bier_table_details
@param br_is_add - Is this a route add or delete
@param br_is_replace - Are the paths specfied replacing those already
present or are they to be combined.
+ is_replace = 1 and n_paths=0 implies delete the
+ route and all paths;
@param br_n_paths - The number of paths
@param br_paths - The array of paths
*/