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-rw-r--r--src/vnet/bier/bier.api3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/vnet/bier/bier.api b/src/vnet/bier/bier.api
index f7a13e4705b..6f88732aba9 100644
--- a/src/vnet/bier/bier.api
+++ b/src/vnet/bier/bier.api
@@ -221,7 +221,8 @@ define bier_disp_table_details
/** \brief BIER Disposition Entry Add / del
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
- @param bde_bp - The Bit-position value for the entry
+ @param bde_bp - The Bit-position value for the entry, i.e. the sender's
+ Use 0 for the default (match any source) entry.
@param bde_tbl_id - The BIER dispositiontable-id the route is added in
@param bde_next_hop_sw_if_index - the nextop interface
@param bde_is_add - Is this a route add or delete