X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fvxlan-gbp%2Fvxlan_gbp_packet.h;h=e655b333b89b012101bebfe02f72a71ffdf582f8;hb=282872127bbeee6ae59ab3f885c09bad601ee0cc;hp=33bccd6aed6d1771666f6082d756f572f58e5466;hpb=93cc3ee3b3a9c9224a1446625882205f3282a949;p=vpp.git

diff --git a/src/vnet/vxlan-gbp/vxlan_gbp_packet.h b/src/vnet/vxlan-gbp/vxlan_gbp_packet.h
index 33bccd6aed6..e655b333b89 100644
--- a/src/vnet/vxlan-gbp/vxlan_gbp_packet.h
+++ b/src/vnet/vxlan-gbp/vxlan_gbp_packet.h
@@ -63,6 +63,11 @@
  *   Group membership being encapsulated by VXLAN. Its value is source
  *   class id.
  *
+ * FOR INTERNAL USE ONLY
+ * R bit: Bit 12 of the initial word is defined as the reflection bit
+ *   Set on packet rx checked on tx and dropped if set. this prevents
+ *   packets recieved on an iVXLAN tunnel being reflected back to
+ *   another.
  */
 
 typedef struct
@@ -99,11 +104,14 @@ typedef enum
 #undef _
 } __attribute__ ((packed)) vxlan_gbp_flags_t;
 
+#define VXLAN_GBP_FLAGS_GI (VXLAN_GBP_FLAGS_G|VXLAN_GBP_FLAGS_I)
+
 #define foreach_vxlan_gbp_gpflags \
 _ (0x40, D)                       \
 _ (0x20, E)                       \
 _ (0x10, S)                       \
-_ (0x08, A)
+_ (0x08, A)                       \
+_ (0x04, R)
 
 typedef enum
 {