lib/vxlan.h

   1 /* VxLAN common header.
   2  * Copyright (C) 2016, 2017 Cumulus Networks, Inc.
   3  *
   4  * This file is part of FRR.
   5  *
   6  * FRR is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2, or (at your option) any
   9  * later version.
  10  *
  11  * FRR is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with FRR; see the file COPYING.  If not, write to the Free
  18  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19  * 02111-1307, USA.
  20  */
  21
  22 #ifndef __VXLAN_H__
  23 #define __VXLAN_H__
  24
  25 #ifdef __cplusplus
  26 extern "C" {
  27 #endif
  28
  29 /* VxLAN Network Identifier - 24-bit (RFC 7348) */
  30 typedef uint32_t vni_t;
  31 #define VNI_MAX 16777215 /* (2^24 - 1) */
  32
  33 /* Flooding mechanisms for BUM packets. */
  34 /* Currently supported mechanisms are head-end (ingress) replication
  35  * (which is the default) and no flooding. Future options could be
  36  * using PIM-SM, PIM-Bidir etc.
  37  */
  38 enum vxlan_flood_control {
  39         VXLAN_FLOOD_HEAD_END_REPL = 0,
  40         VXLAN_FLOOD_DISABLED,
  41         VXLAN_FLOOD_PIM_SM,
  42 };
  43
  44 #ifdef __cplusplus
  45 }
  46 #endif
  47
  48 #endif /* __VXLAN_H__ */