FD.io VPP
v20.09-64-g4f7b92f0a
Vector Packet Processing
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VXLAN GPE packet header structure. More...
Go to the source code of this file.
Data Structures | |
struct | vxlan_gpe_header_t |
VXLAN GPE Header definition. More... | |
Macros | |
#define | foreach_vxlan_gpe_protocol |
From draft-quinn-vxlan-gpe-03.txt. More... | |
#define | VXLAN_GPE_FLAGS_I 0x08 |
#define | VXLAN_GPE_FLAGS_P 0x04 |
#define | VXLAN_GPE_FLAGS_O 0x01 |
#define | VXLAN_GPE_VERSION 0x0 |
Enumerations | |
enum | vxlan_gpe_protocol_t { VXLAN_GPE_PROTOCOL_MAX } |
Struct for VXLAN GPE support inner protocol definition. More... | |
VXLAN GPE packet header structure.
Definition in file vxlan_gpe_packet.h.
#define foreach_vxlan_gpe_protocol |
From draft-quinn-vxlan-gpe-03.txt.
0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |R|R|R|R|I|P|R|O|Ver| Reserved |Next Protocol | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | VXLAN Network Identifier (VNI) | Reserved | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
I Bit: Flag bit 4 indicates that the VNI is valid.
P Bit: Flag bit 5 is defined as the Next Protocol bit. The P bit MUST be set to 1 to indicate the presence of the 8 bit next protocol field.
O Bit: Flag bit 7 is defined as the O bit. When the O bit is set to 1,
the packet is an OAM packet and OAM processing MUST occur. The OAM protocol details are out of scope for this document. As with the P-bit, bit 7 is currently a reserved flag in VXLAN.
VXLAN-gpe bits 8 and 9 are defined as version bits. These bits are reserved in VXLAN. The version field is used to ensure backward compatibility going forward with future VXLAN-gpe updates.
The initial version for VXLAN-gpe is 0.
This draft defines the following Next Protocol values:
0x1 : IPv4 0x2 : IPv6 0x3 : Ethernet 0x4 : Network Service Header [NSH] VXLAN GPE support inner protocol definition. 1 - IP4 2 - IP6 3 - ETHERNET 4 - NSH
Definition at line 67 of file vxlan_gpe_packet.h.
#define VXLAN_GPE_FLAGS_I 0x08 |
Definition at line 107 of file vxlan_gpe_packet.h.
#define VXLAN_GPE_FLAGS_O 0x01 |
Definition at line 109 of file vxlan_gpe_packet.h.
#define VXLAN_GPE_FLAGS_P 0x04 |
Definition at line 108 of file vxlan_gpe_packet.h.
#define VXLAN_GPE_VERSION 0x0 |
Definition at line 110 of file vxlan_gpe_packet.h.
enum vxlan_gpe_protocol_t |
Struct for VXLAN GPE support inner protocol definition.
1 - IP4 2 - IP6 3 - ETHERNET 4 - NSH 5 - IOAM
Enumerator | |
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VXLAN_GPE_PROTOCOL_MAX |
Definition at line 83 of file vxlan_gpe_packet.h.