vxlan.c File Reference

VXLAN. More...

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Macros
#define	foreach_copy_field
#define	foreach_copy_ipv4
#define	foreach_copy_ipv6

Functions
static u8 *	format_decap_next (u8 *s, va_list *args)
u8 *	format_vxlan_tunnel (u8 *s, va_list *args)
static u8 *	format_vxlan_name (u8 *s, va_list *args)
static uword	dummy_interface_tx (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static clib_error_t *	vxlan_interface_admin_up_down (vnet_main_t *vnm, u32 hw_if_index, u32 flags)
	VNET_DEVICE_CLASS (vxlan_device_class, static)
static u8 *	format_vxlan_header_with_length (u8 *s, va_list *args)
	VNET_HW_INTERFACE_CLASS (vxlan_hw_class)
static int	vxlan4_rewrite (vxlan_tunnel_t *t)
static int	vxlan6_rewrite (vxlan_tunnel_t *t)
int	vnet_vxlan_add_del_tunnel (vnet_vxlan_add_del_tunnel_args_t *a, u32 *sw_if_indexp)
static u32	fib4_index_from_fib_id (u32 fib_id)
static u32	fib6_index_from_fib_id (u32 fib_id)
static uword	unformat_decap_next (unformat_input_t *input, va_list *args)
static clib_error_t *	vxlan_add_del_tunnel_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static clib_error_t *	show_vxlan_tunnel_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
clib_error_t *	vxlan_init (vlib_main_t *vm)

Variables
vxlan_main_t	vxlan_main
static vlib_cli_command_t	create_vxlan_tunnel_command
	(constructor) VLIB_CLI_COMMAND (create_vxlan_tunnel_command) More...
static vlib_cli_command_t	show_vxlan_tunnel_command
	(constructor) VLIB_CLI_COMMAND (show_vxlan_tunnel_command) More...

Detailed Description

VXLAN.

VXLAN provides the features needed to allow L2 bridge domains (BDs) to span multiple servers. This is done by building an L2 overlay on top of an L3 network underlay using VXLAN tunnels.

This makes it possible for servers to be co-located in the same data center or be separated geographically as long as they are reachable through the underlay L3 network.

You can refer to this kind of L2 overlay bridge domain as a VXLAN (Virtual eXtensible VLAN) segment.

Definition in file vxlan.c.

Macro Definition Documentation

#define foreach_copy_field

Value:

_(vni)                                          \
_(encap_fib_index)                              \
_(decap_next_index)

Definition at line 119 of file vxlan.c.

#define foreach_copy_ipv4

Value:

{                     \
  _(src.ip4.as_u32)                             \
  _(dst.ip4.as_u32)                             \
}

Definition at line 124 of file vxlan.c.

#define foreach_copy_ipv6

Value:

{                     \
  _(src.ip6.as_u64[0])                          \
  _(src.ip6.as_u64[1])                          \
  _(dst.ip6.as_u64[0])                          \
  _(dst.ip6.as_u64[1])                          \
}

Definition at line 129 of file vxlan.c.

Function Documentation

static uword dummy_interface_tx ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 79 of file vxlan.c.

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static u32 fib4_index_from_fib_id ( u32  fib_id )

static

Definition at line 377 of file vxlan.c.

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static u32 fib6_index_from_fib_id ( u32  fib_id )

static

Definition at line 389 of file vxlan.c.

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static u8* format_decap_next ( u8 *  s, va_list *  args  )

static

Definition at line 37 of file vxlan.c.

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static u8* format_vxlan_header_with_length ( u8 *  s, va_list *  args  )

static

Definition at line 106 of file vxlan.c.

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static u8* format_vxlan_name ( u8 *  s, va_list *  args  )

static

Definition at line 73 of file vxlan.c.

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u8* format_vxlan_tunnel	(	u8 *	s,
		va_list *	args
	)

Definition at line 57 of file vxlan.c.

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static clib_error_t* show_vxlan_tunnel_command_fn ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 581 of file vxlan.c.

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static uword unformat_decap_next ( unformat_input_t *  input, va_list *  args  )

static

Definition at line 401 of file vxlan.c.

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VNET_DEVICE_CLASS	(	vxlan_device_class	,
		static
	)

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VNET_HW_INTERFACE_CLASS

(

vxlan_hw_class

)

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int vnet_vxlan_add_del_tunnel	(	vnet_vxlan_add_del_tunnel_args_t *	a,
		u32 *	sw_if_indexp
	)

Definition at line 203 of file vxlan.c.

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static int vxlan4_rewrite ( vxlan_tunnel_t *  t )

static

Definition at line 136 of file vxlan.c.

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static int vxlan6_rewrite ( vxlan_tunnel_t *  t )

static

Definition at line 169 of file vxlan.c.

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static clib_error_t* vxlan_add_del_tunnel_command_fn ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 422 of file vxlan.c.

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clib_error_t* vxlan_init

(

vlib_main_t *

vm

)

Definition at line 617 of file vxlan.c.

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static clib_error_t* vxlan_interface_admin_up_down ( vnet_main_t *  vnm, u32  hw_if_index, u32  flags  )

static

Definition at line 88 of file vxlan.c.

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Variable Documentation

vlib_cli_command_t create_vxlan_tunnel_command

static

Initial value:

= {
  .path = "create vxlan tunnel",
  .short_help = 
  "create vxlan tunnel src <local-vtep-addr> dst <remote-vtep-addr> vni <nn>" 
  " [encap-vrf-id <nn>] [decap-next [l2|ip4|ip6]] [del]",
  .function = vxlan_add_del_tunnel_command_fn,
}

(constructor) VLIB_CLI_COMMAND (create_vxlan_tunnel_command)

Definition at line 571 of file vxlan.c.

vlib_cli_command_t show_vxlan_tunnel_command

static

Initial value:

= {
    .path = "show vxlan tunnel",
    .short_help = "show vxlan tunnel",
    .function = show_vxlan_tunnel_command_fn,
}

(constructor) VLIB_CLI_COMMAND (show_vxlan_tunnel_command)

Definition at line 609 of file vxlan.c.

vxlan_main_t vxlan_main

Definition at line 35 of file vxlan.c.