bgp

const (
	M_OPEN         = 1
	M_UPDATE       = 2
	M_NOTIFICATION = 3
	M_KEEPALIVE    = 4

	IGP = 0
	EGP = 1

	//https://www.rfc-editor.org/rfc/rfc3392.txt
	CAPABILITIES_OPTIONAL_PARAMETER = 2 // Capabilities Optional Parameter (Parameter Type 2)

	// https://www.iana.org/assignments/capability-codes/capability-codes.xhtml
	BGP4_MP = 1 //Multiprotocol Extensions for BGP-4

	// Path attribute types
	ORIGIN          = 1
	AS_PATH         = 2
	NEXT_HOP        = 3
	MULTI_EXIT_DISC = 4
	LOCAL_PREF      = 5
	COMMUNITIES     = 8
	MP_REACH_NLRI   = 14 // Multiprotocol Reachable NLRI - MP_REACH_NLRI (Type Code 14)
	MP_UNREACH_NLRI = 15 // Multiprotocol Unreachable NLRI - MP_UNREACH_NLRI (Type Code 15)

	AS_SET      = 1
	AS_SEQUENCE = 2

	// NOTIFICATION ERROR CODES
	MESSAGE_HEADER_ERROR        = 1 // [RFC4271]
	OPEN_MESSAGE_ERROR          = 2 // [RFC4271]
	UPDATE_MESSAGE_ERROR        = 3 // [RFC4271]
	HOLD_TIMER_EXPIRED          = 4 // [RFC4271]
	FSM_ERROR                   = 5 // [RFC4271]
	CEASE                       = 6 // [RFC4271]
	ROUTE_REFRESH_MESSAGE_ERROR = 7 // [RFC7313]

	UNSUPPORTED_VERSION_NUMBER = 1 // OPEN_MESSAGE_ERROR
	BAD_BGP_ID                 = 3 // OPEN_MESSAGE_ERROR
	UNNACEPTABLE_HOLD_TIME     = 6 // OPEN_MESSAGE_ERROR
	BAD_MESSAGE_TYPE           = 3 // MESSAGE_HEADER_ERROR
	ADMINISTRATIVE_SHUTDOWN    = 2 // CEASE
	OUT_OF_RESOURCES           = 8 // CEASE

	WTCR = 64  // (Well-known, Transitive, Complete, Regular length)
	WTCE = 80  // (Well-known, Transitive, Complete, Extended length)
	ONCR = 128 // (Optional, Non-transitive, Complete, Regular length)
	ONCE = 144 // (Optional, Non-transitive, Complete, Extended length)
	OTCR = 192 // (Optional, Transitive, Complete, Regular length)
	OTCE = 208 // (Optional, Transitive, Complete, Extended length)
)

const (
	IDLE         = "IDLE"
	ACTIVE       = "ACTIVE"
	CONNECT      = "CONNECT"
	OPEN_SENT    = "OPEN_SENT"
	OPEN_CONFIRM = "OPEN_CONFIRM"
	ESTABLISHED  = "ESTABLISHED"
)

const (
	CONNECTION_FAILED = iota
	REMOTE_SHUTDOWN
	LOCAL_SHUTDOWN
	INVALID_LOCALIP
)