bgp

Documentation

Index

• type Advertisement
  • func (a *Advertisement) Equal(b *Advertisement) bool
• type Session
  • func New(l log.Logger, addr string, asn uint32, routerID net.IP, peerASN uint32, ...) (*Session, error)
  • func (s *Session) Close() error
  • func (s *Session) Set(advs ...*Advertisement) error

Types

type Advertisement

type Advertisement struct {
	// The prefix being advertised to the peer.
	Prefix *net.IPNet
	// The address of the router to which the peer should forward traffic.
	NextHop net.IP
	// The local preference of this route. Only propagated to IBGP
	// peers (i.e. where the peer ASN matches the local ASN).
	LocalPref uint32
	// BGP communities to attach to the path.
	Communities []uint32
}

Advertisement represents one network path and its BGP attributes.

func (*Advertisement) Equal

func (a *Advertisement) Equal(b *Advertisement) bool

Equal returns true if a and b are equivalent advertisements.

type Session

type Session struct {
	// contains filtered or unexported fields
}

Session represents one BGP session to an external router.

func New

func New(l log.Logger, addr string, asn uint32, routerID net.IP, peerASN uint32, holdTime time.Duration, password string) (*Session, error)

New creates a BGP session using the given session parameters.

The session will immediately try to connect and synchronize its local state with the peer.

func (*Session) Close

func (s *Session) Close() error

Close shuts down the BGP session.

func (*Session) Set

func (s *Session) Set(advs ...*Advertisement) error

Set updates the set of Advertisements that this session's peer should receive.

Changes are propagated to the peer asynchronously, Set may return before the peer learns about the changes.