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JUNOSe 11.0.x IP, IPv6, and IGP Configuration Guide
104
Monitoring IP
socketNumber ipAddress:portNumber --> ipAddress:portNumber Socket and
the IP address and port number for each end of the connection, with the E
Series router shown on the left and the remote peer on the right
type Type of connection: SOCK_STREAM (uses TCP) or DGRAM (datagram;
uses UDP)
opts Options set on the individual sockets
SO_DEBUG Turn on debugging; has no effect
SO_ACCEPTCONN Socket can accept incoming connections
SO_REUSEADDR Allow reuse of the local address
SO_KEEPALIVE Do keepalives on the connection
SO_DONTROUTE Do not route packets, use interface addresses
SO_BROADCAST Broadcasts can be sent over the socket
SO_USELOOPBACK Bypass the hardware if/when possible
SO_LINGER Linger on a close() if data is present
SO_OOBINLINE Leave received out-of-band data in-line
SO_REUSEPORT Allow reuse of local port
so_state State of each socket; knowledge of BSD Sockets API is useful to
understand this information
SS_NOFDREF No file table reference any more
SS_ISCONNECTED Socket is connected to a peer
SS_ISCONNECTING Socket is in process of connecting to peer
SS_ISDISCONNECTING Socket is in process of disconnecting
SS_CANTSENDMORE Socket cannot send more data to peer
SS_CANTRCVMORE Socket cannot receive more data from peer
SS_RCVATMARK Socket at mark on input
SS_PRIV Socket is privileged for broadcast, raw
SS_NBIO Socket allows nonblocking operations
SS_ASYNC Socket allows asynchronized I/O notifications
SS_ISCONFIRMING Socket is deciding to accept connection request
pending xmit byte count = 0 recv count Number of bytes that are pending
to be sent (queued up) and received
Keep alive idle time Number of seconds before TCP sends an initial
keepalive probe to an idle remote node
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