TCP/IP Configuration and Management Manual

SCF Reference
TCP/IP Configuration and Management Manual—427132-004
4-78
STATS PROCESS Command
Good Routes Recorded
is the number of valid routes discovered by IRDP messages that have been
entered in the TCP/IP route table.
In Dest Unreachable
is the number of Destination Unreachable (type 3) messages received.
A Destination Unreachable message is sent to the NonStop TCP/IP subsystem
when another host, gateway or router determines that a destination host or port is
unreachable. This message can be caused by the following reasons: either there is
no route to the destination or the route to the destination has gone down; a
nonexistent address has been specified; the process listening on the port has gone
down; the destination host has crashed; or fragmentation is needed but the “Don't
Fragment” flag is set.
In Echo
is the number of Echo (type 8) messages received. The Echo message is sent
from the source address to the destination address. An Echo Reply message
containing the same data is expected from the destination address.
In Echo Reply
is the number of Echo Reply (type 0) messages received. This ICMP message is
the reply to the Echo (type 8) message. Essentially, an Echo Reply message is just
the original Echo message with the type changed from 8 to 0 and the destination
and source addresses reversed; the data returned in the Echo Reply message is
the same as that sent in the Echo message. The receipt of an Echo Reply
message informs the local host that the remote host is still alive. The data returned
also gives the local host a means of testing the integrity of the link.
In Info Reply
is the number of Information Reply (type 16) messages received. A host, router, or
gateway sends this message—with the source and destination addresses fully
specified—in reply to an Information Request message. Note that the Information
Request/Reply facility, although supported, is rarely used.
In Info Request
is the number of Information Request (type 15) messages received. A host, router,
or gateway can send this message—with the network portion of the source
address and the destination address set to 0—to determine the number of the
network on which it is running. Any host on the network can respond to this request
with an Information Reply message.
In Parameter Problem
is the number of Parameter Problem (type 12) messages received. A host, router,
or gateway sends this message to notify the NonStop TCP/IP subsystem