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TCP Timeout Max
The maximum value permitted for TCP retransmission timeout, measured in milliseconds.
TCP Connection Limit
The limit on the total number of TCP connections that the system can support. A value of -1 means there
is no limit.
TCP Active Opens
The number of TCP connections that went directly from an unconnected state to a
connection-synchronizing state, bypassing the listening state. These connections are allowed, but they
are usually in the minority.
TCP Passive Opens
The number of TCP connections that went from a listening state to a connection-synchronizing state.
These connections are usually in the majority.
TCP Attempt Failures
The number of TCP connection attempts that failed. Technically this is the number of TCP connections
that went to an unconnected state, plus the number that went to a listening state, from a
connection-synchronizing state.
TCP Established Resets
The number of established TCP connections that abruptly closed, bypassing graceful termination.
TCP Current Established
The number of TCP connections that are currently established or are gracefully terminating.
UDP Datagrams Received
The total number of UDP datagrams received. Datagram is the official UDP name for what is casually
called a data packet.
UDP Datagrams Transmitted
The total number of UDP datagrams sent. Datagram is the official UDP name for what is casually called
a data packet.
VPN 3000 Concentrator Series User Guide
Monitor | Statistics | MIB-II | TCP/UDP
15-81
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