Cisco Systems 12000/10700 V3.1.1 manual TCP Connections Tab, Connections Table

Chapter 4 Managing Chassis

TCP Status

Active Opens—The number of times TCP connections have made a direct transition to the SYN-SENT state from the CLOSED state.

Establishment Resets—The number of times TCP connections have made a direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state.

Input Segments—The total number of segments received, including those received in error. This count includes segments received on currently established connections.

Retransmitted Segments—The total number of segments retransmitted - that is, the number of TCP segments transmitted containing one or more previously transmitted octets.

Attempts Failed—The number of times TCP connections have made a direct transition to the CLOSED state from either the SYN-SENT or the SYN-RCVD state plus the number of times TCP connections have made a direct transition to the LISTEN state from the SYN-RCVD state.

Maximum TCP Connections—The limit on the total number of TCP connections the entity can support. In entities where the maximum number of connections is dynamic, this object contains the value of -1.

Maximum Retransmission Timeout—The maximum value permitted by a TCP implementation for the retransmission timeout measured in milliseconds.

Passive Opens—The number of times TCP connections have made a direct transition to the SYN-RCVD state from the LISTEN state.

Output Resets—The number of TCP segments sent containing the RST flag.

Output Segments—The total number of segments sent, including those on current connections but excluding those containing only retransmitted octets.

Input Errors—The total number of segments received in error (e.g., bad TCP checksums).

TCP Connections Tab

The TCP Connections tab displays information from the TCP Connection Table. The TCP Connection Table contains information specific to the TCP connections. This Tab contains a “Connection Table” area that contains the following fields:

Connections Table

Local Port—Displays the local port number for the TCP connection. It can be any integer between 0 and 65535.

Local IP Address—Displays the local IP address for the TCP connection. If the TCP connection is in a listening state that is willing to accept connections for any IP interface associated with the node, then the value used and hence displayed will be 0.0.0.0

Remote Port—Displays the remote port number for the TCP connection. It can be any integer between 0 and 65535.

Remote IP Address—Displays the remote IP address for the TCP connection.

Connection State—Displays the current state of the TCP connection.

Cisco 12000/10700 v3.1.1 Router Manager User Guide

OL-4455-01 4-47