NSC-TCP-EXCEL-MIB

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Category: Legacy High-Performance Switching

Description: Manages NSC TCP/IP acceleration and performance objects on Network Systems Corporation Excel platform.

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What Is NSC-TCP-EXCEL-MIB?

NSC-TCP-EXCEL-MIB is Network Systems Corporation's proprietary MIB for TCP/IP acceleration and performance features on its Excel platform, historically used for mainframe channel extension and WAN acceleration links. It exposes configuration and performance data related to protocol acceleration and TCP session handling over those extended links. From a status-monitoring perspective it is oriented toward software/performance health: TCP session/connection counts and throughput-related performance counters would be the primary indicators of link health rather than physical component sensors. No object list was available in the source, so this profile is inferred from the module's stated purpose rather than confirmed object names. It was deployed in legacy WAN channel-extension environments connecting mainframe or SNA sites over accelerated TCP/IP links. Engineers can download the NSC-TCP-EXCEL-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in NSC-TCP-EXCEL-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Network Systems Corporation Excel platform (WAN/channel extension device)

Monitoring Examples

No sample objects were provided for this module, so a concrete polling scenario naming real objects cannot be constructed; a realistic use, consistent with the module's stated purpose, would be tracking TCP session counts and acceleration throughput counters to detect a degraded or saturated channel-extension link.

What Can Be Monitored

TCP session/connection count
acceleration throughput performance counters
protocol acceleration configuration status

Imported Objects

From NSC-MIB

nscDx

OBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter
Gauge
IpAddress

From RFC1213-MIB

DisplayString

OIDs

OID symbolic	OID numeric	Type	Access	Description
nscDxTcpXcel	1.3.6.1.4.1.10.2.1.3.6
nscDxTcpXcelTcp	1.3.6.1.4.1.10.2.1.3.6.1
CTR nscDxTcpXcelTcpActiveOpens	1.3.6.1.4.1.10.2.1.3.6.1.5	Counter	read-only	The number of times TCP connections have made a direct transition to the SYN-SENT state from the CLOSED state.
CTR nscDxTcpXcelTcpAttemptFails	1.3.6.1.4.1.10.2.1.3.6.1.7	Counter	read-only	The number of times TCP connections have made a direct transition to the CLOSED state from either the SYN-SENT state 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.
CTR nscDxTcpXcelTcpClosed	1.3.6.1.4.1.10.2.1.3.6.1.17	Counter	read-only	The total number of connections closed.
CTR nscDxTcpXcelTcpConnAttempt	1.3.6.1.4.1.10.2.1.3.6.1.16	Counter	read-only	The total number of connections initiated.
nscDxTcpXcelTcpConnEntry	1.3.6.1.4.1.10.2.1.3.6.1.13.1		not-accessible	Information about a particular current TCP connection. An object of this type is transient, in that it ceases to exist when (or soon after) the connection makes the transition to the CLOSED state.
IP nscDxTcpXcelTcpConnLocalAddress	1.3.6.1.4.1.10.2.1.3.6.1.13.1.5	IpAddress	read-only	The local IP address for this TCP connection. In the case of a connection in the listen state which is willing to accept connections for any IP interface associated with the node, the value 0.0.0.0 is used.
INT nscDxTcpXcelTcpConnLocalPort	1.3.6.1.4.1.10.2.1.3.6.1.13.1.6	INTEGER	read-only	The local port number for this TCP connection.
IP nscDxTcpXcelTcpConnRemAddress	1.3.6.1.4.1.10.2.1.3.6.1.13.1.7	IpAddress	read-only	The remote IP address for this TCP connection.
INT nscDxTcpXcelTcpConnRemPort	1.3.6.1.4.1.10.2.1.3.6.1.13.1.8	INTEGER	read-only	The remote port number for this TCP connection.
INT nscDxTcpXcelTcpConnState	1.3.6.1.4.1.10.2.1.3.6.1.13.1.4	INTEGER	read-only	The state of this TCP connection.
nscDxTcpXcelTcpConnTable	1.3.6.1.4.1.10.2.1.3.6.1.13		not-accessible	A table containing TCP connection-specific information.
GAU nscDxTcpXcelTcpCurrEstab	1.3.6.1.4.1.10.2.1.3.6.1.9	Gauge	read-only	The number of TCP connections for which the current state is either ESTABLISHED or CLOSE- WAIT.
CTR nscDxTcpXcelTcpDelAck	1.3.6.1.4.1.10.2.1.3.6.1.20	Counter	read-only	The total number of delayed acks sent.
CTR nscDxTcpXcelTcpEstabResets	1.3.6.1.4.1.10.2.1.3.6.1.8	Counter	read-only	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.
INT nscDxTcpXcelTcpHostIdx	1.3.6.1.4.1.10.2.1.3.6.1.13.1.2	INTEGER	read-only	The logical host number for this TCP connection.
STR nscDxTcpXcelTcpHostName	1.3.6.1.4.1.10.2.1.3.6.1.13.1.3	DisplayString	read-only	The logical host name for this TCP connection.
CTR nscDxTcpXcelTcpInErrs	1.3.6.1.4.1.10.2.1.3.6.1.14	Counter	read-only	The total number of segments received in error (e.g., bad TCP checksums).
CTR nscDxTcpXcelTcpInSegs	1.3.6.1.4.1.10.2.1.3.6.1.10	Counter	read-only	The total number of segments received, including those received in error. This count includes segments received on currently established connections.
CTR nscDxTcpXcelTcpKeepDrop	1.3.6.1.4.1.10.2.1.3.6.1.26	Counter	read-only	The total number of connections dropped in keepalive.
CTR nscDxTcpXcelTcpKeepProbe	1.3.6.1.4.1.10.2.1.3.6.1.25	Counter	read-only	The total number of keepalive probes sent.
CTR nscDxTcpXcelTcpKeepTimeo	1.3.6.1.4.1.10.2.1.3.6.1.24	Counter	read-only	The total number of keepalive timeouts.
INT nscDxTcpXcelTcpMaxConn	1.3.6.1.4.1.10.2.1.3.6.1.4	INTEGER	read-only	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 should contain the value -1.
CTR nscDxTcpXcelTcpOutRsts	1.3.6.1.4.1.10.2.1.3.6.1.15	Counter	read-only	The number of TCP segments sent containing the RST flag. This object is not supported in this version.
CTR nscDxTcpXcelTcpOutSegs	1.3.6.1.4.1.10.2.1.3.6.1.11	Counter	read-only	The total number of segments sent, including those on current connections but excluding those containing only retransmitted octets.
CTR nscDxTcpXcelTcpPassiveOpens	1.3.6.1.4.1.10.2.1.3.6.1.6	Counter	read-only	The number of times TCP connections have made a direct transition to the SYN-RCVD state from the LISTEN state.
CTR nscDxTcpXcelTcpPcbCacheMiss	1.3.6.1.4.1.10.2.1.3.6.1.36	Counter	read-only	The total number of input packets missing pcb cache.
CTR nscDxTcpXcelTcpPersistTimeo	1.3.6.1.4.1.10.2.1.3.6.1.23	Counter	read-only	The total number of persist timeouts.
CTR nscDxTcpXcelTcpRcvAckByte	1.3.6.1.4.1.10.2.1.3.6.1.45	Counter	read-only	The total number of bytes acked by rcvd acks.
CTR nscDxTcpXcelTcpRcvAckPack	1.3.6.1.4.1.10.2.1.3.6.1.44	Counter	read-only	The total number of rcvd ack packets.
CTR nscDxTcpXcelTcpRcvAckTooMuch	1.3.6.1.4.1.10.2.1.3.6.1.43	Counter	read-only	The total number of rcvd acks for unsent data.
CTR nscDxTcpXcelTcpRcvAfterClose	1.3.6.1.4.1.10.2.1.3.6.1.40	Counter	read-only	The total number of bytes rcvd after close.
CTR nscDxTcpXcelTcpRcvByteAfterWin	1.3.6.1.4.1.10.2.1.3.6.1.39	Counter	read-only	The total number of bytes rcvd after window.
CTR nscDxTcpXcelTcpRcvBytes	1.3.6.1.4.1.10.2.1.3.6.1.38	Counter	read-only	The total number of bytes received in Sequence.
CTR nscDxTcpXcelTcpRcvdUpack	1.3.6.1.4.1.10.2.1.3.6.1.42	Counter	read-only	The total number of received duplicate acks.
CTR nscDxTcpXcelTcpRcvPack	1.3.6.1.4.1.10.2.1.3.6.1.37	Counter	read-only	The total number of packets received in sequence.
CTR nscDxTcpXcelTcpRcvWinProbe	1.3.6.1.4.1.10.2.1.3.6.1.41	Counter	read-only	The total number of rcvd window probe packets.
CTR nscDxTcpXcelTcpRcvWinUpd	1.3.6.1.4.1.10.2.1.3.6.1.46	Counter	read-only	The total number of rcvd window update packets.
CTR nscDxTcpXcelTcpRetransSegs	1.3.6.1.4.1.10.2.1.3.6.1.12	Counter	read-only	The total number of segments retransmitted - that is, the number of TCP segments transmitted containing one or more previously transmitted octets.
CTR nscDxTcpXcelTcpRexmtTimeo	1.3.6.1.4.1.10.2.1.3.6.1.22	Counter	read-only	The total number of retransmit timeouts.
INT nscDxTcpXcelTcpRtoAlgorithm	1.3.6.1.4.1.10.2.1.3.6.1.1	INTEGER	read-only	The algorithm used to determine the timeout value used for retransmitting unacknowledged octets.
INT nscDxTcpXcelTcpRtoMax	1.3.6.1.4.1.10.2.1.3.6.1.3	INTEGER	read-only	The maximum value permitted by a TCP implementation for the retransmission timeout, measured in milliseconds. More refined semantics for objects of this type depend upon the algorithm used to determine the retransmission timeout. In particular, when the timeout algorithm is rsre(3), an object of this type has the semantics of the UBOUND quantity described in RFC 793.
INT nscDxTcpXcelTcpRtoMin	1.3.6.1.4.1.10.2.1.3.6.1.2	INTEGER	read-only	The minimum value permitted by a TCP implementation for the retransmission timeout, measured in milliseconds. More refined semantics for objects of this type depend upon the algorithm used to determine the retransmission timeout. In particular, when the timeout algorithm is rsre(3), an object of this type has the semantics of the LBOUND quantity described in RFC 793.
CTR nscDxTcpXcelTcpRttUpdated	1.3.6.1.4.1.10.2.1.3.6.1.19	Counter	read-only	The total number of rtt segments updated.
INT nscDxTcpXcelTcpSapId	1.3.6.1.4.1.10.2.1.3.6.1.13.1.1	INTEGER	read-only	The SAP ID number for this TCP listener.
CTR nscDxTcpXcelTcpSegsTimed	1.3.6.1.4.1.10.2.1.3.6.1.18	Counter	read-only	The total number of segments we tried to get rtt.
CTR nscDxTcpXcelTcpSndAcks	1.3.6.1.4.1.10.2.1.3.6.1.31	Counter	read-only	The total number of ack-only packets sent.
CTR nscDxTcpXcelTcpSndByte	1.3.6.1.4.1.10.2.1.3.6.1.28	Counter	read-only	The total number of data bytes sent.
CTR nscDxTcpXcelTcpSndCtrl	1.3.6.1.4.1.10.2.1.3.6.1.35	Counter	read-only	The total number of control (syn\|fin\|rst) packets sent.
CTR nscDxTcpXcelTcpSndPack	1.3.6.1.4.1.10.2.1.3.6.1.27	Counter	read-only	The total number of data packets sent.
CTR nscDxTcpXcelTcpSndProbe	1.3.6.1.4.1.10.2.1.3.6.1.32	Counter	read-only	The total number of window probes sent.
CTR nscDxTcpXcelTcpSndRexmitByte	1.3.6.1.4.1.10.2.1.3.6.1.30	Counter	read-only	The total number of data bytes retransmitted.
CTR nscDxTcpXcelTcpSndRexmitPack	1.3.6.1.4.1.10.2.1.3.6.1.29	Counter	read-only	The total number of data packets retransmitted.
CTR nscDxTcpXcelTcpSndUrg	1.3.6.1.4.1.10.2.1.3.6.1.33	Counter	read-only	The total number of packets sent with URG only.
CTR nscDxTcpXcelTcpSndWinUp	1.3.6.1.4.1.10.2.1.3.6.1.34	Counter	read-only	The total number of window update only packets sent.
CTR nscDxTcpXcelTcpTimeoutDrop	1.3.6.1.4.1.10.2.1.3.6.1.21	Counter	read-only	The total number of conn. dropped in rxmt timeout.
nscDxTcpXcelUdp	1.3.6.1.4.1.10.2.1.3.6.2
nscDxTcpXcelUdpEntry	1.3.6.1.4.1.10.2.1.3.6.2.7.1		not-accessible	Information about a particular current UDP listener.
INT nscDxTcpXcelUdpHostIdx	1.3.6.1.4.1.10.2.1.3.6.2.7.1.2	INTEGER	read-only	The logical host number for this UDP listener.
STR nscDxTcpXcelUdpHostName	1.3.6.1.4.1.10.2.1.3.6.2.7.1.3	DisplayString	read-only	The logical host name for this UDP listener.
CTR nscDxTcpXcelUdpInDatagrams	1.3.6.1.4.1.10.2.1.3.6.2.1	Counter	read-only	The total number of UDP datagrams delivered to UDP users.
CTR nscDxTcpXcelUdpInErrors	1.3.6.1.4.1.10.2.1.3.6.2.3	Counter	read-only	The number of received UDP datagrams that could not be delivered for reasons other than the lack of an application at the destination port.
IP nscDxTcpXcelUdpLocalAddress	1.3.6.1.4.1.10.2.1.3.6.2.7.1.4	IpAddress	read-only	The local IP address for this UDP listener. In the case of a UDP listener which is willing to accept datagrams for any IP interface associated with the node, the value 0.0.0.0 is used.
INT nscDxTcpXcelUdpLocalPort	1.3.6.1.4.1.10.2.1.3.6.2.7.1.5	INTEGER	read-only	The local port number for this UDP listener.
CTR nscDxTcpXcelUdpNoPortBcast	1.3.6.1.4.1.10.2.1.3.6.2.5	Counter	read-only	The total number of received UDP datagrams for which there was no application at the destination port and arrived as broadcast.
CTR nscDxTcpXcelUdpNoPorts	1.3.6.1.4.1.10.2.1.3.6.2.2	Counter	read-only	The total number of received UDP datagrams for which there was no application at the destination port.
CTR nscDxTcpXcelUdpOutDatagrams	1.3.6.1.4.1.10.2.1.3.6.2.4	Counter	read-only	The total number of UDP datagrams sent from this entity.
CTR nscDxTcpXcelUdpPcbCacheMissing	1.3.6.1.4.1.10.2.1.3.6.2.6	Counter	read-only	The total number of received UDP datagrams which does not have a pcb cache.
INT nscDxTcpXcelUdpSapId	1.3.6.1.4.1.10.2.1.3.6.2.7.1.1	INTEGER	read-only	The SAP ID number for this UDP listener.
nscDxTcpXcelUdpTable	1.3.6.1.4.1.10.2.1.3.6.2.7		not-accessible	A table containing UDP listener information.

RFC description

Provides extended TCP/UDP statistics and protocol monitoring for Network System Corporation systems.

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Download NSC-TCP-EXCEL-MIB

What Is NSC-TCP-EXCEL-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description