Empowering Global Enterprise
Business Cloud Service and Security
Management
Empowering Global Enterprise
Business Cloud Service and Security
Management
CleverView for TCP/IP on Linux: Frequently Asked Questions
CleverView for TCP/IP on Linux is an enterprise IP monitor focusing on the growing Linux installed base on System z and zEnterprise systems. Comprehensive views and reporting on TCP/IP network details are provided with detailed information on:
- Data movement through the IP stack
- TCP, UDP, IP and ICMP status and statistics
- Process CPU and storage utilization
The continuous measurement provided by CleverView for TCP/IP on Linux provides details on Service Level compliance and availability, and expedites the IP problem diagnosis area. With its historical data repository capacity planners and tuning experts can plan for future business Linux application growth.
CleverView for TCP/IP monitors and reports on the availability and performance of the z/OS IP stack and CleverView for TCP/IP on Linux monitors and reports on the availability and performance of the Linux IP stack. As Linux virtualization grows on System z and zEnterprise Systems, understanding the IP availability and performance data for both IP stacks is critical.
Absolutely. For example, the ProcessView feature provides the ability to monitor any or all Linux process activity and usage. With the combination of PortMon and Critical Resource Monitor functions you can monitor specific application processes based on their TCP port assignments, specific critical remote servers, or other IP resources, such as switches or printers. Once an item is defined both Availability and performance information are gathered. Definitions can be specified to determine status and threshold alerts defined to comply with performance guidelines. These definitions are easily set via the Web browser interface.
The product has in-built historical reporting. This is done via Thru24 and Thru99 provided filtered historical reports. Thru24 provides summaries or details for performance metrics for the past 24 hours, while Thru99 provides summaries or detailed performance metric reports based on hourly-by-day, or daily-by-week options. Some of these metrics include Links, Processes, and Response Time, as well as workloads based on protocol (IPv4, IPv6, ICMPv4, ICMPv6, TCP and UDP).
- LinkView – Near-time IP throughput information on channel-attached devices (through the Thru24 IP Summary/ Detail reports)
- Enterprise Extender Expert – Near-time EE throughput information on EE assigned ports (through the Thru24 EE Summary/Detail reports)
Yes, from each real-time monitoring interface, you can zoom down to specific details on specific items such as links, ports, processes, printers, protocols, or critical resources. Embedded hyperlinks on most displays provide speedy assists for further topical zoom-in, or invoke specific Thru24 reports. Alternatively, the PinPoint interface can provide short-cuts to bypass zoom-in steps and speed up diagnostics. Specialized diagnostic Utilities are included such as DNS Lookup, MIB Lookup. Another feature is the ability to browse SNMP MIB's (public and private) in real-time, resulting in a formatted display. What IP monitor would be complete without a menu-based command interface, to issue Pings or TraceRts?
CleverView for TCP/IP on Linux is positioned for deployment and monitoring of any Linux on System z nodes. It has support for RedHat Linux Enterprise Server (RHEL) v5/v6, or Novell's SUSE Linux Enterprise Server (SLES) v10/v11.
In addition, the product also supports any Wintel-deployed Linux platform , which customers have selected to implement within their virtualized service environment. In fact, it is fully expected that CleverView for TCP/IP on Linux should work for just about any chosen Linux system environment.
If there are any specific Linux version support and/or virtualized system implementation questions, then please forward them to AES Support support@aesclever.com, and they can provide specific insights and feedback.
Any staff member responsible for Linux on System z system management, network performance, capacity planners and tuning specialists. Other groups ranging from virtualization project members to application development members, and cloud project members could benefit from performance and availability metrics provided by CleverView for TCP/IP for Linux.
You can install the product in just a day or two.
CleverView for TCP/IP on Linux: Frequently Asked Questions
- establishing TCP/IP mission critical application service level objectives
- reporting service level performance on a routine basis
- identifying the high-demand workload periods
- trending based on historical data for network response time issues and planning purposes
- identifying performance bottlenecks before users complain
- monitoring in real time
- command submission to the mainframe host(s), as well as sending alerts to the operator console
- planning for networked mission critical transactions on a proactive basis
Yes. Enterprise Extender Expert shows:
- Connection status and traffic data for EE Connections
- Session information about HPR pipes, including current data and connection state, as well as flow and fault information for APPN/HPR Connections
- Real-time EE UDP workload data for EE assigned port for UDP Port
HPR-EE Alerts focus on the primary indicators of HPR-EE link health: link state availability and the number of active sessions. Alerts for EE Connections include Minimum Active EE Sessions, NLP Retransmits, and Number of SR Retries. Alerts for HPR Connections include Minimum Active LU-LU Sessions, HPR Connection State, and Path Now Switching.
CleverView for TCP/IP provides both Real-Time Packet Tracing and Real-Time Monitoring capabilities. Functions with real-time capabilities include the following:
- Snapshot – Real-time performance and workload information for applications and clients, in terms of response time for bytes transferred and number of sessions (through the Resource Performance reports: Average Response Time, Network Health, and Packet Performance)
- LinkView – Real-time Channel Processor Monitoring for TCP/IP
- Monitor – Real-time,on-line data regarding your operating environment for devices and applications using the MVS TCP/IP address space
- Buffers – Real-time monitoring of CSM and VTAM buffer status
- Connect Expert – Real-time UDP data (EE workload for assigned ports and non-EE session connectivity) and real-time monitoring of your sockets and the connectivity to all sessions running over TCP/ IP
CleverView for TCP/IP also provides near-time monitoring capabilities. Functions with near-time capabilities include the following:
- LinkView – Near-time IP throughput information on channel-attached devices (through the Thru24 IP Summary/ Detail reports)
- Enterprise Extender Expert – Near-time EE throughput information on EE assigned ports (through the Thru24 EE Summary/Detail reports)
CleverView for TCP/IP views the TCP/IP network performance from the enterprise level to the remote user connection. Performance indicators are available for workload, usage, and response time. The history reports are available immediately after the Host Monitor is brought up. They include:
- Buffer
- CSM – Usage and alerts for CSM buffer pools
- VTAM – Usage and trends for VTAM buffer pools
- Expert Reports
- FTP Expert – Session-based FTP (client or server)
- TCP Expert – Session-based Socket applications
- Telnet Expert – Session-based Telnet (client or server)
- Link Performance
- Thru99 EE – Interval-based throughput summaries for Enterprise Extender (UDP-based) data traffic by port
- Thru99 Link – Interval-based throughput summaries for TCP/IP data traffic to/from IP channel links
- Resource Performance
- Response Time – Average response times for the test done by the host and on the varying number of bytes sent in the tests set up through the Master workstation
- Service Level Response Time – Critical resources that have exceeded the user-defined service goal for response time
- Trace Route – TCP/IP route and segment information
- Workload
- Application – Information about applications running on a network, such as Top Number of Bytes and Usage Details
- Client – Information about clients running on a network, such as Top Number of Bytes and Usage Details
The SessionLog Expert allows viewing of near time or current time sessions, that is, sessions that are either currently active or have recently happened. The definition of "recently" is determined by the installation and is set in the parameters for the FTP or SMF exits. SessionLog requires that the FTP and SMF exits have been previously installed on the host. SessionLog divides data into seven logs under two categories: FTP and TCP.
- FTP
- FTP Error Log – Subset of the FTP SMF Log that provides detail on FTP errors
- FTP Log – Provides details on completed FTPs
- FTP Server Activity Log – Shows commands entered for completed and in-progress FTPs
- TCP
- MQ Log – Defines one or more ports that are being listened on by MQ Series. These ports will be used for selecting MQ session data for reporting purposes
- TCP Log – Details API sessions that are completed or still active by capturing the initiation and termination events. It includes all socket-attached applications
- Telnet Log – Shows the details on Telnet sessions that are completed or are still active. Logon and logoff events are captured
- Websphere Log – Defines one or more ports that are being listened on by WebSphere. These ports will be used for selecting WebSphere session data for reporting purposes
The SnapShot Reports provide data on current activity that has not yet been placed in the VSAM history files. The SnapShot reports are divided into three sections:
- Workload
- Application Reports
- Client Reports
- Resource Performance
- Network Health
- Average Response Time
- Packet Performance Detail
- Link Performance
- Thru24 EE
- Thru24 IP Link