NCCHECK(8,C) AIX Commands Reference NCCHECK(8,C) ------------------------------------------------------------------------------- nccheck PURPOSE Checks cluster /etc/netparams configuration. SYNTAX +-------------------+ +------+ nccheck --| one of |--| |-| |------- -L --------| +- -A -+ | | +-- -s --- site # --+ ^ | +---------+ DESCRIPTION The nccheck command is used to rapidly confirm that the cluster /etc/netparams file matches the standard values (as shipped). Differences are reported on a per-item basis. The nccheck commmand also compares each running kernel in the cluster to the /etc/netparams file to confirm the use of /etc/params. The nccheck provides the user with the ability to check network configuration parameters against the established norms. Furthermore, nccheck can be used to report on various system parameters which may affect network configuration. The nccheck command runs on any site in a cluster, executing sub-programs on each desired site in the cluster to gather data. Once the data has been gathered, a report is prepared according to the user options and is written to standard output. Network parameter check reports are formatted as follows: site_number timeout retries window sp_wind checksum ... (for each site) ... Parameters which differ from the norm are highlighted by displaying the norm in parenthesis following the observed value. Sites appearing in /etc/sites from which data was not able to be collected are flagged as in the following report: Data was not collected from the following sites: site_number reason_data_was_not_collected ... (for each site) ... Extended reports contain parameters and data related to the network configuration of a site. The extended reports are formatted as in the following example: Processed November 8, 1990 NCCHECK(8,C) 1 NCCHECK(8,C) AIX Commands Reference NCCHECK(8,C) --------------------------------------------------------------- Site Memory Buffers Swap Number Space --------------------------------------------------------------- fafnir (1) 12160 482 40000 werth (2) 8068 284 40000 atlas (3) 6016 200 24000 zaniah (4) 6016 200 40000 The memory and swap space sizes are reported in 1024-byte granules. AIX sites running on System/370 virtual machines have the following data reported: --------------------------------------------------------------- Site 370paging 370hdclk Number Rate --------------------------------------------------------------- fafnir (1) 0 0 werth (2) 4 0 snap (5) 4 0 carmen (14) 0 0 The System/370 paging rate is the paging rate returned by a cpcmd indicate command. The System/370 hard clock value is a count of the number of times AIX has determined that VM is providing an insufficient amount of CPU to AIX. Network status is reported as in the following example: --------------------------------------------------------------- Site # mbuf # bad uptime Number denied routes of site --------------------------------------------------------------- fafnir (1) 0 0 0w 1d 2h 44m 20s werth (2) 0 0 0w 1d 19h 22m 16s atlas (3) 11 0 0w 2d 23h 9m 45s zaniah (4) 0 6 1w 2d 14h 24m 29s snap (5) 0 6225 0w 0d 9h 43m 37s The "# mbuf denied" and "# bad routes" values are the error counters also returned by the netstat command. The status of all interfaces on selected sites is reported in the same format as ifconfig command output, as in the following example: Processed November 8, 1990 NCCHECK(8,C) 2 NCCHECK(8,C) AIX Commands Reference NCCHECK(8,C) The Net Interface Status and Address for site fafnir (1): ------------------------------------------------- il0: flags=22 metric 0 inet 0.0.0.0 netmask 0 broadcast 0.0.0.0 ceti0: flags=463 metric 4 inet 130.200.6.1 netmask ffff0000 broadcast 130.200.255.255 vctc0: flags=10 metric 0 inet 0.0.0.0 netmask 0 broadcast 0.0.0.0 FLAGS -A Prepares an extended report. -L Gathers data from the local site only. -s site # Gathers data from the specified sites. The default action is to prepare network parameter reports for all sites in the cluster. FILES /usr/bin/ncbe Data collector program. RELATED INFORMATION See the following commands: "netparams" and "lnetstat." In the AIX TCP/IP User's Guide, see the following commands: ifconfig and netstat. Processed November 8, 1990 NCCHECK(8,C) 3