A fix is available
APAR status
Closed as program error.
Error description
After a STOP and START of an interface, the NETSTAT DEVLINK output does not show the correct subnet mask. The subnet mask should be obtained from the subnet_mask parameter on the OSPF_INTERFACE statement in the OMPROUTE configuration file. However , the mask in the display is the default subnet mask associated with the class of the IP address. Problem occurs when a DVIPA or XCF interface is configured first in the OMPROUTE configuration file.
Local fix
Reorder the OSPF_INTERFACES in the OMPROUTE configuration file so that the physical interfaces are in front of the dynamic interfaces.
Problem summary
**************************************************************** * USERS AFFECTED: All users of the IBM Communications Server * * for z/OS Version 1 Release(s) 11, and * * 12 IP: NETSTAT and OMPROUTE * **************************************************************** * PROBLEM DESCRIPTION: Subnet mask is sometimes incorrect in * * output of NETSTAT DEVLINK depending * * on OMPROUTE configuration * **************************************************************** * RECOMMENDATION: * **************************************************************** After a STOP and START of an interface, the NETSTAT DEVLINK output does not show the correct subnet mask. The subnet mask should be obtained from the subnet_mask parameter on the OSPF_INTERFACE statement in the OMPROUTE configuration file. However, the mask in the display is the default subnet mask associated with the class of the IP address. Problem occurs when a DVIPA or XCF interface is configured first in the OMPROUTE configuration file. When the stack processes the OMPROUTE configuration information it only processes the interface values for the first interface. So, the default subnet mask was assigned to the other interfaces. This default subnet mask was later displayed by the NETSTAT DEVLINKS command. +-------------------------------------------------------------+ + Please check our Communications Server for OS/390 homepages + + for common networking tips and fixes. The URL for these + + homepages can be found in Informational APAR II11334. + +-------------------------------------------------------------+
Problem conclusion
The stack support for OMPROUTE configuration information has been modified to correct this problem. **************************************************************** * FUNCTION AFFECTED: Communications Server TCP/IP (PM22437) * * NETSTAT * **************************************************************** * DESCRIPTION : Other * **************************************************************** * TIMING : Post-APPLY * **************************************************************** The PTF requires the TCP/IP stack to be recycled to activate the fix. * Cross Reference between External and Internal Names
Temporary fix
Comments
APAR Information
APAR number
PM22437
Reported component name
TCP/IP V3 MVS
Reported component ID
5655HAL00
Reported release
1B0
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2010-09-14
Closed date
2010-11-08
Last modified date
2011-01-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK61972 UK61973
Modules/Macros
EZBIEPRO
Fix information
Fixed component name
TCP/IP V3 MVS
Fixed component ID
5655HAL00
Applicable component levels
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
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Document Information
Modified date:
03 January 2011