A fix is available
APAR status
Closed as program error.
Error description
When the Telnet Server reaches the maximum number of Sockets that it is allowed to open (MAXSOCKETS value), the server will issue message: EZZ6003I TN3270E QUIESCED ON PORT nnn At timed intervals, the server will attempt to create a new socket by issuing an ACCEPT. If the ACCEPT works, then the Telnet Server issues message: EZZ6003I TN3270E RESUMED ON PORT nnn At this point, normal operations are back in effect. However, if another type error occurred when the server issued an ACCEPT it may exit the retry loop in error preventing the server from reverting back to normal operations.
Local fix
Issue an OBEYFILE command to the Telnet Server. When the server processes the OBEYFILE command, it will rebuild it's entire internal structure including new ports for incoming connection requests. Additional Symptoms: SOMAXCONN MAXSOCKET EZZ6012I TN3270E BPX4AIO ACCEPT FAILED, RC = 0000007F RSN = 1102024D EZZ6003I TN3270E QUIESCED ON PORT nnnn . ReasonCode: 1102024 ErrnoJr: 589 JRMAXSOCKETS Explanation: The number of active sockets is equal to the value specified on the MAXSOCKETS parmlib statement.
Problem summary
**************************************************************** * USERS AFFECTED: * * All users of the IBM Communications Server * * z/OS Version 2 Releases 1 and 2: IP Telnet facilities * **************************************************************** * PROBLEM DESCRIPTION: * * Telnet Port hangs when it stops issuing Accepts * **************************************************************** * RECOMMENDATION: * * Apply PTF * **************************************************************** The problem may be summarized as follows: 1. The Telnet server is up and accepting connections 2. A flood of connections comes in, resulting in a MAXSOCKETS error condition 3. Telnet stops accepting connections on the port and does not resume when the MAXSOCKETS condition is alleviated.
Problem conclusion
EZBTTMST is updated to ensure that Telnet will resume accepting connections.
Temporary fix
Comments
APAR Information
APAR number
PI71325
Reported component name
TCP/IP V3 MVS
Reported component ID
5655HAL00
Reported release
210
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-10-27
Closed date
2016-11-04
Last modified date
2017-05-15
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI42316 UI42317
Modules/Macros
EZBTTMST
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.
[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"210","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSCY4DZ","label":"DO NOT USE"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"210","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
15 May 2017