| Event Id | 4 |
| Source | SNA Server |
| Description | Description: (1133) Message Sequence Error |
| Event Information | According to Microsoft : CAUSE This has only been reported on SNA Servers with 802.2 connections to IBM 3174 Control Units on Ethernet networks. The problem occurs because a 3174 Ethernet gateway may send a duplicate SNA sequence number to the SNA Server when the 3174 is handling an SNA frame between 1490 and 1493 bytes in size. This leads to a condition where a frame may be re-sent by the 3174 causing the symptoms discussed previously. In addition, the problem only occurs if the 3174 is running 3174 Microcode Level C6.1 or C6.2. RESOLUTION A fix for this problem is available from IBM. Contact IBM support and request IBM 3174 PTR #B27E. |
| Reference Links | 3270 sessions unexpectedly return to SSCP screen |
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