| Title: | DECnet/OSI for OpenVMS |
| Moderator: | TUXEDO::FONSECA |
| Created: | Thu Feb 21 1991 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 3990 |
| Total number of notes: | 19027 |
Hi, Can somebody give me some idea where to search for this problem: One VMS system is regularely logging some DECnet events: %%%%%%%%%%% OPCOM 23-JAN-1997 20:58:02.93 %%%%%%%%%% Message from user SYSTEM on ARCSHM Event: Corrupted Hello PDU Received from: Node LOCAL:.CNA.ARCSHM Routing Circuit ISA-0, at: 1997-01-23-20:58:02.926+00:00Iinf PDU Header='8215010002070800000010A40007AA0004001A1C21000000000000000000 0000000000000000000000000'H eventUid 5DC6A158-7563-11D0-82F5-08002B9B8CFB entityUid B5B1C4A0-AE40-11CF-8002-AA000400181C streamUid BF213C00-AE40-11CF-8002-AA000400181C and Node 0 Routing Circuit ISA-0 at 1997-01-23-23-20:56:44.646+01:000Iinf Counters Data PDUs Received = 20865139 Data PDUs Fragmented = 0 Data PDUs Transmitted = 39415638 Segmentation Failure Discards = 0 Circuit Changes = 1 Initialisation Failures = 0 Control PDUs Sent = 90409 Control PDUs Received = 726351 Corrupted Hello PDUs Received = 51356 Creation Time = 1996-05-15-11:58:36.650+02:00Iinf Looking at csma-cd station, there are no physical errors An answer will be appreciated Thanks in advance, Roberr
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 3861.1 | corrupt ES hello from 7.26 | MARVIN::RIGBY | No such thing as an alpha beta | Wed Feb 05 1997 10:35 | 15 |
It looks like an ES hello that has been corrupted.
Where the ES address count should be, there is a 0. If we replace the 000001a4
by 00010a49 it would look much more reasonable:
dtf/pipe/ty=osi/fu/nohigh/nohead "821501000207080000010A490007AA0004001A1C21
OSI packet type: ES hello
-------------------------
Header length 21
Holding time 1800
Checksum 0x0000
Source Address 490007AA0004001A1C21
This would appear to be from 7.26
| |||||
| 3861.2 | Sorry Typing error | BACHUS::VANDENBERGHE | Wed Feb 05 1997 12:49 | 6 | |
Sorry it was my fault I incorrectly type the message which is containing 10A490007 So This is not the problem. | |||||
| 3861.3 | Check out the packets from the apparant source | MARVIN::RIGBY | No such thing as an alpha beta | Thu Feb 06 1997 04:31 | 10 |
That still leaves the hello coming from 7.26. The trailing 0s aren't expected. I would suggest using a LAN analyser to capture packets from 7.26 (especially to the 9542 IS multicast 09-00-2b-00-00-05). If there are a lot of trailing zeros which the ISO length field doesn't exclude then I would suspect that there is something wrong with the end-system or some bridge between the router and it. | |||||