Hello there,
we use Tru64Unix 4.0f, ASDU 4.0a and WNT 4.0 (SP 5).
We seem to have serious problems with the VC-management
of the ASDU server. Sometimes the transport between
both systems starts to get terribly slow, because the
ASDU system takes a nap between each 1.5k packet.
Has anyone seen a comparable behaviour and knows a solution?
In the following WPPC01 denotes the WNT System and wpduasdu is the
ASDU Server on Digital Unix.
Example Transport from Digital Unix to NT
Complete transfer time for 10 Mb >15 min.
Network Monitor trace Thu 08/12/99 17:33:43 asduto01.TXT
Frame Time Src MAC Addr Dst MAC Addr Protocol Description Src Other Addr Dst Other Addr Type Other Addr
1 2.270 WPPC01 wpduasdu NBT NS: Query (Node Status) resp. for WHEP <00>, Success WPPC01 wpduasdu IP
2 7.842 WPPC01 wpduasdu SMB C transact2 Findfirst, File = \lmxadmin WPPC01 wpduasdu IP
3 7.855 wpduasdu WPPC01 SMB R transact2 Findfirst (response to frame 2) wpduasdu WPPC01 IP
4 7.856 WPPC01 wpduasdu SMB C check path, File = \Lmxadmin WPPC01 wpduasdu IP
5 7.872 wpduasdu WPPC01 SMB R check path wpduasdu WPPC01 IP
6 7.873 WPPC01 wpduasdu SMB C transact2 Findfirst, File = \Lmxadmin\prag.ps WPPC01 wpduasdu IP
7 7.898 wpduasdu WPPC01 SMB R transact2 Findfirst (response to frame 6) wpduasdu WPPC01 IP
8 7.912 WPPC01 wpduasdu SMB C check path, File = \lmxadmin WPPC01 wpduasdu IP
9 7.915 wpduasdu WPPC01 SMB R check path wpduasdu WPPC01 IP
10 7.916 WPPC01 wpduasdu SMB C transact2 Findfirst, File = \lmxadmin\prag.ps WPPC01 wpduasdu IP
11 7.929 wpduasdu WPPC01 SMB R transact2 Findfirst (response to frame 10) wpduasdu WPPC01 IP
12 7.931 WPPC01 wpduasdu SMB C transact2 Query file info, FID = 0x5 WPPC01 wpduasdu IP
13 7.933 wpduasdu WPPC01 SMB R transact2 Query file info (response to frame 12) wpduasdu WPPC01 IP
14 7.934 WPPC01 wpduasdu SMB C transact2 Query file info, FID = 0x5 WPPC01 wpduasdu IP
15 7.937 wpduasdu WPPC01 SMB R transact2 Query file info (response to frame 14) wpduasdu WPPC01 IP
16 7.937 WPPC01 wpduasdu SMB C transact2 Query file info, FID = 0x5 WPPC01 wpduasdu IP
17 7.940 wpduasdu WPPC01 SMB R transact2 Query file info (response to frame 16) wpduasdu WPPC01 IP
18 7.962 WPPC01 wpduasdu SMB C read & X, FID = 0x5, Read 0x10c5 at 0x0001E000 WPPC01 wpduasdu IP
19 7.963 wpduasdu WPPC01 NBT SS: Session Message Cont., 1460 Bytes wpduasdu WPPC01 IP
20 7.963 WPPC01 wpduasdu TCP .A...., len: 0, seq: 11052522-11052522, ack: 67515981, win: WPPC01 wpduasdu IP
21 7.963 wpduasdu WPPC01 NBT SS: Session Message Cont., 1437 Bytes wpduasdu WPPC01 IP
22 7.963 WPPC01 wpduasdu TCP .A...., len: 0, seq: 11052522-11052522, ack: 67515981, win: WPPC01 wpduasdu IP
23 9.495 wpduasdu WPPC01 SMB R read & X, Read 0x10c5 wpduasdu WPPC01 IP
24 9.495 wpduasdu WPPC01 NBT SS: Session Message Cont., 1460 Bytes wpduasdu WPPC01 IP
25 9.495 WPPC01 wpduasdu TCP .A...., len: 0, seq: 11052522-11052522, ack: 67520338, win: WPPC01 wpduasdu IP
26 9.495 WPPC01 wpduasdu SMB C read & X, FID = 0x5, Read 0x10c5 at 0x0001F0C5 WPPC01 wpduasdu IP
27 9.496 wpduasdu WPPC01 SMB R read & X, Read 0x10c5 wpduasdu WPPC01 IP
28 9.496 wpduasdu WPPC01 NBT SS: Session Message Cont., 1460 Bytes wpduasdu WPPC01 IP
29 9.496 WPPC01 wpduasdu TCP .A...., len: 0, seq: 11052586-11052586, ack: 67523258, win: WPPC01 wpduasdu IP
30 9.985 WPPC01 wpduasdu SMB C transact2 Query path info, File = \lmxadmin WPPC01 wpduasdu IP
31 10.092 wpduasdu WPPC01 SMB R transact2 Query path info (response to frame 30) wpduasdu WPPC01 IP
32 10.093 WPPC01 wpduasdu TCP .A...., len: 0, seq: 11052684-11052684, ack: 67523258, win: WPPC01 wpduasdu IP
33 11.288 wpduasdu WPPC01 NBT SS: Session Message Cont., 1460 Bytes wpduasdu WPPC01 IP
34 11.288 wpduasdu WPPC01 NBT SS: Session Message Cont., 77 Bytes wpduasdu WPPC01 IP
35 11.288 WPPC01 wpduasdu TCP .A...., len: 0, seq: 11052684-11052684, ack: 67524795, win: WPPC01 wpduasdu IP
36 11.289 WPPC01 wpduasdu TCP .A...., len: 0, seq: 11052684-11052684, ack: 67524795, win: WPPC01 wpduasdu IP
37 11.289 WPPC01 wpduasdu SMB C read & X, FID = 0x5, Read 0x10c5 at 0x0002018A WPPC01 wpduasdu IP
38 11.290 wpduasdu WPPC01 SMB R read & X, Read 0x10c5 wpduasdu WPPC01 IP
39 11.290 wpduasdu WPPC01 NBT SS: Session Message Cont., 1460 Bytes wpduasdu WPPC01 IP
40 11.290 WPPC01 wpduasdu TCP .A...., len: 0, seq: 11052748-11052748, ack: 67527715, win: WPPC01 wpduasdu IP
41 11.291 WPPC01 wpduasdu SMB C transact2 Query path info, File = \lmxadmin WPPC01 wpduasdu IP
42 11.487 wpduasdu WPPC01 SMB R transact2 (Unknown) (response) wpduasdu WPPC01 IP
43 11.487 WPPC01 wpduasdu TCP .A...., len: 0, seq: 11052846-11052846, ack: 67527715, win: WPPC01 wpduasdu IP
44 13.081 wpduasdu WPPC01 NBT SS: Session Message Cont., 1460 Bytes wpduasdu WPPC01 IP
45 13.082 wpduasdu WPPC01 NBT SS: Session Message Cont., 77 Bytes wpduasdu WPPC01 IP
46 13.082 WPPC01 wpduasdu TCP .A...., len: 0, seq: 11052846-11052846, ack: 67529252, win: WPPC01 wpduasdu IP
47 13.082 WPPC01 wpduasdu TCP .A...., len: 0, seq: 11052846-11052846, ack: 67529252, win: WPPC01 wpduasdu IP
48 13.082 WPPC01 wpduasdu SMB C read & X, FID = 0x5, Read 0x10c5 at 0x0002124F WPPC01 wpduasdu IP
49 13.083 wpduasdu WPPC01 SMB R read & X, Read 0x10c5 wpduasdu WPPC01 IP
......
Example Transport from NT to Unix (same file as above)
Complete Transfer Time for 10 Mb: < 5 sec.
Network Monitor trace Thu 08/12/99 17:41:55 Capture1.TXT
Frame Time Src MAC Addr Dst MAC Addr Protocol Src Other Addr Description Dst Other Addr Type Other Addr
1 43.800 WPPC01 wpduasdu NBT WPPC01 SS: Session Message Cont., 1460 Bytes wpduasdu IP
2 43.800 WPPC01 wpduasdu NBT WPPC01 SS: Session Message Cont., 1460 Bytes wpduasdu IP
3 43.800 WPPC01 wpduasdu NBT WPPC01 SS: Session Message Cont., 1460 Bytes wpduasdu IP
4 43.800 WPPC01 wpduasdu NBT WPPC01 SS: Session Message Cont., 1460 Bytes wpduasdu IP
5 43.800 WPPC01 wpduasdu NBT WPPC01 SS: Session Message Cont., 1460 Bytes wpduasdu IP
6 43.800 WPPC01 wpduasdu NBT WPPC01 SS: Session Message Cont., 1460 Bytes wpduasdu IP
7 43.800 WPPC01 wpduasdu NBT WPPC01 SS: Session Message Cont., 1460 Bytes wpduasdu IP
8 43.800 WPPC01 wpduasdu NBT WPPC01 SS: Session Message Cont., 1460 Bytes wpduasdu IP
9 43.800 WPPC01 wpduasdu NBT WPPC01 SS: Session Message Cont., 212 Bytes wpduasdu IP
10 43.802 wpduasdu WPPC01 TCP wpduasdu .A...., len: 0, seq: 68983986-68983986, ack: 37109412, win:33580, src: 139 (NBT Session) WPPC01 IP
11 43.802 wpduasdu WPPC01 TCP wpduasdu .A...., len: 0, seq: 68983986-68983986, ack: 37112332, win:33580, src: 139 (NBT Session) WPPC01 IP
12 43.802 wpduasdu WPPC01 TCP wpduasdu .A...., len: 0, seq: 68983986-68983986, ack: 37115252, win:33580, src: 139 (NBT Session) WPPC01 IP
13 43.802 wpduasdu WPPC01 TCP wpduasdu .A...., len: 0, seq: 68983986-68983986, ack: 37118172, win:33580, src: 139 (NBT Session) WPPC01 IP
14 43.802 wpduasdu WPPC01 TCP wpduasdu .A...., len: 0, seq: 68983986-68983986, ack: 37121092, win:33580, src: 139 (NBT Session) WPPC01 IP
15 43.802 wpduasdu WPPC01 TCP wpduasdu .A...., len: 0, seq: 68983986-68983986, ack: 37124012, win:33580, src: 139 (NBT Session) WPPC01 IP
16 43.802 wpduasdu WPPC01 TCP wpduasdu .A...., len: 0, seq: 68983986-68983986, ack: 37126932, win:33580, src: 139 (NBT Session) WPPC01 IP
17 43.802 wpduasdu WPPC01 TCP wpduasdu .A...., len: 0, seq: 68983986-68983986, ack: 37130064, win:33580, src: 139 (NBT Session) WPPC01 IP
18 43.803 WPPC01 wpduasdu SMB WPPC01 C write block raw, FID = 0x27, Write 0x10c4 of 0xf000 at 0x98d000 wpduasdu IP
19 43.803 WPPC01 wpduasdu NBT WPPC01 SS: Session Message Cont., 1460 Bytes wpduasdu IP
20 43.803 WPPC01 wpduasdu NBT WPPC01 SS: Session Message Cont., 1440 Bytes wpduasdu IP
21 43.804 wpduasdu WPPC01 TCP wpduasdu .A...., len: 0, seq: 68983986-68983986, ack: 37132984, win:33580, src: 139 (NBT Session) WPPC01 IP
22 43.903 wpduasdu WPPC01 SMB wpduasdu R write block raw WPPC01 IP
23 43.906 WPPC01 wpduasdu NBT WPPC01 SS: Session Message, Len: 57148 wpduasdu IP
24 43.906 WPPC01 wpduasdu NBT WPPC01 SS: Session Message Cont., 1460 Bytes wpduasdu IP
25 43.906 WPPC01 wpduasdu NBT WPPC01 SS: Session Message Cont., 1460 Bytes wpduasdu IP
......
Any help is welcome.
Thanks in advance.
Oliver Klapp and Ralf Reinhardt
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Oliver Klapp
UNIX System and Network Administrator
University of Wuppertal | DELPHI-Collaboration
Inst. of Physics | Division EP
Gaussstr.20 | CERN
42097 Wuppertal | CH-1211 Geneve 23
Tel.: ++49 +202/439-2638
Fax : ++49 +202/439-2811
e-Mail: Klapp_at_WHEP.uni-wuppertal.de
or Oliver.Klapp_at_CERN.CH
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Received on Thu Aug 12 1999 - 19:48:03 NZST