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Hello Michael (and others)
I am working with Marjan Bozinovski on a project using rsplib sctplib and
friends. The project consists of three instances of a server communicating
in
a chain and a client. The client sends requests to one server, and the
message
is passed through the chain to the other end and then back the same way. At
some random point in the chain the communication stops or gets stuck. That is
out main problem. We think that it has to do with the handling of sockets by
the rsplib/socketapi because it is either when receiving data or when
establishing a connection the error occours. That is our biggest problem for
the time being.


One of the formerly mentioned servers should be registered at an r-serpool
nameserver as pool element. This does not happen, we have set up the
nameserver
to run with multicast as specified in the README. The PE recieves the server
announcment but does not recognize it or something. We tried to run the
rsplib
example program on the same machine with the same results. I will add output
from the example program and output from "ifconfig" in the bottom. Our
problem
could be some simple thing like some setup being made in a wrong way. We are
really stuck with theese problems and cannot see how to get on with our work.
So any help would be apreciated...

Thanks in advance, regards Erling Matthiesen


output from ifconfig:

eth0 Link encap:Ethernet HWaddr 00:30:05:10:1B:95
inet addr:192.168.1.4 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::230:5ff:fe10:1b95/10 Scope:Link
UP BROADCAST NOTRAILERS RUNNING MTU:1500 Metric:1
RX packets:20 errors:0 dropped:0 overruns:0 frame:0
TX packets:47 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:932 (932.0 b) TX bytes:4070 (3.9 Kb)
Interrupt:9 Base address:0x4400 Memory:c9257000-c9257c40

eth1 Link encap:Ethernet HWaddr 00:04:76:27:27:2D
inet addr:192.168.2.4 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::204:76ff:fe27:272d/10 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1768 errors:0 dropped:0 overruns:0 frame:0
TX packets:699 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:131022 (127.9 Kb) TX bytes:62106 (60.6 Kb)
Interrupt:9 Base address:0x4800


Output from examplepe pool -sctp


04-Jul-2003 12:37:18.8704: loglevel.c:122 beginLogging() - Logging
started, log level is 9.
04-Jul-2003 12:37:18.8708: asapinstance.c:163 asapConfigure() - 
[36mThere is no ASAP instance configuration file. Using defaults.
04-Jul-2003 12:37:18.8708: asapinstance.c:168 asapConfigure() - 
[33mNew ASAP instance configuration:
cache.elementtimeout = 30000000 [µs]
cache.mtinterval = 1000000 [µs]
nameserver.connect.maxtrials = 3
nameserver.connect.timeout = 7500000 [µs]
nameserver.request.maxtrials = 3
nameserver.request.timeout = 5000000 [µs]
nameserver.response.timeout = 4500000 [µs]
nameserver.announce.timeout = 5000000 [µs]
nameserver.announce.mtinterval = 1000000 [µs]
04-Jul-2003 12:37:18.8713: servertable.c:119 joinAnnounceGroups() -

[93mRead string <ipv4-announce 239.0.0.1:9999>
04-Jul-2003 12:37:18.8718: netutilities.c:686 bindplus() - 
[93mBinding socket...
04-Jul-2003 12:37:18.8750: netutilities.c:719 bindplus() - 
[37mTrying port 19466...
04-Jul-2003 12:37:18.8755: netutilities.c:731 bindplus() - 
[93mSuccessfully bound
04-Jul-2003 12:37:18.8760: tagitem.c:98 tagListFind() -
Looking
for tag #1004...
04-Jul-2003 12:37:18.8761: tagitem.c:104 tagListFind() - Tag
found
04-Jul-2003 12:37:18.8762: tagitem.c:129 tagListGetData() -
Get
value 1 ($1) for tag #1004
04-Jul-2003 12:37:18.8763: tagitem.c:98 tagListFind() -
Looking
for tag #1005...
04-Jul-2003 12:37:18.8763: tagitem.c:104 tagListFind() - Tag
found
04-Jul-2003 12:37:18.8764: tagitem.c:129 tagListGetData() -
Get
value 1 ($1) for tag #1005
04-Jul-2003 12:37:18.8765: tagitem.c:98 tagListFind() -
Looking
for tag #1006...
04-Jul-2003 12:37:18.8766: tagitem.c:104 tagListFind() - Tag
found
04-Jul-2003 12:37:18.8767: tagitem.c:129 tagListGetData() -
Get
value 0 ($0) for tag #1006
04-Jul-2003 12:37:18.8768: netutilities.c:422 addresscmp() - 
[37mComparing fe80::230:5ff:fe10:1b95:19466 and fe80::204:76ff:fe27:272d:19466
04-Jul-2003 12:37:18.8769: netutilities.c:481 addresscmp() - 
[37mResult: greater-than
04-Jul-2003 12:37:18.8770: netutilities.c:422 addresscmp() - 
[37mComparing ::1:19466 and fe80::204:76ff:fe27:272d:19466
04-Jul-2003 12:37:18.8772: netutilities.c:445 addresscmp() - 
[37mResult: greater-than, s1=999998 s2=999996
04-Jul-2003 12:37:18.8773: netutilities.c:422 addresscmp() - 
[37mComparing ::1:19466 and fe80::230:5ff:fe10:1b95:19466
04-Jul-2003 12:37:18.8774: netutilities.c:445 addresscmp() - 
[37mResult: greater-than, s1=999998 s2=999996
04-Jul-2003 12:37:18.8775: netutilities.c:422 addresscmp() - 
[37mComparing 192.168.1.4:19466 and 192.168.2.4:19466
04-Jul-2003 12:37:18.8776: netutilities.c:481 addresscmp() - 
[37mResult: less-than
04-Jul-2003 12:37:18.8777: netutilities.c:422 addresscmp() - 
[37mComparing 127.0.0.1:19466 and 192.168.1.4:19466
04-Jul-2003 12:37:18.8778: netutilities.c:445 addresscmp() - 
[37mResult: greater-than, s1=999998 s2=999994
04-Jul-2003 12:37:18.8779: netutilities.c:422 addresscmp() - 
[37mComparing 127.0.0.1:19466 and 192.168.2.4:19466
04-Jul-2003 12:37:18.8780: netutilities.c:445 addresscmp() - 
[37mResult: greater-than, s1=999998 s2=999994
04-Jul-2003 12:37:18.8781: netutilities.c:422 addresscmp() - 
[37mComparing fe80::204:76ff:fe27:272d:19466 and 192.168.1.4:19466
04-Jul-2003 12:37:18.8783: netutilities.c:445 addresscmp() - 
[37mResult: greater-than, s1=999996 s2=999994
04-Jul-2003 12:37:18.8784: netutilities.c:422 addresscmp() - 
[37mComparing fe80::204:76ff:fe27:272d:19466 and 192.168.2.4:19466
04-Jul-2003 12:37:18.8785: netutilities.c:445 addresscmp() - 
[37mResult: greater-than, s1=999996 s2=999994
04-Jul-2003 12:37:18.8786: netutilities.c:422 addresscmp() - 
[37mComparing fe80::204:76ff:fe27:272d:19466 and 127.0.0.1:19466
04-Jul-2003 12:37:18.8788: netutilities.c:439 addresscmp() - 
[37mResult: less-than, s1=999996 s2=999998
04-Jul-2003 12:37:18.8789: netutilities.c:422 addresscmp() - 
[37mComparing fe80::230:5ff:fe10:1b95:19466 and 127.0.0.1:19466
04-Jul-2003 12:37:18.8790: netutilities.c:439 addresscmp() - 
[37mResult: less-than, s1=999996 s2=999998
04-Jul-2003 12:37:18.8791: netutilities.c:422 addresscmp() - 
[37mComparing ::1:19466 and 127.0.0.1:19466
04-Jul-2003 12:37:18.8792: netutilities.c:481 addresscmp() - 
[37mResult: less-than
04-Jul-2003 12:37:18.8793: poolelement.c:201
poolElementAddTransportAddress() - Adding address { 192.168.1.4,
192.168.2.4, fe80::204:76ff:fe27:272d, fe80::230:5ff:fe10:1b95, ::1,
127.0.0.1 } 19466/SCTP to pool element $b7d03bea
04-Jul-2003 12:37:18.8796: rsplib.c:238 rspRegister() - Trying
to register Pool Element $b7d03bea:
Home ENRP ID = $00000000
Reg. Lifetime = -1 [s]
Flags = none
UserCounter = 0
Policy = Round-Robin
{ 192.168.1.4, 192.168.2.4, fe80::204:76ff:fe27:272d,
fe80::230:5ff:fe10:1b95, ::1, 127.0.0.1 } 19466/SCTP
04-Jul-2003 12:37:18.8800: asapinstance.c:411 asapRegister() - 
[34mTrying to register Pool Element $b7d03bea:
Home ENRP ID = $00000000
Reg. Lifetime = -1 [s]
Flags = none
UserCounter = 0
Policy = Round-Robin
{ 192.168.1.4, 192.168.2.4, fe80::204:76ff:fe27:272d,
fe80::230:5ff:fe10:1b95, ::1, 127.0.0.1 } 19466/SCTP
to pool "pool"
04-Jul-2003 12:37:18.8805: asapinstance.c:342 asapIO() -
Request
trial #1 - sending request...
04-Jul-2003 12:37:18.8806: servertable.c:650
serverTableFindServer() -
Looking for nameserver...
04-Jul-2003 12:37:18.8808: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# Unicast nameserver addresses>
04-Jul-2003 12:37:18.8809: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# nameserver 127.0.0.1:9999 tcp>
04-Jul-2003 12:37:18.8810: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# nameserver 127.0.0.1:9999 sctp>
04-Jul-2003 12:37:18.8810: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# nameserver 10.0.0.1:9999 sctp>
04-Jul-2003 12:37:18.8811: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# Multicast nameserver addresses>
04-Jul-2003 12:37:18.8812: servertable.c:467 updateStaticEntries()
- 
[93mRead string <#nameserver 239.0.0.1:9999 multicast permanent>
04-Jul-2003 12:37:18.8813: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# Unicast nameserver addresses>
04-Jul-2003 12:37:18.8814: servertable.c:467 updateStaticEntries()
- 
[93mRead string <#nameserver 192.168.2.3:9999 sctp>
04-Jul-2003 12:37:18.8815: servertable.c:467 updateStaticEntries()
- 
[93mRead string <#nameserver 192.168.1.3:9999 sctp>
04-Jul-2003 12:37:18.8816: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# Unicast nameserver addresses>
04-Jul-2003 12:37:18.8817: servertable.c:467 updateStaticEntries()
- 
[93mRead string <#nameserver 192.168.2.1:9999 sctp>
04-Jul-2003 12:37:18.8818: servertable.c:467 updateStaticEntries()
- 
[93mRead string <#nameserver 192.168.1.1:9999 sctp>
04-Jul-2003 12:37:18.8819: servertable.c:683
serverTableFindServer() -
Trial #1...
04-Jul-2003 12:37:18.8820: servertable.c:721
serverTableFindServer() -
select() with timeout 7500000
04-Jul-2003 12:37:19.6935: servertable.c:727
serverTableFindServer() -
select() result=1
04-Jul-2003 12:37:19.6936: servertable.c:244
receiveServerAnnounce() -
Reading response from socket 1023...
04-Jul-2003 12:37:19.6937: asapparser.c:1257 asapPacket2Message() -

[33mScanning message, size=20...
04-Jul-2003 12:37:19.6938: asapparser.c:1168 scanMessage() - 
[34mScanning ServerAnnounce message...
04-Jul-2003 12:37:19.6939: asapparser.c:65 getNextTLV() - TLV:
Type $0003, length 16 at position 8
04-Jul-2003 12:37:19.6941: asapparser.c:65 getNextTLV() - TLV:
Type $0001, length 8 at position 16
04-Jul-2003 12:37:19.6942: asapparser.c:450
scanTransportParameter() -
Scanned address 1.
04-Jul-2003 12:37:19.6943: asapparser.c:472
scanTransportParameter() -
New TransportAddress: { 0.0.0.0 } 9999/SCTP.
04-Jul-2003 12:37:19.6944: asapparser.c:1263 asapPacket2Message() -

[33mMessage successfully scanned!
04-Jul-2003 12:37:19.6945: servertable.c:266
receiveServerAnnounce() -
ServerAnnounce from 192.168.2.3:1082 received
04-Jul-2003 12:37:19.6946: servertable.c:200 addServer() - Try
adding ServerAnnounce:
Server Announce:
Last Update = 0.000 [s] ago
Flags = Dynamic
Addresses = { 0.0.0.0 } 9999/SCTP

04-Jul-2003 12:37:19.6949: servertable.c:220 addServer() - New
ServerAnnounce successfully added:
Server Announce:
Last Update = 0.000 [s] ago
Flags = Dynamic
Addresses = { 0.0.0.0 } 9999/SCTP

04-Jul-2003 12:37:19.6952: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# Unicast nameserver addresses>
04-Jul-2003 12:37:19.6953: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# nameserver 127.0.0.1:9999 tcp>
04-Jul-2003 12:37:19.6953: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# nameserver 127.0.0.1:9999 sctp>
04-Jul-2003 12:37:19.6954: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# nameserver 10.0.0.1:9999 sctp>
04-Jul-2003 12:37:19.6955: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# Multicast nameserver addresses>
04-Jul-2003 12:37:19.6956: servertable.c:467 updateStaticEntries()
- 
[93mRead string <#nameserver 239.0.0.1:9999 multicast permanent>
04-Jul-2003 12:37:19.6957: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# Unicast nameserver addresses>
04-Jul-2003 12:37:19.6958: servertable.c:467 updateStaticEntries()
- 
[93mRead string <#nameserver 192.168.2.3:9999 sctp>
04-Jul-2003 12:37:19.6959: servertable.c:467 updateStaticEntries()
- 
[93mRead string <#nameserver 192.168.1.3:9999 sctp>
04-Jul-2003 12:37:19.6960: servertable.c:467 updateStaticEntries()
- 
[93mRead string <# Unicast nameserver addresses>
04-Jul-2003 12:37:19.6961: servertable.c:467 updateStaticEntries()
- 
[93mRead string <#nameserver 192.168.2.1:9999 sctp>
04-Jul-2003 12:37:19.6961: servertable.c:467 updateStaticEntries()
- 
[93mRead string <#nameserver 192.168.1.1:9999 sctp>
04-Jul-2003 12:37:19.6963: servertable.c:683
serverTableFindServer() -
Trial #2...
04-Jul-2003 12:37:19.6964: servertable.c:584 tryNextBlock() - 
[33mConnecting socket 1020 to 0.0.0.0:9999 via SCTP...
04-Jul-2003 12:37:19.6968: servertable.c:721
serverTableFindServer() -
select() with timeout 7500000
04-Jul-2003 12:37:21.7053: servertable.c:727
serverTableFindServer() -
select() result=1
04-Jul-2003 12:37:21.7054: servertable.c:244
receiveServerAnnounce() -
Reading response from socket 1023...
04-Jul-2003 12:37:21.7055: asapparser.c:1257 asapPacket2Message() -

[33mScanning message, size=20...
04-Jul-2003 12:37:21.7056: asapparser.c:1168 scanMessage() - 
[34mScanning ServerAnnounce message...
04-Jul-2003 12:37:21.7057: asapparser.c:65 getNextTLV() - TLV:
Type $0003, length 16 at position 8
04-Jul-2003 12:37:21.7058: asapparser.c:65 getNextTLV() - TLV:
Type $0001, length 8 at position 16
04-Jul-2003 12:37:21.7059: asapparser.c:450
scanTransportParameter() -
Scanned address 1.
04-Jul-2003 12:37:21.7060: asapparser.c:472
scanTransportParameter() -
New TransportAddress: { 0.0.0.0 } 9999/SCTP.
04-Jul-2003 12:37:21.7061: asapparser.c:1263 asapPacket2Message() -

[33mMessage successfully scanned!
04-Jul-2003 12:37:21.7062: servertable.c:266
receiveServerAnnounce() -
ServerAnnounce from 192.168.2.3:1082 received
04-Jul-2003 12:37:21.7064: servertable.c:200 addServer() - Try
adding ServerAnnounce:
Server Announce:
Last Update = 0.000 [s] ago
Flags = Dynamic
Addresses = { 0.0.0.0 } 9999/SCTP

04-Jul-2003 12:37:21.7066: netutilities.c:422 addresscmp() - 
[37mComparing 0.0.0.0:9999 and 0.0.0.0:9999
04-Jul-2003 12:37:21.7067: netutilities.c:508 addresscmp() - 
[37mResult: equal
04-Jul-2003 12:37:21.7068: servertable.c:211 addServer() - 
[33mServerAnnounce already in list -> updating timestamp
04-Jul-2003 12:37:21.7069: servertable.c:721
serverTableFindServer() -
select() with timeout 7500000
04-Jul-2003 12:37:23.7204: servertable.c:727
serverTableFindServer() -
select() result=1
04-Jul-2003 12:37:23.7206: servertable.c:244
receiveServerAnnounce() -
Reading response from socket 1023...
04-Jul-2003 12:37:23.7207: asapparser.c:1257 asapPacket2Message() -

[33mScanning message, size=20...
04-Jul-2003 12:37:23.7208: asapparser.c:1168 scanMessage() - 
[34mScanning ServerAnnounce message...
04-Jul-2003 12:37:23.7209: asapparser.c:65 getNextTLV() - TLV:
Type $0003, length 16 at position 8
04-Jul-2003 12:37:23.7209: asapparser.c:65 getNextTLV() - TLV:
Type $0001, length 8 at position 16
04-Jul-2003 12:37:23.7210: asapparser.c:450
scanTransportParameter() -
Scanned address 1.
04-Jul-2003 12:37:23.7211: asapparser.c:472
scanTransportParameter() -
New TransportAddress: { 0.0.0.0 } 9999/SCTP.
04-Jul-2003 12:37:23.7213: asapparser.c:1263 asapPacket2Message() -

[33mMessage successfully scanned!
04-Jul-2003 12:37:23.7214: servertable.c:266
receiveServerAnnounce() -
ServerAnnounce from 192.168.2.3:1082 received
04-Jul-2003 12:37:23.7215: servertable.c:200 addServer() - Try
adding ServerAnnounce:
Server Announce:
Last Update = 0.000 [s] ago
Flags = Dynamic
Addresses = { 0.0.0.0 } 9999/SCTP

04-Jul-2003 12:37:23.7217: netutilities.c:422 addresscmp() - 
[37mComparing 0.0.0.0:9999 and 0.0.0.0:9999
04-Jul-2003 12:37:23.7218: netutilities.c:508 addresscmp() - 
[37mResult: equal
04-Jul-2003 12:37:23.7219: servertable.c:211 addServer() - 
[33mServerAnnounce already in list -> updating timestamp
04-Jul-2003 12:37:23.7220: servertable.c:721
serverTableFindServer() -
select() with timeout 7500000
04-Jul-2003 12:37:25.7356: servertable.c:727
serverTableFindServer() -
select() result=1
04-Jul-2003 12:37:25.7358: servertable.c:244
receiveServerAnnounce() -
Reading response from socket 1023...
04-Jul-2003 12:37:25.7359: asapparser.c:1257 asapPacket2Message() -

[33mScanning message, size=20...
04-Jul-2003 12:37:25.7360: asapparser.c:1168 scanMessage() - 
[34mScanning ServerAnnounce message...
04-Jul-2003 12:37:25.7360: asapparser.c:65 getNextTLV() - TLV:
Type $0003, length 16 at position 8
04-Jul-2003 12:37:25.7361: asapparser.c:65 getNextTLV() - TLV:
Type $0001, length 8 at position 16
04-Jul-2003 12:37:25.7362: asapparser.c:450
scanTransportParameter() -
Scanned address 1.
04-Jul-2003 12:37:25.7363: asapparser.c:472
scanTransportParameter() -
New TransportAddress: { 0.0.0.0 } 9999/SCTP.
04-Jul-2003 12:37:25.7365: asapparser.c:1263 asapPacket2Message() -

[33mMessage successfully scanned!
04-Jul-2003 12:37:25.7366: servertable.c:266
receiveServerAnnounce() -
ServerAnnounce from 192.168.2.3:1082 received

---

• [RSPlib-Discusssion] Help with multicast, evma01, 07/04/2003
  • Re: [RSPlib-Discusssion] Help with multicast, Thomas Dreibholz, 07/11/2003

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