Hi Preeti,
It will be helpful if you can share the log files (using -v option), can you
share the /var/log/messages file that was captured during this tcpdump? That
will help. Did you see any retries for establishing connection with OA?
Thanks,
Elango
From: Preeti Sharma [mailto:[email protected]]
Sent: Thursday, June 16, 2011 4:39 PM
To: Chinnaswamy, Elangoraja
Cc: [email protected]
Subject: RE: [Openhpi-devel] Traffic bet openhpi daemon and OA??
Hi Elangoraja,
Thanks for clarification. I am running only openhpid (no openhpi clients
running). I see continuous messages in TCPDUMP coming and going to OA and these
messages appear very frequent than 3 minutes, what are these: (I am pasting
below logs)
[root@irc1 etc]# tcpdump -i eth0 -vv ip6 src <ipv6 address of OA>
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
18:33:37.987988 IP6 (hlim 63, next-header: TCP (6), length: 40)
jupcutoa1av6.https > 2001:5b0:ffff:fff4:217:a4ff:fe77:2a.52594: S, cksum 0x1da7
(correct), 2030375816:2030375816(0) ack 64742404 win 5712 <mss
1440,nop,nop,timestamp 2277318774 472366580,nop,wscale 6>
18:33:37.988276 IP6 (hlim 63, next-header: TCP (6), length: 32)
jupcutoa1av6.https > 2001:5b0:ffff:fff4:217:a4ff:fe77:2a.52594: ., cksum 0x5e70
(correct), 1:1(0) ack 212 win 106 <nop,nop,timestamp 2277318774 472366580>
18:33:38.107543 IP6 (hlim 63, next-header: TCP (6), length: 1184)
jupcutoa1av6.https > 2001:5b0:ffff:fff4:217:a4ff:fe77:2a.52594: P 1:1153(1152)
ack 212 win 106 <nop,nop,timestamp 2277318804 472366580>
18:33:38.114550 IP6 (hlim 63, next-header: TCP (6), length: 32)
jupcutoa1av6.https > 2001:5b0:ffff:fff4:217:a4ff:fe77:2a.52594: ., cksum 0x587b
(correct), 1153:1153(0) ack 410 win 123 <nop,nop,timestamp 2277318806 472366706>
18:33:38.203905 IP6 (hlim 63, next-header: TCP (6), length: 91)
jupcutoa1av6.https > 2001:5b0:ffff:fff4:217:a4ff:fe77:2a.52594: P 1153:1212(59)
ack 410 win 123 <nop,nop,timestamp 2277318829 472366706>
18:33:38.204545 IP6 (hlim 63, next-header: TCP (6), length: 32)
jupcutoa1av6.https > 2001:5b0:ffff:fff4:217:a4ff:fe77:2a.52594: ., cksum 0x5729
(correct), 1212:1212(0) ack 559 win 140 <nop,nop,timestamp 2277318829 472366796>
18:33:38.204868 IP6 (hlim 63, next-header: TCP (6), length: 32)
jupcutoa1av6.https > 2001:5b0:ffff:fff4:217:a4ff:fe77:2a.52594: ., cksum 0x54b0
(correct), 1212:1212(0) ack 1172 win 159 <nop,nop,timestamp 2277318829
472366797>
18:33:39.047437 IP6 (hlim 63, next-header: TCP (6), length: 970)
jupcutoa1av6.https > 2001:5b0:ffff:fff4:217:a4ff:fe77:2a.52594: P
1212:2150(938) ack 1172 win 159
tcpdump -i eth0 -vv ip6 dst <ipv6 address of OA>
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
18:36:02.909204 IP6 (hlim 64, next-header: TCP (6), length: 181)
2001:5b0:ffff:fff4:217:a4ff:fe77:2a.57054 > jupcutoa1av6.https: P
219776186:219776335(149) ack 2183677272 win 63 <nop,nop,timestamp 472511501
2277355370>
18:36:02.909496 IP6 (hlim 64, next-header: TCP (6), length: 821)
2001:5b0:ffff:fff4:217:a4ff:fe77:2a.57054 > jupcutoa1av6.https: P 149:938(789)
ack 1 win 63 <nop,nop,timestamp 472511502 2277355370>
18:36:03.128248 IP6 (hlim 64, next-header: TCP (6), length: 32)
2001:5b0:ffff:fff4:217:a4ff:fe77:2a.57054 > jupcutoa1av6.https: ., cksum 0x9411
(correct), 938:938(0) ack 2857 win 86 <nop,nop,timestamp 472511720 2277355425>
18:36:03.130181 IP6 (hlim 64, next-header: TCP (6), length: 32)
2001:5b0:ffff:fff4:217:a4ff:fe77:2a.57054 > jupcutoa1av6.https: ., cksum 0x9242
(correct), 938:938(0) ack 3296 win 108 <nop,nop,timestamp 472511722 2277355425>
18:36:03.130226 IP6 (hlim 64, next-header: TCP (6), length: 69)
2001:5b0:ffff:fff4:217:a4ff:fe77:2a.57054 > jupcutoa1av6.https: P 938:975(37)
ack 3296 win 108 <nop,nop,timestamp 472511722 2277355425>
18:36:03.130272 IP6 (hlim 64, next-header: TCP (6), length: 32)
2001:5b0:ffff:fff4:217:a4ff:fe77:2a.57054 > jupcutoa1av6.https: F, cksum 0x921c
(correct), 975:975(0) ack 3296 win 108 <nop,nop,timestamp 472511722 2277355425>
18:36:03.130840 IP6 (hlim 64, next-header: TCP (6), length: 32)
2001:5b0:ffff:fff4:217:a4ff:fe77:2a.57054 > jupcutoa1av6.https: ., cksum 0x9219
(correct), 976:976(0) ack 3297 win 108 <nop,nop,timestamp 472511723 2277355426>
7 packets captured
7 packets received by filter
0 packets dropped by kernel
Regards,
Preeti
From: Chinnaswamy, Elangoraja [mailto:[email protected]]
Sent: Thursday, June 16, 2011 3:20 PM
To: Preeti Sharma
Cc: [email protected]
Subject: RE: [Openhpi-devel] Traffic bet openhpi daemon and OA??
Hi Preeti, yes; minor correction below.
The daemon initialization will take some time depending on the resources found
in the enclosure, anytime between few seconds to few minutes. The OpenHPI
framework ABI calls (discovery)are executed every 3 minutes till the openhpid
is killed/shutdown; not only during initialization.
You can also execute the openhpid using -v option to see what is going on, if
that helps.
Thanks,
Elango
From: Preeti Sharma [mailto:[email protected]]
Sent: Thursday, June 16, 2011 11:56 AM
To: Chinnaswamy, Elangoraja
Cc: [email protected]
Subject: RE: [Openhpi-devel] Traffic bet openhpi daemon and OA??
Hi Elangoraja,
Just confirming, what I understood (is this correct?):
During Daemon initialization OpenHPI framework calls discover ABI every 3
minutes. Once initialization is done, OAs sends event for any changes and OAs
specific thread in Daemon handles it. How much time Daemon takes to initialize?
I came across method oh_evtget_thread_loop timer:
#define OH_EVTGET_THREAD_SLEEP_TIME 3 * G_USEC_PER_SEC
Looks like this method is checking for OA events after every three second and
passing this to plugin handler
Regards,
Preeti
From: Chinnaswamy, Elangoraja [mailto:[email protected]]
Sent: Thursday, June 16, 2011 1:23 PM
To: Preeti Sharma
Cc: [email protected]
Subject: RE: [Openhpi-devel] Traffic bet openhpi daemon and OA??
Hi Preeti,
As said, the OpenHPI framework calls the discover ABI every 3 minutes. The
oa_soap plug-in returns a success, instead of doing a re_discover on the OA's.
This holds good as long as the initial discovery (after the plug-in is
initialized) is completed successfully once. The subsequent changes in the
resources are handled by events.
This should clarify, let me know.
Thanks,
Elango
From: Preeti Sharma [mailto:[email protected]]
Sent: Thursday, June 16, 2011 11:16 AM
To: Chinnaswamy, Elangoraja
Cc: [email protected]
Subject: [Openhpi-devel] Traffic bet openhpi daemon and OA??
Hi Elangoraja,
Thanks, for the response. Just I am not clear what below line means (if you can
please clarify it further):
"the oa_soap plugin ignores and returns success if the discover is complete
after the initial discovery."
Regards,
Preeti
Date: Tue, 14 Jun 2011 17:14:05 +0000
From: "Chinnaswamy, Elangoraja" <[email protected]>
Subject: Re: [Openhpi-devel] Traffic bet openhpi daemon and OA??
To: "[email protected]"
<[email protected]>
Message-ID:
<1be8d981ba123b47a1d153beb20d1fbbb46ca07...@gvw1087exb.americas.hpqcorp.net>
Content-Type: text/plain; charset="us-ascii"
Hi Preeti,
Without any openhpi client running. At first the 'discovery' takes place on the
OA (active and standby). The OpenHPI framework executes the discover ABI every
3 minutes, the oa_soap plugin ignores and returns success if the discover is
complete after the initial discovery. After this any change to the resources
are handled by the event thread (one thread for each OA). Now the traffic
between the oa_soap plugin and the OA is only when an event occurs in the OA
(change in resources).
Hope this clarifies?
Thanks,
Elango
-----Original Message-----
From: Preeti Sharma [mailto:[email protected]]
Sent: Monday, June 13, 2011 2:29 PM
To: [email protected]
Subject: [Openhpi-devel] Traffic bet openhpi daemon and OA??
Hi,
I want to know detail about continuous traffic between openhpi daemon and OA
(without any openhpi clients running). What messages are exchanged? Who is
sender and who responds...? Or basically when a Deamon is started what
interaction happens between daemon and OA initially, and at regular intervals.
Regards,
Preeti
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