From: Rodolfo Giometti <giometti@enneenne.com>
To: Vitalii Demianets <vitas@nppfactor.kiev.ua>
Cc: bridge@lists.linux-foundation.org
Subject: Re: [Bridge] MSTPd in RSTP mode is sometimes slow...
Date: Mon, 15 Oct 2012 17:45:28 +0200 [thread overview]
Message-ID: <20121015154528.GD30620@enneenne.com> (raw)
In-Reply-To: <20121015152449.GF28101@enneenne.com>
On Mon, Oct 15, 2012 at 05:24:49PM +0200, Rodolfo Giometti wrote:
> On Fri, Oct 12, 2012 at 11:37:00AM +0200, Rodolfo Giometti wrote:
>
> Looking better my tests here:
>
> > 1038910509.489145: PISM_to_CURRENT: br0:mrvl4:0
> > 1038910510.479677: MSTP_OUT_tx_bpdu: br0:mrvl4 sending RST BPDU
>
> I noticed that we need ~1s from PISM_to_CURRENT to send out the BPDU!
>
> How is it possible? =:-o
Let's take a look at this new test.
I modified the br_state_machines_run function as follow:
static void br_state_machines_run(bridge_t *br)
{
port_t *prt;
per_tree_port_t *ptp;
tree_t *tree;
LOG("------> 0");
if(!br->bridgeEnabled)
return;
/* 13.28 Port Receive state machine */
LOG("------> 1");
FOREACH_PORT_IN_BRIDGE(prt, br)
PRSM_run(prt);
/* 13.29 Port Protocol Migration state machine */
LOG("------> 2");
FOREACH_PORT_IN_BRIDGE(prt, br)
PPMSM_run(prt);
/* 13.30 Bridge Detection state machine */
LOG("------> 3");
FOREACH_PORT_IN_BRIDGE(prt, br)
BDSM_run(prt);
/* 13.31 Port Transmit state machine */
LOG("------> 4");
FOREACH_PORT_IN_BRIDGE(prt, br)
PTSM_run(prt);
/* 13.32 Port Information state machine */
LOG("------> 5");
FOREACH_PORT_IN_BRIDGE(prt, br)
{
FOREACH_PTP_IN_PORT(ptp, prt)
PISM_run(ptp);
}
/* 13.33 Port Role Selection state machine */
LOG("------> 6");
FOREACH_TREE_IN_BRIDGE(tree, br)
PRSSM_run(tree);
/* 13.34 Port Role Transitions state machine */
LOG("------> 7");
FOREACH_PORT_IN_BRIDGE(prt, br)
{
FOREACH_PTP_IN_PORT(ptp, prt)
PRTSM_run(ptp);
}
/* 13.35 Port State Transition state machine */
LOG("------> 8");
FOREACH_PORT_IN_BRIDGE(prt, br)
{
FOREACH_PTP_IN_PORT(ptp, prt)
PSTSM_run(ptp);
}
/* 13.36 Topology Change state machine */
LOG("------> 9");
FOREACH_PORT_IN_BRIDGE(prt, br)
{
FOREACH_PTP_IN_PORT(ptp, prt)
TCSM_run(ptp);
}
LOG("------> 10");
}
And rerun my test with the following outout:
1038910178.371891: bridge_bpdu_rcv: ifindex 6, len 60
1038910178.374841: MSTP_IN_rx_bpdu: br0:mrvl4 received RST BPDU
1038910178.376916: br_state_machines_run: ------> 0
1038910178.382722: br_state_machines_run: ------> 1
1038910178.387469: br_state_machines_run: ------> 2
1038910178.392215: br_state_machines_run: ------> 3
1038910178.396962: br_state_machines_run: ------> 4
1038910178.401717: br_state_machines_run: ------> 5
1038910178.406460: PISM_to_RECEIVE: br0:mrvl4:0
1038910178.411217: PISM_to_SUPERIOR_DESIGNATED: br0:mrvl4:0
1038910178.415696: PISM_to_CURRENT: br0:mrvl4:0
1038910178.421251: br_state_machines_run: ------> 6
1038910178.425740: br_state_machines_run: ------> 7
1038910178.430479: br_state_machines_run: ------> 8
1038910178.435221: br_state_machines_run: ------> 9
1038910178.439971: br_state_machines_run: ------> 10
1038910178.660628: br_state_machines_run: ------> 0
1038910178.663528: br_state_machines_run: ------> 1
1038910178.665404: br_state_machines_run: ------> 2
1038910178.670153: br_state_machines_run: ------> 3
1038910178.674901: br_state_machines_run: ------> 4
1038910178.679651: br_state_machines_run: ------> 5
1038910178.684405: PISM_to_UPDATE: br0:mrvl4:0
1038910178.689151: PISM_to_CURRENT: br0:mrvl4:0
1038910178.693541: br_state_machines_run: ------> 6
1038910178.698018: br_state_machines_run: ------> 7
1038910178.702782: br_state_machines_run: ------> 8
1038910178.707516: br_state_machines_run: ------> 9
1038910178.712266: br_state_machines_run: ------> 10
1038910179.406118: bridge_bpdu_rcv: ifindex 7, len 60
1038910179.409005: MSTP_IN_rx_bpdu: br0:mrvl5 received RST BPDU
1038910179.411081: br_state_machines_run: ------> 0
1038910179.416878: br_state_machines_run: ------> 1
1038910179.421636: br_state_machines_run: ------> 2
1038910179.426377: br_state_machines_run: ------> 3
1038910179.431126: br_state_machines_run: ------> 4
1038910179.435881: MSTP_OUT_tx_bpdu: br0:mrvl4 sending RST BPDU
1038910179.448880: br_state_machines_run: ------> 5
1038910179.452019: PISM_to_RECEIVE: br0:mrvl5:0
1038910179.453895: PISM_to_SUPERIOR_DESIGNATED: br0:mrvl5:0
1038910179.458373: PISM_to_CURRENT: br0:mrvl5:0
1038910179.463925: br_state_machines_run: ------> 6
1038910179.468415: br_state_machines_run: ------> 7
1038910179.473154: br_state_machines_run: ------> 8
1038910179.477896: br_state_machines_run: ------> 9
1038910179.482652: br_state_machines_run: ------> 10
1038910179.487435: bridge_bpdu_rcv: ifindex 6, len 60
1038910179.492237: MSTP_IN_rx_bpdu: br0:mrvl4 received RST BPDU
1038910179.497183: br_state_machines_run: ------> 0
1038910179.502991: br_state_machines_run: ------> 1
1038910179.507737: br_state_machines_run: ------> 2
1038910179.512483: br_state_machines_run: ------> 3
1038910179.517231: br_state_machines_run: ------> 4
1038910179.521986: br_state_machines_run: ------> 5
1038910179.526729: PISM_to_UPDATE: br0:mrvl4:0
1038910179.531484: PISM_to_CURRENT: br0:mrvl4:0
1038910179.535868: PISM_to_RECEIVE: br0:mrvl4:0
1038910179.540788: PISM_to_NOT_DESIGNATED: br0:mrvl4:0
1038910179.544830: PISM_to_CURRENT: br0:mrvl4:0
1038910179.549936: br_state_machines_run: ------> 6
1038910179.554416: br_state_machines_run: ------> 7
1038910179.559174: br_state_machines_run: ------> 8
1038910179.563919: MSTP_OUT_set_state: br0:mrvl4:0 entering learning state
Look here:
1038910178.712266: br_state_machines_run: ------> 10
1038910179.406118: bridge_bpdu_rcv: ifindex 7, len 60
1038910179.409005: MSTP_IN_rx_bpdu: br0:mrvl5 received RST BPDU
1038910179.411081: br_state_machines_run: ------> 0
The mstpd daemon needs ~0.7s to rerun the function! =:-/
Ciao,
Rodolfo
--
GNU/Linux Solutions e-mail: giometti@enneenne.com
Linux Device Driver giometti@linux.it
Embedded Systems phone: +39 349 2432127
UNIX programming skype: rodolfo.giometti
Freelance ICT Italia - Consulente ICT Italia - www.consulenti-ict.it
next prev parent reply other threads:[~2012-10-15 15:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-09 14:23 [Bridge] MSTPd in RSTP mode is sometimes slow Rodolfo Giometti
2012-10-09 15:42 ` Vitalii Demianets
2012-10-09 15:58 ` Rodolfo Giometti
2012-10-12 9:37 ` Rodolfo Giometti
2012-10-15 15:24 ` Rodolfo Giometti
2012-10-15 15:45 ` Rodolfo Giometti [this message]
2012-10-15 16:39 ` Rodolfo Giometti
2012-10-09 15:47 ` Rodolfo Giometti
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20121015154528.GD30620@enneenne.com \
--to=giometti@enneenne.com \
--cc=bridge@lists.linux-foundation.org \
--cc=vitas@nppfactor.kiev.ua \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.