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@xxxxxxxxxxxx
Linux Device Driver giometti@xxxxxxxx
Embedded Systems phone: +39 349 2432127
UNIX programming skype: rodolfo.giometti
Freelance ICT Italia - Consulente ICT Italia - www.consulenti-ict.it
