[tipc-discussion] Configuring TIPC link window size

[Shridhar S. <ssa...@mo...>]

Hi,

On our systems TIPC gets configured through following command sequence:

modprobe tipc
tipc_config  -netid=<nid>  -a=<address>
tipc_config  -be=eth:bond0  -lw=eth:bond0/1000

Please note that we want to set the link window size to 1000, so lw
option is specified as above.

This works most of the time, but intermittently I see that the window
size is set to default 50 on some of the links. For example, in the
output pasted below from one of machines, you can see that all links
have window size 1000 except one of them.

Could you please suggest if there is any issue with the way I am
configuring the window size? What is the best way to make sure that the
window size is configured properly for all the blades?


Link <broadcast-link>
  Window:20 packets
  RX packets:1875 fragments:0/0 bundles:0/0
  TX packets:238 fragments:0/0 bundles:0/0
  RX naks:0 defs:0 dups:0
  TX naks:0 acks:118 dups:0
  Congestion bearer:0 link:0  Send queue max:19 avg:7

Link <1.1.161:bond0-1.1.33:bond0>
  ACTIVE  MTU:1500  Priority:10  Tolerance:1500 ms  Window:1000 packets
  RX packets:29 fragments:0/0 bundles:0/0
  TX packets:29 fragments:0/0 bundles:0/0
  TX profile sample:2 packets  average:64 octets
  0-64:100% -256:0% -1024:0% -4096:0% -16354:0% -32768:0% -66000:0%
  RX states:891 probes:438 naks:0 defs:0 dups:0
  TX states:887 probes:438 naks:0 acks:0 dups:0
  Congestion bearer:0 link:0  Send queue max:3 avg:0

Link <1.1.161:bond0-1.1.81:bond0>
  ACTIVE  MTU:1500  Priority:10  Tolerance:1500 ms  Window:50 packets
  RX packets:13555 fragments:0/0 bundles:0/0
  TX packets:6885 fragments:0/0 bundles:0/0
  TX profile sample:220 packets  average:134 octets
  0-64:2% -256:97% -1024:1% -4096:0% -16354:0% -32768:0% -66000:0%
  RX states:856 probes:392 naks:0 defs:0 dups:0
  TX states:1111 probes:430 naks:0 acks:171 dups:0
  Congestion bearer:0 link:0  Send queue max:15 avg:0

Link <1.1.161:bond0-1.1.129:bond0>
  ACTIVE  MTU:1500  Priority:10  Tolerance:1500 ms  Window:1000 packets
  RX packets:29 fragments:0/0 bundles:0/0
  TX packets:29 fragments:0/0 bundles:0/0
  TX profile sample:2 packets  average:64 octets
  0-64:100% -256:0% -1024:0% -4096:0% -16354:0% -32768:0% -66000:0%
  RX states:887 probes:438 naks:0 defs:0 dups:0
  TX states:883 probes:434 naks:0 acks:0 dups:0
  Congestion bearer:0 link:0  Send queue max:3 avg:0

Link <1.1.161:bond0-1.1.193:bond0>
  ACTIVE  MTU:1500  Priority:10  Tolerance:1500 ms  Window:1000 packets
  RX packets:29 fragments:0/0 bundles:0/0
  TX packets:29 fragments:0/0 bundles:0/0
  TX profile sample:2 packets  average:64 octets
  0-64:100% -256:0% -1024:0% -4096:0% -16354:0% -32768:0% -66000:0%
  RX states:884 probes:435 naks:0 defs:0 dups:0
  TX states:880 probes:434 naks:0 acks:0 dups:0
  Congestion bearer:0 link:0  Send queue max:3 avg:0

Link <1.1.161:bond0-1.1.225:bond0>
  ACTIVE  MTU:1500  Priority:10  Tolerance:1500 ms  Window:1000 packets
  RX packets:5 fragments:0/0 bundles:0/0
  TX packets:5 fragments:0/0 bundles:0/0
  TX profile sample:2 packets  average:64 octets
  0-64:100% -256:0% -1024:0% -4096:0% -16354:0% -32768:0% -66000:0%
  RX states:888 probes:438 naks:0 defs:0 dups:0
  TX states:884 probes:435 naks:0 acks:0 dups:0
  Congestion bearer:0 link:0  Send queue max:3 avg:0


Regards,
Shridhar