Re: [lwip-users] lwip reply delayed after long communication idle time

[Jochen Strohbeck]

Another observation/idea/question:

At the time ping times out or is delayed, I noticed a bulk of dest:FF...
(broadcast?) messages:

Antwort von 192.168.0.100: Bytes=32 Zeit=1ms TTL=255
Antwort von 192.168.0.100: Bytes=32 Zeit=1ms TTL=255
Antwort von 192.168.0.100: Bytes=32 Zeit=*60ms* TTL=255
*Zeitüberschreitung der Anforderung.*
Antwort von 192.168.0.100: Bytes=32 Zeit=*2513ms* TTL=255
Antwort von 192.168.0.100: Bytes=32 Zeit<1ms TTL=255
Antwort von 192.168.0.100: Bytes=32 Zeit<1ms TTL=255
Antwort von 192.168.0.100: Bytes=32 Zeit<1ms TTL=255
Antwort von 192.168.0.100: Bytes=32 Zeit<1ms TTL=255
Antwort von 192.168.0.100: Bytes=32 Zeit<1ms TTL=255


2012-01-01 00:03:37 [W]ethernet_input: dest:de:bd:01:00:00:16,
src:98:e7:43:7a:2c:51, type:800
2012-01-01 *00:03:37* [W]icmp_input: ping
2012-01-01 00:03:38 [W]ethernet_input: dest:ff:ff:ff:ff:ff:ff,
src:98:e7:43:7a:2c:51, type:800
2012-01-01 00:03:38 [W]ethernet_input: dest:ff:ff:ff:ff:ff:ff,
src:98:e7:43:7a:2c:51, type:800
2012-01-01 00:03:38 [W]ethernet_input: dest:ff:ff:ff:ff:ff:ff,
src:98:e7:43:7a:2c:51, type:800

2012-01-01 00:03:38 [W]ethernet_input: dest:de:bd:01:00:00:16,
src:98:e7:43:7a:2c:51, type:800
2012-01-01 *00:03:38* [W]icmp_input: ping
2012-01-01 00:03:38 [W]ethernet_input: dest:ff:ff:ff:ff:ff:ff,
src:98:e7:43:7a:2c:51, type:800
2012-01-01 00:03:38 [W]ethernet_input: dest:ff:ff:ff:ff:ff:ff,
src:98:e7:43:7a:2c:51, type:800
2012-01-01 00:03:39 [W]ethernet_input: dest:ff:ff:ff:ff:ff:ff,
src:98:e7:43:7a:2c:51, type:800
2012-01-01 00:03:39 [W]ethernet_input: dest:ff:ff:ff:ff:ff:ff,
src:98:e7:43:7a:2c:51, type:800
2012-01-01 00:03:39 [W]ethernet_input: dest:ff:ff:ff:ff:ff:ff,
src:98:e7:43:7a:2c:51, type:800
2012-01-01 00:03:42 [W]ethernet_input: dest:ff:ff:ff:ff:ff:ff,
src:98:e7:43:7a:2c:51, type:800

2012-01-01 00:03:43 [W]ethernet_input: dest:de:bd:01:00:00:16,
src:98:e7:43:7a:2c:51, type:800
2012-01-01 *00:03:43* [W]icmp_input: ping
2012-01-01 00:03:43 [W]ethernet_input: dest:ff:ff:ff:ff:ff:ff,
src:98:e7:43:7a:2c:51, type:800
2012-01-01 00:03:44 [W]ethernet_input: dest:ff:ff:ff:ff:ff:ff,
src:98:e7:43:7a:2c:51, type:800

2012-01-01 00:03:46 [W]ethernet_input: dest:de:bd:01:00:00:16,
src:98:e7:43:7a:2c:51, type:800
2012-01-01 *00:03:46* [W]icmp_input: ping
2012-01-01 00:03:46 [W]ethernet_input: dest:ff:ff:ff:ff:ff:ff,
src:98:e7:43:7a:2c:51, type:800

Is it possible that many of these "broadcast" messages block / delay the
ping request processing?

ping_delay.pcap <http://lwip.100.n7.nabble.com/file/t1988/ping_delay.pcap>  
pingdelay.txt <http://lwip.100.n7.nabble.com/file/t1988/pingdelay.txt>  



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