[ClusterLabs] IPaddr2, interval between unsolicited ARP packets

[Takehiro Matsushima]

Hello Hamaguchi-san,

Do you get same result by executing the command manually with
different parameters like this?
#/usr/libexec/heartbeat/send_arp -i 1500 -r 8 -p
/var/run/resource-agents/send_arp-192.168.12.215 eth0 192.168.12.215
auto not_used not_used

Please also make sure the PID file has been created properly.

Thank you,

Takehiro MATSUSHIMA

2016-10-03 14:45 GMT+09:00 Shinjiro Hamaguchi <hamaguchi at agile.ne.jp>:
> Hello everyone!!
>
>
> I'm using IPaddr2 for VIP.
>
> In the IPaddr2 document, it say interval between unsolicited ARP packets is
> default 200msec and can change it using option "-i", but when i check with
> tcpdump, it looks like sending arp every 1000msec fixed.
>
> Does someone have any idea ?
>
> Thank you in advance.
>
>
> [environment]
> kvm, centOS 6.8
> pacemaker-1.1.14-8.el6_8.1.x86_64
> cman-3.0.12.1-78.el6.x86_64
> resource-agents-3.9.5-34.el6_8.2.x86_64
>
>
> [command used to send unsolicited arp]
> NOTE: i got this command from /var/log/cluster/corosync.log
> #/usr/libexec/heartbeat/send_arp -i 200 -r 5 -p
> /var/run/resource-agents/send_arp-192.168.12.215 eth0 192.168.12.215 auto
> not_used not_used
>
> [result of tcudump]
>
> #tcpdump arp
>
> tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
>
> listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
>
> 05:28:17.267296 ARP, Request who-has 192.168.12.215 (Broadcast) tell
> 192.168.12.215, length 28
>
> 05:28:18.267519 ARP, Request who-has 192.168.12.215 (Broadcast) tell
> 192.168.12.215, length 28
>
> 05:28:19.267638 ARP, Request who-has 192.168.12.215 (Broadcast) tell
> 192.168.12.215, length 28
>
> 05:28:20.267715 ARP, Request who-has 192.168.12.215 (Broadcast) tell
> 192.168.12.215, length 28
>
> 05:28:21.267801 ARP, Request who-has 192.168.12.215 (Broadcast) tell
> 192.168.12.215, length 28
>
>
>
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