On 11/06/2013 10:45 PM, tsoi andrew wrote:
Dear Neil,
Attached file is our tcpdump.
Now our secondary IP doesn't work.
Please advise. Thanks.
IP info:
lksctp primary IP is 172.28.129.49
lksctp secondary IP is 172.28.129.176
Client IP is 10.82.29.240/10.82.29.241
Since it appears that you are using multiple interfaces
in the same subnet, can you please make sure that:
1) you have arp_ignore set correctly.
2) you have route rules that specify that different source
addresses should be used for different destinations.
Without this, linux will just pick the first/best address
and interface to use and you will not have real multi-homing.
You alternative of course is to set up secondary ip in a different
subnet. This way you would have more appropriate multi-homing
configuration.
-vlad
Regards,
Andrew
On Thu, Nov 7, 2013 at 10:43 AM, tsoi andrew <tsoiandrew@xxxxxxxxx> wrote:
Dear Neil,
For more information, our secondary IP doesn't response COOKIE_ECHO
also. Only our primary IP can response COOKIE_ECHO with COOKIE_ACK.
Regards,
Andrew
On Thu, Nov 7, 2013 at 10:36 AM, tsoi andrew <tsoiandrew@xxxxxxxxx> wrote:
Dear Neil,
Please find my network diagram first.
Now at server side, can't see our lksctp client 4 connection but only
2 2 connection. The reason is that heartbeat ACK not found.
Regards,
Andrew
On Mon, Nov 4, 2013 at 8:09 PM, Neil Horman <nhorman@xxxxxxxxxxxxx> wrote:
On Mon, Nov 04, 2013 at 09:59:44AM +0800, tsoi andrew wrote:
Dear Sir,
I got a problem when set multi-homing to active/active.
That mean, It is expected that our lksctp server have 2 IP to connect
2 IP of destination client with total 4 connections.
The flow is that client send "INIT" message with 2 (primary and
secondary) IP to our server and lksctp server return INIT_ACK. But
when second client send 'heartbeat' to us, lksctp server cannot return
ACK.
Moreover, we already proved our connectivity correct because when our
lksctp server send heartbeat to both destination client and they can
return ACK.
Would you mind sharing if lksctp lib already configure those
multi-homing purpose.
Can you provide a network diagram and a tcpdump of your connection?
Neil
Best Regards,
Andrew Tsoi
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