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From: | Sandra Gilge |
Subject: | Re: [lwip-users] IP connection going down spontaneous |
Date: | Fri, 20 Nov 2015 13:23:06 +0100 |
Hallo, Regarding my Problem with the ARP flooding: It was indeed a problem of the driver for the Ethernet MAC (which was from ADI). It simply disabled and never reenable the MAC interrupts, when running out of receive buffers. It is surprising that the problem did occure so seldom. The ARP flooding can be provoked by connecting a loop in the switch on purpose. I will add this test for my stability tests for future problems. Best regards, Sandra Hallo Sergio, I know that there is no such thing like IP connection, sorry for the incorrect phrasing. I'm using the sockets API. The OS is VDK (Analog Devices). I can't post the traffic since it is the traffic of the customer. Everythig works fine almost all of the time. It does only happen at one customer, never in my lab. The traffic of the customer showed a kind of ARP flooding (but not from our devices). That was the only remarkable thing I could see in the traffic. After that I could not ping our devices, Webserver(TCP) was not reachable, SIP Message (UDP) did not go out any more. I've got several tasks using different UDP and TCP sockets for SIP, MDNS, NTP, HTTP Server etc. I've no way to look at lwip_stats in a installed system, since I have no access to it except ethernet. Message: 1 Date: Fri, 23 Oct 2015 09:00:03 -0300 From: "Sergio R. Caprile" <address@hidden> To: address@hidden Subject: Re: [lwip-users] IP connection going down spontaneous Message-ID: <address@hidden> Content-Type: text/plain; charset=utf-8 Sandra, lwip is stable, you should check your product. As you probably know, there is no such thing as an IP connection, so if you are specific on what you are doing and what is the problem you are having, there is a chance to find a solution or at least the culprit. If you want to take traffic captures and post links to them, I'll be happy to take a look. If you want to log lwip messages and describe what your usage is (NO_SYS, OS, API), sure someone will be happy to look at it and suggest. Mit freundlichen Grüßen Sandra Gilge Adatis GmbH & Co. KG Forchheimer Str. 6 90425 Nürnberg Tel: +49 (0) 911.2550 975 13 Fax: +49 (0) 911.2550 975 9 E-Mail: address@hidden HRA 15157 Amtsgericht Nürnberg PhG Adatis Verwaltungs-GmbH, HRB 25058 Amtsgericht Nürnberg, Geschäftsführer: Dr. Michael Gilge USt-ID DE263918450 |
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