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NETROM packets arriving out of sequence

Kevin, M0AHN All Messages By This Member #41924 Hello John ? I run a BPQ node in the South West of England and have observed some occasions where packets are arriving out of order over NETROM. The symptom is seen when connecting over 2 hops (so 3 BPQ nodes involved) to both a BBS and custom Application hosted on a TCP port. ? Recovery when using the BBS is relatively straightforward, just request the message again. It is fatal for the custom application though, which is sending structured data.? ? I'd be happy to try and reproduce the issue but wanted to ask how best to capture the logs? I can run a monitor in QtTermTCP, or via the AGW port, or using KISS Proxy. Also, do you need the logs from all 3 BPQ nodes involved or just the final node where the problem was observed? ? Thanks in advance ? 73 Kevin
John G8BPQ All Messages By This Member #41925 开云体育 Hi Kevin. QtTermTCP monitor is probably the simplest and if you have a recent version you can log monitor output to disk. Assuming it is a single netrom connect then any packet resequencing will be done at the final node so a trace of that should be enough. The syslog output may also be useful as that may have details of packets arriving out of sequence. 73, John On 15/08/2024 22:19, Kevin, M0AHN wrote: toggle quoted message Show quoted text Hello John ? I run a BPQ node in the South West of England and have observed some occasions where packets are arriving out of order over NETROM. The symptom is seen when connecting over 2 hops (so 3 BPQ nodes involved) to both a BBS and custom Application hosted on a TCP port. ? Recovery when using the BBS is relatively straightforward, just request the message again. It is fatal for the custom application though, which is sending structured data.? ? I'd be happy to try and reproduce the issue but wanted to ask how best to capture the logs? I can run a monitor in QtTermTCP, or via the AGW port, or using KISS Proxy. Also, do you need the logs from all 3 BPQ nodes involved or just the final node where the problem was observed? ? Thanks in advance ? 73 Kevin

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