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Altera_Forum
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11 years ago

Altera TSE Ping problem

Hye All, I have written one code which takes data from the host PC & sends it to network via TSE, now TSE got initialized properly and I can see all the data on both the side in wireshark also. But when I ping from both the side I am getting 2 -5 ping responses against 20-30 requests. Both the sides I am getting "Request Timed Out" & sometimes "Host Unreachable", Can anybody help me with this issue??

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  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    11 years ago

    --- Quote Start ---

    Hye All, I have written one code which takes data from the host PC & sends it to network via TSE, now TSE got initialized properly and I can see all the data on both the side in wireshark also. But when I ping from both the side I am getting 2 -5 ping responses against 20-30 requests. Both the sides I am getting "Request Timed Out" & sometimes "Host Unreachable", Can anybody help me with this issue??

    --- Quote End ---

    There could be many causes, hardware or software. Perhaps the most likely cause in this context however would be packets being discarded due to invalid Ethernet CRC checksum, possibly due to marginal timing between the TSE MAC and its external PHY. On the receive side there is a counter for these errors in the TSE MAC. On the transmit side it can be more difficult to see this type of problem due to many of the PC NIC drivers silently discarding the damaged packets before they get to wire shark.