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Re: [lwip-users] Transmission stall after ARP broadcast
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From: |
Stephan Hilchenbach |
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Subject: |
Re: [lwip-users] Transmission stall after ARP broadcast |
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Date: |
Tue, 20 Feb 2018 07:33:10 +0000 |
Hello,
this problem was not caused by the LwIP stack, but by the Ethernet driver. It
was solved with the help of the Ti support:
https://e2e.ti.com/support/arm/sitara_arm/f/791/t/663155
The address lookup engine (ALE) processes all received packets to determine
which port(s) if any that the packet should the forwarded to. Configured as a
switch, the port state of all ports was set to forwarding, even if a port was
not connected. Setting the unconnected ports to blocking by default and setting
them to forward after Phy connect, solved the problem.
Best Regards,
Stephan