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PortServer TS number of sessions problem

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We have detected when we have more than 8 SSH sessions the PortServer TS-1 start collapsing. We cannot access to the device and serialoverip behavior degrades affecting to the final equipment.
asked Apr 18, 2016 in ConnectPort TS by rubiogila New to the Community (0 points)

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1 Answer

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From the firmware release notes:

Some modern TLS/SSL-based clients and/or servers require a more
secure mechanism to exchange security information than was supported in
this product. The strength of the "Diffie-Hellman Group" has been
doubled to improve compatibility with modern systems, at the potential
cost of performance. See known limitations.



KNOWN LIMITATIONS

- This firmware version updates and restricts encryption to the device
according to recent industry guidance and best practices. Given the
resource constraints in this product architecture, and the increased
computational power required to implement newer encryption methods,
these latest changes may impact product performance in some
applications, significantly increasing the time required for encrypted
communications to complete. If application performance with this
revision is not suitable, the best options are to revert to the
previous (revision W) firmware or use the product without using
SSL/TLS encryption.
answered Apr 19, 2016 by userid0 Veteran of the Digi Community (2,158 points)
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