Hi Folks,
Just my 2 cents on this..
I do find there is an old Junos security advisory bulletin as below related to “Incorrect timestamp values might stall TCP sessions”,
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10357
TCP Extensions for High Performance
https://www.ietf.org/rfc/rfc1323.txt?number=1323
Moreover, there are multiple discussion on the same RFC in multiple forums; which could be interesting to you…
https://stackoverflow.com/questions/7880383/what-benefit-is-conferred-by-tcp-timestamp