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net.core.wmem_max is a maximum value, as its name says.

net.ipv4.tcp_wmem is a triple value, with minimum, default and maximum values. The maximum given here cannot exceed the previous value.

TCP is a protocol that should be the same regardless whether it is transported by IPv4 or by IPv6.

See e.g.

https://docs.redhat.com/en/documentation/red_hat_data_grid/7...




So `net.ipv4.tcp_wmem` applies to IPv4 and IPv6? If so it's absolutely not obvious.


The three problems of computing:

0. Cache invalidation

1. Naming things

2. Off by one errors


Two problems




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