Hi List,
in some kind of spring-cleaning of our configuration collection, i
encountered some lines that differ from Ciscos defaults in many of our
switches. The Cisco default for the lines in question is like this:
no ip tcp selective-ack
no ip tcp path-mtu-discovery
This makes me wonder because i believe that pmtu discovery and selective ack
are good things. Furthermore, in our heritage config defaults selective-ack
and path-mtu-discovery are explicitly enabled.
The question i like to ask is therefore: Does anyone know why Cisco chose to
disable this by default and am i right that it's safe these days to enable it?
Best,
Sebastian.
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