Installation guide

Press Next to continue.
b. Perf o rman ce set tin g
This screen configures advanced TCP settings for the network driver. TCP timestamps
and TCP window scaling can be enabled or disabled. The default is, 1, for window
scaling to be enabled.
TCP window scaling is covered by IETF RFC 1323. The RFC defines a method of
increasing the receive window size to a size greater than the default maximum of
65,535 bytes up to a new maximum of 1 gigabyte (1,073,741,824 bytes). TCP window
scaling allows networks to transfer at closer to theoretical network bandwidth limits.
Larger receive windows may not be supported by some networking hardware or
operating systems.
TCP timestamps are also defined by IETF RFC 1323. TCP timestamps are used to
better calculate Return Travel Time estimates by embedding timing information is
embedded in packets. TCP timestamps help the system to adapt to changing traffic
levels and avoid congestion issues on busy networks.
Valu e Act io n
0 Disable TCP timestamps and window
scaling.
1 Enable TCP window scaling.
2 Enable TCP timestamps.
3 Enable TCP timestamps and window
scaling.
Press Next to continue.
c. Co n f irm t h e excep t io n
⁠Chapt er 1 3. KVM Para- virt ualized Drivers
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