Citrix Systems CITRIX NETSCALER 9.3 Benutzerhandbuch

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Parameters for setting the TCP buffer size in a TCP
profile
name
Name of the TCP profile. Maximum length: 127 characters.
bufferSize
TCP buffer size in bytes. Maximum value: 4194304. Minimum value: 8190. Default:
8190.
To set the TCP buffer size in a TCP profile by using
the NetScaler configuration utility
1. In the navigation pane, expand System, and then click Profiles.
2. In the details pane, click the TCP Profiles tab, and then do one of the following:
• To create a custom, entity-level TCP profile, click Add and, in the Create TCP
Profile dialog box, type a name for the new profile.
• To set the TCP buffer size for an existing TCP profile, click the name of the TCP
profile, and then click Open. If you want to set the TCP buffer size in the global
TCP profile, click nstcp_default_profile.
3. In the Create TCP Profile or Configure TCP Profile dialog box, in the TCP Buffer
Size (Bytes) box, type the number of bytes to specify as the minimum TCP buffer
size.
4. Click Create or OK.
Optimizing the TCP Maximum Segment Size for
a Virtual Server Configuration
You can specify the Maximum Segment Size (MSS) that the Citrix
®
 NetScaler
®
 appliance
advertises to a client when the client initiates a connection to a virtual server on the
appliance. You can configure the MSS for the virtual servers configured on the
appliance in two ways:
w
You can set the MSS for each virtual server to a value of your choice in a TCP profile.
w
You can set the learnVsvrMSS global TCP parameter to ENABLED to enable MSS
learning for all the virtual servers configured on the appliance.
If you know the optimal MSS value for a given virtual server, you can specify the MSS in
a TCP profile and bind the profile to the virtual server. When a client initiates a
connection with the virtual server, the NetScaler appliance advertises the specified MSS
value to the client. However, if the appliance is also configured to learn the optimum
MSS value from bound services (as described in the following section), the learned MSS
value takes precedence, and the value specified in the TCP profile is used only until
Chapter 5
Advanced Configurations
144