4.6

Table Of Contents
Procedure
1 On the Windows Server computer, start the Windows Registry Editor.
a Select Start > Command Prompt.
b At the command prompt, type regedit.
2 In the registry, locate the correct subkey and click Parameters.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
3 Click Edit > New and add the registry entry.
Value Name: MaxUserPort
Value Type: DWORD
Value data: 1024 +
calculated number of ephemeral ports
Valid Range: 5000-65534 (decimal)
4 Exit the Windows Registry Editor.
5 Restart the Windows Server computer.
Increasing the Size of the TCB Hash Table
The transmission control block (TCB) holds information about TCP connections that are made between View
Connection Server clients and their desktop sources. To support a large View desktop deployment on Windows
Server 2003 computers, you can increase the size of the TCB hash table.
On Windows Server 2008 computers, you do not need to increase the maximum size of the TCB hash table.
Windows Server 2008 fully tunes this value by default.
The TCB is a memory-resident data structure that contains socket numbers, the location of incoming and
outgoing data buffers, bytes received or unacknowledged, and other information.
To retrieve this information quickly, Windows Server stores TCB data structures in a hash table.
By default, Windows Server 2003 configures the number of hash table rows based on the number of CPUs in
the Windows Server computer.
Table 5-11. Maximum TCB Hash Table Size on Windows Server 2003
Number of CPUs Maximum Number of TCB Hash Table Rows
1 128
2 512
4 2,048
8 8,192
You use two different formulas to calculate the TCB hash table size on View Connection Server instances and
security servers.
Chapter 5 Installing View Connection Server
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