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ANA-7711C/F Installation Guide
Setting the Buffer Size
The buffer size identifies the amount of system memory allocated
for temporary packet storage. For example, buffer_megs=512
indicates that 512 MB has been allocated as buffer memory.
Increasing this amount improves performance and provides an
extra safety margin against packet loss and dropped connections
when dealing with large numbers of connections.
To adjust the size of the buffer, change the value of the buffer_megs
parameter. The default is 16. The minimum is 1 and the maximum is
512 MB.
Enabling and Disabling Autonegotiation
To adjust the port speed, set the value of the autoneg parameter to
enable or disable. For example, autoneg=enable. The default
value is auto which enables autonegotiation. Enable is the same as
auto.
enable—This enables the autonegotiation of the port speed
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between the NAC and the switch. Both the NAC and the
connected switch must be set to enable.
disable—This forces the NAC to operate at 1000 Mbps. Use disable
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only when autonegotiation fails on certain switch models.
Note: You can disable autonegotiation using the
ANA-7711F only. This is not supported on the ANA-7711C.
Enabling or Disabling Flow Control
To manage the data flow between the NAC and the switch, set the
flow parameter to enable, disable, tx (transmit), or rx (receive). For
example, flow=enable. The default value is auto which enables
flow control.
enable—This enables the NAC to pause data transmission
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when data overflow occurs during transmit and receive.
disable—This suspends the ability to control data overflow.
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tx—This enables flow control during transmit only.
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rx—This enables flow control during receive only.
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