NS3000/iX NMMGR Screens Reference Manual - Edition 8 (36922-90038)

Chapter 13 285
Loopback Network Interface Configuration Screens
Loopback Network Interface Configuration
Fields Network
segment size
(bytes) (HP modifiable.) This is the size of the physical buffer
for the loopback network interface. No fragmenting or
fragment assembly is performed on the loopback NI.
There is no limitation that only single physical buffers
(not chained buffers, for example) can be passed across
the I/O interface to the board, because outbound data is
turned around at the NI layer. Therefore, if user data
exceeds the physical buffer size, it is put into logical
buffers (chained physical buffers) that are the size of
the user data.
Default value: 1024
Range: 1024–4032
Number of
outbound buffers
This field specifies the number of outbound buffers to
be allocated for loopback. The default is based on the
assumption that the network manager desires to allow
no more than the default number of TCP connections
(128) to use the loopback NI. Therefore, the default is
128. If you change the number of TCP connections from
the default value, you should reconsider the number of
inbound buffers for all NIs.
Default value: 128
Range: 128–1024