- Network segment size (bytes)
(HP modifiable.) This field specifies the largest packet
(including all data, protocol headers, and link level headers) that will
be sent by the LAN device. The only reason for entering a value smaller
than 1514 is to make better use of memory for those systems where it is
known that upper layer services will always send shorter messages. Note
that whenever packets larger than the network segment size are sent, they
will be fragmented to the network segment size, thus incurring
fragmentation overhead at the source and assembly overhead at the
destination node.
Default value: 1514 bytes
Range: 300-1514
- HP UPC number
(HP modifiable.) The HP universal product code, which is used
to establish an HP-unique address used by the probe protocol.
Default value: 08-00-09
Change the default only in rare circumstances. If all nodes on the LAN
are not configured with identical HP UPC numbers, probe multicasts will
not be universally recognized by nodes on the LAN.
- Number of outbound buffers
This field specifies the number of buffers to be allocated for
outbound data. Outbound buffers are used for outbound data packets and
are held by the transport until they are acknowledged by the destination
node. Underallocation may adversely affect TCP throughput. Overallocation
may waste core memory.
Related screen:
Default value: 128
Range: 128-4096
- Load network directory mapping? (Y/N)
If you have non-HP nodes on the LAN (nodes that do not support either
ARP or probe protocols,) you must enter these nodes into the network
directory and set load network directory mapping to Y.
HP recommends the default unless non-HP nodes are on the LAN and the
network directory has been configured. Refer to
Chapter 13 "Network Directory" for information
about the network directory.
Default value: N
Range: Y or N
- Enable Ethernet? (Y/N)
This flag enables the Ethernet protocol to run either by itself or
with the IEEE802.3 protocol. You can enable one or the other or both of
these protocols simultaneously. One or the other must be enabled
(you cannot disable both). Ethernet is enabled by default. Disabling
Ethernet has the effect of disabling the ARP protocol as well.
Default value: Y
Range: Y or N
- Enable IEEE802.3? (Y/N)
This flag enables the IEEE 802.3 protocol to run either by itself or
with the Ethernet protocol. You can enable one or the other or both of
these protocols simultaneously. One or the other must be enabled (you
cannot disable both). IEEE 802.3 is enabled by default. Disabling IEEE
802.3 has the effect of disabling the probe protocol as well.
Default value: Y
Range: Y or N