AB291A Fabric Clustering System Support Guide (12-port Switch), April 2004

HP 12-Port 4X Fabric Copper Switch Commands
IP Commands
Appendix B
230
HP-IB# configure
HP-IB(config)# ip domain-name shasta
Defaults:
The default domain name is an empty string.
Related Commands:
“show host” on page 147
“ip name-server-one” on page 231
“ip name-server-two” on page 232
ip ip-over-ib-mtu
Synopsis:
The ip ip-over-ib-mtu command sets the Maximum Transmission Unit (MTU) of the packet or frame payload
of IP-over-IB traffic along a path from the source to its destination.
Syntax:
ip ip-over-ib-mtu mtu
no ip ip-over-ib-mtu
The syntax is described in the table below:
Command Modes:
Global configuration (config) mode.
Privilege Level:
Ethernet and HP Fabric read-write user.
Usage Guidelines:
The maximum transmission unit is described in terms of payload size. TCP uses the MTU to determine the
maximum payload allowed for every transmission. Too great a value can overwhelm routers and result in
data retransmission. Too small a value results in degraded performance because there are more headers and
acknowledgements required to transmit the same amount of data.
Table B-41 Command Syntax Description
Command Description
ip Enter the main ip command.
ip-over-ib-m
tu
Sets the maximum size of the packet or frame payload of IP-over-IB
traffic along a path from the source to its destination.
mtu Enter the Maximum Transmission Unit (MTU) to apply. The MTU
value may be 256, 512, 1024, 2048, or 4096. MTU is specified in
octets (8-bit bytes). Refer to Usage Guidelines for more information.
no Sets the MTU to the default.