IBM System x3250 M4, Installation & User Manual

Page: 80 / 108

Note: After you reset the IMM2, this confirmation message is displayed
immediately:
IMM2 reset command has been sent successfully!! Press ENTER to continue.
The IMM2 reset process is not yet complete. You must wait
approximately 3 minutes for the IMM2 to reset before the IMM2 is
functional again. If you attempt to access sever firmware information
while the server is resetting,
Unknown
is displayed in the fields, and the
description is
Error retrieving information from IMM2
.
LAN over USB
A LAN over USB interface enables in-band communications to the IMM2; the IMM2
hardware on the system board presents an internal Ethernet NIC from the IMM2 to
the operating system.
Typically, the IMM2 IP address for the LAN over USB interface is set to a static
address of 169.254.95.118 with a subnet mask of 255.255.0.0. In the event of an IP
address collision on the network, the IMM2 might obtain a different IP address in
the 169.254.xxx.xxx range.
Because the IMM2 might obtain a random IP address for the LAN over USB
interface, the ASU and firmware flash utilities, DSA, and the IBM Systems Director
Agent use the Service Location Protocol (SLP) to discover the IMM2 IP address.
These tools perform an SLP multicast discovery on the LAN over USB interface.
When they receive a response from the IMM2, they obtain the attributes that
contain the IP address that the IMM2 is using for the LAN over USB interface.
62
IBM System x3250 M4 Type 2583: Installation and User’s Guide