Nortel 5399 Hardware Installation Manual page 72

Chapter 3 ROM Monitor Commands
Nortel Networks 5399 Access Switch Hardware Installation Guide
3-6
The Remote Access Concentrator must have an Internet (IP) address in
its memory before it can load its operational image across the Ethernet
via the IP protocol. Therefore, you must enter the IP address before
booting the Remote Access Concentrator from a UNIX load host. If you
do not define a subnet mask, the Remote Access Concentrator uses the
generic mask for the specified IP address.
The subnet mask must be set correctly for the network you are
using or erratic operation will result (boot failure or ICMP
"redirect" storms are likely results).
The Remote Access Concentrator tries to boot from a preferred UNIX
load host. If you do not define a preferred load host, the Remote Access
Concentrator broadcasts its load request and loads software from the first
host that responds.
If the part of the IP address containing the network or subnet address
differs from that of the preferred load or dump host, the host must be
reached through a gateway (or router). The addr command prompts you
for this gateway's IP address.
The Remote Access Concentrator uses the broadcast address parameter
when loading a file. If this parameter contains a specific address (for
example, 132.245.6.255), the Remote Access Concentrator uses only that
address for broadcast. If the value is all zeroes (0.0.0.0), the ROM Monitor
tries various combinations of broadcast addresses and subnet or network
broadcasts. The Remote Access Concentrator broadcasts its request three
times for each possible combination of broadcast addresses.