Using MOP Ethernet Functions,
Continued
Identify the system’s Ethernet circuit and circuit state, enter the
SHOW KNOWN CIRCUITS command from the system conducting
the test (system 2).
***system 2 (system conducting test)***
$ MCR NCP
NCP>SHOW KNOWN CIRCUITS
Known Circuit Volatile Summary as of 14-NOV-1991 16:01:53
Circuit
State
Loopback
Adjacent
Name
Routing Node
ISA-0
on
25.1023 (LAR25)
NCP>SET CIRCUIT ISA-0 STATE OFF
NCP>SET CIRCUIT ISA-0 SERVICE ENABLED
NCP>SET CIRCUIT ISA-0 STATE ON
NCP>LOOP CIRCUIT ISA-0 PHYSICAL ADDRESS 08-00-2B-28-18-2C
WITH ZEROES
NCP>EXIT
$
If the loopback message was received successfully, the NCP
prompt reappears with no messages.
Loopback
Assist
Function
The following two examples show how to perform the loopback
assist function using another node on the network as an assistant
(system 3) and the system under test as the destination. Both the
assistant and the system under test are attempting to boot from
the network. You also need the physical address of the assistant
node.
Examples:
***system #3 (loopback assistant)***
>>>SHOW ETHERNET
Ethernet Adapter
-EZA0 (08-00-2B-1E-76-9E)
>>>b eza0
(BOOT/R5:2 EZA0)
2..
-EZA0
Retrying network bootstrap.
***system 2***
Continued on next page
5–85