CANOGA PERKINS 9145 Network Interface Device - Manual (Page 90)

9145 Network Interface Device 4-10
accessing the Loopback Setup Screen, see Chapter 4. When in loopback mode, the 9145
filters the incoming packets to identify test packets identified by the MAC address.
The 9145 is configurable to swap the origination and destination MAC Addresses and to
Recalculate the looped frame’s CRC. Test packets are returned to the source according to
the selected options.
Use the Loopback Setup Menu to display current loopback status, initiate loopbacks, and
configure Address Swapping and CRC Recalculation options. To run a loopback test, follow
these steps:
1. At the Diagnostics Menu, type [ 1 ], "Loopback Setup," and press <Enter>. The Loopback
Setup Menu appears. When the 9145 is connected to a remote 9145 and SBMC is
enabled, the remote 9145’s loopback functions are controlled from the local 9145.
2. Type the number for the loopback you want to set, press <Tab> to highlight the Remote
column if needed, pressing <Space> cycles through the options, then press <Enter>.
1. Loopback State
Sets Loopback Test to Disabled (off), Local, Remote, or Clear All Loopbacks
2. Swap MAC Address at Loopback Point?
Sets if the origination and destination MAC addresses are to be swapped. Yes
swaps the addresses, No does not.
3. Recalculate CRC at Loopback Point?
Sets if the 9145 is to recalculate the CRC when MAC addresses are swapped.
Yes recalculates the CRC, No does not.
3. When you finish running Loopback, press <Esc> to return to the Diagnostics screen.
Canoga Perkins Corp. Ethernet Network Interface Device 29-Nov-2006
Model 9145-5 V05.00 F96 9145 D 12:00:20
------------------------------------LOOPBACK SETUP------------------------------
Local Remote L357
Loop Test MAC Address: 00 40 2A 80 87 3A 00 40 2A 81 24 69
1) Loopback State Disabled Disabled
2) Swap MAC Address
at Loopback Point? Yes Yes
3) Recalculate CRC
at Loopback Point? Yes Yes
4) Loopback Option Control Software
Select [1-4]:
------------------------------------Messages------------------------------------