CANOGA PERKINS 9145E Standard NID Software Version 1.0 - Manual (Page 51)

Diagnostics 9145E NID Software User’s Manual
VLAN Loopback
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4.4 VLAN Loopback
The VLAN Loopback feature provides the capability for Layer 2 per VLAN loopback. It includes a loopback
responder and a loopback initiator (Layer 2 Ping). The frame format and message processing is 802.1ag
compatible. Any vendor having implemented the 802.1ag standard can loop back the 9145E initiated
loopback message and vise versa.
Using the loopback initiator, the 9145E can perform a Layer 2 Ping test. For the loopback responder, the
9145E implements a set of default values so it can loop back any VLAN ID and any MD level, and the
Ethertype will be defaulted to the standard 0x8902.
The user may change the Ethertype via UI, Telnet or SNMP. Both IEEE 802.3 and LLC SNAP formats are
supported. The 9145E loopback responder responds to both formats. For the loopback initiator, the user
selects which format to use.
Figure 4-6 VLAN Loopback
To configure 802.1ag Loopback, type 1 and press Enter. The 802.1ag Loopback Configuration screen
(Figure 4-6) opens.
Administration State - To enable or disable the loopback responder, type 1 and press Enter. Cycle
between Enable and Disable. Press Enter to confirm the setting.
VLAN ID - This is the VLAN ID to match for responding to LBMs (Loopback Messages initiated by
another agent).
To enter a VLAN ID or a range, type 2 and press Enter. Use Backspace to remove the current setting,
then type in the VLAN ID or range. Press Enter to confirm the setting.
Canoga Perkins Corp. Ethernet Network Interface Device 21-APR-2009
Model 9145E-404-8-0 V01.00 F506 16:50:44
---------------------------------VLAN LOOPBACK---------------------------------
1) 802.1AG Loopback Configuration
2) VLAN Loopback Statistics
3) L2 Ping Generator
Select[1-3]:
------------------------------------Messages-----------------------------------