Chapter 3
TL1 Errors
Table 3-63
SWFA Error Messages
Status, Working Unit Failed or Missing
Working Unit Failed Or Missing
Table 3-64
SWLD Error Messages
Working Unit Locked
3.2 Echo
In order to improve telnet functionality for automated systems, the echo function has been turned off in
ONS 15454 Release 3.0 and later. This change is transparent to users running standard UNIX-compliant
telnet clients; however, PC users might need to change their client setup to enable "local echo." This is
normally accomplished by a drop-down list or a preference attribute.
To test the local echo on your PC client, use the RTRV-HDR command. If you receive a response but no
data, set local echo ON. Cisco recommends that you close any windows containing sensitive information
after exiting a TL1 session.
SWFA Errors
SWLD Errors
Cisco ONS SONET TL1 Command Guide, R6.0
3.2 Echo
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