ADTRAN 3000 User Manual page 121

L1 not up
The network interface is not active.
L2 not up
The data link layer interface is not active.
L3 not up
The call control interface is not active.
L2 #2 not up
The data link layer interface for a second call (BONDING) is
not active.
L3 #2 not up
The call control layer interface for a second call (BONDING)
is not active.
LDN TOO LONG
The local directory number entered has too many digits.
Login failed
Unable to connect to remote unit on remote configuration at-
tempt.
MANDATORY_IE_LEN_ERR
Mandatory information element length error.
MANDATORY_IE_MISSING
Mandatory information element missing.
MULTILINK PPP UP
Unit connected with Multilink PPP.
Need 64K call
The BONDING protocol requires the Express 3000 to be con-
figured for 64K data call types.
NETWORK BUSY
The ISDN switch is busy and unable to process a call.
61203153L2-20 Express 3000 User Manual
Appendix B. Status Buffer Messages
B-7