Fltinf = 85H Checksum Verification Failure; Figure 7-22 23-U Fcch Status Notification - Spanning Tree Generation; Figure 7-23 23-U Fcch Status Notification - Checksum Verification Failure - NEC NEAX 2400 IPX Manual

"Spanning Tree Generation Start"
1. xx 0x 1F xx 00 00 00 00
b7
0 0
TRC RS
b7
MG U
FCH Mounting Location

Figure 7-22 23-U FCCH Status Notification - Spanning Tree Generation

9.6 FLTINF = 85H Checksum Verification Failure

Figure 7-23 illustrates the message that is displayed when Checksum verification has resulted in failure between
the PBX and the firmware.
"Checksum Verification Failure"
1. xx 0x 85 xx xx 00 00 00
b7
0
TRC RS
b7
MG
U
FCH Mounting Location

Figure 7-23 23-U FCCH Status Notification - Checksum Verification Failure

2. 00 00 00 00 00 00 00 00.........
b7
b7 b0
1F
b0
FCH CKT No.
b0
G
2. 00 00 00 00 00 00 00 00.........
b7
b7
b7
85
b0
0
FCH CKT No.
b0
G
NDA-24299
b0
Spanning Tree Generation Start: 00H = Normal
FLTINF: 1FH = Spanning Tree Generation Start
TRC: Trace Confirmation Bit
(0/1 = Status Notification / Primitive Trace)
RS: Receive / Send Primitive Trace (not effective)
FCH CKT No. = Circuit No. of FCH
MG: Module Group (0/1)
U: Unit (0-3)
G: Group (0-23)
b0
Checksum of Firmware
b0
Checksum of PBX
b0
FLTINF: 85 H = Checksum Verification Failure
TRC: Trace Confirmation Bit
(0/1 = Status Notification / Primitive Trace)
RS: Receive / Send Primitive Trace (not effective)
FCH CKT No. = Circuit No. of FCH
MG: Module Group (0/1)
U: Unit (0-3)
G: Group (0-23)
TROUBLESHOOTING
23-U FCH Status Information
CHAPTER 7
Page 181
Revision 1.0