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NEC Neax 2400 Imx Fusion Network System Manual

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    							CHAPTER 7 ND-70185 (E)
Page 156
Revision 3.0
TROUBLESHOOTING
23-S FCH Failure Notification (Detection)
7.1 Repair Procedure
STEP 1: Make sure that the related Ethernet cables are securely inserted into the connectors. (See the example
shown below.) If not, securely insert the cable. In this instance, confirm whether System Message 23-
T FCH Fault Recovery Notification is displayed as the result of cable insertion. If no fault is found
in this step, move to STEP 2.
STEP 2: The following equipment is suspected to be faulty. Check for each item:
 Ethernet cables (10 BASE-T cables)
 ← See Figure 7-13 “How to Check 10 BASE-T cables.”
 HUB (PA-M96) 
← See Figure 7-14 “How to Replace HUB (PA-M96) card.”
 FCH (PA-FCHA) 
← See Figure 7-4 “How to Replace FCH (PA-FCHA) card.”
Figure 7-12   10 BASE-T Cable Connection Check
PIM 0 PIM 1
HUB
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
LANI
DTI

DTI
(PA-M96)
LANI
FCH card indicated 
by system message
(PA-M96)HUB
FCH (PA-FCHA)
Note:   10 BASE-T cable connections may differ depending on system configuration.: 10 BASE-T cable
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    							ND-70185 (E) CHAPTER 7Page 157
Revision 3.0
TROUBLESHOOTING
23-S FCH Failure Notification (Detection)
Figure 7-13   How to Check 10 BASE-T Cables
WARNING:
When a HUB card is placed in make-busy, all BASE-T interfaces connected to the 
HUB card become inoperative.
ATTENTIONContents 
Static Sensitive
Handling
Precautions  Required
2
MBOPE
10 BASE-T
: 10 BASE-T cable
Unplug and plug the  modular connector
MB MB
         HUB-HUB Cable Connection Test


 
1) Turn ON the MNT switch of the FCH cards which are connected 
     to the both HUB cards. 

2) Make sure that system message (23-W) FCH Alternate Routing  
    (start) is displayed for each FCH. 

3) Turn ON the MB key on the both HUB cards. 

4) Unplug and plug the modular connector a few times at each conne- 
    ctor since the connection may be a poor contact. 

5) If the above procedure does not result in normal operation, perform \
 
    the conductive test of the 10 BASE-T cable. 
              HUB-LANI Cable Connection Test 

 
1) Turn ON the MNT3 switch of the FCH cards which are connected 
     to the both HUB cards. 

2) Make sure that system message (23-W) FCH Alternate Routing (star\
t) 
    is displayed for each FCH. 

3) Turn ON the MB key on the HUB card. 

4) Unplug and plug the modular connector a few times at each connector 
     since the connection may be a poor contact. 

5) If the above procedure does not result in normal operation, perform \
the  
     conductive test of the 10 BASE-T cable. 
              HUB - FCH Cable Connection Test 

 
1) Turn ON the MNT 3 switch on the FCH card. (make-busy-request)  
2) Make sure that system message (23-W) FCH 
    Alternate Routing (start) is displayed. 
3) Turn ON the MB key on the FCH card.(make-busy) 
4) Turn ON the MB key on the HUB card.(make-busy) 
5) Unplug and plug the modular connector a few 
    times at each connector since the connection may 
    be a poor contact.  
6) If the above procedure does not result in normal operation, 
    perform the conductive test of  the 10 BASE-T cable.  
    

modular 
connector
modular 

connector
HUB (PA-M96)
HUB (PA-M96) FCH (PA-FCHA)DTI(PA-24DTR)MNT 3
MNT
 to LANI 
(PZ-PC19)
A
B
B
C
C A
MB
MB
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    							CHAPTER 7 ND-70185 (E) 
Page 158
Revision 3.0
TROUBLESHOOTING 
23-S FCH Failure Notification (Detection)Figure 7-14   How to Replace HUB (PA-M96) Card
W ARNING:  
When a H UB ca rd  is pl aced in make-bu sy, a ll BASE-T i nte rfaces conn ected  to  t he
HUB card become inoperative.
ATTENTIONContents 
Static Sensitive
Handling
Precautions  Required
2
MB
Anti-static Kit
OPE
10 BASE-T
HUB
MB key operation
2
MBOPE
10 BASE-T HUB
MB
MB
: 10 BASE-T cable
When this MB key is set in up position 
(Make-busy), all 10 BASE-T interfaces 
connected to this card become  
inoperative.
10 BASE-T Cable Disconnection
MNT 3HUB(PA-M96)HUB(PA-M96) FCH(PA-FCHA)DTI (PA-24DTR)
 to LANI  
(PZ-PC19)
[How to Replace HUB card]


 
1) Provide anti-static kit. 
2) Turn ON the MNT3 switch of the FCH cards which are connected 
     to the HUB card to be replaced. 
3) Make sure that system message (23-W) FCH Alternate Routing 
    (start) is displayed for the FCH cards. 
4) Turn ON the MB key on the HUB card. (make-busy) 
5) Disconnect the 10 BASE-T cables from the card. 
6) Extract the HUB card from the slot. 
7) Set key settings on the new HUB card. 
8) Turn ON the MB key on the new HUB card. 
9) Mount the new HUB card in the slot. 
10) Turn OFF the MB key on the card.
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    							ND-70185 (E) CHAPTER 7
Page 159
Revision 3.0
TROUBLESHOOTING
23-T FCH Fault Notification (Recovery)
8. 23-T FCH Fault Notification (Recovery)
This message is displayed when the FCH (PA-FCHA) card that was detected as faulty is recovered. The message
is displayed in the following format.
Figure 7-15   23-T FCCH Fault Recovery Notification
1. xx0x  xx00  0000  0000           2. 0000  0000  0000  0000.........
MG
UG
FCH Mounting Location
FCH Mounting Location
MG: Module Group 
U: Unit (0-3)
G: Group (00-23)FCH CKT No.
Circuit Number of FCH (0 - 7) FLTINF: Fault Information
FLTINF
FLTINF = 01H: ETHER Controller Initial NG
FLTINF = 02H: ETHER Link Failure  Note:
Note
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    							CHAPTER 7 ND-70185 (E)
Page 160
Revision 3.0
TROUBLESHOOTING
23-U FCH Status Information
9. 23-U FCH Status Information
This message is displayed when the status change of FCH (PA-FCHA) card is detected, which includes “FCH
Initial Setting Failure,” “ETHER Transfer Failure.” When this message is displayed, follow the procedure ex-
plained on a fault information basis. The figure below shows the general format of this message.
Figure 7-16   23-U FCCH Status Information
1. xx0x  xxxx  xxxx  xxxx           2. xxxx  xxxx  xxxx  xxxx.........
MG
U
G
FCH Mounting Location
FCH Mounting Location
MG: Module Group 
U: Unit (0-3)
G: Group (00-23)
FCH CKT No.
Circuit Number of FCH (0 - 7) FLTINF: Fault Information
FLTINF
TRC RS
b0 b7b0 b7b0 b7b0 b7b0 b7
:
:
: :
DATA* DATA*
* The contents vary depending on FLTINF.
0
Note 2
  Note 1
Note 1:FLTINF (Fault Information) consists of the following:
OOH: Initial Setting Failure Notification
18H Spanning Tree Abnormal Answer Notification
1DH ETHER Transfer Failure Notification
1EH Spanning Tree Generation End Notification
1FH Spanning Tree Generation Start Notification
85H Check Sum Verify Failure Notification
Note 2:When TRC = 1, the subsequent data indicates “Date Information” + “Primitive Contents”
* The detailed fault information is explained on the following pages.
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    							ND-70185 (E) CHAPTER 7
Page 161
Revision 3.0
TROUBLESHOOTING
23-U FCH Status Information
9.1 FLTINF = 00H Initial Setting Failure
This message is displayed when the Ethernet Controller Initial Setting ends in failure. The detailed information
is indicated in the following format.
Figure 7-17   23-U FCCH Status Notification - Initial Setting Failure
ETHER Results
00H: Normal
01H: ETHER Controller Reset Impossible 03H: ETHER Controller Initial NG
02H: Configuration Error 04H: ETHER Controller Initial NG
1. xx 0x  00 xx  xx xx  xx xx           2. xx xx    xx xx  0000  0000.........
MG
UG
FCH Mounting Location
FCH CKT No.TRC
RS
00
MG: Module Group 
U: Unit (0-3)
G: Group (0-23)TRC: Trace Confirmation Bit
(0/1 = Status Notification / Primitive Trace)
RS: Receive / Send Primitive Trace (not effective)
FCH CKT No. = Circuit No. of FCH

 00FLTINF: 00H = Initial Setting Failure
HDLC ResultsHDLC Results: 00H = Normal
ETHER ResultsETHER  Results:  See below.
b7 b0b7 b0b7 b0b7 b0b7 b0
b7 b0
MAC Address of FCH
b7 b0
b7 b0
Other Results: 00H = Normal
Other Results
: :
: :6 Bytes
Initial Setting Failure
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    							CHAPTER 7 ND-70185 (E)
Page 162
Revision 3.0
TROUBLESHOOTING
23-U FCH Status Information
9.2 FLTINF = 18H Spanning Tree Abnormal Answer
This message is displayed when Spanning Tree Abnormal Answer is detected. The detailed information is indi-
cated in the following format.
Figure 7-18   23-U FCCH Status Notification - Spanning Tree Abnormal Answer
MG
UG
FCH Mounting Location
FCH CKT No.TRC
RS
00
MG: Module Group 
U: Unit (0-3)
G: Group (0-23)TRC: Trace Confirmation Bit
(0/1 = Status Notification / Primitive Trace)
RS: Receive / Send Primitive Trace (not effective)
FCH CKT No. = Circuit No. of FCH

 18FLTINF: 18H = Spanning Tree Abnormal
                         Answer Notification
b7 b0b7 b0b7 b0
b7 b0
b7 b0
: :
: :32 Bytes
Spanning Tree Abnormal Answer
b7 b0
- 1 2 3
4 5 6 7
8 9 10 11 12 13 14 15
16 17 18 19 20 21 22 23
255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232........
........
* Each bit represents abnormal FPC (Fusion Point Code).  When 1 is set, 
   the FPC has not been assigned. (Use the AFPC command.)
Abnormal FPC Information
1. xx 0x  18 xx  xx xx  xx xx           2. xx xx    xx xx  xx xx  xx xx       3. xx xx   xx xx   xx xx     xx xx
4. xx xx  xx xx   xx xx  xx xx           5. xx xx   xx 00  0000   0000       6. 00 00  00 00  00 00    00 00
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    							ND-70185 (E) CHAPTER 7
Page 163
Revision 3.0
TROUBLESHOOTING
23-U FCH Status Information
9.2.1 Repair Procedure
A Fusion Point Code (FPC) is assigned using the AFPC command. If any FPC data has not been assigned
properly, this message is displayed. Make sure that the indicated FPC data is properly assigned. See the
sample below.
Figure 7-19   Spanning Tree Abnormal Answer
12



self-Node
Node B Node C
Node D
Node E
Node F
MAT Assign all nodes FPCs including nodes which are not directly connected.
Node GNode H
11
Node I
222
2324
21
101
This FPC has not
been assigned.
Spanning Tree 
Abnormal FPC = 2l
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    							CHAPTER 7 ND-70185 (E)
Page 164
Revision 3.0
TROUBLESHOOTING
23-U FCH Status Information
9.3 FLTINF = 1DH ETHER Transfer Failure
This message is displayed when an FCH card discards an abnormal Ethernet packet (i.e. abnormal IP address
destination) that was received from other node on the network.
Figure 7-20   23-U ETHER Transfer Failure
1. xx 0x  1D xx  xx xx  xx xx           2. xx xx    xx xx    xx xx   xx xx     3. xx xx   xx xx    xx xx    xx xx
4. xx xx  xx  xx  xx xx  xx xx           5. xx xx    xx xx    xx xx   xx xx     6. xx xx   xx xx    xx xx    xx xx
7. xx xx  xx  xx  xx xx  xx xx           8. xx 00    00 00   00 00  00 00    9. 00 00  00 00   00 00    00 00
MG
UG
FCH Mounting Location
FCH CKT No.TRC
RS
00
MG: Module Group 
U: Unit (0-3)
G: Group (0-23)TRC: Trace Confirmation Bit
(0/1 = Status Notification / Primitive Trace)
RS: Receive / Send Primitive Trace (not effective)
FCH CKT No. = Circuit No. of FCH

 1DFLTINF: 1D H = ETHER Transfer Failure Notification
Transfer Failure Status
b7 b0b7 b0b7 b0b7 b0
Discarded IP Packet Information
b7 b0
b7 b0
: :
: :53 Bytes
ETHER Transfer Failure
IP Header Part: 42 Bytes
IP User Part:     11 Bytes
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    							ND-70185 (E) CHAPTER 7
Page 165
Revision 3.0
TROUBLESHOOTING
23-U FCH Status Information
9.4 FLTINF = 1EH Spanning Tree Generation End
This message is displayed when Spanning Tree Generation is complete. The detailed information is indicated
in the following format.
Figure 7-21   23-U FCCH Status Notification - Spanning Tree Generation End
1. xx 0x  1E xx  xx xx  xx xx           2. xx xx    xx xx  xx xx  xx xx       3. xx xx   xx xx   xx xx     xx xx
4. xx xx  xx xx   xx xx  xx xx           5. xx xx   xx 00  0000   0000       6. 00 00  00 00  00 00    00 00 
MG
UG
FCH Mounting Location
FCH CKT No.TRC
RS
00
MG: Module Group 
U: Unit (0-3)
G: Group (0-23)TRC: Trace Confirmation Bit
(0/1 = Status Notification / Primitive Trace)
RS: Receive / Send Primitive Trace (not effective)
FCH CKT No. = Circuit No. of FCH

 1EFLTINF: 1EH = Spanning Tree Generation          
                          End Notification
b7 b0b7 b0b7 b0
b7 b0
b7 b0
: :
: :32 Bytes
Spanning Tree  Generation End
b7b0
- 1 2 3 4 5 6 7
8 9 10 11 12 13 14 15
16  17 18 19 20 21 22 23
255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 ..............
........
* Each bit represents FPC (Fusion Point Code).  When 1 is set, 
   the FPC has joined the spanning tree configuration.
Spanning Tree Configuration Results
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