Newsgroup: it.comp.reti.cisco
Titolo: serial 0 hardware failure?

Salve a tutti,
sto riscontrando un problema con un cisco 1600 dislocato in una sede
perifierica.
E' connesso tramite HDSL 2 mbits a interbusiness, encap frame relay.
Da un paio di giorni non funziona, la configurazione
non e' stata toccata, la serial 0 e' up e il line proto down. Non
riesce
a scambiare i msg lmi con il router remoto, tant'e' che mi da lmi dte
down.
Interbusiness mi ha fatto sapere che da parte loro e' tutto ok,
probabilmente
si tratta di un guasto sul mio router, piu' precisamente sulla
seriale. Ora mi chiedo:  come e' possibile diagnosticare un hw failure
di una seriale?
Grazie.

 di una seriale?
"Sh interface serialX" e "sh controllers serialX"
Ti invio gli output di questi due comandi per una seriale frame relay che
funziona perfettamente.
Se dall'analisi di questi comandi non esce nulla di definitivo puoi sempre
fare la prova pratica, che ti da risultati definitivi e sicuri al 100%, vale
a dire prendere un altro router dotato di seriale, un cavo v35 dce e
collegare i due router tra di loro.
router#sh int s1/0
Serial1/0 is up, line protocol is up
  Hardware is PowerQUICC Serial
  MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation FRAME-RELAY, loopback not set
  Keepalive set (10 sec)
  LMI enq sent  15382, LMI stat recvd 15382, LMI upd recvd 0, DTE LMI up
  LMI enq recvd 0, LMI stat sent  0, LMI upd sent  0
  LMI DLCI 1023  LMI type is CISCO  frame relay DTE
  FR SVC disabled, LAPF state down
  Broadcast queue 0/64, broadcasts sent/dropped 0/0, interface broadcasts 0
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 1d18h
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 2000 bits/sec, 3 packets/sec
  5 minute output rate 1000 bits/sec, 3 packets/sec
     91271 packets input, 12432193 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     1 input errors, 0 CRC, 1 frame, 0 overrun, 0 ignored, 0 abort
     67398 packets output, 9877660 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions
     DCD=up  DSR=up  DTR=up  RTS=up  CTS=up
router#sh controllers serial 1/0
Interface Serial1/0
Hardware is PowerQUICC MPC860
DTE V.35 TX and RX clocks detected.
idb at 0x83413ED0, driver data structure at 0x8341BCB4
SCC Registers:
General [GSMR]=0x2:0x00000030, Protocol-specific [PSMR]=0x8
Events [SCCE]=0x0000, Mask [SCCM]=0x001F, Status [SCCS]=0x06
Transmit on Demand [TODR]=0x0, Data Sync [DSR]=0x7E7E
Interrupt Registers:
Config [CICR]=0x00365F80, Pending [CIPR]=0x0000C802
Mask   [CIMR]=0x60301400, In-srv  [CISR]=0x00000000
Command register [CR]=0x600
Port A [PADIR]=0x0000, [PAPAR]=0x0F0F
       [PAODR]=0x0000, [PADAT]=0xFEFE
Port B [PBDIR]=0x0300F, [PBPAR]=0x0D00E
       [PBODR]=0x00000, [PBDAT]=0x30EDC
Port C [PCDIR]=0x008, [PCPAR]=0x000
       [PCSO]=0x0B0,  [PCDAT]=0xF04, [PCINT]=0x000
Receive Ring
        rmd(FF003130): status 9000 length 42 address 5949E24
        rmd(FF003138): status 9000 length 2E address 59463A4
        rmd(FF003140): status 9000 length 42 address 5942924
        rmd(FF003148): status 9000 length 2E address 59449A4
        rmd(FF003150): status 9000 length 42 address 59497A4
        rmd(FF003158): status 9000 length 42 address 5943624
        rmd(FF003160): status 9000 length 2E address 5943CA4
        rmd(FF003168): status 9000 length 17 address 5945D24
        rmd(FF003170): status 9000 length 42 address 5945024
        rmd(FF003178): status 9000 length 2E address 594C524
        rmd(FF003180): status 9000 length 42 address 5946A24
        rmd(FF003188): status 9000 length 2E address 594B1A4
        rmd(FF003190): status 9000 length 42 address 5942FA4
        rmd(FF003198): status 9000 length 2E address 594B824
        rmd(FF0031A0): status 9000 length 42 address 5947DA4
        rmd(FF0031A8): status B000 length 2E address 59470A4
Transmit Ring
        tmd(FF0031B0): status 5C00 length 60 address 59CD094
        tmd(FF0031B8): status 5C00 length 50 address 57FAED4
        tmd(FF0031C0): status 5C00 length 64 address 57FB1F4
        tmd(FF0031C8): status 5C00 length 40 address 57FB514
        tmd(FF0031D0): status 5C00 length 80 address 57FABB4
        tmd(FF0031D8): status 5C00 length 64 address 57FC4B4
        tmd(FF0031E0): status 5C00 length 40 address 59CE994
        tmd(FF0031E8): status 5C00 length 40 address 57FA254
        tmd(FF0031F0): status 5C00 length 40 address 59CD9F4
        tmd(FF0031F8): status 5C00 length 40 address 57FB834
        tmd(FF003200): status 5C00 length 244 address 59CD3B4
        tmd(FF003208): status 5C00 length 244 address 59CDD14
        tmd(FF003210): status 5C00 length 1A0 address 59CCD74
        tmd(FF003218): status 5C00 length D address 59CB5B4
        tmd(FF003220): status 5C00 length D address 57F9714
        tmd(FF003228): status 7C00 length 40 address 57FA894
tx_limited=0(16)
SCC GENERAL PARAMETER RAM (at 0xFF003D00)
Rx BD Base [RBASE]=0x3130, Fn Code [RFCR]=0x18
Tx BD Base [TBASE]=0x31B0, Fn Code [TFCR]=0x18
Max Rx Buff Len [MRBLR]=1548
Rx State [RSTATE]=0x18008440, BD Ptr [RBPTR]=0x3178
Tx State [TSTATE]=0x18000548, BD Ptr [TBPTR]=0x3220
SCC HDLC PARAMETER RAM (at 0xFF003D38)
CRC Preset [C_PRES]=0xFFFF, Mask [C_MASK]=0xF0B8
Errors: CRC [CRCEC]=0, Aborts [ABTSC]=0, Discards [DISFC]=0
Nonmatch Addr Cntr [NMARC]=0
Retry Count [RETRC]=0
Max Frame Length [MFLR]=1608
Rx Int Threshold [RFTHR]=0, Frame Cnt [RFCNT]=39747
User-defined Address 0000/0000/0000/0000
User-defined Address Mask 0x0000
buffer size 1524
PowerQUICC SCC specific errors:
0 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
0 transmitter underruns
0 transmitter CTS losts

 Grazie.
fai un loop sul dce... e vedi se ricevi i messaggi lmi da te inviati
ciao Lorenzo--
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