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  • Timeout frequentissimi - linea VDSL appena attivata (upgrade da ADSL)

Salve,
a casa dei miei (Roma centro) è stato pochi giorni fa fatto il passaggio da ADSL a VDSL. Purtroppo sono su linea rigida e dunque nonostante palazzi della strada di fronte arrivino a 200Mbps in download su profilo 35b, loro arrivano a massimo 26Mbps down e 6 up. Ma non è questo il problema.
Il problema (che rende la linea quasi inutilizzabile per cose serie, ad esempio videoconferenze!) è che si verificano timeout frequentissimi (ogni circa 10/15 minuti, altri giorni anche più frequenti). La cosa strana è che sembra che questi timeout siano direttamente correlati al livello di attività in casa. Ho notato che utilizzando applicazioni che usano costantemente parecchia banda (appunto Zoom, Skype, Teams, ecc) i timeout si verificano ancora più spesso (3 minuti).
Questo non succedeva con la ADSL.
Come modem/router stanno utilizzando quello originale della WindTRE (l'Hub).

Potrebbe essere il modem difettoso?

Allego le statistiche della linea (ho notato tantissimi errori FEC interleaved) e grafico ping di questa notte/mattina (come potete vedere di notte quando l'attività è praticamente zero non ci sono timeout, appena aumenta la banda utilizzata si verificano i timeout). Il grafico è stato preso da dispositivo connesso via ethernet.

`===========================================================
VDSL link status: up

Opmode: ITU G.993.2(VDSL2), G.998.4(G.INP)
TPSTC type: 64/65B PTM TC

near-end interleaved channel bit rate: 26504 kbps
near-end fast channel bit rate: 0 kbps
far-end interleaved channel bit rate: 0 kbps
far-end fast channel bit rate: 6450 kbps

near-end FEC error fast: 0
near-end FEC error interleaved: 13191505
near-end CRC error fast: 0
near-end CRC error interleaved: 10793
near-end HEC error fast: 0
near-end HEC error interleaved: 0
far-end FEC error fast: 2749
far-end FEC error interleaved: 0
far-end CRC error fast: 198
far-end CRC error interleaved: 0
far-end HEC error fast: 0
far-end HEC error interleaved: 0
VDSL uptime :14:28, 6 secs
VDSL activetime :0 min, 14 secs

Downstream:
relative capacity occupation: 100%
noise margin downstream: 6.1 dB
output power upstream: 6.9 dbm
attenuation downstream: 20.0 dB

Upstream:
relative capacity occupation: 100%
noise margin upstream: 5.9 dB
output power downstream: 18.5 dbm
attenuation upstream: 4.6 dB

Bit table:
carrier load: number of bits per tone
tone 0- 31: 00 00 00 0a bc cd dd de dd dd dd dd cc cc ba 88
tone 32- 63: 7a aa ab cb bc cc dc cd dd ed ed ee ee fe ee ef
tone 64- 95: ee ee dd de de de de ee dd de fd de ee ef ef fe
tone 96-127: fe ed ed ed ee de dd de ed ee dd dd dd de de dd
tone 128-159: dd dd dd dd dc dd cc dd cd cd cc dd dc cd cd cb
tone 160-191: bb bb cc bb bb bb bc cc bc cb bb cb bb bb bb bb
tone 192-223: bb cb cb bb ab cb ba aa ba aa ab ab ba ba aa aa
tone 224-255: aa aa ab ab aa bb bb bb bb bb bb ba bb ba bb bb

near end itu identification: 26005443434e5c12
far end itu identification: b5004244434dc016
attain upstream: 6451
attain downstream: 30247

VDSL activetime second: 14
VDSL total ativetime second: 14
ATURANSIRev: 0
ATUCANSIRev: 0
ATURANSIStd: 0
ATUCANSIStd: 0
Interleave Depth: 8

atur chan interleave delay: 0
atur chan prev tx rate: 6450 kbps
atur chan curr tx rate: 6450 kbps
atur chan crc block len: 65535
Dsl Standard: VDSL2

Dsl Type: ANNEX_B

VDSL link status: up

showtime
ReceiveBlock: 810690
TransmitBlock: 810690
CellDelin: 0
LinkRetrain: 2
InitErrors: 1
InitTimeouts: 0
LossOfFraming: 0
LOF: 0
ErroredSecs: 1260
SeverelyErroredSecs: 427
near-end FEC error fast: 0
near-end FEC error interleaved: 13191505
near-end CRC error fast: 0
near-end CRC error interleaved: 10793
near-end HEC error fast: 0
near-end HEC error interleaved: 0
far-end FEC error fast: 2749
far-end FEC error interleaved: 0
far-end CRC error fast: 198
far-end CRC error interleaved: 0
far-end HEC error fast: 0
far-end HEC error interleaved: 0
atur chan curr rx blocks: 256441184
atur chan curr tx blocks: 49036656
atur chan curr correct blocks: 0
atur chan curr uncorrect blocks: 1
curdaySt TimeElapsed: 52135
quthour ATUR Chan TimeElapsed: 807
prevdaySt ATUR Chan MoniSecs: 0
ATUR Chan Perf Valid Intervals: 4
ATUR Chan Perf Invalid Intervals: 0
ES downstream: 1260
ES upstream: 52
SES downstream: 427
SES upstream: 19
UAS downstream: 21
UAS upstream: 21
RX BitError Count: 0

TX BitError Count: 0

Quarter hour Start Showtime
quthour ReceiveBlock: 798132
quthour TransmitBlock: 798131
quthour CellDelin: 0
quthour LinkRetrain: 2
quthour InitErrors: 1
quthour InitTimeouts: 0
quthour LossOfFraming: 0
quthour ErroredSecs: 1260
quthour SeverelyErroredSecs: 427
quthour near-end FEC error fast: 0
quthour near-end FEC error interleaved: 13148009
quthour near-end CRC error fast: 0
quthour near-end CRC error interleaved: 10793
quthour near-end HEC error fast: 0
quthour near-end HEC error interleaved: 0
quthour far-end FEC error fast: 2749
quthour far-end FEC error interleaved: 0
quthour far-end CRC error fast: 198
quthour far-end CRC error interleaved: 0

quthour ATUR Chan RxBlocks: 252466256
quthour ATUR Chan TxBlocks: 48276568
quthour ATUR Chan CorrectBlocks: 0

quthour ATUR Chan UnCorrectBlocks: 0

Current day Start Showtime
curdaySt ReceiveBlock: 0
curdaySt TransmitBlock: 0
curdaySt CellDelin: 0
curdaySt LinkRetrain: 0
curdaySt InitErrors: 0
curdaySt InitTimeouts: 0
curdaySt LossOfFraming: 0
curdaySt ErroredSecs: 0
curdaySt SeverelyErroredSecs: 0
curdaySt near-end FEC error fast: 0
curdaySt near-end FEC error interleaved: 0
curdaySt near-end CRC error fast: 0
curdaySt near-end CRC error interleaved: 0
curdaySt near-end HEC error fast: 0
curdaySt near-end HEC error interleaved: 0
curdaySt far-end FEC error fast: 0
curdaySt far-end FEC error interleaved: 0
curdaySt far-end CRC error fast: 0
curdaySt far-end CRC error interleaved: 0

curdaySt ATUR Chan RxBlocks: 0
curdaySt ATUR Chan TxBlocks: 0
curdaySt ATUR Chan CorrectBlocks: 0

curdaySt ATUR Chan UnCorrectBlocks: 0

xDSL link status: up

The most recent previous 1 day Start Showtime
prevdaySt ATUR Chan RxBlocks: 0
prevdaySt ATUR Chan TxBlocks: 0
prevdaySt ATUR Chan CorrectBlocks: 0

prevdaySt ATUR Chan UnCorrectBlocks: 0

VDSL link status: up

Total Showtime
total ReceiveBlock: 0
total TransmitBlock: 0
total CellDelin: 0
total LinkRetrain: 0
total InitErrors: 0
total InitTimeouts: 0
total LossOfFraming: 0
total ErroredSecs: 0
total SeverelyErroredSecs: 0
total near-end FEC error fast: 0
total near-end FEC error interleaved: 13191505
total near-end CRC error fast: 0
total near-end CRC error interleaved: 10793
total near-end HEC error fast: 0
total near-end HEC error interleaved: 0
total far-end FEC error fast: 2749
total far-end FEC error interleaved: 0
total far-end CRC error fast: 198
total far-end CRC error interleaved: 0

total ATUR Chan RxBlocks: 0
total ATUR Chan TxBlocks: 0
total ATUR Chan CorrectBlocks: 0
total ATUR Chan UnCorrectBlocks: 0

total ES downstream: 0
total ES upstream: 0
total SES downstream: 0
total SES upstream: 0
total UAS downstream: 0
total UAS upstream: 0
`

Grazie in anticipo!

    Dimenticavo, ho provato a utilizzare altri DNS.. stessa cosa

    bastiancointreau L'impianto è sezionato? Non è disponibile la FTTH?

    Hai tantissimi errori CRC che denotano problemi fisici sulla linea. Se l'impianto di casa è gi ottimizzato, apri un guasto con tim perchè probabilmente servirà l'intervento di un tecnico.

    Prima, in ADSL, il doppino della presa principale era collegato ad uno splitter che usciva in telefono (che poi andava in due derivazioni per prese in casa) e DSL (collegato al modem). Ora dopo il passaggio in VDSL ho tolto lo splitter, collegato la presa principale al nuovo modem e il cavo che andava ai telefoni alla presa telefono del modem (quindi rimuovendo lo splitter). Credo questo significhi che l'impianto è sezionato..?

    FTTH non è disponibile.

    Posso chiamare TIM e aprire guasto anche se sto con altro operatore (WindTRE)?

    Grazie!

      bastiancointreau Posso chiamare TIM e aprire guasto anche se sto con altro operatore (WindTRE)?

      No

      Grazie. La struttura dell'impianto come l'ho descritta come vi sembra?

        • [cancellato]

        bastiancointreau Non si è capito molto, il cavo che arriva da fuori casa deve andare diretto nel modem, non ci devono essere attaccate altre derivazioni.

        12 giorni dopo

        Ciao a tutti! Riesumo questo thread perché alla fine il problema era dell’impianto di casa. C’era una derivazione e il drop faceva parecchia strada prima di arrivare al modem. Ora ho sistemato e il modem è collegato direttamente al drop. Come giudicate questi parametri, considerando che sto su linea rigida (profilo 8b)? Grazie!

        ===========================================================
        VDSL link status: up

        Opmode: ITU G.993.2(VDSL2), G.998.4(G.INP)
        TPSTC type: 64/65B PTM TC

        near-end interleaved channel bit rate: 42009 kbps
        near-end fast channel bit rate: 0 kbps
        far-end interleaved channel bit rate: 0 kbps
        far-end fast channel bit rate: 7611 kbps

        near-end FEC error fast: 0
        near-end FEC error interleaved: 68559619
        near-end CRC error fast: 0
        near-end CRC error interleaved: 6299
        near-end HEC error fast: 0
        near-end HEC error interleaved: 0
        far-end FEC error fast: 10
        far-end FEC error interleaved: 0
        far-end CRC error fast: 0
        far-end CRC error interleaved: 0
        far-end HEC error fast: 0
        far-end HEC error interleaved: 0
        VDSL uptime : 3:11, 0 secs
        VDSL activetime :0 min, 15 secs

        Downstream:
        relative capacity occupation: 100%
        noise margin downstream: 7.0 dB
        output power upstream: 4.2 dbm
        attenuation downstream: 18.8 dB

        Upstream:
        relative capacity occupation: 100%
        noise margin upstream: 6.0 dB
        output power downstream: 18.4 dbm
        attenuation upstream: 4.3 dB

        Bit table:
        carrier load: number of bits per tone
        tone 0- 31: 00 00 00 09 bb cd dd ee ed dd dd dd dd cc ca 98
        tone 32- 63: 8b cc dd de de ee ee fe ff ff ff ff ff ff ff ff
        tone 64- 95: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
        tone 96-127: ef ef ff fe fe ee fe ee ff ee fe ee fe ee ee ee
        tone 128-159: ee ee ee ed de de de dd dd de ed dd dd dd dd dd
        tone 160-191: dd ed dd dd dd dd dd dd dd dd dd dd dd dd dd dd
        tone 192-223: dd dd dd cd dd cd cc cd cc cc dc cc cc cc cc cc
        tone 224-255: cd dd dd cc dc dc cc cc cd cd dd cc dd cc dc cc

        near end itu identification: 26005443434e5c12
        far end itu identification: b5004244434dc016
        attain upstream: 7612
        attain downstream: 46739

        VDSL activetime second: 15
        VDSL total ativetime second: 15
        ATURANSIRev: 0
        ATUCANSIRev: 0
        ATURANSIStd: 0
        ATUCANSIStd: 0
        Interleave Depth: 8

        atur chan interleave delay: 0
        atur chan prev tx rate: 0 kbps
        atur chan curr tx rate: 7611 kbps
        atur chan crc block len: 0
        Dsl Standard: VDSL2

        Dsl Type: ANNEX_B

        VDSL link status: up

        showtime
        ReceiveBlock: 178384
        TransmitBlock: 178384
        CellDelin: 0
        LinkRetrain: 2
        InitErrors: 1
        InitTimeouts: 0
        LossOfFraming: 0
        LOF: 0
        ErroredSecs: 343
        SeverelyErroredSecs: 130
        near-end FEC error fast: 0
        near-end FEC error interleaved: 68559619
        near-end CRC error fast: 0
        near-end CRC error interleaved: 6299
        near-end HEC error fast: 0
        near-end HEC error interleaved: 0
        far-end FEC error fast: 10
        far-end FEC error interleaved: 0
        far-end CRC error fast: 0
        far-end CRC error interleaved: 0
        far-end HEC error fast: 0
        far-end HEC error interleaved: 0
        atur chan curr rx blocks: 89435760
        atur chan curr tx blocks: 12732811
        atur chan curr correct blocks: 0
        atur chan curr uncorrect blocks: 1
        curdaySt TimeElapsed: 11510
        quthour ATUR Chan TimeElapsed: 704
        prevdaySt ATUR Chan MoniSecs: 0
        ATUR Chan Perf Valid Intervals: 4
        ATUR Chan Perf Invalid Intervals: 0
        ES downstream: 343
        ES upstream: 0
        SES downstream: 130
        SES upstream: 0
        UAS downstream: 21
        UAS upstream: 21
        RX BitError Count: 0

        TX BitError Count: 0

        Quarter hour Start Showtime
        quthour ReceiveBlock: 167430
        quthour TransmitBlock: 167430
        quthour CellDelin: 0
        quthour LinkRetrain: 2
        quthour InitErrors: 1
        quthour InitTimeouts: 0
        quthour LossOfFraming: 0
        quthour ErroredSecs: 341
        quthour SeverelyErroredSecs: 130
        quthour near-end FEC error fast: 0
        quthour near-end FEC error interleaved: 60337727
        quthour near-end CRC error fast: 0
        quthour near-end CRC error interleaved: 6293
        quthour near-end HEC error fast: 0
        quthour near-end HEC error interleaved: 0
        quthour far-end FEC error fast: 10
        quthour far-end FEC error interleaved: 0
        quthour far-end CRC error fast: 0
        quthour far-end CRC error interleaved: 0

        quthour ATUR Chan RxBlocks: 83940280
        quthour ATUR Chan TxBlocks: 11950358
        quthour ATUR Chan CorrectBlocks: 0

        quthour ATUR Chan UnCorrectBlocks: 0

        Current day Start Showtime
        curdaySt ReceiveBlock: 0
        curdaySt TransmitBlock: 0
        curdaySt CellDelin: 0
        curdaySt LinkRetrain: 0
        curdaySt InitErrors: 0
        curdaySt InitTimeouts: 0
        curdaySt LossOfFraming: 0
        curdaySt ErroredSecs: 0
        curdaySt SeverelyErroredSecs: 0
        curdaySt near-end FEC error fast: 0
        curdaySt near-end FEC error interleaved: 0
        curdaySt near-end CRC error fast: 0
        curdaySt near-end CRC error interleaved: 0
        curdaySt near-end HEC error fast: 0
        curdaySt near-end HEC error interleaved: 0
        curdaySt far-end FEC error fast: 0
        curdaySt far-end FEC error interleaved: 0
        curdaySt far-end CRC error fast: 0
        curdaySt far-end CRC error interleaved: 0

        curdaySt ATUR Chan RxBlocks: 0
        curdaySt ATUR Chan TxBlocks: 0
        curdaySt ATUR Chan CorrectBlocks: 0

        curdaySt ATUR Chan UnCorrectBlocks: 0

        xDSL link status: up

        The most recent previous 1 day Start Showtime
        prevdaySt ATUR Chan RxBlocks: 0
        prevdaySt ATUR Chan TxBlocks: 0
        prevdaySt ATUR Chan CorrectBlocks: 0

        prevdaySt ATUR Chan UnCorrectBlocks: 0

        VDSL link status: up

        Total Showtime
        total ReceiveBlock: 0
        total TransmitBlock: 0
        total CellDelin: 0
        total LinkRetrain: 0
        total InitErrors: 0
        total InitTimeouts: 0
        total LossOfFraming: 0
        total ErroredSecs: 0
        total SeverelyErroredSecs: 0
        total near-end FEC error fast: 0
        total near-end FEC error interleaved: 68559619
        total near-end CRC error fast: 0
        total near-end CRC error interleaved: 6299
        total near-end HEC error fast: 0
        total near-end HEC error interleaved: 0
        total far-end FEC error fast: 10
        total far-end FEC error interleaved: 0
        total far-end CRC error fast: 0
        total far-end CRC error interleaved: 0

        total ATUR Chan RxBlocks: 0
        total ATUR Chan TxBlocks: 0
        total ATUR Chan CorrectBlocks: 0
        total ATUR Chan UnCorrectBlocks: 0

        total ES downstream: 0
        total ES upstream: 0
        total SES downstream: 0
        total SES upstream: 0
        total UAS downstream: 0
        total UAS upstream: 0

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