无法在 Cisco 1760 上配置帧中继 T1

Question

我正在尝试通过帧中继配置数据 T1。

ISP 为我提供了以下信息：

1. IP address
2. Gateway address
3. Encapsulation Frame Relay
4. DLCI 100
5. BZ8 ESF (I think the bz8 was supposed to be b8zs)
6. Time Slot (1 al 24).

到目前为止，我已经配置了以下内容：

interface Serial0/0
  ip address <ip address> 255.255.255.252
  encapsulation frame-relay
  service-module t1 timeslots 1-24
  frame-relay interface-dlci 100

sh 服务模块 s0/0（输出）：

Module type is T1/fractional
    Hardware revision is 0.128, Software revision is 0.2,
    Image checksum is 0x73D70058, Protocol revision is 0.1
Receiver has no alarms.
Framing is **ESF**, Line Code is **B8ZS**, Current clock source is line,
Fraction has **24 timeslots** (64 Kbits/sec each), Net bandwidth is 1536 Kbits/sec.
Last module self-test (done at startup): Passed
Last clearing of alarm counters 00:17:17
    loss of signal        :    0,
    loss of frame         :    0,
    AIS alarm             :    0,
    Remote alarm          :    2, last occurred 00:10:10
    Module access errors  :    0,
Total Data (last 1 15 minute intervals):
    0 Line Code Violations, 0 Path Code Violations
    0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
    0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in current interval (138 seconds elapsed):
    0 Line Code Violations, 0 Path Code Violations
    0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
    0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

sh 输入：

FastEthernet0/0 is up, line protocol is up
  Hardware is PQUICC_FEC, address is 000d.6516.e5aa (bia 000d.6516.e5aa)
  Internet address is 10.0.0.1/24
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, 100BaseTX/FX
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:20:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters never
  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 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog
     0 input packets with dribble condition detected
     191 packets output, 20676 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out

Serial0/0 is up, line protocol is down
  Hardware is PQUICC with Fractional T1 CSU/DSU
  MTU 1500 bytes, BW 1536 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  157, LMI stat recvd 0, LMI upd recvd 0, DTE LMI down
  LMI enq recvd 23, 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 2/0, interface broadcasts 0
  Last input 00:24:51, output 00:00:05, output hang never
  Last clearing of "show interface" counters 00:27:20
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations  0/1/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 1152 kilobits/sec
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     23 packets input, 302 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     1725 input errors, 595 CRC, 1099 frame, 0 overrun, 0 ignored, 30 abort
     246 packets output, 3974 bytes, 0 underruns
     0 output errors, 0 collisions, 48 interface resets
     0 output buffer failures, 0 output buffers swapped out
     4 carrier transitions
     DCD=up  DSR=up  DTR=up  RTS=up  CTS=up

Serial0/0.1 is down, line protocol is down
  Hardware is PQUICC with Fractional T1 CSU/DSU
  MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation FRAME-RELAY
  Last clearing of "show interface" counters never
Serial0/0.100 is down, line protocol is down
  Hardware is PQUICC with Fractional T1 CSU/DSU
  Internet address is <ip address>/30
  MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation FRAME-RELAY
  Last clearing of "show interface" counters never

一切似乎都对我有影响，但显然我错过了一些东西。

我的问题是我被困在接口开启，线路协议关闭，所以 T1 没有上升。

Answer 1

您正在显示远程警报，因此您可能会发现Cisco 的故障排除指南很有用。

假设硬件好...

我会检查你的路由器和 demarc 之间的布线，确保它已插入，没有损坏，没有坏的电缆等。然后我会打电话给 ISP，问他们为什么它不工作。上次我遇到这种情况，是因为 AT&T 搞砸了，给了我错误的 DLCI，花了六个小时的电话会议才弄清楚......

从你的更新中，我看到：

     1725 input errors, 595 CRC, 1099 frame, 0 overrun, 0 ignored, 30 abort

更有经验的人可能有更好的想法，但这绝对让我认为您的布线有问题，或者线路嘈杂，或者电信时钟完全错误。大概是时候召开电话会议了。