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V35接口不通

广域网接口

2022-06-10提问

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zhiliao_iW2puu

zhiliao_iW2puu 零段

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问题描述：

V35协转设备点对点连接后，dis inter brief 命令查看状态，link 和protocol状态up，但是业务不通。切换回老的思科设备业务立马就能恢复，问题可能出在哪里？

最佳答案

国服老六在线背刺

国服老六在线背刺五段

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tcp丢包。需要看你啥样的，如果是时隙对接，华三和思科的时隙不是完全对应的，可以找400要个对应关系表。如果不涉及时隙，看看时钟啊，接地啊，以及华三那边有没有什么信号告警。

比较了一下接口信息，思科和华三看不出有什么不同哦，貌似也没有报错，附接口信息如下： Serial4/1 Current state: UP Line protocol state: UP Description: Bandwidth: 64 kbps Maximum transmission unit: 1500 Hold timer: 10 seconds, retry times: 5 Internet address: 172.20.14.1/30 (Primary) Link layer protocol: PPP LCP: opened, IPCP: opened Port priority: 0 Output queue - Urgent queuing: Size/Length/Discards 0/1024/0 Output queue - Protocol queuing: Size/Length/Discards 0/500/0 Output queue - FIFO queuing: Size/Length/Discards 0/75/0 Last link flapping: 0 hours 38 minutes 59 seconds Last clearing of counters: Never Current system time:2022-06-10 17:38:25 Last time when physical state changed to up:2022-06-10 16:59:26 Last time when physical state changed to down:2022-06-10 14:32:46 Physical layer: synchronous, Virtual baudrate: 64000 bps Interface: DTE Cable type: V35 Clock mode: DTECLK1 Last 300 seconds input rate: 20.25 bytes/sec, 162 bits/sec, 0.54 packets/sec Last 300 seconds output rate: 39.68 bytes/sec, 317 bits/sec, 0.96 packets/sec Input: 228214 packets, 3364327 bytes 0 broadcasts, 0 multicasts 827502599 errors, 0 runts, 0 giants 25226 CRC, 0 align errors, 0 overruns 827477373 aborts, 0 no buffers, 0 frame errors Output: 243722 packets, 3624980 bytes 0 errors, 0 underruns, 0 collisions 0 deferred DCD: UP, DTR: UP, DSR: UP, RTS: UP, CTS: UP MainRouter#show interfaces serial 0/3/1 Serial0/3/1 is up, line protocol is up Hardware is HWIC-Serial Description: Internet address is 172.20.14.1/30 MTU 1500 bytes, BW 2048 Kbit/sec, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, LCP Open Stopped: CDPCP Open: IPCP, loopback not set Keepalive set (10 sec) Restart-Delay is 0 secs CRC checking enabled Last input 00:00:01, output 00:00:07, output hang never Last clearing of "show interface" counters 4y38w Input queue: 0/75/1/0 (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 84424967 packets input, 8184524107 bytes, 0 no buffer Received 0 broadcasts (0 IP multicasts) 1267250 runts, 1 giants, 0 throttles 2587486 input errors, 906066 CRC, 0 frame, 0 overrun, 0 ignored, 414170 abort 86512527 packets output, 8355101375 bytes, 0 underruns 0 output errors, 0 collisions, 55532 interface resets 11 unknown protocol drops 0 output buffer failures, 0 output buffers swapped out 75 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up

zhiliao_iW2puu 发表时间：2022-06-10