请各位帮忙分析一下：关于广域网口丢包的问题

孤心剑客

在两个广域网口间ping包，有丢包现象，100个大概丢6个左右，丢包之间间隔没固定。\r\n用show ip account 看过，没有发包量很大或者很多的PC机。用show inter s0/0 查看\r\n端口，信息如下，请各位帮忙分析，谢谢！\r\n\r\nSerial0/0 is up, line protocol is up\r\nHardware is DSCC4 Serial\r\nInternet address is X.X.X.2/30\r\nMTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,\r\nreliability 255/255, txload 3/255, rxload 15/255\r\nEncapsulation HDLC, loopback not set\r\nKeepalive set (10 sec)\r\nLast input 00:00:00, output 00:00:00, output hang never\r\nLast clearing of \"show interface\" counters never\r\nInput queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0\r\nQueueing strategy: weighted fair\r\nOutput queue: 0/1000/64/0 (size/max total/threshold/drops)\r\nConversations 0/18/256 (active/max active/max total)\r\nReserved Conversations 0/0 (allocated/max allocated)\r\nAvailable Bandwidth 1536 kilobits/sec\r\n5 minute input rate 127000 bits/sec, 30 packets/sec\r\n5 minute output rate 27000 bits/sec, 21 packets/sec\r\n17859189 packets input, 712828220 bytes, 0 no buffer\r\nReceived 47285 broadcasts, 0 runts, 3 giants, 0 throttles\r\n2440 input errors, 303 CRC, 2135 frame, 0 overrun, 0 ignored, 2 abort\r\n10537514 packets output, 1633197057 bytes, 0 underruns\r\n0 output errors, 0 collisions, 172 interface resets\r\n0 output buffer failures, 0 output buffers swapped out\r\n3 carrier transitions\r\nDCD=up DSR=up DTR=up RTS=up CTS=up

hljdcb

线路质量不好 有误吗\r\n而且端口还出现up down现象

左看又看

可能是底层传输的问题，也有可能是端口质量不好。