E1 over SDH,CRC增加

网络工程
2021-07-13 19:11:10

我在 E1 接口上遇到 CRC 问题,在我发现时钟滑动后,我配置了“network-clock-participate wic”和“network-clock-select”。但我认为这不是CRC的原因,当我ping和丢包时,它总是连续10个数据包,CRC计数器相应增加。

PS:PE端没有CRC。提供商已检查 SDH,应该没有错误。

感谢您的任何建议。

添加配置:

CE#sh run | sec troller|clock|0/1/0
network-clock-participate wic 1 
network-clock-select 1 E1 0/1/0
controller E1 0/1/0
 framing NO-CRC4 
 channel-group 1 timeslots 1
interface Serial0/1/0:1
 description WAN to CUP
 ip address 172.16.192.110 255.255.255.252

CE#ping 172.16.192.109 re 1000 
Type escape sequence to abort.
Sending 1000, 100-byte ICMP Echos to 172.16.192.109, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!..........!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 99 percent (990/1000), round-trip min/avg/max = 180/187/232 ms
CE#

CE#ping 172.16.192.109  re 1000 si 1500
Type escape sequence to abort.
Sending 1000, 1500-byte ICMP Echos to 144.217.237.73, timeout is 2 seconds:
!!..........!!!!!!!!

Success rate is 50 percent (10/20), round-trip min/avg/max = 548/551/576 ms


CE#sh controllers e1
E1 0/1/0 is up.
Applique type is Channelized E1 - balanced
No alarms detected.
alarm-trigger is not set
Version info FPGA Rev: 08121917, FPGA Type: PRK1
Framing is NO-CRC4, Line Code is HDB3, Clock Source is Line.
International Bit: 1, National Bits: 11111
Data in current interval (839 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
Total Data (last 24 hours)
0 Line Code Violations, 0 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
1 Errored Secs, 1 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
CE#


CE#sh int s0/1/0:1
Serial0/1/0:1 is up, line protocol is up 
Hardware is DSX1
Description: WAN to CUP
Internet address is 172.16.192.110/30
MTU 1500 bytes, BW 64 Kbit/sec, DLY 20000 usec, 
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, crc 16, loopback not set
Keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:37:09
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
6046 packets input, 437043 bytes, 0 no buffer
Received 218 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles 
123 input errors, 123 CRC, 0 frame, 0 overrun, 0 ignored, 123 abort
6605 packets output, 528735 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
CE#
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