V7路由器PPP/HPLC接口自环测试方法

日常网络环境中经常遇到POS接口对接起不来的情况，自环测试是常见的基础排查手段。

#                                                                              

interface Pos1/3/2/1                                                           

 loopback local                                                                 

 link-protocol hdlc                                                             

 timer-hold 0         // timer-hold 0用于不自动发协议报文                                                         

 ip address 2.2.2.2 255.255.255.0                                               

#      

<88x>reset counters interface p1/3/2/1      //ping之前清除接口计数                                   

<88x>                                                                           

<88x>dis int p1/3/2/1                                                           

Pos1/3/2/1                                                                     

Current state: UP                                                              

Line protocol state: UP                                                        

Description: Pos1/3/2/1 Interface                                              

Bandwidth: 155520kbps                                                          

Maximum Transmit Unit: 1500                                                    

Hold timer: 0 seconds                                                          

Internet Address is 2.2.2.2/24 Primary                                         

Link layer protocol: HDLC                                                       

Port priority: 0                                                               

Last clearing of counters: 17:27:04 Wed 06/01/2016                             

Port connector type is No connector                                             

Physical layer is packet over SDH                                              

Port speed type: STM-1                                                         

Loopback is local                                                               

FCS: 32-bit CRC                                                                

Clock source: Slave                                                            

Clock grade: LNC(G.812 SSU-B)                                                   

SPE scrambling: Enable                                                         

BER thresholds:                                                                

    SD: 10e-6    SF: 10e-4                                                     

Regenerator section layer:                                                     

    J0(TX): "SR8800"                                                           

            53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00                    

    J0(RX): "SR8800"                                                           

            53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00                    

    Alarm: None                                                                

    Error: 0 BIP(B1)                                                           

Multiplex section layer:                                                       

    Alarm: None                                                                

    Error: 0 BIP(B2), 0 REI(M1)                                                

Higher order path layer:                                                       

    C2(TX): 0x16    C2(RX): 0x16                                               

    J1(TX): "SR8800"                                                            

            53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00                    

    J1(RX): "SR8800"                                                           

            53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00                    

    Alarm: None                                                                

    Error: 0 BIP(B3), 0 REI(G1)                                                

           0 PJE, 0 NJE                                                         

Port statistic:start time: 2016-06-01 17:27:05                                 

UP time: 0 H 0 M 1 S                                                           

Section: ES        1   SES        1   SEFS        1                             

Line   : ES        0   SES        0   UAS         0   FE-ES        0           

Path1  : ES        1   SES        1   UAS         0   FE-ES        0           

Input speed in last 5 seconds: 0 packets/s, 0 bytes/s                          

Output speed in last 5 seconds: 0 packets/s, 0 bytes/s                         

Input: 0 packets,  0 bytes(good), 0 bytes(all)   //ping之前保证端口无其他计数                              

        0 FCS errors,  0 Aborts,  0 FIFO overflow                              

        0 Runts,  0 Giants                                                     

Output: 0 packets,  0 bytes(good), 0 bytes(all)                                

        0 FIFO underflow,  0 Aborts,  0 Runts                                  

Peak value of input: 0 bytes/sec, at 2016-06-01 17:27:04                       

Peak value of output: 0 bytes/sec, at 2016-06-01 17:27:04  

[88x]ping -a 2.2.2.2 -c 10 -t 0 2.2.2.3  //取同一网段地址ping，而不是ping接口ip                                      

Ping 2.2.2.3 (2.2.2.3) from 2.2.2.2: 56 data bytes, press CTRL_C to break      

Request time out                                                               

Request time out                                                               

Request time out                                                               

Request time out                                                               

Request time out                                                               

Request time out                                                                

Request time out                                                               

Request time out                                                               

Request time out                                                                

Request time out                                                               

--- Ping statistics for 2.2.2.3 ---                                             

10 packet(s) transmitted, 0 packet(s) received, 100.0% packet loss             

[88x]%Jun  1 17:34:52:389 2016 88x PING/6/PING_STATIS_INFO: -MDC=1; Ping statist

ics for 2.2.2.3: 10 packet(s) transmitted, 0 packet(s) received, 100.0% packet l

oss.                                                                           

[88x]                                                                           

[88x]dis int p1/3/2/1                                                          

Pos1/3/2/1                                                                     

Current state: UP                                                              

Line protocol state: UP                                                        

Description: Pos1/3/2/1 Interface                                              

Bandwidth: 155520kbps                                                          

Maximum Transmit Unit: 1500                                                    

Hold timer: 0 seconds                                                          

Internet Address is 2.2.2.2/24 Primary                                         

Link layer protocol: HDLC                                                      

Port priority: 0                                                               

Last clearing of counters: 17:34:15 Wed 06/01/2016                             

Port connector type is No connector                                            

Physical layer is packet over SDH                                              

Port speed type: STM-1                                                         

Loopback is local                                                               

FCS: 32-bit CRC                                                                

Clock source: Slave                                                            

Clock grade: LNC(G.812 SSU-B)                                                   

SPE scrambling: Enable                                                         

BER thresholds:                                                                

    SD: 10e-6    SF: 10e-4                                                      

Regenerator section layer:                                                     

    J0(TX): "SR8800"                                                           

            53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00                     

    J0(RX): "SR8800"                                                           

            53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00                    

    Alarm: None                                                                 

    Error: 0 BIP(B1)                                                           

Multiplex section layer:                                                       

    Alarm: None                                                                

    Error: 0 BIP(B2), 0 REI(M1)                                                

Higher order path layer:                                                       

    C2(TX): 0x16    C2(RX): 0x16                                               

    J1(TX): "SR8800"                                                            

            53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00                    

    J1(RX): "SR8800"                                                           

            53 52 38 38 30 30 00 00 00 00 00 00 00 00 00 00                    

    Alarm: None                                                                

    Error: 0 BIP(B3), 0 REI(G1)                                                

           0 PJE, 0 NJE                                                        

Port statistic:start time: 2016-06-01 17:34:16                                 

UP time: 0 H 0 M 39 S                                                          

Section: ES       39   SES       39   SEFS       39                            

Line   : ES        0   SES        0   UAS         0   FE-ES        0           

Path1  : ES       39   SES       39   UAS        39   FE-ES        0           

Input speed in last 5 seconds: 10 packets/s, 897 bytes/s                       

Output speed in last 5 seconds: 10 packets/s, 897 bytes/s                      

//ping 1个报文，接口计数应该是255个；10个就是2550个。

Input: 2550 packets,  224400 bytes(good), 234974 bytes(all)                    

        0 FCS errors,  0 Aborts,  0 FIFO overflow                              

        0 Runts,  0 Giants                                                     

Output: 2550 packets,  224400 bytes(good), 234974 bytes(all)                   

        0 FIFO underflow,  0 Aborts,  0 Runts                                  

Peak value of input: 897 bytes/sec, at 2016-06-01 17:34:50                     

Peak value of output: 897 bytes/sec, at 2016-06-01 17:34:50