FAQ-AR1200百兆口与运营商对接PPPoE,测试带宽为何达不到100M速率。

发布时间:  2017-02-04 浏览次数:  137 下载次数:  0
问题描述
AR1200使用了100M口对接运营商的PPPoE拨号宽带,在设备上测试下载速率无法达到100M,最大只能达到稳定最高的下载速率11.6MB/S左右。
解决方案

在内网测试下载时,查看到设备入接口报文的最大速率已达到99.98%,几乎已达到接口带宽的阈值:

<Huawei>display interface ethernet0/0/4
Ethernet0/0/4 current state : UP
Line protocol current state : DOWN
Description:HUAWEI, AR Series, Ethernet0/0/4 Interface
Route Port,The Maximum Transmit Unit is 1500
Internet protocol processing : disabled
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 845b-12a1-fbcf
Last physical up time   : 2016-12-29 15:59:18 UTC+08:00
Last physical down time : 2016-12-29 15:59:14 UTC+08:00
Current system time: 2016-12-30 16:55:55+08:00
Port Mode: COMMON COPPER
Speed :  100,  Loopback: NONE
Duplex: FULL,  Negotiation: ENABLE
Mdi   : AUTO,  Clock   : -
Last 300 seconds input rate 99874912 bits/sec, 8623 packets/sec
Last 300 seconds output rate 2558752 bits/sec, 4850 packets/sec
Input peak rate 99941888 bits/sec,Record time: 2016-12-29 15:32:48
Output peak rate 13286296 bits/sec,Record time: 2016-12-15 19:32:34

Input:  193304622 packets, 210785963530 bytes
  Unicast:          192984905,  Multicast:               55981
  Broadcast:           263736,  Jumbo:                       0
  Discard:                  0,  Total Error:                 0

  CRC:                      0,  Giants:                      0
  Jabbers:                  0,  Throttles:                   0
  Runts:                    0,  Symbols:                     0
  Ignoreds:                 0,  Frames:                      0

Output:  157829635 packets, 94755595104 bytes
  Unicast:          157829583,  Multicast:                   0
  Broadcast:               52,  Jumbo:                       0
  Discard:                  0,  Total Error:                 0

  Collisions:               0,  ExcessiveCollisions:         0
  Late Collisions:          0,  Deferreds:                   0

    Input bandwidth utilization threshold : 100.00%
    Output bandwidth utilization threshold: 100.00%
    Input bandwidth utilization  : 99.98%
    Output bandwidth utilization : 2.76%

说明接口的最大速率几乎是能达到百兆带宽的,但PPPoE上行的时候,PPP报文头等会占用部分带宽,因此测试下载的时候,客户端上接收的数据是达不到百兆的极限速度的。

END