AR G3 网口对接不能UP定位方法

发布时间:  2015-04-02 浏览次数:  385 下载次数:  0
问题描述
网口连接后,端口指示灯不亮,物理层或协议层不能UP,或者两层都不能UP。

处理过程
1、更换一根确认为好的网线,重新对接端口。

2、查看网线两端对接设备网口配置(端口速率,是否双工,是否自动协商等)是否一致。

以GE0口为例,在GE0接口两端都执行如下命令,查询AR侧网口配置:

[Huawei-GigabitEthernet0/0/0]display this interface

显示的信息如下所示,如果接口两端的属性一致,则故障已解决;如果接口两端的属性不一致,则继续以下步骤。

GigabitEthernet0/0/0 current state : DOWN              
Line protocol current state : DOWN                     
Description:HUAWEI, AR Series, GigabitEthernet0/0/0 Interface      
Route Port,The Maximum Transmit Unit is 1500           
Internet Address is 192.168.1.29/24                    
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 5489-9875-4a0b              
Last physical up time   : -                            
Last physical down time : 2011-09-28 09:51:56          
Current system time: 2011-09-28 13:52:21               
Port Mode: COMMON COPPER                               
Speed : 1000,  Loopback: NONE                          
Duplex: FULL,  Negotiation: ENABLE                     
Mdi   : AUTO     
Last 300 seconds input rate 0 bits/sec, 0 packets/sec  
Last 300 seconds output rate 0 bits/sec, 0 packets/sec 
Input peak rate 0 bits/sec,Record time: -              
Output peak rate 0 bits/sec,Record time: -             
                 
Input:  0 packets, 0 bytes                             
  Unicast:                  0,  Multicast:                   0       
  Broadcast:                0,  Jumbo:                       0            
  Discard:                  0,  Total Error:                 0        
                 
  CRC:                      0,  Giants:                      0      
  Jabbers:                  0,  Throttles:                   0          
  Runts:                    0,  Alignments:                  0              
  Symbols:                  0,  Ignoreds:                    0            
  Frames:                   0                          
                 
Output:  0 packets, 0 bytes                            
  Unicast:                  0,  Multicast:                   0          
  Broadcast:                0,  Jumbo:                       0          
  Discard:                  0,  Total Error:                 0     
                 
  Collisions:               0,  ExcessiveCollisions:         0         
  Late Collisions:          0,  Deferreds:                   0        
  Buffers Purged:           0                          
                 
    Input bandwidth utilization threshold : 100.00%    
    Output bandwidth utilization threshold: 100.00%    
    Input bandwidth utilization  :    0%               
Output bandwidth utilization :    0%


3、联系相应运营商检测线路。

4、确认与AR网口对接RJ45端口是否为以太网口,如果不是,将网线插入以太网口重试。

注意:
RJ45为通用接口,使用者可以根据需要将PIN脚定义成不同的功能,有些管脚甚至被定义为电源和地。网口连接时一定要确认网线插入的口为以太网口,否则插错接口很容易导致端口损坏。插入网线后,输入以下命令对以太网口连接电缆进行检测。

[Huawei-GigabitEthernet0/0/0]virtual-cable-test

当显示如下信息时,请结合表1和下面信息内容定位出故障的位置。

Warning: The command will stop service for a while, continue [Y/N]?y                         
Sep 28 2011 13:57:54+00:00 Huawei %%01IFPDT/4/VCT(l)[13]:The user choose YES when there is a selection about whether to run VCT.   
[Huawei-GigabitEthernet0/0/0]                          
Sep 28 2011 13:57:57+00:00 Huawei %%01IFPDT/4/IF_STATE(l)[14]:Interface GigabitEthernet0/0/0 has turned into DOWN state.           
[Huawei-GigabitEthernet0/0/0]                          
Sep 28 2011 13:57:57+00:00 Huawei %%01IFNET/4/LINK_STATE(l)[15]:The line protocol IP on the interface GigabitEthernet0/0/0 has enter
ed the DOWN state.
[Huawei-GigabitEthernet0/0/0]                          
Pair A length: 0 meter(s)                              
Pair B length: 0 meter(s)                              
Pair C length: 0 meter(s)                              
Pair D length: 0 meter(s)                              
Pair A state: Ok 
Pair B state: Ok 
Pair C state: Ok 
Pair D state: Ok


表1 virtual-cable-test命令输出信息描述 



说明:
通过如上步骤的排查,可以自动过滤解决大部分的网口不up问题。

根因
  • 网线有问题。
  • 网口配置问题。
  • 运营商线路问题。
  • 对接RJ45端口为非以太网端口。

END