发布时间: 2020-02-01 | 浏览次数: 353 | 下载次数: 0 | 作者: felixmq | 文档编号: EKB1100045261
组网描述:客户在局点B出新增一台NE20E通过局点A处的华为S5700交换机与外网联通。
1、在NE20E侧ping网关地址不通
[~GanZhi-RT-NE20E-aaa]ping 113.0.40.81
PING 113.0.40.81: 56 data bytes, press CTRL_C to break
Request time out
Request time out
Request time out
Request time out
Request time out
--- 113.0.40.81 ping statistics ---
5 packet(s) transmitted
0 packet(s) received
100.00% packet loss
2、在ne20E侧查看接口状态为up,收发光均在正常阈值内,line protocol up。
[~GanZhi-RT-NE20E]dis int gi 0/5/3
GigabitEthernet0/5/3 current state : UP (ifindex: 19)
Line protocol current state : UP
Last line protocol up time : 2019-11-26 17:12:15
Link quality grade : GOOD
Description:
Route Port,The Maximum Transmit Unit is 1500
Internet Address is 113.0.40.88/28
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is cc64-a6bb-ee1e
The Vendor PN is SFP-BX-D20D
The Vendor Name is HUAWEI
Port BW: 1G, Transceiver max BW: 1G, Transceiver Mode: SingleMode
WaveLength: 1550nm, Transmission Distance: 20km
Rx Power: -19.06dBm, Warning range: [-24.202, -3.000]dBm
Tx Power: -6.05dBm, Warning range: [-9.500, -3.000]dBm
Loopback: none, full-duplex mode, negotiation: disable, Pause Flowcontrol: Receive Enable and Send Enable
Last physical up time : 2019-11-26 15:54:41
Last physical down time : 2019-11-18 09:48:52
Current system time: 2019-11-26 17:18:45
Statistics last cleared:never
Last 300 seconds input rate: 0 bits/sec, 0 packets/sec
Last 300 seconds output rate: 91 bits/sec, 0 packets/sec
Input peak rate 0 bits/sec, Record time: -
Output peak rate 511 bits/sec, Record time: 2019-11-18 09:55:40
Input: 0 bytes, 0 packets
Output: 92113 bytes, 275 packets
Input:
Unicast: 0 packets, Multicast: 0 packets
Broadcast: 0 packets, JumboOctets: 0 packets
CRC: 0 packets, Symbol: 0 packets
Overrun: 0 packets, InRangeLength: 0 packets
LongPacket: 0 packets, Jabber: 0 packets, Alignment: 0 packets
Fragment: 0 packets, Undersized Frame: 0 packets
RxPause: 0 packets
Output:
Unicast: 0 packets, Multicast: 173 packets
Broadcast: 102 packets, JumboOctets: 0 packets
Lost: 0 packets, Overflow: 0 packets, Underrun: 0 packets
System: 0 packets, Overruns: 0 packets
TxPause: 0 packets
Last 300 seconds input utility rate: 0.00%
Last 300 seconds output utility rate: 0.01%
3、查看ARP无对端设备arp表项
[~GanZhi-RT-NE20E-aaa]dis arp all
IP ADDRESS MAC ADDRESS EXPIRE(M) TYPE INTERFACE VPN-INSTANCE
VLAN/CEVLAN PVC
----------------------------------------------------------------------------------------
10.201.0.1 084f-0ac7-d461 I - GE0/3/0
10.201.0.2 d0c6-5ba5-2fd2 5 D-17 GE0/3/0
113.0.40.88 cc64-a6bb-ee1e I - GE0/5/3
----------------------------------------------------------------------------------------
Total:3 Dynamic:1 Static:0 Interface:2 Remote:0
Redirect:0
4、lldp看不到对端邻居信息
<GanZhi-RT-NE20E>dis lldp nei brief
Local Intf Neighbor Dev Neighbor Intf Exptime (sec)
-------------------------------------------------------------------------------
GigabitEthernet0/3/0 USG6600 GigabitEthernet1/0/0 120
5、去局点A侧查看S5700端口状态
S5700侧通过LLDP看不到邻居信息
[Quidway]dis lldp nei bri
Local Intf Neighbor Dev Neighbor Intf Exptime
GE0/0/48 HEB_CON-S_ZS_HUAWEI-S... GE2/0/11 111
查看接口发现接口为down状态,速率为10M,半双工
查看端口收发光,均在正常阈值内,说明模块与链路无问题
NE20E侧端口自动协商为关闭状态,S5700交换机侧端口自动协商为开启状态,导致此问题
在S5700侧关闭自动协商功能
interface GigabitEthernet0/1/1
undo negotiation auto
端口状态变为UP,可以lldp可以看到邻居设备信息
[Quidway-GigabitEthernet0/1/1]dis lldp nei brief
Local Intf Neighbor Dev Neighbor Intf Exptime
GE0/0/48 HEB_CON-S_ZS_HUAWEI-S... GE2/0/11 102
GE0/1/1 GanZhi-RT-NE20E GE0/5/3 101
局点B侧NE20E可以ping通网关。