问

link status is DOWN

2021-09-18提问

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问题描述：

[LEYI--13F]display logbuffer Logging buffer configuration and contents:enabled Allowed max buffer size : 1024 Actual buffer size : 512 Channel number : 4 , Channel name : logbuffer Dropped messages : 0 Overwritten messages : 0 Current messages : 52

%Sep 17 20:58:48:429 2021 LEYI--13F SHELL/6/SHELL_CMD: -Task=vt0-IPAddr=10.1.16.222-User=admin; Command is reset logbuffer %Sep 17 20:58:50:264 2021 LEYI--13F SHELL/6/SHELL_CMD: -Task=vt0-IPAddr=10.1.16.222-User=admin; Command is sys

%Sep 17 20:58:53:296 2021 LEYI--13F SHELL/6/SHELL_CMD: -Task=vt0-IPAddr=10.1.16.222-User=admin; Command is di cu

%Sep 17 20:59:04:275 2021 LEYI--13F SHELL/6/SHELL_CMD: -Task=vt0-IPAddr=10.1.16.222-User=admin; Command is display interface GigabitEthernet1/0/9

%Sep 17 20:59:29:591 2021 LEYI--13F SHELL/6/SHELL_CMD: -Task=vt0-IPAddr=10.1.16.222-User=admin; Command is display mac-address

%Sep 17 20:59:45:694 2021 LEYI--13F SHELL/6/SHELL_CMD: -Task=vt0-IPAddr=10.1.16.222-User=admin; Command is display logbuffer %Sep 17 21:00:08:061 2021 LEYI--13F SHELL/5/SHELL_LOGOUT: admin logged out from 10.1.16.222.

%Sep 17 21:29:47:188 2021 LEYI--13F SC/6/SC_AAA_LAUNCH: -AAAType=AUTHEN-AAAScheme= local-Service=login-UserName=admin@system; AAA launched.

%Sep 17 21:29:47:189 2021 LEYI--13F SC/6/SC_AAA_SUCCESS: -AAAType=AUTHEN-AAAScheme= local-Service=login-UserName=admin@system; AAA is successful. %Sep 17 21:29:47:190 2021 LEYI--13F SC/6/SC_AAA_LAUNCH: -AAAType=AUTHOR-AAAScheme= local-Service=login-UserName=admin@system; AAA launched.

%Sep 17 21:29:47:190 2021 LEYI--13F SC/6/SC_AAA_SUCCESS: -AAAType=AUTHOR-AAAScheme= local-Service=login-UserName=admin@system; AAA is successful.

%Sep 17 21:29:47:191 2021 LEYI--13F SC/6/SC_AAA_LAUNCH: -AAAType=ACCOUNT-AAAScheme= local-Service=login-UserName=admin@system; AAA launched.

%Sep 17 21:29:47:192 2021 LEYI--13F SC/6/SC_AAA_SUCCESS: -AAAType=ACCOUNT-AAAScheme= local-Service=login-UserName=admin@system; AAA is successful.

%Sep 17 21:29:47:196 2021 LEYI--13F SHELL/5/SHELL_LOGIN: admin logged in from 10.1.16.222.

%Sep 17 21:29:48:598 2021 LEYI--13F SHELL/6/SHELL_CMD: -Task=vt0-IPAddr=10.1.16.222-User=admin; Command is sys

%Sep 17 21:29:54:617 2021 LEYI--13F SHELL/6/SHELL_CMD: -Task=vt0-IPAddr=10.1.16.222-User=admin; Command is display logbuffer

%Sep 17 21:35:57:261 2021 LEYI--13F CFGMAN/5/CFGMAN_EXIT: Exit from configuration mode.

%Sep 17 21:35:57:261 2021 LEYI--13F SHELL/5/SHELL_LOGOUT: admin logged out from 10.1.16.222.

%Sep 17 23:47:00:992 2021 LEYI--13F IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/9 link status is DOWN.

%Sep 17 23:47:10:251 2021 LEYI--13F IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/9 link status is UP.

%Sep 18 00:57:20:994 2021 LEYI--13F IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/9 link status is DOWN.

%Sep 18 00:57:23:488 2021 LEYI--13F IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/9 link status is UP.

%Sep 18 00:57:32:123 2021 LEYI--13F IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/9 link status is DOWN.

%Sep 18 00:57:35:909 2021 LEYI--13F IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/9 link status is UP.

%Sep 18 02:31:49:893 2021 LEYI--13F IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/9 link status is DOWN.

%Sep 18 02:32:01:993 2021 LEYI--13F IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/9 link status is UP.

%Sep 18 02:57:07:287 2021 LEYI--13F IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/9 link status is DOWN.

%Sep 18 02:57:09:716 2021 LEYI--13F IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/9 link status is UP.

%Sep 18 02:59:38:745 2021 LEYI--13F IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/9 link status is DOWN.

%Sep 18 02:59:52:966 2021 LEYI--13F IFNET/3/LINK_UPDOWN: GigabitEthernet1/0/9 link status is UP.

%Sep 18 10:19:10:541 2021 LEYI--13F SC/6/SC_AAA_LAUNCH: -AAAType=AUTHEN-AAAScheme= local-Service=login-UserName=admin@system; AAA launched.

%Sep 18 10:19:10:542 2021 LEYI--13F SC/6/SC_AAA_SUCCESS: -AAAType=AUTHEN-AAAScheme= local-Service=login-UserName=admin@system; AAA is successful.

%Sep 18 10:19:10:542 2021 LEYI--13F SC/6/SC_AAA_LAUNCH: -AAAType=AUTHOR-AAAScheme= local-Service=login-UserName=admin@system; AAA launched.

%Sep 18 10:19:10:543 2021 LEYI--13F SC/6/SC_AAA_SUCCESS: -AAAType=AUTHOR-AAAScheme= local-Service=login-UserName=admin@system; AAA is successful.

%Sep 18 10:19:10:544 2021 LEYI--13F SC/6/SC_AAA_LAUNCH: -AAAType=ACCOUNT-AAAScheme= local-Service=login-UserName=admin@system; AAA launched.

组网及组网描述：

交换机端口换过，对端连接的路由器换过，中间的跳线换过。端口UP DOWN 没有时间规律，每次只有3秒钟

这种现象是由于对端设备端口 UP DOWN造成的，还是由于触发的某种机制H3C实施的端口 UP DOWN？

端口配置：

interface GigabitEthernet1/0/9
qos lr outbound cir 102400
qos lr inbound cir 10240
port-isolate enable group 1

最佳答案

得闲饮水049

得闲饮水049 九段

粉丝：40人关注：6人

如果是光口。

以下是光模块相关信息的查询命令，请悉知：
[H3C]display transceiver manuinfo interface //查看光模块生产厂家信息
[H3C]dis transceiver interface GigabitEthernet 1/0/1 //查看光模块的信息
[H3C]dis transceiver diagnosis interface GigabitEthernet 1/0/1 //查看光口的收发情况
[H3C]dis transceiver alarm interface GigabitEthernet 1/0/1 //查看光口的告警信息
光口不亮，以下是排查要点，请参考：
1、检查光模块是否能被设备读取并识别。
2、检查光路的衰减是否在正常的阈值范围内。
3、检查光纤的收、发是否接反了。
4、检查本端和对端的光模块类型、速率、波长、距离是否一致。
5、检查本端和对端的物理端口的速率、双工模式是否一致。

如果是电口，检查是否有可能存在环路。并检查网线是否有问题。