单位有一台MSR830路由,下面链接3台H3C的48口交换机,有三个GigabitEthernet口,其中一个端口不定期会断网,数据不交换,端口灯不闪烁,把这个端口的网线拔掉在插上去,网络恢复正常!求大神指导,下面附日志!
另外跪求NTP服务器怎么设置!时间老是不对!
Jan 7 16:55:27:695 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/3 link status is UP. |
Jan 7 16:54:57:729 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/3 link status is DOWN. |
Jan 6 17:21:30:698 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/3 link status is UP. |
Jan 6 17:20:55:720 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/3 link status is DOWN. |
Jan 6 06:43:39:609 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/1 link status is UP. |
Jan 6 06:43:34:612 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/1 link status is DOWN. |
Jan 6 06:43:19:621 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/1 link status is UP. |
Jan 6 06:41:59:671 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/1 link status is DOWN. |
Jan 6 06:41:34:687 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/1 link status is UP. |
Jan 6 06:41:29:690 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/1 link status is DOWN. |
Jan 6 06:41:14:699 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/1 link status is UP. |
Jan 6 06:41:09:703 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/1 link status is DOWN. |
Jan 6 06:41:04:706 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/1 link status is UP. |
Jan 6 06:17:20:595 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/1 link status is DOWN. |
Jan 6 06:15:35:661 2013 | IFNET | Error | LINK_UPDOWN | GigabitEthernet0/1 link status is UP. |
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最佳答案
您好,请知:
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换个跳线试试吗?下行用的是S1024路由,应该是防环路的!
检查接口网线是否有问题,ntp使用外网ntp服务器
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不能使用外网IP地址,保存后自动跳到手动设置!
不能使用外网IP地址,保存后自动跳到手动设置!
MSR 830版本:R2516P22
MSR830配置NTP时钟同步时报错:
[MSR830]ntp-service unicast-server ***.***
NTP: Unknown host.
1.设备支持通过NTP服务器的主机名字设置NTP服务器
ntp-service unicast-server [ vpn-instance vpn-instance-name ] { ip-address | server-name } [ authentication-keyid keyid | priority | source-interface interface-type interface-number | version number ] *
2.命令报错的原因是主机名无法解析
3.可以通过2种方式解析主机名:
方法1:ip host设置主机名映射,该方法需要手动指定域名和IP的映射关系
ip host hostname ip-address
方法:指定dns服务器,并开启设备dns解析功能,针对域名进行动态解析
dns server ip-address
dns resolve
客户希望使用域名的方式配置NTP服务器,故选用方法2进行域名解析。
[MSR830]dns resolve
[MSR830]dns server 114.114.114.114
[MSR830]ntp unicast-server ***.***
Trying DNS resolve, press CTRL_C to break
Trying DNS server (114.114.114.114)
[MSR830]display current-configuration | in ntp
ntp-service unicast-server 52.163.118.68
注意:设备会自动将域名解析成IP地址,并配置成NTP服务器的地址。
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[H3C]display ntp-service status Clock status: unsynchronized Clock stratum: 16 Reference clock ID: none Nominal frequency: 100.0000 Hz Actual frequency: 100.0000 Hz Clock precision: 2^18 Clock offset: 0.0000 ms Root delay: 0.00 ms Root dispersion: 0.00 ms Peer dispersion: 0.00 ms Reference time: 00:00:00.000 UTC Jan 1 1900(00000000.00000000) [H3C]
[H3C]display ntp-service status Clock status: unsynchronized Clock stratum: 16 Reference clock ID: none Nominal frequency: 100.0000 Hz Actual frequency: 100.0000 Hz Clock precision: 2^18 Clock offset: 0.0000 ms Root delay: 0.00 ms Root dispersion: 0.00 ms Peer dispersion: 0.00 ms Reference time: 00:00:00.000 UTC Jan 1 1900(00000000.00000000) [H3C]
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换个跳线试试吗?下行用的是S1024路由,应该是防环路的!