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December 2020

December 2020

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xy411381121
Participant

端口每隔一段时间就就会不停up/down,是端口硬件故障了吗?

本帖最后由 xy411381121 于 2018-9-12 15:04 编辑
为什么交换机的端口在短时间内会反复up/down啊?而且今天这段时间是这几个端口,换个时间段又换成其他端口这样反复up/down,然后短则过几天,长则半个月一个月后,又轮到这个端口反复up/down。
我们这里,基本所有路由器交换机都存在这个现象,N7K直连终端的端口、N2K端口、光交换机4506、接入交换机C3560/C3750、路由器ASR1006上是时隙端口。
以N2K上的一个端口为例:
物理连接情况是:n7k——配线架1——配线架2——N2K——配线架3——配线架4——服务器/PC
网线均为6类成品网线,服务器/PC均关闭了睡眠模式。
2018 Jul 17 05:16:54 PS_N7K_01 %ETHPORT-5-SPEED: Interface Ethernet106/1/35, operational speed changed to 1 Gbps
2018 Jul 17 05:16:54 PS_N7K_01 %ETHPORT-5-IF_DUPLEX: Interface Ethernet106/1/35, operational duplex mode changed to Full
2018 Jul 17 05:16:54 PS_N7K_01 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Receive Flow Control state changed to off
2018 Jul 17 05:16:54 PS_N7K_01 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Transmit Flow Control state changed to on
2018 Jul 17 05:16:54 PS_N7K_01 %ETHPORT-5-IF_UP: Interface Ethernet106/1/35 is up in mode access
2018 Jul 17 05:18:25 PS_N7K_01 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet106/1/35 is down (Link failure)
2018 Jul 17 22:36:08 PS_N7K_01 %EIGRP-5-NBRCHANGE_DUAL: eigrp-600 [4519] (default-base) IP-EIGRP(0) 600: Neighbor 172.26.9.131 (Vlan90) is down: Interface Goodbye received
2018 Jul 17 22:36:12 PS_N7K_01 %EIGRP-5-NBRCHANGE_DUAL: eigrp-600 [4519] (default-base) IP-EIGRP(0) 600: Neighbor 172.26.9.131 (Vlan90) is up: new adjacency
2018 Jul 24 03:42:32 PS_N7K_01 %AUTHPRIV-3-SYSTEM_MSG: pam_aaa:Authentication failed for user admin from 172.26.11.135 - login
2018 Jul 24 05:13:32 PS_N7K_01 %ETHPORT-5-SPEED: Interface Ethernet106/1/35, operational speed changed to 1 Gbps
2018 Jul 24 05:13:32 PS_N7K_01 %ETHPORT-5-IF_DUPLEX: Interface Ethernet106/1/35, operational duplex mode changed to Full
2018 Jul 24 05:13:32 PS_N7K_01 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Receive Flow Control state changed to off
2018 Jul 24 05:13:32 PS_N7K_01 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Transmit Flow Control state changed to on
2018 Jul 24 05:13:32 PS_N7K_01 %ETHPORT-5-IF_UP: Interface Ethernet106/1/35 is up in mode access
2018 Jul 24 05:19:20 PS_N7K_01 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet106/1/35 is down (Link failure)
2018 Jul 31 04:54:47 PS_N7K_01 %ETHPORT-5-SPEED: Interface Ethernet106/1/35, operational speed changed to 1 Gbps
2018 Jul 31 04:54:47 PS_N7K_01 %ETHPORT-5-IF_DUPLEX: Interface Ethernet106/1/35, operational duplex mode changed to Full
2018 Jul 31 04:54:47 PS_N7K_01 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Receive Flow Control state changed to off
2018 Jul 31 04:54:47 PS_N7K_01 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Transmit Flow Control state changed to on
2018 Jul 31 04:54:47 PS_N7K_01 %ETHPORT-5-IF_UP: Interface Ethernet106/1/35 is up in mode access
2018 Jul 31 04:55:30 PS_N7K_01 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet106/1/35 is down (Link failure)
2018 Jul 31 12:27:36 PS_N7K_01 %ETHPORT-5-SPEED: Interface Ethernet106/1/35, operational speed changed to 1 Gbps
2018 Jul 31 12:27:36 PS_N7K_01 %ETHPORT-5-IF_DUPLEX: Interface Ethernet106/1/35, operational duplex mode changed to Full
2018 Jul 31 12:27:36 PS_N7K_01 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Receive Flow Control state changed to off
2018 Jul 31 12:27:36 PS_N7K_01 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Transmit Flow Control state changed to on
2018 Jul 31 12:27:36 PS_N7K_01 %ETHPORT-5-IF_UP: Interface Ethernet106/1/35 is up in mode access
2018 Jul 31 12:30:30 PS_N7K_01 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet106/1/35 is down (Link failure)
2018 Aug 21 10:07:59 PS_N7K_01 %ETHPORT-5-SPEED: Interface Ethernet106/1/35, operational speed changed to 1 Gbps
2018 Aug 21 10:07:59 PS_N7K_01 %ETHPORT-5-IF_DUPLEX: Interface Ethernet106/1/35, operational duplex mode changed to Full
2018 Aug 21 10:07:59 PS_N7K_01 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Receive Flow Control state changed to off
2018 Aug 21 10:07:59 PS_N7K_01 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Transmit Flow Control state changed to on
2018 Aug 21 10:07:59 PS_N7K_01 %ETHPORT-5-IF_UP: Interface Ethernet106/1/35 is up in mode access
2018 Aug 21 10:12:08 PS_N7K_01 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet106/1/35 is down (Link failure)
2018 Aug 28 10:31:50 PS_N7K_01 %ETHPORT-5-SPEED: Interface Ethernet106/1/35, operational speed changed to 1 Gbps
2018 Aug 28 10:31:50 PS_N7K_01 %ETHPORT-5-IF_DUPLEX: Interface Ethernet106/1/35, operational duplex mode changed to Full
2018 Aug 28 10:31:50 PS_N7K_01 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Receive Flow Control state changed to off
2018 Aug 28 10:31:50 PS_N7K_01 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Transmit Flow Control state changed to on
2018 Aug 28 10:31:50 PS_N7K_01 %ETHPORT-5-IF_UP: Interface Ethernet106/1/35 is up in mode access
2018 Aug 28 10:33:03 PS_N7K_01 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet106/1/35 is down (Link failure)
2018 Aug 29 09:32:37 PS_N7K_01 %ETHPORT-5-SPEED: Interface Ethernet106/1/35, operational speed changed to 1 Gbps
2018 Aug 29 09:32:37 PS_N7K_01 %ETHPORT-5-IF_DUPLEX: Interface Ethernet106/1/35, operational duplex mode changed to Full
2018 Aug 29 09:32:37 PS_N7K_01 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Receive Flow Control state changed to off
2018 Aug 29 09:32:37 PS_N7K_01 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet106/1/35, operational Transmit Flow Control state changed to on
2018 Aug 29 09:32:37 PS_N7K_01 %ETHPORT-5-IF_UP: Interface Ethernet106/1/35 is up in mode access
2018 Aug 29 09:36:09 PS_N7K_01 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet106/1/35 is down (Link failure)
请问这应该是网线老化、端口氧化、端口硬件故障这些原因造成的吗?怎么确认具体原因啊?
1 个已接受解答

已接受的解答
cruiseluo
Beginner

如果有TDR的相关仪器,可以测试一下线路的故障点。一般交换机硬件还是有质量保证的,像你们哪里大量存在相同的故障,不会是交换机端口问题。如果很多线已经布放了多年的话,一般是线路氧化(特别是接头),接头接触不良。你可以把流量小的端口降速到100M,这样可以降低串扰,而且100M的双绞线只用其中4根,不像1000M要用8根,这样可以降低端口down的概率。当然,最好的办法就是换线,减少接头数量

在原帖中查看解决方案

9 条回复9
cruiseluo
Beginner

如果有TDR的相关仪器,可以测试一下线路的故障点。一般交换机硬件还是有质量保证的,像你们哪里大量存在相同的故障,不会是交换机端口问题。如果很多线已经布放了多年的话,一般是线路氧化(特别是接头),接头接触不良。你可以把流量小的端口降速到100M,这样可以降低串扰,而且100M的双绞线只用其中4根,不像1000M要用8根,这样可以降低端口down的概率。当然,最好的办法就是换线,减少接头数量

在原帖中查看解决方案

Terence.Jh
Rising star

你7K这个端口 106/1/35是接什么设备的,互联设备链路速率与双工模式协商有问题吧,固定一下全双工+速率试一下
xy411381121
Participant

terence 发表于 2018-9-12 19:58
你7K这个端口 106/1/35是接什么设备的,互联设备链路速率与双工模式协商有问题吧,固定一下全双工+速率试一 ...

106/1/35是N2K上的端口,连接的是服务器,端口都是采用的自协商模式
Terence.Jh
Rising star

哦哦 编号106的2k的1/35 接的什么服务器?协商及速率手工设置一下把
cruiseluo
Beginner

感觉跳线的环节有点多。有时候是施工的质量不高导致的,建议你自己临时做线(按照最好的质量要求做)替换几条经常出故障的线路,观察一个月,对比一下
suzhouxiaoniu
Advocate

这个问题论坛里很多了,可以搜索一下,很多都没有找到根本原因,包括早期的2960经常这个问题,只能排除法,最后就是硬件问题。
xy411381121
Participant

cruiseluo 发表于 2018-9-13 16:54
感觉跳线的环节有点多。有时候是施工的质量不高导致的,建议你自己临时做线(按照最好的质量要求做)替换几 ...

施工质量应该没问题,我现在就是怀疑,要么是网线老化,要的是端口故障,但很多端口都有这个问题,量很大
xy411381121
Participant

suzhouxiaoniu 发表于 2018-9-14 12:10
这个问题论坛里很多了,可以搜索一下,很多都没有找到根本原因,包括早期的2960经常这个问题,只能排除法, ...

我们这里,网络结构其实简单,就是由很多配线架,很多链路都存在这个问题。到底是是网线老化,还是设备端口故障还是配线架端口故障,只能挨个更换测试吗?像交换机端口的话,可以用什么命令看到端口硬件好坏吗?
xy411381121
Participant

cruiseluo 发表于 2018-9-19 16:18
如果有TDR的相关仪器,可以测试一下线路的故障点。一般交换机硬件还是有质量保证的,像你们哪里大量存在相 ...

建网已经差不多5年了,网线氧化这问题,之前发现过,用的除氧化剂喷了一下,但只弄了几条,我们这里管理比较严格,存在断网可能性的操作要做操作都必须提前申请,这种大面积的,可能只有等到明年大修的时候了。谢谢了!
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