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December 2020

December 2020

10717
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14
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ni-weijian
Beginner

2台交换机 出现环路报错,头疼啊

以前好好的,然后 2台交换机之间一根专线被电信挖断了,现在就出现这个时不时会断的节奏,好无奈
核心上没有出现的报错信息,但2层上有报错
Jul 12 11:48:18: %SPANTREE-2-LOOPGUARD_UNBLOCK: Loop guard unblocking port GigabitEthernet1/0/25 on VLAN0050.
Jul 12 14:42:23: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/25, changed state to down
Jul 12 14:42:24: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/25, changed state to down
Jul 12 14:42:30: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host 192.168.47.195 Port 514 started - reconnection
Jul 12 14:42:35: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host 192.168.8.222 Port 514 started - reconnection
Jul 12 14:43:09: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/25, changed state to up
Jul 12 14:43:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/25, changed state to up
Jul 12 14:43:17: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host 192.168.47.195 Port 514 started - reconnection
Jul 12 14:43:22: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host 192.168.8.222 Port 514 started - reconnection
Jul 12 14:43:56: %SPANTREE-2-LOOPGUARD_BLOCK: Loop guard blocking port GigabitEthernet1/0/25 on VLAN0888.
Jul 12 14:43:57: %SPANTREE-2-LOOPGUARD_BLOCK: Loop guard blocking port GigabitEthernet1/0/25 on VLAN0050.
Jul 12 14:43:58: %SPANTREE-2-LOOPGUARD_BLOCK: Loop guard blocking port GigabitEthernet1/0/25 on VLAN0107.
Jul 12 14:44:36: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/25, changed state to down
Jul 12 14:44:37: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/25, changed state to down
Jul 12 14:44:42: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host 192.168.47.195 Port 514 started - reconnection
Jul 12 14:44:47: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host 192.168.8.222 Port 514 started - reconnection
Jul 12 14:44:49: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/25, changed state to up
Jul 12 14:44:51: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/25, changed state to up
Jul 12 14:44:57: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host 192.168.47.195 Port 514 started - reconnection
Jul 12 14:45:02: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host 192.168.8.222 Port 514 started - reconnection
Jul 12 14:45:20: %SPANTREE-2-LOOPGUARD_BLOCK: Loop guard blocking port GigabitEthernet1/0/25 on VLAN0888.
Jul 12 14:45:21: %SPANTREE-2-LOOPGUARD_BLOCK: Loop guard blocking port GigabitEthernet1/0/25 on VLAN0050.
Jul 12 14:45:23: %SPANTREE-2-LOOPGUARD_UNBLOCK: Loop guard unblocking port GigabitEthernet1/0/25 on VLAN0888.
Jul 12 14:45:24: %SPANTREE-2-LOOPGUARD_UNBLOCK: Loop guard unblocking port GigabitEthernet1/0/25 on VLAN0107.
1 个已接受解答

已接受的解答
Xin Lei
Enthusiast

ni-weijian 发表于 2016-7-29 16:36 back.gif
解决了,,光纤问题

哈哈,当我想回复你换光纤的时候,看到你解决了~~~太好了;因为我都试过这问题

在原帖中查看解决方案

20 条回复20
Xin Lei
Enthusiast

ni-weijian 发表于 2016-7-29 16:36 back.gif
解决了,,光纤问题

哈哈,当我想回复你换光纤的时候,看到你解决了~~~太好了;因为我都试过这问题

在原帖中查看解决方案

ni-weijian
Beginner

:'(:'(:'(:'(:'(
ni-weijian
Beginner

好想直接把guard group关掉,但又怕出事
ni-weijian
Beginner

本帖最后由 ni-weijian 于 2016-7-12 16:03 编辑
对了 2边端口配置如下 2层的
!
interface GigabitEthernet1/0/25
switchport trunk allowed vlan 50,107,111,113,115-118,125,141,142,144,169,244
switchport trunk allowed vlan add 888
switchport mode trunk
speed nonegotiate
udld port
storm-control broadcast level 2.00
storm-control multicast level 2.00
spanning-tree guard loop
ni-weijian
Beginner

三层的
interface GigabitEthernet1/17
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
no ip address
speed nonegotiate
udld port
storm-control broadcast level 2.00
storm-control multicast level 2.00
end
zhoujianjoe
Beginner

图画的挺过瘾的 既然都断了为啥还能自己起来啊你确定25口是断掉的那个?
ni-weijian
Beginner

zhoujianjoe 发表于 2016-7-12 15:51 back.gif
图画的挺过瘾的 既然都断了为啥还能自己起来啊你确定25口是断掉的那个?

是的,确定 肯定
zhoujianjoe
Beginner

ni-weijian 发表于 2016-7-12 16:01 back.gif
是的,确定 肯定

既然断了就近端口你们down掉看看 还报错不
ni-weijian
Beginner

zhoujianjoe 发表于 2016-7-12 16:11 back.gif
既然断了就近端口你们down掉看看 还报错不

3层上面看不到报错信息,2层有 但下面有环路报错,看不懂啊
suzhouxiaoniu
Advocate

你二层不是配置了 guard loop,光纤一旦单向链路,有可能导致环路,所以阻塞此端口,防环,
fortune
VIP Expert

根据报错的端口层层往下面查就能查出来了!
ni-weijian
Beginner

suzhouxiaoniu 发表于 2016-7-12 17:48 back.gif
你二层不是配置了 guard loop,光纤一旦单向链路,有可能导致环路,所以阻塞此端口,防环,

我的光纤是2根的,那如果是这个情况,它过会就自动恢复的。这个是光纤不好????还是电信那光纤问题??能否证明下光纤问题?? 谢谢
ni-weijian
Beginner

vsop5207 发表于 2016-7-12 23:56 back.gif
根据报错的端口层层往下面查就能查出来了!

中间没有了,没有层层概念
木头人
Beginner

我也想知道是怎么回事,求解
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