S7503的log疑问，请指教？
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问题描述：
S7503交换机，查看日志，每隔一段时间总是提示The current switch is no longer the root of Instance 0，请教原因？
当出现该提示的时候，有时候网络就会ping不通，网内设备连接不上。
- 2018-12-29提问
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最佳答案
The current switch is no longer the root of Instance 0 能把这条日志粘贴全么？
看着是stp中根设备发生了变化，导致stp收敛震荡，因此ping不通.
- 2018-12-29回答
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%Dec 29 07:38:10:299 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 07:40:34:297 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 07:42:44:305 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 07:43:28:291 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 07:45:16:298 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 07:45:48:290 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 07:46:12:352 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 07:50:58:347 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 07:58:28:363 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 08:08:48:429 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 08:09:44:437 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 08:11:53:391 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/25 was notified a topology change. %Dec 29 08:17:44:450 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 08:18:44:450 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 08:22:34:436 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 08:35:44:462 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 08:51:44:540 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 08:58:21:407 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/25 was notified a topology change. %Dec 29 09:03:08:703 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:10:48:705 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:11:20:652 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/12 was notified a topology change. %Dec 29 09:11:20:779 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/12 was notified a topology change. %Dec 29 09:15:58:713 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:18:14:748 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:20:36:736 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:22:42:406 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/25 was notified a topology change. %Dec 29 09:30:56:739 2018 梅城-S7503E-1 IFNET/3/PHY_UPDOWN: GigabitEthernet2/0/14 link status is down. %Dec 29 09:30:56:746 2018 梅城-S7503E-1 IFNET/5/LINK_UPDOWN: Line protocol on the interface GigabitEthernet2/0/14 is down. %Dec 29 09:30:59:974 2018 梅城-S7503E-1 IFNET/3/PHY_UPDOWN: GigabitEthernet2/0/14 link status is up. %Dec 29 09:30:59:974 2018 梅城-S7503E-1 IFNET/5/LINK_UPDOWN: Line protocol on the interface GigabitEthernet2/0/14 is up. %Dec 29 09:31:04:775 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:31:06:404 2018 梅城-S7503E-1 IFNET/3/PHY_UPDOWN: GigabitEthernet2/0/14 link status is down. %Dec 29 09:31:06:410 2018 梅城-S7503E-1 IFNET/5/LINK_UPDOWN: Line protocol on the interface GigabitEthernet2/0/14 is down. %Dec 29 09:31:09:406 2018 梅城-S7503E-1 IFNET/3/PHY_UPDOWN: GigabitEthernet2/0/14 link status is up. %Dec 29 09:31:09:407 2018 梅城-S7503E-1 IFNET/5/LINK_UPDOWN: Line protocol on the interface GigabitEthernet2/0/14 is up. %Dec 29 09:31:40:483 2018 梅城-S7503E-1 STP/6/STP_DETECTED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/14 detected a topology change. %Dec 29 09:39:34:837 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:45:38:840 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:47:10:838 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:50:58:864 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:51:48:865 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:53:18:862 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:54:10:862 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:01:23:427 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/25 was notified a topology change. %Dec 29 10:07:29:028 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:09:21:088 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:10:25:308 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/12 was notified a topology change. %Dec 29 10:10:26:893 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/12 was notified a topology change. %Dec 29 10:12:13:195 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:16:51:278 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:23:03:312 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:23:21:312 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:23:37:426 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/25 was notified a topology change. %Dec 29 10:24:19:330 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:26:15:340 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:28:45:338 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:37:04:673 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/12 was notified a topology change. %Dec 29 10:37:04:941 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/12 was notified a topology change. %Dec 29 10:39:49:407 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:41:59:392 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:44:29:392 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:46:27:390 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:54:43:430 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/25 was notified a topology change. %Dec 29 11:03:46:189 2018 梅城-S7503E-1 SHELL/5/SHELL_LOGIN: admin logged in from 43.0.61.195. %Dec 29 11:04:21:151 2018 梅城-S7503E-1 SHELL/6/SHELL_CMD: -Line=vty0-IPAddr=43.0.61.195-User=admin; Command is dis cur
就是根桥发生了变化。 配置指定全网的根桥试试。
%Dec 29 09:47:10:838 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:50:58:864 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:51:48:865 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:53:18:862 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 09:54:10:862 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:01:23:427 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/25 was notified a topology change. %Dec 29 10:07:29:028 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:09:21:088 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:10:25:308 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/12 was notified a topology change. %Dec 29 10:10:26:893 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/12 was notified a topology change. %Dec 29 10:12:13:195 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:16:51:278 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:23:03:312 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:23:21:312 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:23:37:426 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/25 was notified a topology change. %Dec 29 10:24:19:330 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:26:15:340 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:28:45:338 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:37:04:673 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/12 was notified a topology change. %Dec 29 10:37:04:941 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/12 was notified a topology change. %Dec 29 10:39:49:407 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:41:59:392 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:44:29:392 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:46:27:390 2018 梅城-S7503E-1 STP/5/STP_NOT_ROOT: The current switch is no longer the root of Instance 0. %Dec 29 10:54:43:430 2018 梅城-S7503E-1 STP/6/STP_NOTIFIED_TC: -Slot=2; Instance 0's port GigabitEthernet2/0/25 was notified a topology change. %Dec 29 11:03:46:189 2018 梅城-S7503E-1 SHELL/5/SHELL_LOGIN: admin logged in from 43.0.61.195. %Dec 29 11:04:21:151 2018 梅城-S7503E-1 SHELL/6/SHELL_CMD: -Line=vty0-IPAddr=43.0.61.195-User=admin; Command is dis cur
- 2018-12-29回答
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就是根桥发生了变化。 配置指定全网的根桥试试。