请高手帮忙解答：LS-5500-28C-SI Y* 的三层交换机，vlan出现偶尔断线和较大延迟
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问题描述：
vlan 1内的电脑与设备能正常，但vlan 6 和 vlan 7内的电脑和设备有偶尔断线和较大延迟，本vlan的电脑和设备ping vlan 的IP 6.251/7.251都会有此问题，该两个vlan内的电脑和设备之间相互ping也是这种情况。DHCP分配IP是正常的。
下面是路由信息：
Destination/Mask Proto Pre Cost NextHop Interface
0.0.0.0/0 Static 60 0 192.168.1.6 Vlan1
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
192.168.1.0/24 Direct 0 0 192.168.1.251 Vlan1
192.168.1.251/32 Direct 0 0 127.0.0.1 InLoop0
192.168.6.0/24 Direct 0 0 192.168.6.251 Vlan6
192.168.6.251/32 Direct 0 0 127.0.0.1 InLoop0
192.168.7.0/24 Direct 0 0 192.168.7.251 Vlan7
192.168.7.251/32 Direct 0 0 127.0.0.1 InLoop0
组网及组网描述：
公司的三层交换机出现奇怪的问题，请高手帮忙解答下：LS-5500-28C-SI Y* 的三层交换机，实现功能的大概如下： 划分为三个VLAN(vlan 1,vlan 6,vlan 7)：网段分别是192.168.1.0/24, 192.168.6.0/24, 192.168.7.0/24,其VLAN IP分别是192.168.1.251, 192.168.6.251, 192.168.7.251 三个
测试过的操作：
1、删除vlan 6 /vlan 7后重建，故障依旧
2、清除过路由信息后， 故障依旧
现没有该设备的备用，所以没办法换一个测试，不知是否是H3C的硬件问题，请高手们帮忙解答下疑惑，谢谢！
配置信息如下：
******************************************************************************
* Copyright (c) 2004-2010 Hangzhou H3C Tech. Co., Ltd. All rights reserved. *
* Without the owner's prior written consent, *
* no decompiling or reverse-engineering shall be allowed. *
******************************************************************************
Login authentication
Password:
<H3Cs5500>dis cu
#
version 5.20, Release 2202P19
#
sysname H3Cs5500
#
dhcp relay server-group 1 ip 192.168.1.222
#
domain default enable system
#
telnet server enable
#
undo ip ttl-expires
#
vlan 1
#
vlan 6 to 7
#
radius scheme system
server-type extended
primary authentication 127.0.0.1 1645
primary accounting 127.0.0.1 1646
user-name-format without-domain
#
domain system
access-limit disable
state active
idle-cut disable
self-service-url disable
#
interface Bridge-Aggregation1
description 23+24=2000speed
port link-type trunk
port trunk permit vlan all
#
interface NULL0
#
interface Vlan-interface1
ip address 192.168.1.251 255.255.255.0
dhcp select relay
dhcp relay server-select 1
#
interface Vlan-interface6
ip address 192.168.6.251 255.255.255.0
dhcp select relay
dhcp relay server-select 1
#
interface Vlan-interface7
ip address 192.168.7.251 255.255.255.0
dhcp select relay
dhcp relay server-select 1
#
interface GigabitEthernet1/0/1
#
interface GigabitEthernet1/0/2
#
interface GigabitEthernet1/0/3
#
interface GigabitEthernet1/0/4
#
interface GigabitEthernet1/0/5
#
interface GigabitEthernet1/0/6
#
interface GigabitEthernet1/0/7
#
interface GigabitEthernet1/0/8
#
interface GigabitEthernet1/0/9
#
interface GigabitEthernet1/0/10
#
interface GigabitEthernet1/0/11
#
interface GigabitEthernet1/0/12
#
interface GigabitEthernet1/0/13
#
interface GigabitEthernet1/0/14
#
interface GigabitEthernet1/0/15
#
interface GigabitEthernet1/0/16
#
interface GigabitEthernet1/0/17
#
interface GigabitEthernet1/0/18
#
interface GigabitEthernet1/0/19
port access vlan 7
#
interface GigabitEthernet1/0/20
port access vlan 7
#
interface GigabitEthernet1/0/21
port access vlan 6
#
interface GigabitEthernet1/0/22
port link-type trunk
port trunk permit vlan all
#
interface GigabitEthernet1/0/23
port link-type trunk
port trunk permit vlan all
speed 1000
duplex full
port link-aggregation group 1
#
interface GigabitEthernet1/0/24
port link-type trunk
port trunk permit vlan all
speed 1000
duplex full
port link-aggregation group 1
#
interface GigabitEthernet1/0/25
shutdown
#
interface GigabitEthernet1/0/26
shutdown
#
interface GigabitEthernet1/0/27
shutdown
#
interface GigabitEthernet1/0/28
shutdown
#
ip route-static 0.0.0.0 0.0.0.0 192.168.1.6
#
dhcp enable
#
return
<H3Cs5500>
- 2020-12-23提问
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最佳答案
回答上面朋友 看沃昵称干啥 ：
我测试前已把vlan6 和vlan 7的网线全拔了，并把他们接到了vlan 1内，现在vlan 1内是正常的，交换机和路由器都有重启过，可以排除vlan 6 和vlan 7中有环路的情况。
以下是我在vlan7内电脑上做的ping测试，故障如图
回上面的朋友 zhxiaoq ,DHCP是另一台服务器
日志如下，请麻烦看下是否有问题，谢谢！
<H3Cs5500>dis 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 : 87
%Apr 26 12:00:04:942 2000 H3Cs5500 IC/6/SYS_RESTART:
System restarted --
H3C Comware Software
%Apr 26 12:00:22:395 2000 H3Cs5500 HTTPD/4/Log:Start HTTP server.
%Apr 26 12:00:32:705 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/7: link status is UP
%Apr 26 12:00:32:716 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
Vlan-interface1: link status is UP
%Apr 26 12:00:32:716 2000 H3Cs5500 IFNET/4/UPDOWN:
Line protocol on the interface Vlan-interface1 is UP
%Apr 26 12:00:32:837 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/8: link status is UP
%Apr 26 12:00:33:93 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/22: link status is UP
%Apr 26 12:00:33:115 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
Vlan-interface6: link status is UP
%Apr 26 12:00:33:116 2000 H3Cs5500 IFNET/4/UPDOWN:
Line protocol on the interface Vlan-interface6 is UP
%Apr 26 12:00:33:116 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
Vlan-interface7: link status is UP
%Apr 26 12:00:33:116 2000 H3Cs5500 IFNET/4/UPDOWN:
Line protocol on the interface Vlan-interface7 is UP
%Apr 26 12:00:33:497 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/1: link status is UP
%Apr 26 12:00:33:534 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/3: link status is UP
%Apr 26 12:00:33:582 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/5: link status is UP
%Apr 26 12:00:33:627 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/10: link status is UP
%Apr 26 12:00:33:668 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/13: link status is UP
%Apr 26 12:00:33:712 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/15: link status is UP
%Apr 26 12:00:33:752 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/16: link status is UP
%Apr 26 12:00:33:857 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/2: link status is UP
%Apr 26 12:00:33:895 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/6: link status is UP
%Apr 26 12:00:33:937 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/9: link status is UP
%Apr 26 12:00:33:981 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/11: link status is UP
%Apr 26 12:00:34:21 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/12: link status is UP
%Apr 26 12:00:34:63 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/14: link status is UP
%Apr 26 12:00:34:110 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/17: link status is UP
%Apr 26 12:00:34:194 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/19: link status is UP
%Apr 26 12:01:02:905 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/4: link status is UP
%Apr 26 12:03:14:936 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168
%Apr 26 12:03:22:400 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis cur int
%Apr 26 12:04:04:21 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/4: link status is DOWN
%Apr 26 12:05:03:885 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/18: link status is UP
%Apr 26 12:10:42:309 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Created new neighbor, chassis ID: 9883-890f-ca81, port ID: 9883-890f-ca81.
%Apr 26 12:10:42:310 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Created new neighbor, chassis ID: f875-a473-a150, port ID: f875-a473-a150.
%Apr 26 12:13:37:161 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/9 (IfIndex 9437192):Created new neighbor, chassis ID: f0de-f157-6358, port ID: f0de-f157-6358.
%Apr 26 12:13:43:189 2000 H3Cs5500 HWCM/4/EXIT: exit from configure mode
%Apr 26 12:13:43:189 2000 H3Cs5500 SHELL/4/LOGOUT: VTY logout from 192.168.1.168
%Apr 26 13:28:01:17 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/19: link status is DOWN
%Apr 26 13:28:15:677 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/19: link status is UP
%Apr 26 17:21:56:943 2000 H3Cs5500 LLDP/2/DELREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Deleted neighbor, chassis ID: 9883-890f-ca81, port ID: 9883-890f-ca81.
%Apr 26 17:22:41:684 2000 H3Cs5500 LLDP/2/DELREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Deleted neighbor, chassis ID: f875-a473-a150, port ID: f875-a473-a150.
%Apr 26 18:28:40:752 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/3 (IfIndex 9437186):Created new neighbor, chassis ID: 98fa-9b40-38de, port ID: 98fa-9b40-38de.
%Apr 26 19:36:45:570 2000 H3Cs5500 LLDP/2/DELREM:Port GigabitEthernet1/0/3 (IfIndex 9437186):Deleted neighbor, chassis ID: 98fa-9b40-38de, port ID: 98fa-9b40-38de.
%Apr 27 07:44:37:653 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Created new neighbor, chassis ID: 9883-890f-ca81, port ID: 9883-890f-ca81.
%Apr 27 07:48:18:18 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Created new neighbor, chassis ID: f875-a473-a150, port ID: f875-a473-a150.
%Apr 27 07:48:59:551 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/3 (IfIndex 9437186):Created new neighbor, chassis ID: 98fa-9b40-38de, port ID: 98fa-9b40-38de.
%Apr 27 09:03:08:408 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168
%Apr 27 09:03:28:323 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.1.251 192.168.7.251
%Apr 27 09:03:55:132 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.7.251 192.168.6.251
%Apr 27 09:04:33:463 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.7.251 192.168.7.47
%Apr 27 09:05:09:721 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.7.47 192.168.7.251
%Apr 27 09:41:42:910 2000 H3Cs5500 HWCM/4/EXIT: exit from configure mode
%Apr 27 09:41:42:911 2000 H3Cs5500 SHELL/4/LOGOUT: VTY logout from 192.168.1.168
%Apr 27 09:43:18:245 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/20: link status is UP
%Apr 27 09:45:53:549 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/20: link status is DOWN
%Apr 27 09:45:57:770 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/20: link status is UP
%Apr 27 09:47:29:540 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168
%Apr 27 09:47:57:75 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.7.251 192.168.7.19
%Apr 27 09:49:51:276 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/19: link status is DOWN
%Apr 27 09:59:30:499 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/20: link status is DOWN
%Apr 27 09:59:32:937 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/20: link status is UP
%Apr 27 09:59:50:694 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/20: link status is DOWN
%Apr 27 09:59:53:784 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/20: link status is UP
%Apr 27 10:01:21:756 2000 H3Cs5500 HWCM/4/EXIT: exit from configure mode
%Apr 27 10:01:21:756 2000 H3Cs5500 SHELL/4/LOGOUT: VTY logout from 192.168.1.168
%Apr 27 10:06:20:867 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/20: link status is DOWN
%Apr 27 10:06:24:789 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/4: link status is UP
%Apr 27 10:10:16:632 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/4: link status is DOWN
%Apr 27 10:10:24:311 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/20: link status is UP
%Apr 27 10:53:28:231 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/19: link status is UP
%Apr 27 11:06:03:25 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168
%Apr 27 11:07:24:956 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis saved-configuration
%Apr 27 11:07:39:568 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis cu
%Apr 27 11:08:26:111 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis brief int
%Apr 27 11:10:47:868 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis ip routing-table
%Apr 27 11:21:06:349 2000 H3Cs5500 HWCM/4/EXIT: exit from configure mode
%Apr 27 11:21:06:350 2000 H3Cs5500 SHELL/4/LOGOUT: VTY logout from 192.168.1.168
%Apr 27 13:29:46:466 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/20: link status is DOWN
%Apr 27 13:29:49:808 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/20: link status is UP
%Apr 27 13:29:55:276 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/20: link status is DOWN
%Apr 27 13:30:00:106 2000 H3Cs5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/4: link status is UP
%Apr 27 13:37:06:712 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168
%Apr 27 13:37:13:425 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis log
%Apr 27 13:38:16:488 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis log summary
%Apr 27 13:38:29:143 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis log
%Apr 27 13:41:42:330 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis log summary
%Apr 27 13:43:07:744 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis logbuffer
%Apr 27 13:45:58:41 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:display trapbuffer
<H3Cs5500>
- 2020-12-23回答
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回上面的朋友 zhxiaoq ,DHCP是另一台服务器 日志如下，请麻烦看下是否有问题，谢谢！ <H3Cs5500>dis 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 : 87 %Apr 26 12:00:04:942 2000 H3Cs5500 IC/6/SYS_RESTART: System restarted -- H3C Comware Software %Apr 26 12:00:22:395 2000 H3Cs5500 HTTPD/4/Log:Start HTTP server. %Apr 26 12:00:32:705 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/7: link status is UP %Apr 26 12:00:32:716 2000 H3Cs5500 IFNET/4/LINK UPDOWN: Vlan-interface1: link status is UP %Apr 26 12:00:32:716 2000 H3Cs5500 IFNET/4/UPDOWN: Line protocol on the interface Vlan-interface1 is UP %Apr 26 12:00:32:837 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/8: link status is UP %Apr 26 12:00:33:93 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/22: link status is UP %Apr 26 12:00:33:115 2000 H3Cs5500 IFNET/4/LINK UPDOWN: Vlan-interface6: link status is UP %Apr 26 12:00:33:116 2000 H3Cs5500 IFNET/4/UPDOWN: Line protocol on the interface Vlan-interface6 is UP %Apr 26 12:00:33:116 2000 H3Cs5500 IFNET/4/LINK UPDOWN: Vlan-interface7: link status is UP %Apr 26 12:00:33:116 2000 H3Cs5500 IFNET/4/UPDOWN: Line protocol on the interface Vlan-interface7 is UP %Apr 26 12:00:33:497 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/1: link status is UP %Apr 26 12:00:33:534 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/3: link status is UP %Apr 26 12:00:33:582 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/5: link status is UP %Apr 26 12:00:33:627 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/10: link status is UP %Apr 26 12:00:33:668 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/13: link status is UP %Apr 26 12:00:33:712 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/15: link status is UP %Apr 26 12:00:33:752 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/16: link status is UP %Apr 26 12:00:33:857 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/2: link status is UP %Apr 26 12:00:33:895 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/6: link status is UP %Apr 26 12:00:33:937 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/9: link status is UP %Apr 26 12:00:33:981 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/11: link status is UP %Apr 26 12:00:34:21 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/12: link status is UP %Apr 26 12:00:34:63 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/14: link status is UP %Apr 26 12:00:34:110 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/17: link status is UP %Apr 26 12:00:34:194 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/19: link status is UP %Apr 26 12:01:02:905 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/4: link status is UP %Apr 26 12:03:14:936 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168 %Apr 26 12:03:22:400 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis cur int %Apr 26 12:04:04:21 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/4: link status is DOWN %Apr 26 12:05:03:885 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/18: link status is UP %Apr 26 12:10:42:309 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Created new neighbor, chassis ID: 9883-890f-ca81, port ID: 9883-890f-ca81. %Apr 26 12:10:42:310 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Created new neighbor, chassis ID: f875-a473-a150, port ID: f875-a473-a150. %Apr 26 12:13:37:161 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/9 (IfIndex 9437192):Created new neighbor, chassis ID: f0de-f157-6358, port ID: f0de-f157-6358. %Apr 26 12:13:43:189 2000 H3Cs5500 HWCM/4/EXIT: exit from configure mode %Apr 26 12:13:43:189 2000 H3Cs5500 SHELL/4/LOGOUT: VTY logout from 192.168.1.168 %Apr 26 13:28:01:17 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/19: link status is DOWN %Apr 26 13:28:15:677 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/19: link status is UP %Apr 26 17:21:56:943 2000 H3Cs5500 LLDP/2/DELREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Deleted neighbor, chassis ID: 9883-890f-ca81, port ID: 9883-890f-ca81. %Apr 26 17:22:41:684 2000 H3Cs5500 LLDP/2/DELREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Deleted neighbor, chassis ID: f875-a473-a150, port ID: f875-a473-a150. %Apr 26 18:28:40:752 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/3 (IfIndex 9437186):Created new neighbor, chassis ID: 98fa-9b40-38de, port ID: 98fa-9b40-38de. %Apr 26 19:36:45:570 2000 H3Cs5500 LLDP/2/DELREM:Port GigabitEthernet1/0/3 (IfIndex 9437186):Deleted neighbor, chassis ID: 98fa-9b40-38de, port ID: 98fa-9b40-38de. %Apr 27 07:44:37:653 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Created new neighbor, chassis ID: 9883-890f-ca81, port ID: 9883-890f-ca81. %Apr 27 07:48:18:18 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Created new neighbor, chassis ID: f875-a473-a150, port ID: f875-a473-a150. %Apr 27 07:48:59:551 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/3 (IfIndex 9437186):Created new neighbor, chassis ID: 98fa-9b40-38de, port ID: 98fa-9b40-38de. %Apr 27 09:03:08:408 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168 %Apr 27 09:03:28:323 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.1.251 192.168.7.251 %Apr 27 09:03:55:132 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.7.251 192.168.6.251 %Apr 27 09:04:33:463 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.7.251 192.168.7.47 %Apr 27 09:05:09:721 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.7.47 192.168.7.251 %Apr 27 09:41:42:910 2000 H3Cs5500 HWCM/4/EXIT: exit from configure mode %Apr 27 09:41:42:911 2000 H3Cs5500 SHELL/4/LOGOUT: VTY logout from 192.168.1.168 %Apr 27 09:43:18:245 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is UP %Apr 27 09:45:53:549 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is DOWN %Apr 27 09:45:57:770 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is UP %Apr 27 09:47:29:540 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168 %Apr 27 09:47:57:75 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.7.251 192.168.7.19 %Apr 27 09:49:51:276 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/19: link status is DOWN %Apr 27 09:59:30:499 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is DOWN %Apr 27 09:59:32:937 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is UP %Apr 27 09:59:50:694 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is DOWN %Apr 27 09:59:53:784 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is UP %Apr 27 10:01:21:756 2000 H3Cs5500 HWCM/4/EXIT: exit from configure mode %Apr 27 10:01:21:756 2000 H3Cs5500 SHELL/4/LOGOUT: VTY logout from 192.168.1.168 %Apr 27 10:06:20:867 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is DOWN %Apr 27 10:06:24:789 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/4: link status is UP %Apr 27 10:10:16:632 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/4: link status is DOWN %Apr 27 10:10:24:311 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is UP %Apr 27 10:53:28:231 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/19: link status is UP %Apr 27 11:06:03:25 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168 %Apr 27 11:07:24:956 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis saved-configuration %Apr 27 11:07:39:568 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis cu %Apr 27 11:08:26:111 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis brief int %Apr 27 11:10:47:868 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis ip routing-table %Apr 27 11:21:06:349 2000 H3Cs5500 HWCM/4/EXIT: exit from configure mode %Apr 27 11:21:06:350 2000 H3Cs5500 SHELL/4/LOGOUT: VTY logout from 192.168.1.168 %Apr 27 13:29:46:466 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is DOWN %Apr 27 13:29:49:808 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is UP %Apr 27 13:29:55:276 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is DOWN %Apr 27 13:30:00:106 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/4: link status is UP %Apr 27 13:37:06:712 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168 %Apr 27 13:37:13:425 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis log %Apr 27 13:38:16:488 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis log summary %Apr 27 13:38:29:143 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis log %Apr 27 13:41:42:330 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis log summary %Apr 27 13:43:07:744 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis logbuffer %Apr 27 13:45:58:41 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:display trapbuffer <H3Cs5500>
回上面的朋友 zhxiaoq ,DHCP是另一台服务器 日志如下，请麻烦看下是否有问题，谢谢！ <H3Cs5500>dis 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 : 87 %Apr 26 12:00:04:942 2000 H3Cs5500 IC/6/SYS_RESTART: System restarted -- H3C Comware Software %Apr 26 12:00:22:395 2000 H3Cs5500 HTTPD/4/Log:Start HTTP server. %Apr 26 12:00:32:705 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/7: link status is UP %Apr 26 12:00:32:716 2000 H3Cs5500 IFNET/4/LINK UPDOWN: Vlan-interface1: link status is UP %Apr 26 12:00:32:716 2000 H3Cs5500 IFNET/4/UPDOWN: Line protocol on the interface Vlan-interface1 is UP %Apr 26 12:00:32:837 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/8: link status is UP %Apr 26 12:00:33:93 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/22: link status is UP %Apr 26 12:00:33:115 2000 H3Cs5500 IFNET/4/LINK UPDOWN: Vlan-interface6: link status is UP %Apr 26 12:00:33:116 2000 H3Cs5500 IFNET/4/UPDOWN: Line protocol on the interface Vlan-interface6 is UP %Apr 26 12:00:33:116 2000 H3Cs5500 IFNET/4/LINK UPDOWN: Vlan-interface7: link status is UP %Apr 26 12:00:33:116 2000 H3Cs5500 IFNET/4/UPDOWN: Line protocol on the interface Vlan-interface7 is UP %Apr 26 12:00:33:497 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/1: link status is UP %Apr 26 12:00:33:534 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/3: link status is UP %Apr 26 12:00:33:582 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/5: link status is UP %Apr 26 12:00:33:627 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/10: link status is UP %Apr 26 12:00:33:668 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/13: link status is UP %Apr 26 12:00:33:712 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/15: link status is UP %Apr 26 12:00:33:752 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/16: link status is UP %Apr 26 12:00:33:857 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/2: link status is UP %Apr 26 12:00:33:895 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/6: link status is UP %Apr 26 12:00:33:937 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/9: link status is UP %Apr 26 12:00:33:981 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/11: link status is UP %Apr 26 12:00:34:21 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/12: link status is UP %Apr 26 12:00:34:63 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/14: link status is UP %Apr 26 12:00:34:110 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/17: link status is UP %Apr 26 12:00:34:194 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/19: link status is UP %Apr 26 12:01:02:905 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/4: link status is UP %Apr 26 12:03:14:936 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168 %Apr 26 12:03:22:400 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis cur int %Apr 26 12:04:04:21 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/4: link status is DOWN %Apr 26 12:05:03:885 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/18: link status is UP %Apr 26 12:10:42:309 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Created new neighbor, chassis ID: 9883-890f-ca81, port ID: 9883-890f-ca81. %Apr 26 12:10:42:310 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Created new neighbor, chassis ID: f875-a473-a150, port ID: f875-a473-a150. %Apr 26 12:13:37:161 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/9 (IfIndex 9437192):Created new neighbor, chassis ID: f0de-f157-6358, port ID: f0de-f157-6358. %Apr 26 12:13:43:189 2000 H3Cs5500 HWCM/4/EXIT: exit from configure mode %Apr 26 12:13:43:189 2000 H3Cs5500 SHELL/4/LOGOUT: VTY logout from 192.168.1.168 %Apr 26 13:28:01:17 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/19: link status is DOWN %Apr 26 13:28:15:677 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/19: link status is UP %Apr 26 17:21:56:943 2000 H3Cs5500 LLDP/2/DELREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Deleted neighbor, chassis ID: 9883-890f-ca81, port ID: 9883-890f-ca81. %Apr 26 17:22:41:684 2000 H3Cs5500 LLDP/2/DELREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Deleted neighbor, chassis ID: f875-a473-a150, port ID: f875-a473-a150. %Apr 26 18:28:40:752 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/3 (IfIndex 9437186):Created new neighbor, chassis ID: 98fa-9b40-38de, port ID: 98fa-9b40-38de. %Apr 26 19:36:45:570 2000 H3Cs5500 LLDP/2/DELREM:Port GigabitEthernet1/0/3 (IfIndex 9437186):Deleted neighbor, chassis ID: 98fa-9b40-38de, port ID: 98fa-9b40-38de. %Apr 27 07:44:37:653 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Created new neighbor, chassis ID: 9883-890f-ca81, port ID: 9883-890f-ca81. %Apr 27 07:48:18:18 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/1 (IfIndex 9437184):Created new neighbor, chassis ID: f875-a473-a150, port ID: f875-a473-a150. %Apr 27 07:48:59:551 2000 H3Cs5500 LLDP/2/CREREM:Port GigabitEthernet1/0/3 (IfIndex 9437186):Created new neighbor, chassis ID: 98fa-9b40-38de, port ID: 98fa-9b40-38de. %Apr 27 09:03:08:408 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168 %Apr 27 09:03:28:323 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.1.251 192.168.7.251 %Apr 27 09:03:55:132 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.7.251 192.168.6.251 %Apr 27 09:04:33:463 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.7.251 192.168.7.47 %Apr 27 09:05:09:721 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.7.47 192.168.7.251 %Apr 27 09:41:42:910 2000 H3Cs5500 HWCM/4/EXIT: exit from configure mode %Apr 27 09:41:42:911 2000 H3Cs5500 SHELL/4/LOGOUT: VTY logout from 192.168.1.168 %Apr 27 09:43:18:245 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is UP %Apr 27 09:45:53:549 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is DOWN %Apr 27 09:45:57:770 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is UP %Apr 27 09:47:29:540 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168 %Apr 27 09:47:57:75 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:ping -c 1000 -a 192.168.7.251 192.168.7.19 %Apr 27 09:49:51:276 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/19: link status is DOWN %Apr 27 09:59:30:499 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is DOWN %Apr 27 09:59:32:937 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is UP %Apr 27 09:59:50:694 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is DOWN %Apr 27 09:59:53:784 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is UP %Apr 27 10:01:21:756 2000 H3Cs5500 HWCM/4/EXIT: exit from configure mode %Apr 27 10:01:21:756 2000 H3Cs5500 SHELL/4/LOGOUT: VTY logout from 192.168.1.168 %Apr 27 10:06:20:867 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is DOWN %Apr 27 10:06:24:789 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/4: link status is UP %Apr 27 10:10:16:632 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/4: link status is DOWN %Apr 27 10:10:24:311 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is UP %Apr 27 10:53:28:231 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/19: link status is UP %Apr 27 11:06:03:25 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168 %Apr 27 11:07:24:956 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis saved-configuration %Apr 27 11:07:39:568 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis cu %Apr 27 11:08:26:111 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis brief int %Apr 27 11:10:47:868 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis ip routing-table %Apr 27 11:21:06:349 2000 H3Cs5500 HWCM/4/EXIT: exit from configure mode %Apr 27 11:21:06:350 2000 H3Cs5500 SHELL/4/LOGOUT: VTY logout from 192.168.1.168 %Apr 27 13:29:46:466 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is DOWN %Apr 27 13:29:49:808 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is UP %Apr 27 13:29:55:276 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/20: link status is DOWN %Apr 27 13:30:00:106 2000 H3Cs5500 IFNET/4/LINK UPDOWN: GigabitEthernet1/0/4: link status is UP %Apr 27 13:37:06:712 2000 H3Cs5500 SHELL/4/LOGIN: VTY login from 192.168.1.168 %Apr 27 13:37:13:425 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis log %Apr 27 13:38:16:488 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis log summary %Apr 27 13:38:29:143 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis log %Apr 27 13:41:42:330 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis log summary %Apr 27 13:43:07:744 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:dis logbuffer %Apr 27 13:45:58:41 2000 H3Cs5500 SHELL/4/CMD:task:vt0 ip:192.168.1.168 user:** command:display trapbuffer <H3Cs5500>
根据提供的日志，只看到1/0/20有点异常，建议排查的步骤： 1、排查VLAN6和VLAN7内的所有客户端都有类似问题还是只是一部分，缩短排查范围。 2、排查有问题是，server和交换机之间是否新产生日志。 3、排查出server端还是中继问题。 4、建议配置开启stp功能，抑制环路。
我已把vlan6 和vlan7的端口上的网线全断开了，用测试机测试还是存在这样的问题，vlan1端口内接的电脑和设备都正常， 复朋友你的建议： 1、vlan6和vlan7内的所有客户端都有此问题 2、server全是在vlan1内，没有产生日志 3、server没有问题，vlan1中的所有客户端运行正常 4、STP功能是针对所有端口还是接交换机的端口的？