s5500的VLAN故障

现在出现的问题是：

vlan 1内的电脑与设备能正常，但vlan 6 和 vlan 7内的所有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。

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，在vlan1 内的server都是正常的，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

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

公司的三层交换机出现奇怪的问题，请帮忙看下是什么问题，谢谢

设备环境是：LS-5500-28C-SI Y* 的三层交换机，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， DHCP用的DHCP RELAY方式，从192.168.1.221上获取IP, 所有网段的电脑从192.168.1.6这个防火墙出去上网，三个网段的电脑是可相互通讯的

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>