基于三层交换机的vlan间通信，延时很大

mac1plus3

拓扑如图，红圈内的。SW30是三层交换机，同时做VTP服务器。不同VLAN间的PC之间ping 延时很大，还会丢包，如图。请问是什么原因造成的？求大神帮忙看看，万分感谢！下面贴配置

VTP配置

SW30:
conf t
int f1/2
swi mode trunk
int f1/3
swi mode trunk
int f1/4
swi mode trunk
int f1/5
swi mode trunk
exit
exit
vlan database
vtp domain gdut
vlan 100 name net_center
vlan 11 name plant1
vlan 12 name plant2
vlan 13 name plant3
vlan 14 name plant4
vlan 2 name meetingoffice
vlan 3 name market
vlan 4 name sale
vlan 5 name manpower
vlan 6 name finance
vlan 7 name chemical
vlan 8 name ergnomic
vlan 9 name electronic
vlan 10 name office
vlan 15 name services
vlan 16 name mess
vlan 17 name fleet
vlan 18 name hall_1
vlan 19 name hall_2
vlan 20 name hall_3
vlan 21 name hall_4
vlan 22 name hall_5
vlan 23 name hall_6

SW21:
conf t
int f1/0
swi mode trunk
int f1/1
swi mode trunk
int f1/2
swi mode trunk
int f1/3
swi mode trunk
int f1/4
swi mode trunk
int f1/5
swi mode trunk
int f1/6
swi mode trunk
exit
exit
vlan database
vtp client
vtp domain gdut




SW1:
conf t
no ip routing
int f1/0
swi mode trunk
exit
exit
vlan database
vtp client
vtp domain gdut
exit
conf t
int f1/1
switchport mode access
switchport access vlan 2

SW5:
conf t
no ip routing
int f1/0
swi mode trunk
exit
exit
vlan database
vtp client
vtp domain gdut
exit
conf t
int f1/1
switchport mode access
switchport access vlan 7
int f1/2
switchport mode access
switchport access vlan 8
int f1/3
switchport mode access
switchport access vlan 9


SW6:
conf t
no ip routing
int f1/0
swi mode trunk
exit
exit
vlan database
vtp client
vtp domain gdut
exit
conf t
int f1/1
switchport mode access
switchport access vlan 10


基于三层交换机VLAN间路由配置

SW30：
en
conf t
int f1/5
switchport trunk encapsulation dot1q
swi mode trunk
exit
int vlan 2
ip add 192.168.2.253 255.255.255.0
exit
int vlan 7
ip add 192.168.7.253 255.255.255.0
exit
int vlan 8
ip add 192.168.8.253 255.255.255.0

SW21:
int f1/0
switchport trunk encapsulation dot1q
swi mode trunk

because1985

先查看下CPU是不是一直支持很高，在show log查看有什么日志报错没。

netboy

查下是否环路？一般是由于环路造成的

ad100694

提供一个全图吗？也有可能是模拟器的问题

Rockyw

路过了解一下

chenlianghx

GNS3也能模拟交换机？

a1746117370