s5560交换机做三层配置，

互ping vlan地址时通时不通，有时ping的通vlan地址但是ping不同vlan下的终端，大佬指导下

vlan 10

q

vlan 20

q

vlan 30

q

int vlan 10

ip address 192.1.3.240 255.255.255.0

quit

int vlan 20

ip address 192.1.9.254 255.255.255.0

quit 

int vlan 30

ip address 192.168.2.254 255.255.255.0

quit

interface range name 10 interface GigabitEthernet 1/0/4 to GigabitEthernet 1/0/12

port link-type access

port access vlan 10

quit

int g1/0/1

port link-type access

port access vlan 10

int g1/0/3

port link-type trunk

port trunk permit vlan 10 20 30

quit

interface range name 20 interface GigabitEthernet 1/0/13 to GigabitEthernet 1/0/18

port link-type access

port access vlan 20

quit

interface range name 30 interface GigabitEthernet 1/0/21 to GigabitEthernet 1/0/26

port link-type access

port access vlan 30

quit