s5110-28p 上外网卡顿

公司有一台s5110-28p做DHCP服务器，下接终端，其中一个口接外网路由器，一个口接另外一个局域网。现在出现情况，终端电脑ping5110 正常，telnet5110后  ping 外网正常，终端电脑ping外网丢包。就是上外网老卡。  加上手机，终端数量维持在不到100个

5110配置如下：

<H3C>dis current-configuration # version 5.20.99, Release 1109 # sysname H3C # domain default enable system # ipv6 # telnet server enable # password-recovery enable # vlan 1 # vlan 10 # vlan 20 # vlan 30 # vlan 40 description to-luyouqi # vlan 756 description TO-jianghuai # domain system access-limit disable state active idle-cut disable self-service-url disable # dhcp server ip-pool 10 network 10.145.1.0 mask 255.255.255.0 gateway-list 10.145.1.254 dns-list 211.138.180.2 # dhcp server ip-pool 20 network 10.145.2.0 mask 255.255.255.0 gateway-list 10.145.2.254 dns-list 211.138.180.2 # dhcp server ip-pool 30 network 10.145.3.0 mask 255.255.255.0 gateway-list 10.145.3.254 dns-list 192.168.9.1 202.102.192.68 # user-group system group-attribute allow-guest # local-user admin password cipher $c$3$TRj1kqIcKpSfvuKeFkALJ4dfn1pSnIx4 authorization-attribute level 3 service-type telnet terminal service-type web # interface NULL0 # interface Vlan-interface10 ip address 10.145.1.254 255.255.255.0 # interface Vlan-interface20 ip address 10.145.2.254 255.255.255.0 # interface Vlan-interface30 ip address 10.145.3.254 255.255.255.0 # interface Vlan-interface40 ip address 172.18.254.2 255.255.255.0 # interface Vlan-interface756 ip address 10.134.7.1 255.255.255.0 # interface GigabitEthernet1/0/1 port access vlan 10 # interface GigabitEthernet1/0/2 port access vlan 10 # interface GigabitEthernet1/0/3 port access vlan 10 # interface GigabitEthernet1/0/4 port access vlan 10 # interface GigabitEthernet1/0/5 port access vlan 10 # interface GigabitEthernet1/0/6 port access vlan 10 # interface GigabitEthernet1/0/7 port access vlan 10 # interface GigabitEthernet1/0/8 port access vlan 10 # interface GigabitEthernet1/0/9 port access vlan 10 # interface GigabitEthernet1/0/10 port access vlan 10 # interface GigabitEthernet1/0/11 port access vlan 20 # interface GigabitEthernet1/0/12 port access vlan 20 # interface GigabitEthernet1/0/13 port access vlan 20 # interface GigabitEthernet1/0/14 port access vlan 20 # interface GigabitEthernet1/0/15 port access vlan 20 # interface GigabitEthernet1/0/16 port access vlan 20 # interface GigabitEthernet1/0/17 port access vlan 20 # interface GigabitEthernet1/0/18 port access vlan 20 # interface GigabitEthernet1/0/19 port access vlan 20 # interface GigabitEthernet1/0/20 port access vlan 20 # interface GigabitEthernet1/0/21 port access vlan 40 # interface GigabitEthernet1/0/22 port access vlan 40 # interface GigabitEthernet1/0/23 port access vlan 756 # interface GigabitEthernet1/0/24 port access vlan 756 # interface GigabitEthernet1/0/25 # interface GigabitEthernet1/0/26 # interface GigabitEthernet1/0/27 # interface GigabitEthernet1/0/28 # ip route-static 0.0.0.0 0.0.0.0 172.18.254.1 ip route-static 192.168.0.0 255.255.0.0 10.134.7.254 # undo info-center logfile enable # dhcp server forbidden-ip 10.145.1.201 10.145.1.254 dhcp server forbidden-ip 10.145.2.201 10.145.2.254 dhcp server forbidden-ip 10.145.3.201 10.145.3.254 # dhcp enable # load xml-configuration # load tr069-configuration # user-interface aux 0 user-interface vty 0 4 authentication-mode scheme user-interface vty 5 15 # return