h3c s2110交换机的远程telnet配置

买的这款 h3c 的s2110 交换机没有说明书，想配个远程telnet管理老是不成功，麻烦哪位大神帮忙看下，附上我的配置：

                80vlan是网管vlan，与上联设备联接，双方互相可以ping通，但无法telnet到s2110上来

<H3C>dis cur

#

 version 5.20.99, Release 1105

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 sysname H3C

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 domain default enable system

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 ipv6

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 management-vlan 80

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 password-recovery enable

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vlan 1

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vlan 2

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vlan 6

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vlan 50

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vlan 80

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vlan 3560       

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domain system

 access-limit disable

 state active

 idle-cut disable

 self-service-url disable

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user-group system

 group-attribute allow-guest

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local-user lytv

 password cipher $c$3$s8eD6/LCQEFBOJdvEpTk/z/QRrq6ebMZbP0=

 service-type telnet

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interface NULL0

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interface Vlan-interface80

 ip address 10.20.80.190 255.255.255.0

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interface Ethernet1/0/1

 port link-type trunk

 port trunk permit vlan all

#               

interface Ethernet1/0/2

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interface Ethernet1/0/3

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interface Ethernet1/0/4

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interface Ethernet1/0/5

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interface Ethernet1/0/6

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interface Ethernet1/0/7

 port access vlan 6

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interface Ethernet1/0/8

 port access vlan 50

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interface GigabitEthernet1/0/9

 port link-type trunk

 port trunk permit vlan all

 combo enable copper

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interface GigabitEthernet1/0/10

 port link-type hybrid

 port hybrid vlan 2 6 50 80 3560 tagged

 port hybrid vlan 1 untagged

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 ip route-static 0.0.0.0 0.0.0.0 10.20.80.250

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 load xml-configuration

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 load tr069-configuration

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user-interface aux 0

user-interface vty 0 15

 authentication-mode scheme

#

return