三层交换机登录要密码区别？

大家好，以下两个交换机配置，A交换机进console要账号密码，B交换机进console不需要账号密码,下面命令区别在哪儿？

A交换机配置如下：

<sitang_jifang>disp cu
#
 sysname sitang_jifang
#
radius scheme system
#
domain system
#
local-user admin
 password cipher FS;$C300X+VHV_57`0MIPQ!!
 service-type telnet
 level 3
#
vlan 1
#
vlan 3 to 20
#
vlan 50
#
vlan 100
#
vlan 1000
#
interface Vlan-interface1
#
interface Vlan-interface1000
 ip address 172.168.10.53 255.255.255.0
#
interface Aux1/0/0
#
interface Ethernet1/0/1
 port access vlan 20
#
interface Ethernet1/0/2
 port access vlan 20
#
interface Ethernet1/0/3
 port access vlan 19
#
interface Ethernet1/0/4
#
interface Ethernet1/0/5
#
interface Ethernet1/0/6
#
interface Ethernet1/0/7
#
interface Ethernet1/0/8
#
interface Ethernet1/0/9
#
interface Ethernet1/0/10
#
interface Ethernet1/0/11
#
interface Ethernet1/0/12
#
interface Ethernet1/0/13
#
interface Ethernet1/0/14
#
interface Ethernet1/0/15
#
interface Ethernet1/0/16
#
interface Ethernet1/0/17
#
interface Ethernet1/0/18
#
interface Ethernet1/0/19
#
interface Ethernet1/0/20
#
interface Ethernet1/0/21
#
interface Ethernet1/0/22
#
interface Ethernet1/0/23
#
interface Ethernet1/0/24
 port link-type trunk
 port trunk permit vlan all
#
interface GigabitEthernet1/1/1
 port link-type trunk
 port trunk permit vlan all
#
interface GigabitEthernet1/1/2
 port link-type trunk
 port trunk permit vlan all
#
interface GigabitEthernet1/1/3
 port link-type trunk
 port trunk permit vlan all
#
interface GigabitEthernet1/1/4
 port link-type trunk
 port trunk permit vlan all
#
 undo irf-fabric authentication-mode
#
interface NULL0
#
 voice vlan mac-address 0001-e300-0000 mask ffff-ff00-0000
#
 ip route-static 0.0.0.0 0.0.0.0 172.168.10.1 preference 60
#
user-interface aux 0
 authentication-mode scheme
user-interface aux 1 7
user-interface vty 0 4
 authentication-mode scheme
 user privilege level 3
#
return

<sitang_jifang>
<sitang_jifang>

B交换机配置如下：

Username:admin
Password:
<huiju-4>
<huiju-4>
<huiju-4>disp cu
#
 version 5.20, Release 2220P02
#
 sysname huiju-4
#
 irf mac-address persistent timer
 irf auto-update enable
 undo irf link-delay
#
 domain default enable system
#
 telnet server enable
#
 undo ip http enable
#
 password-recovery enable
#
vlan 1
#
vlan 2 to 20
#
vlan 50
#
vlan 100
#
vlan 1000
#
domain system
 access-limit disable
 state active
 idle-cut disable
 self-service-url disable
#
user-group system
 group-attribute allow-guest
#
local-user admin
 password cipher $c$3$yQQ7JjpoNJfm6zGTUCccFQ4Y5Pjt7Zwz
 authorization-attribute level 3
 service-type telnet
#
interface Bridge-Aggregation1
 port access vlan 100
#
interface Bridge-Aggregation2
 port access vlan 100
#
interface NULL0
#
interface Vlan-interface1000
 ip address 172.168.10.5 255.255.255.0
#
interface GigabitEthernet1/0/1
 port access vlan 6
#
interface GigabitEthernet1/0/2
 port access vlan 6
#
interface GigabitEthernet1/0/3
 port access vlan 6
#
interface GigabitEthernet1/0/4
 port access vlan 6
#
interface GigabitEthernet1/0/5
 port access vlan 6
#
interface GigabitEthernet1/0/6
 port access vlan 6
#
interface GigabitEthernet1/0/7
 port access vlan 6
#
interface GigabitEthernet1/0/8
 port access vlan 6
#
interface GigabitEthernet1/0/9
 port access vlan 6
#
interface GigabitEthernet1/0/10
 port access vlan 6
#
interface GigabitEthernet1/0/11
 port access vlan 50
#
interface GigabitEthernet1/0/12
 port access vlan 50
#
interface GigabitEthernet1/0/13
 port access vlan 4
#
interface GigabitEthernet1/0/14
 port access vlan 4
#
interface GigabitEthernet1/0/15
 port access vlan 100
#
interface GigabitEthernet1/0/16
 port access vlan 100
#
interface GigabitEthernet1/0/17
 port access vlan 100
 port link-aggregation group 1
#
interface GigabitEthernet1/0/18
 port access vlan 100
 port link-aggregation group 1
#
interface GigabitEthernet1/0/19
 port access vlan 100
 port link-aggregation group 2
#
interface GigabitEthernet1/0/20
 port access vlan 100
 port link-aggregation group 2
#
interface GigabitEthernet1/0/21
 port access vlan 100
#
interface GigabitEthernet1/0/22
 port access vlan 100
#
interface GigabitEthernet1/0/23
 port link-type trunk
 port trunk permit vlan all
#
interface GigabitEthernet1/0/24
 shutdown
#
interface GigabitEthernet1/0/25
 shutdown
#
interface GigabitEthernet1/0/26
 port access vlan 6
#
interface GigabitEthernet1/0/27
 shutdown
#
interface GigabitEthernet1/0/28
 shutdown
#
 ip route-static 0.0.0.0 0.0.0.0 172.168.10.1
#
 load xml-configuration
#
user-interface aux 0
user-interface vty 0 4
 authentication-mode scheme
 user privilege level 3
 set authentication password cipher $c$3$Hd8Ui+angmAM+Bo63Qgzn8UIFYDmuyOUXg==
user-interface vty 5 15
#
return
<huiju-4>