接入交换机上行口放通某个VLAN过来这台交换机就会掉线

请看这台接入交换机的配置帮分析一个故障的原因 [SX2_4FA#_48]display current-configuration # version 5.20.99, Release 1109 # sysname SX2_4FA#_48 # clock timezone beijing add 08:00:00 # domain default enable system # ipv6 # telnet server enable # loopback-detection enable # password-recovery enable # acl number 3333 rule 25 permit ip source 10.12.82.0 0.0.0.255 rule 31 permit ip source 10.66.0.60 0 rule 35 permit ip source 10.4.241.2 0 rule 50 deny ip # vlan 1 # vlan 2 description for-jierujiaohuanjiguanli # vlan 1471 # vlan 2001 description jiaowumenpai # vlan 4000 # 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$3$H7WLoOuWq3Ql8clEtzY8vRtDu3pD4JAv authorization-attribute level 3 service-type telnet # stp enable # interface NULL0 # interface Vlan-interface2 ip address 10.8.24.7 255.255.255.0 # interface Vlan-interface4000 ip address 10.100.1.46 255.255.255.0 # interface GigabitEthernet1/0/1 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/2 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/3 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/4 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/5 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/6 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/7 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/8 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/9 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/10 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/11 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/12 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/13 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/14 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/15 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/16 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/17 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/18 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/19 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/20 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/21 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/22 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/23 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/24 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/25 port access vlan 2001 loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/26 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/27 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/28 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/29 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/30 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/31 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/32 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/33 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/34 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/35 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/36 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/37 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/38 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/39 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/40 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/41 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/42 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/43 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/44 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/45 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/46 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/47 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/48 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/49 port link-type trunk undo port trunk permit vlan 1 port trunk permit vlan 1471 4000 # interface GigabitEthernet1/0/50 port link-type trunk undo port trunk permit vlan 1 port trunk permit vlan 1471 4000 # interface GigabitEthernet1/0/51 port link-type trunk undo port trunk permit vlan 1 port trunk permit vlan 2 2001 4000 loopback-detection enable loopback-detection control enable loopback-detection per-vlan enable # interface GigabitEthernet1/0/52 port link-type trunk undo port trunk permit vlan 1 port trunk permit vlan 2 1471 2001 4000 loopback-detection enable loopback-detection control enable loopback-detection per-vlan enable dhcp-snooping trust # dhcp-snooping # ip route-static 0.0.0.0 0.0.0.0 10.8.24.1 # undo info-center logfile enable # snmp-agent snmp-agent local-engineid 383030303633413236353133343837414441413244303930 snmp-agent community read gxlsxy snmp-agent community write gxlsxyh3c snmp-agent sys-info version all snmp-agent target-host trap address udp-domain 10.4.252.244 params securityname gxlsxy snmp-agent target-host trap address udp-domain 10.6.6.20 params securityname gxlsxy v2c # ntp-service unicast-server 10.4.192.15 # load xml-configuration # load tr069-configuration # user-interface aux 0 user-interface vty 0 4 authentication-mode scheme user-interface vty 5 15 # return 这个是一台接入交换机的配置，G1/0/52是对汇聚交换机的接口，G1/0/51是对下一级一台接入交换机的接口，不知道为什么，汇聚交换机对这台交换机放通vlan 1471的话，这台交换机就会掉线，不放通vlan 1471就正常在线，我已经把这台交换机接终端的vlan是1471的access口都shutdown了还是这样，这是为什么？

请看这台接入交换机的配置帮分析一个故障的原因 [SX2_4FA#_48]display current-configuration # version 5.20.99, Release 1109 # sysname SX2_4FA#_48 # clock timezone beijing add 08:00:00 # domain default enable system # ipv6 # telnet server enable # loopback-detection enable # password-recovery enable # acl number 3333 rule 25 permit ip source 10.12.82.0 0.0.0.255 rule 31 permit ip source 10.66.0.60 0 rule 35 permit ip source 10.4.241.2 0 rule 50 deny ip # vlan 1 # vlan 2 description for-jierujiaohuanjiguanli # vlan 1471 # vlan 2001 description jiaowumenpai # vlan 4000 # 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$3$H7WLoOuWq3Ql8clEtzY8vRtDu3pD4JAv authorization-attribute level 3 service-type telnet # stp enable # interface NULL0 # interface Vlan-interface2 ip address 10.8.24.7 255.255.255.0 # interface Vlan-interface4000 ip address 10.100.1.46 255.255.255.0 # interface GigabitEthernet1/0/1 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/2 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/3 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/4 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/5 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/6 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/7 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/8 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/9 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/10 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/11 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/12 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/13 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/14 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/15 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/16 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/17 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/18 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/19 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/20 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/21 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/22 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/23 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/24 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/25 port access vlan 2001 loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/26 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/27 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/28 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/29 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/30 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/31 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/32 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/33 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/34 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/35 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/36 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/37 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/38 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/39 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/40 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/41 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/42 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/43 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/44 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/45 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/46 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/47 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/48 port access vlan 1471 shutdown loopback-detection enable loopback-detection action shutdown # interface GigabitEthernet1/0/49 port link-type trunk undo port trunk permit vlan 1 port trunk permit vlan 1471 4000 # interface GigabitEthernet1/0/50 port link-type trunk undo port trunk permit vlan 1 port trunk permit vlan 1471 4000 # interface GigabitEthernet1/0/51 port link-type trunk undo port trunk permit vlan 1 port trunk permit vlan 2 2001 4000 loopback-detection enable loopback-detection control enable loopback-detection per-vlan enable # interface GigabitEthernet1/0/52 port link-type trunk undo port trunk permit vlan 1 port trunk permit vlan 2 1471 2001 4000 loopback-detection enable loopback-detection control enable loopback-detection per-vlan enable dhcp-snooping trust # dhcp-snooping # ip route-static 0.0.0.0 0.0.0.0 10.8.24.1 # undo info-center logfile enable # snmp-agent snmp-agent local-engineid 383030303633413236353133343837414441413244303930 snmp-agent community read gxlsxy snmp-agent community write gxlsxyh3c snmp-agent sys-info version all snmp-agent target-host trap address udp-domain 10.4.252.244 params securityname gxlsxy snmp-agent target-host trap address udp-domain 10.6.6.20 params securityname gxlsxy v2c # ntp-service unicast-server 10.4.192.15 # load xml-configuration # load tr069-configuration # user-interface aux 0 user-interface vty 0 4 authentication-mode scheme user-interface vty 5 15 # return 这个是一台接入交换机的配置，G1/0/52是对汇聚交换机的接口，G1/0/51是对下一级一台接入交换机的接口，不知道为什么，汇聚交换机对这台交换机放通vlan 1471的话，这台交换机就会掉线，不放通vlan 1471就正常在线，我已经把这台交换机接终端的vlan是1471的access口都shutdown了还是这样，这是为什么？