交换机之间组网，上月还通的这月没动啥突然不通

本人菜鸟，公司需要被动学习。 请教各位大佬，设备监控交换机和办公核心交换机互联，核心交换机trunk聚合口到接入交换机。上月接入交换机还能ping通设备监控核心交换机，但是这月不知道啥时候开始突然ping不通了。整两天没明白为什么，求教！

监控设备交换机 vlan 130 name server exit interface gigabitethernet1/47 接办公核心交换机 switchport access vlan 130 exit !end interface vlan130 ip address 172.18.100.254 255.255.255.0 exit 办公核心交换机 vlan 210 name outside_network_1F # vlan 240 name outside_network_4F # vlan 4000 stp global enable # dhcp server ip-pool office_1f gateway-list 192.168.20.1 network 192.168.20.0 mask 255.255.255.0 dns-list 221.6.4.66 # dhcp server ip-pool office_4f gateway-list 192.168.50.1 network 192.168.50.0 mask 255.255.255.0 dns-list 221.6.4.66 # interface Bridge-Aggregation1 接办公接入交换机 port link-type trunk port trunk permit vlan all link-aggregation mode dynamic # interface Vlan-interface210 ip address 192.168.20.1 255.255.255.0 # interface Vlan-interface240 ip address 192.168.50.1 255.255.255.0 # interface Vlan-interface4000 ip address 172.18.100.200 255.255.255.0 # interface GigabitEthernet1/0/1 port link-mode bridge port link-type trunk port trunk permit vlan all undo stp enable port link-aggregation group 1 # interface GigabitEthernet1/0/2 port link-mode bridge port link-type trunk port trunk permit vlan all undo stp enable port link-aggregation group 1 # interface GigabitEthernet1/0/18 电脑插这个口可以ping通172.18.100.254 port link-mode bridge port access vlan 240 combo enable copper undo stp enable # interface GigabitEthernet1/0/21 port link-mode bridge port access vlan 210 combo enable copper undo stp enable # interface Ten-GigabitEthernet1/0/28 接监控设备交换机,设备交换机地址172.18.100.254 port link-mode bridge port access vlan 4000 # ip route-static 0.0.0.0 0 192.0.2.1 preference 10 ip route-static 172.18.100.0 24 172.18.100.254 preference 5 ip route-static 192.168.60.0 24 192.0.4.1 preference 4 ip route-static 192.168.120.0 24 172.18.100.254 preference 6 # 办公接入交换机 vlan batch 210 240 interface Eth-Trunk1 接办公核心交换机 port link-type trunk port trunk allow-pass vlan 2 to 4094 mode lacp # interface GigabitEthernet0/0/1 port link-type access port default vlan 210 interface GigabitEthernet0/0/12 port link-type access port default vlan 210 # interface GigabitEthernet0/0/13 电脑插vl210或者vl250就ping不通172.18.100.254 port link-type access port default vlan 240 # interface GigabitEthernet0/0/24 port link-type access port default vlan 240 # interface GigabitEthernet0/0/25 eth-trunk 1 # interface GigabitEthernet0/0/26 eth-trunk 1 # interface GigabitEthernet0/0/27 port link-type trunk port trunk allow-pass vlan 2 to 4094 # interface GigabitEthernet0/0/28 port link-type trunk port trunk allow-pass vlan 2 to 4094 #