Считайте, что: - `0011.2233.4455` — MAC ПК Herobrine, - `0011.2233.4466` — MAC ПК Enderman, - `00aa.bbcc.ddee` — MAC интерфейса роутера R4, подключенного к `SW R`.

`SW TOP:` `show spanning-tree vlan 1` 
`VLAN0001` `  Root ID	Priority	24577` 
`         	Address 	0000.5e00.0101` 
`         	Cost    	4` 
`         	Port    	Gi0/2` `  Bridge ID  Priority	32769` 
` 	Address 	0000.5e00.0110`
`Interface	Role Sts Cost Prio.Nbr Type` 
`Gi0/1    	Desg FWD 4	128.1	P2p` 
`Gi0/2    	Root FWD 4	128.2	P2p` 
`Fa0/1    	Desg FWD 19   128.3	Edge` 
`Fa0/2    	Desg FWD 19   128.4	Edge`
`show mac address-table dynamic` 
`0011.2233.4455   DYNAMIC   Fa0/1` 
`0011.2233.4466   DYNAMIC   Fa0/2` 
`00aa.bbcc.ddee   DYNAMIC   Gi0/2`
`SW L:` 
`show spanning-tree vlan 1` 
`VLAN0001` `  Root ID	Priority	24577` 
`         	Address 	0000.5e00.0101` 
`             Cost    	4` `         	Port    	Gi0/2` 
`  Bridge ID  Priority	32769` 
`         	Address 	0000.5e00.0120`
`Interface	Role Sts Cost Prio.Nbr Type` 
`Gi0/1    	Altn BLK 4	128.1	P2p` 
`Gi0/2    	Root FWD 4	128.2	P2p`
`show mac address-table dynamic` 
`0011.2233.4455   DYNAMIC   Gi0/2` 
`0011.2233.4466   DYNAMIC   Gi0/2` 
`00aa.bbcc.ddee   DYNAMIC   Gi0/2`
`SW R:` 
`show spanning-tree vlan 1` 
`VLAN0001` 
`  This bridge is the root` 
`  Bridge ID  Priority	24577` 
`	         Address 	0000.5e00.0101`
`Interface	Role Sts Cost Prio.Nbr Type` 
`Gi0/1    	Desg FWD 4	128.1	P2p` 
`Gi0/2    	Desg FWD 4	128.2	P2p` 
`Fa0/24   	Desg FWD 19   128.24   Edge`
`show mac address-table dynamic` 
`0011.2233.4455   DYNAMIC   Gi0/1` 
`0011.2233.4466   DYNAMIC   Gi0/1` 
`00aa.bbcc.ddee   DYNAMIC   Fa0/24`