(IOS software can complete the following tasks software can complete the following tasks: software can complete the following tasks - according to the network plan request to end various network policies such as access list according to the network plan request, end various network policies such as access list, end various network policies. For example, access lists are based on policy routing, VLAN, spanning tree security policy implementation, etc. Spanning tree, security policy implementation, etc. based on policy routing, spanning tree security policy)