http://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1-x/troubleshooting/b_APIC_Troubleshooting.pdf
Cisco APIC Troubleshooting Guide
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1-x/troubleshooting/b_APIC_Troubleshooting/b_APIC_Troubleshooting_preface_00.html
网络排错是一项复杂的工作，需要扎实的基本功和丰富的实战经验。
