1. Internet Protocol—DARPA Internet Program Protocol Specification;Request For Comments 791;Postel,1981
2. TCP Extensions For High Performance; Request For Comments 1323;Jacobson,1992
3. Amendment to Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications—Aggregation of Multiple Link Segments,2000
4. Understanding EtherChannel Load Balancing and Redundancy on Catalyst Switcheshttps://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/12-2_55_se/configuration/guide/3750xscg/swethchl.html#18140