What is link aggregration?? How many types of protocol are
used on that???

Answer Posted / shivali

link aggregation is a tech. in which we bundle the links to appear as a single link to reduce stp overhead to block links in case of redundant links.

here cisco's version of etherchannel is port agg. protocol(PAgP) and ieee 802.3 standard is (lacp)link agg. control protocol.

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