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Community Member

What is dCEF?

When I check the difference between WS-X6816-GBIC and WS-X6416-GBIC, I noticed that the mian diffrence is dCEF,What is it and where can I find the related document in cisco web site?

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Community Member

Re: What is dCEF?

dCEF is distributed Cisco Express Forwarding. Normal CEF is where the supervisor engine holds the forwarding table and the adjacency/neighbour table and makes forwarding decisions for every line card. The main difference with dCEF is that each line card holds a copy of the neighbour table and forwarding table and can make forwarding decisions for itself. This takes burden of the Supervisor engine and speeds up packet forwarding

Daniel,

Community Member

Re: What is dCEF?

Besides dCEF, the biggest difference is the 6416 in NOT fabric enabled, where the 6816 is dual fabric enabled

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