Giuseppe's reference provides many details, but what a switch "fabric" normally provides is some type of cross bar architecuture that allows multiple points within the architecuture to communicate without sharing bandwidth. For example, port 1 can communicate with port 3, at full rate, while ports 2 and 4 do likewise (NB: fabric isn't always per port).
Within the 6500 architecture, many of the fabric capable cards support local forwarding decision making (with a DFC module) without involving the main chassis supervisor.
The two forging features support a very high aggregate processing and forwarding capacity compared to a 6500 using just "classic" line cards.
To contrast performance, a sup720 supports 15 or 30 Mpps and the shared classic bus 32 Gbps. The sup720 also provides a 720 Gbps fabric. CEF720 line cards, that support a DFC, the DFC supports 48 Mpps (this per each such card - about 400 Mpps for chassis).
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...