
Chapter 2 Cabling the CSS
Cabling the CSS 11800 Modules
Switch Fabric Module (SFM and SFM2) Connectors and LEDs
The Switch Fabric Module (SFM or SFM2) sets up and tears down flow connections, monitors switch operation, and performs switch functions. The I/O modules use the SFM processors to perform routing functions, including resolution of unknown addresses, route determinations, protocol processing, and other exception events.
Each module provides
Note When the CSS 11800 contains two passive SFMs and an active SFM switchover occurs, both passive SFMs switchover to become active SFMs.
You can mix SFMs with SFM2s in the same CSS 11800 chassis. However, you must use the same type module as the active SFM and as the passive SFM.
The Switch Fabric Module (SFM and SFM2) contains Power, Status, and Active LEDs. The SFM has four
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