You connect the FIM-7921F to your 100Gbps data networks using the 1 to 18 front panel QSFP28 interfaces. You can also connect the FIM-7921F to your 400Gbps data networks using the 19 and 20 front panel QSFP-DD interfaces. You can create link aggregation groups that can include data interfaces from multiple FIMs and FPMs in the same chassis.
The front panel also includes M1 and M2 QSFP28, M3 and M4 SFP28 interfaces that connect to the base channel, two Ethernet management interfaces (MGMT1 and MGMT2), and a USB port. The USB port can be used with any USB key for backing up and restoring configuration files.
The FIM-7921F includes an integrated switch fabric (ISF) that connects the front panel interfaces and the chassis fabric backplane to the NP7 processors. The NP7 processors receive sessions from the FIM front panel data interfaces and the FPM front panel data interfaces over the fabric backplane.The NP7 processors use SLBC to distribute sessions to FPMs over the fabric backplane.
The FIM-7921F also includes the following backplane communication channels:
- l Ten 400Gbps fabric backplane channel to distribute traffic to the FPMs.
- l Ten 50Gbps base backplane channel for base backplane communication with the FPMs.
- l One 1Tbps fabric backplane channel for fabric backplane communication with the other FIM.
- l One 50Gbps base backplane channel for base backplane communication with the other FIM.