Multi-Chassis 2+1 Configuration
This section describes how to configure a multi-chassis 2+1 configuration. In this configuration, two LCCs
(LCC0 and LCC1) connect to one FCC. The configuration differs depending on the number of S2 FCs that
are installed in the FCC. The configurations described here include:
At the LCC end of a fabric cable, the plane number is determined by the slot to which the cable is connected.
The other end of each fabric cable must connect to the S2 fabric card designated for the same plane number.
Note
Prerequisites
For connecting the fabric, you need the following:
•
192 MPO-24 fiber cables (96 per LCC)
•
Optical module sets:
◦
In 1T multi-chassis 2+1 mode
: Four CXP optical module sets (Cisco PID NCS-FAB-OPT). Two
sets are required per LCC: one set plugs into the LCC and the other set plugs into the FCC. Each
set includes 96 CXP-100G-SR12 modules for a total of 384 modules.
◦
In 2T multi-chassis 2+1 mode
: Four CXP2 optical module sets (Cisco PID NCS-FAB-OPT2).
Two sets are required per LCC: one set plugs into the LCC and the other set plugs into the FCC.
Each set includes 96 ONS-CXP2-SR25 modules for a total of 384 modules.
Configuring a 2+1 Configuration with Six S2 FCs
The following figure shows two line card chassis (LCC0 and LCC1) connected to one fabric card chassis
(FCC0) that has six S2 FCs installed. The figure shows the 2+1 connections for one fabric plane. To complete
Cisco Network Convergence System 6000 Fabric Card Chassis Hardware Installation Guide
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Cabling a Multi-Chassis Configuration
Multi-Chassis 2+1 Configuration