• Supported Platforms
• T640 Routers, TX Matrix Routers

• Related Topics
• Control Plane Connections Between the TX Matrix Router and T640 Router
• TX Matrix Control Plane Cable Considerations
• Overview of Integrating an Operational T640 Router with the TX Matrix Router

Converting and Connecting the Control Planes Between an Operational T640 Router and the TX Matrix Router

Note: We recommend that you manage the system using a directly attached management device instead of an in-band management device. This provides you access to the system if its control plane is not functioning.

To convert and connect the control planes of an operational T640 router (see Table 1 for the TX-CIP and T-CB ports to connect):

1. Determine which host subsystem is functioning as the master or the backup by using one of the two following methods:
   • Check the Routing Engine LEDs on the craft interface. If the green MASTER LED is lit, the corresponding host subsystem is functioning as the master.
   • Issue the following CLI command. The master Routing Engine is designated Master in the Current state field:
     
     

     user@host> show chassis routing-engine

     Routing Engine status:   
       Slot 0:
         Current state                 Master
     ...
      

2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
3. Set the switches on each T-CB before you install them in the chassis:
   • Set the chassis ID switch on each T-CB to 0.
   • Set the M/S switch on each T-CB faceplate to S.

   Note: When you integrate an operational T640 router with the TX Matrix router, you must assign a chassis ID of 0 to the router.

4. Replace the backup CB with a T-CB. Use the standard replacement procedure described in the T640 Core Router Hardware Guide.
5. Perform a graceful switchover to the backup by issuing the request chassis routing-engine master switch command:
   
   

   user@host> request chassis routing-engine master switch

   The Routing Engine paired with the T-CB immediately assumes Routing Engine functions, and there is no interruption to packet forwarding.

6. Replace the other CB (which now belongs to the backup host subsystem) with a T-CB. Use the standard replacement procedure described in the T640 Core Router Hardware Guide.
7. Perform a graceful switchover to the original master by issuing the request chassis routing-engine master switch command:
   
   

   user@host> request chassis routing-engine master switch
8. Verify that the T-CBs are displayed in the output of the show chassis hardware command:
   
   

   user@host> show chassis hardware

   Hardware inventory:
   Item             Version  Part number  Serial number     Description
   Chassis                                65409             T640
   Midplane         REV 03   710-005608   RA1395            T640 Backplane
   ...
   CB 0             REV 02   710-007655   HS5909            Control Board (CB-T)
   CB 1             REV 02   710-007655   HS5910            Control Board (CB-T)
   ...

9. Plug one end of a UTP Category 5 cable into the appropriate RJ-45 port on TX-CIP-0.
10. Plug the other end of the cable into the port labeled CIP on T-CB-0. Dress the cable appropriately.

    Note: The RJ-45 port labeled AUX on a T-CB is reserved for future use.

11. Plug one end of a UTP Category 5 cable into the appropriate RJ-45 port on TX-CIP-1.
12. Plug the other end of the cable into the port labeled CIP on T-CB-1. Dress the cable appropriately.
13. Verify that the Ethernet connection LED on the left side of each T-CB CIP port is lit green, which indicates a 100-Mbps connection.

Note: The connections between the TX-CIPs and the T-CBs are proprietary Ethernet connections. Do not attempt to connect these components through a switch or hub.