Upgrading to the Control Board-Routing Engine REMX2K-X8-64G in a Redundant Host Subsystem
A redundant host subsystem consists of a primary Routing Engine-Control Board (CB-RE) (RE0) and a backup CB-RE (RE1). To upgrade the host subsystem to use the REMX2K-X8-64G CB-RE, you must first uninstall the backup CB-RE and install the REMX2K-X8-64G CB-RE, which then becomes the backup CB-RE. Configure this backup CB-RE as the primary CB-RE. Then replace the other CB-RE and configure it as the backup CB-RE.
Save the router configuration before upgrading the CB-RE.
Taking the Host Subsystem Offline
To take the host subsystem offline perform the following steps:
- On the external management device connected to the CB-RE,
issue the request system halt other-routing-engine operational
mode command to offline the backup CB-RE. The command shuts down the
CB-RE cleanly by preserving the state information.
user@host> request system halt other-routing-engine
Wait until a message appears on the console confirming that the operating system has halted.
- Take the Control board offline by using the request
chassis cb slot 0/1 offline operational
mode command. The command shuts down the CB-RE completely.
user@host> request chassis cb slot 1 offline
Removing the Backup CB-RE
To remove a CB-RE (see Figure 1):
Remove the CB-RE as a unit.
Before removing a CB-RE, ensure that you know how to operate the ejector handles properly to avoid damage to the equipment.
Before you replace a CB-RE, you must take the host subsystem offline. If there is only one host subsystem, taking the host subsystem offline shuts down the router.
- Place an electrostatic bag or antistatic mat on a flat, stable surface.
- Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
- Open the ejector handles outward simultaneously to unseat the CB-RE.
- Grasp the ejector handles, and slide the CB-RE about halfway out of the chassis.
- Place one hand underneath the CB-RE to support it, and slide it completely out of the chassis.
- Place the CB-RE on the antistatic mat or inside an antistatic bag.
- If you are not replacing the CB-RE immediately, install a blank panel over the empty slot.
Installing the REMX2K-X8-64G CB-RE
To install a CB-RE:
- Attach an ESD grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
- Remove the CB-RE from the electrostatic bag.
- Carefully align the sides of the CB-RE with the guides inside the chassis.
- Slide the CB-RE into the chassis until you feel resistance, carefully ensuring that it is correctly aligned.
- Grasp both ejector handles, and gently close them inward simultaneously until the CB-RE is fully seated.
- Check the LEDs on the CB-RE faceplate to verify that it
is functioning normally.
ONLINELED should blink green initially and light steadily a few minutes after the CB-RE is installed.
OK/FAILLED is yellow, remove and install the CB-RE again. If the
OK/FAILLED still lights steadily, the CB-RE is not functioning properly. Contact your customer support representative. See Contacting Customer Support.
- Check the status of the CB-RE by using the show chassis environment cb command.
The CB-RE might require several minutes to boot. After the CB-RE
boots, verify that it is installed correctly by checking the
RE1 LEDs on the craft interface. If the router is operational and the
CB-RE is functioning properly, the green
ONLINE LED on the CB-RE lights steadily. If the red
FAIL LED on the CB-RE lights steadily instead, remove and install the
CB-RE again. If the red
FAIL LED still lights
steadily, the CB-RE is not functioning properly. Contact your customer
Verifying and Configuring the Upgraded CB-RE as the Primary
After replacing the backup CB-RE with the REMX2K-X8-64G CB-RE, perform the following steps:
- Verify that the REMX2K-X8-64G CB-RE is online by issuing
the show chassis hardware and show chassis routing-engine
Verify the software by using the show vmhost status and show vmhost version commands.
- After you install the REMX2K-X8-64G CB-RE, the CB-RE is automatically powered on and comes up in amnesiac mode as it is loaded with factory defaults. After the CB-RE comes up in amnesiac mode, load the base configuration and commit.
- Configure the backup CB-RE by using the commit synchronize command to copy the configuration to the backup CB-RE.
- Use the request chassis routing-engine master switch command to make the REMX2K-X8-64G CB-RE (RE1) the primary CB-RE. All FPCs reboot after this step.
Verifying and Configuring the Upgraded CB-RE as the Backup
After replacing the primary CB-RE with the REMX2K-X8-64G CB-RE, perform the following steps:
- Use the request chassis routing-engine master switch command to make the newly installed REMX2K-X8-64G CB-RE (RE0) the backup CB-RE.
- Use the commit synchronize command to copy the active configuration from the primary CB-RE to the backup CB-RE.