Juniper Networks T1600 Benutzerhandbuch

NOTE: After a power supply is powered on, it can take up to 60 seconds for status
indicators—such as the LEDs on the power supply, the 

show chassis

 command

display, and messages on the LED display on the craft interface—to indicate that the
power supply is functioning normally. Ignore error indicators that appear during the
first 60 seconds.

5.

Verify that the 

CB ON

 LEDs on the power supply faceplate are lit steadily. The

CB ON

 LEDs blink momentarily, then light steadily to indicate that the circuit

breakers are on.

6.

Verify that the 

DC OK

 LED on the power supply faceplate is lit steadily, indicating

that the power supply is correctly installed and is functioning properly.

NOTE: After powering on a power supply, wait at least 60 seconds before turning it
off. If the system is completely powered off when you power on the power supply,
the Routing Engine boots as the power supply completes its startup sequence. If the
Routing Engine finishes booting and you need to power off the system again, first
issue the CLI 

request system halt

 command.

After powering off a power supply, wait at least 60 seconds before turning it back
on.

Upgrading SIBs

To convert an operational T640 routing node to a T1600 routing node, you upgrade
the standard SIBs or SIBs version B in the T640 routing node to T1600-SIBs. You
repeat the upgrade procedures for each of the five SIBs in the routing node.

NOTE: During the SIB upgrade:

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The routing node should not experience packet loss if the traffic is less than
50 percent per Packet Forwarding Engine in each FPC.

■

The routing node might experience some packet loss if the traffic is more than
50 percent per Packet Forwarding Engine in each FPC, depending on the
operational environment.

For more information, contact your customer support representative.

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Upgrading SIBs

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Upgrading SIBs