Cisco 10005 Instalační příručka stáhnout pdf (Strana 21)

Cisco 10000 Series Router Performance Routing Engine Installation

OL-3971-03

Upgrading Software

Forcing Failover in a Redundant Pair

To manually force the primary and secondary devices in a redundant pair to failover, use the redundancy

force-failover command. Manually force the primary and secondary PREs to reverse roles if you need

to replace the primary one. You can then replace the PRE while causing only minimal disruption of

traffic.

Router# redundancy force-failover main-cpu

This command does not generate an alarm as a hardware reset does.

The following example shows how to set the secondary PRE to be active:

Router# redundancy force-failover main-cpu

Upgrading Software

This section describes methods for upgrading Cisco IOS images on the Cisco 10000 series router.

Upgrading Software on a Single PRE

To upgrade software for a single PRE, follow these steps:

Step 1 Copy the IOS image from a TFTP server to the Flash disk in slot 0.

Router# copy tftp disk0:

Address or name of remote host [172.31.53.64]?

Source filename [c10000/c10k-p6-mz]?

c10000/c10k-p6-mz

Accessing

tftp://172.31.53.64/c10000/c10k-p6-mz

Loading c10000/c10k-p6-mz from

172.31.53.64 (via FastEthernet0/0/0):

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!...

[OK - 5717476/11433984 bytes]

5717476 bytes copied in 250.840 secs (22869 bytes/sec)

Router#

Step 2 Tell the Cisco 10000 series router the location in which the new boot image resides. In the following

example, the system is told that the image “c10k-p6-mz” is located on disk 0:

Router(config)# boot system flash disk0:c10k-p6-mz

Step 3 Copy the running configuration to the startup configuration.

Router# copy running-config startup-config

Step 4 Reload the software by entering the reload command.

Router# reload

The system is now using the new Cisco IOS image.

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Cisco 10005 Instalační příručka Strana 21