KB.15.15

Figure 274 Showing boot command with default flash set to secondary

CAUTION: For a given reboot, the switch automatically reboots from the startup-config file

assigned to the flash (primary or secondary) being used for the current reboot. The

startup-default command can be used to set a boot configuration policy. This means that

both the flash image and one of the three configuration files can be specified as the default boot

policy.

Boot and reload commands with OSPFv2 or OSPFv3 enabled

It is now possible to gracefully shut down OSPFv2 or OSPFv3 routing on HP switches without losing

packets that are in transit. OSPF neighbors are informed that the router should not be used for

forwarding traffic, which allows for maintenance on the switch without interrupting traffic in the

network. There is no effect on the saved switch configuration

Prior to a switch shutdown, the CLI/SNMP reload command or the CLI boot command is executed

to initiate the sending of OSPF "empty Hello list" messages on the interfaces that are part of the

OSPF routing configuration. After a small delay (approximately 2 seconds) that allows the messages

to be transmitted on all applicable interfaces the boot or reload command continues.

Modules operating in nonstop mode

When a switch is in standalone mode and OSPF routing is enabled, the "empty Hello list" is

transmitted whenever the boot or reload command is executed.

When the switch is operating in nonstop switching mode (redundant), and a single module is being

reloaded or booted, the standby module notifies neighboring switches of the management module

failover. If the failover fails, the "empty Hello list" is transmitted before the switch is rebooted.

When a switch is operating with multiple management modules in warm standby mode, the "empty

Hello list" is sent when a reload or boot command is executed. The standby management module

sends out OSPF Hello packets after becoming the active management module.

Additional commands affected by redundant management

The other existing commands operate with redundant management as shown below.

ActionCommand

If a new image is downloaded using auto-tftp, the active management

module downloads the new software version to both the active and standby

auto-tftp

modules. Rebooting after the auto-tftp completes reboots the entire

system.

The banner will not been seen on the standby module, only the active

module.

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494 Chassis Redundancy (8200zl Switches)