Dell BigIron RX-16, Installation Manual

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188 BigIron RX Installation Guide
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Upgrading the BigIron RX Series software
7
Figure 89 provides a detailed diagram of the Hitless reload process.
FIGURE 89 Management module (MP) and interface module (LP) hitless upgrade process
Performing a hitless OS software upgrade
To perform a hitlessLayer 2 OS software upgrade, you must perform the following tasks:
•
Copy version 02.3.00 or later of the Multi-Service IronWare software to the primary and
secondary image on both the active and standby management modules and interface
modules.
•
Setup a console connection to both the active and standby management modules. These
connections can be through a telnet, SSH, or serial console session.
•
Type the hitless-reload command at the console of the active management module.
Loading the Multi-Service IronWare software onto the router
Hitless Layer 2 OS upgrade loads from the primary and secondary images on the Management
modules. The first step in performing a hitless Layer 2 OS upgrade is to copy the version 02.3.00 or
later images into the flash memory of the active and standby management modules.
For instructions for copying these files, refer to “Upgrading the management module’s monitor and
boot images” on page 180 and “Upgrading the management module’s monitor and boot images”
on page 180.
hitless-reload command
performed at console
Reset Standby MP
MP Sync Done
SW info
request/acknowledge
Reset
Switchover
MP Sync Done
LP SW info reset
LP module up
LP module L2, L3, L4 done?
LP module L2, L3, L4
done response
Reset
Reset
Reset
Original
Active
MP
New
Active
MP
LPs