Netgear XCM8806 - 8800 SERIES 6-SLOT CHASSIS SWITCH 사용자 설명서

Rebooting the Management Module

To reboot a management module in a specific slot, rather than rebooting the switch, use the 
following command:

reboot {time <month> <day> <year> <hour> <min> <sec>} {cancel} {msm <slot_id>

}

With the additional options available:

slot_id

— Specifies the slot where the module is installed 

msm-a

—Specifies the MSM module installed in slot A

msm-b

—Specifies the MSM module installed in slot B

When you configure a timed reboot of an MSM/MM, use the 

show 

switch

 command to see the scheduled time.

For more information about all of the options available with the reboot command, see the 
NETGEAR 8800 Chassis Switch CLI Manual.

Understanding Hitless Upgrade 

Hitless upgrade is a mechanism that allows you to upgrade the XCM8800 software running 
on the MSMs without taking the switch out of service. Some additional benefits of using 
hitless upgrade include:

Minimizing network downtime

Reducing the amount of traffic lost

Although any method of upgrading software can have an impact on network operation, 
including interrupting Layer 2 network operation, performing a hitless upgrade can decrease 
that impact. 

You must have two MSMs installed in your switch to perform a hitless upgrade. With two 
MSMs installed in the switch, one assumes the role of primary and the other assumes the 
role of backup. The primary MSM provides all of the switch management functions including 
bringing up and programming the I/O modules, running the bridging and routing protocols, 
and configuring the switch. The primary MSM also synchronizes its configurations with the 
backup MSM which allows the backup to take over the management functions of the primary. 

The software on the I/O modules is not updated during a hitless 

upgrade, only the software on the MSMs. The I/O module software is 
updated when the switch reboots or when a disabled slot is enabled.