Because a special device is required for each machine, out-of-bandwidth management can be much more expensive. A remote management card usually has at least a partially independent power supply and can switch the main machine on and off through the network. Despite these limitations, in-band solutions are still common because they are simpler and much lower-cost.īoth in-band and out-of-band management are usually done through a network connection, but an out-of-band management card can use a physically separated network connector if preferred. A classic example of this limitation is when a sysadmin attempts to reconfigure the network on a remote machine only to find themselves locked out and unable to fix the problem without physically going to the machine. It does not allow management of remote network components independently of the current status of other network components. It typically requires software that must be installed on the remote system being managed and only works after the operating system has been booted and networking is brought up. It allows a system administrator to monitor and manage servers and other network-attached equipment by remote control regardless of whether the machine is powered on or whether an OS is installed or functional.īy contrast, in-band management through VNC or SSH is based on in-band connectivity (the usual network channel). In computing, one form of out-of-band management is sometimes called lights-out management ( LOM) and involves the use of a dedicated management channel for device maintenance. It also can be used to ensure management connectivity (including the ability to determine the status of any network component) independent of the status of other in-band network components. Out-of-band management allows the network operator to establish trust boundaries in accessing the management function to apply it to network resources. Out-of-band ( OOB) is a networking term which refers to having a separate channel of communication which does not travel over the usual data stream. In systems management, out-of-band management involves the use of management interfaces (or serial ports) for managing and networking equipment.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |