Avaya Configuring Remote Access Manual de usuario Pagina 50

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Configuring Remote Access
2-4 114084 Rev. A
Minimize the need to maintain the router’s local file system.
When the router gets files from a BOOTP server, it stores the files in memory,
not in its file system, reducing the need for frequent file system compactions.
(Refer to Using Technician Interface Software or Managing Routers and BNX
Platforms to learn about compacting a file system.)
Restore a corrupted file system.
The router’s file system resides on an installed Flash card. With Netboot
enabled, the router can still boot over the network, if the local files become
corrupted. (When the router reboots due to a reset or power loss, it
automatically boots the configuration file and software image over the
network if it cannot find intact files locally.)
Get application and string files from the BOOTP server as the router needs
them.
Getting these files individually, rather than getting the entire an.exe or arn.exe
file, minimizes the cost of line usage and prevents saturation of the router’s
memory.
A disadvantage to Netboot is that it requires the most time to boot the router.
Directed Netboot
Directed Netboot requires a preconfigured communications link to a TFTP server
that contains the router’s boot image and a customized configuration file.
Compared with Netboot, Directed Netboot
Creates less network traffic
Is generally faster
Directed Netboot is usually reserved for starting the router after the initial startup
because you need to know the exact location of the software image and
configuration files. During Directed Netboot, the router transfers files from a
TFTP server directly, bypassing negotiation with a BOOTP server for the IP
address and pathname to the software files.
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