Avaya Connecting ASN Routers to a Network Manual de usuario descargar pdf (Pagina 97)

Troubleshooting Network Boot Problems

308652-14.00 Rev 00

A-15

Upgrading Software

You can upgrade an ASN’s image using one or both of the following options:

• Configure the ASN to Netboot the image and boot the ASN.

This option upgrades the image only in the ASN’s memory.

• Use TFTP to transfer the image to the ASN’s local file system and Local Boot

the ASN.

This option upgrades the image in both the ASN’s local file system and its

memory.

If an ASN fails to boot using a local configuration file, it automatically Netboots

the configuration files and loads them into memory. (You must have the network

set up properly for a successful Netboot to occur.) After a successful Netboot, you

can transfer the configuration file from the network file server to the ASN’s file

system, using TFTP.

Caution:

If a single ASN suffers a corrupted local file system that damages

the image file on the flash card, you cannot boot the ASN. To avoid this

problem, use media partitioning to duplicate the software image file on the

flash card. If the partition you are using to provide the image becomes

corrupted, the other is still available to supply the image. Refer to Configuring

and Managing Routers with Site Manager for detailed information about

media partitioning.

Caution:

If you use TFTP to transfer an upgraded image to an ASN, and an

interruption in the file transfer occurs (for example, if the ASN resets, reboots,

or loses power), the ASN’s file system becomes corrupted and the ASN cannot

boot locally.

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Avaya Connecting ASN Routers to a Network Manual de usuario Pagina 97