Configure and View Status

 

 

Table 10. Bridge Configuration (continued)

 

 

 

 

 

 

Type

For Option

Function

 

No.

 

 

 

 

 

 

 

 

9

Image File

Read-only value. This parameter can be configured

 

 

Name

only in the BOOTP configuration file and is acquired

 

 

 

when Boot Mode and Image Load Mode are set to

 

 

 

network. This name must match the name of a file

 

 

 

on the TFTP server in order for an image file download

 

 

 

to occur.

 

 

 

 

 

 

A

Image Load

Specifies how the operational image code is loaded for

 

 

Mode

the Ethernet bridge. The Megabit Modem CRA-C

 

 

 

supports both local and remote loading. Local image

 

 

 

code is contained in flash devices for local loading of

 

 

 

operation code. When loading over the network, use

 

 

 

BOOTP (RFC 951) and TFTP (RFC 783) to obtain

 

 

 

image files.

 

 

 

Set Local (default) to load the image file from the

 

 

 

application sector of the Megabit Modem CRA-C

 

 

 

non-volatile device, if valid. The code is valid if the

 

 

 

CRC calculated on power-up matches the expected

 

 

 

CRC. If it does not, the Megabit Modem CRA-C

 

 

 

attempts to get a new image using the TFTP.

 

 

 

Set Network (with local backup) to attempt to download

 

 

 

the image file over the network. It first issues a

 

 

 

BOOTP request to get the image filename and image

 

 

 

server IP address, then it initiates a TFTP session. If

 

 

 

the BOOTP fails, the TFTP fails, or the downloaded

 

 

 

image is invalid, the image file is loaded using the

 

 

 

local image mode.

 

 

 

If no image is loaded after cycling through the TFTP

 

 

 

process at least five times, the Megabit Modem CRA-C

 

 

 

resets and repeats the process.

 

 

 

 

 

 

B

Packet

Indicates the format used to encapsulate the Ethernet

 

 

Encapsulation

packets over ADSL. Choices are HDLC (default)

 

 

 

and PPP.

 

 

 

 

 

Megabit Modem CRA-C User Manual

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