Avaya Connecting BayStack AN and ANH Platforms to a Network Manual de usuario descargar pdf (Pagina 35)

Hardware and Software Overview

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7. The AN/ANH stores these addresses, along with the address of the next-hop

router, in random-access memory (RAM).

If both synchronous interfaces receive BOOTP responses, the AN/ANH

assigns the respective IP addresses to each interface.

Getting Kernel Image and Conﬁguration Files

With a known IP address, the AN/ANH can get image and conﬁguration ﬁles.

1. The AN/ANH sends a BOOTP request for the pathnames of a conﬁguration

ﬁle and image kernel.

The router issues the request simultaneously through all synchronous and

Ethernet interfaces that have IP addresses. It issues this request periodically

for about 3 minutes, regardless of whether a cable is connected.

2. A BOOTP server responds to the router’s request with the directory

pathnames (F

igure 1-3).

Figure 1-3. Getting the Pathnames of the Kernel and Conﬁguration Files

The ﬁrst server interface that processes the BOOTP response acts as the TFTP

client in the remaining steps.

Key

BOOTP response

BOOTP request

Corporate backbone

Pathnames

BOOTP

server

AN/ANH

Upstream router

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Avaya Connecting BayStack AN and ANH Platforms to a Network Manual de usuario Pagina 35