Avaya Connecting BayStack AN and ANH Platforms to a Network Manual de usuario descargar pdf (Pagina 42)

Connecting BayStack AN and ANH Systems to a Network

2-4

• 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 AN/ANH 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 AN/ANH 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 AN/ANH needs

them.

Getting these ﬁles individually, rather than getting the entire an.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 AN/ANH 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 AN/ANH 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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Avaya Connecting BayStack AN and ANH Platforms to a Network Manual de usuario Pagina 42