Avaya Configuring ATM Half-Bridge Services Instrukcja Użytkownika Pobierz pdf (Strona 25)

ATM Half-Bridge Overview

308611-14.00 Rev 00

1-7

Figure 1-3. How CPE Hosts Request and Receive IP Addresses from the DHCP Server

Dynamically Learning New Bridge Table Entries

The AHB router dynamically learns new bridge entries it receives from CPE

hosts. You can determine the method by which AHB learns these entries by

configuring the auto learning method configuration parameters on the AHB

router. AHB provides the following auto learning methods:

• Unsecure

•Secure

• Both (default)

•None

3. Target DHCP

server transmits

DHCPACK

packet or

DHCPNAK

packet to BootP

relay agent.

4. BootP relay agent

agent transmits

DHCPACK

packet or

DHCPNAK

packet to

remote host.

1. Remote host

broadcasts

DHCPREQUEST

packet.

2. BootP relay

agent forwards

DHCPREQUEST

packet to DHCP

server using the

preferred server

or forwarding

interface method.

AHB router

(BootP relay agent)

DHCP

server

ATM0054A

ATM

ISP1

Corp1

ISP2

Corp2

PC2

PC1

PC2

Remote

host

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 93 94

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