Ascend MAX800 Скачать руководство пользователя страница 3

 

Main Configuration Screen

 

3

 

Main Configuration Screen

 

Once the router is selected in the opening screen, and the Quick Start wizard is complete, click on the 
“Open” button to enter the Main Configuration screen. This screen is split, showing all the different 
configuration screens in hierarchical directories on the left, and details of the one selected on the right. 
For configuring a 

 

point to point

 

, or 

 

point to multi-point 

 

dial up network as shown in figure 1, only four 

screens need to be edited. These are addressed individually below.

 

Answer Profile

 

This screen sets parameters for dealing with incoming ISDN calls. Under the Encapsulation tab, we 
recommend you set PPP, MP, and MPP at a minimum. Under the Bandwidth tab, set both the minimum 
and maximum number of channels to the total number of B channels available (8 if 4 BRI lines are in 
use). This will tell the MAX800 that it should use all available bandwidth all the time. 

Since there is only one answer profile on the MAX800, it should be general purpose enough to connect 
to all incoming calls, even if they use different protocols. 

 

Connection Profiles

 

This area is concerned with the details of dialing out using ISDN. It is possible to set up several 
connection profiles that each represent calls to remote sites based on IP routing. For the three-site 
network shown earlier, each site would have two connection profiles defined. Each connection profile 
is referred to by its station name. The 

 

Dial# 

 

field on the General screen is where the destination ISDN 

number should be entered. Remember to start with a “1” followed by the area code and 7-digit number 
for all 64k connections using the NI-1 protocol. In the 

 

Encapsulation

 

 screen, the MPP protocol (also 

known as MP+) is recommended. This is a public domain protocol defined in RFC1934 that adds a 
layer of control on top of the industry standard MP protocol (RFC1717). At connect time, the caller will 
essentially ask the unit called if MPP is available. If it is, the added control features of MPP will be used 
for the call. If not, the call will proceed using the MP protocol. At this time, all Ascend ISDN routers and 
most Cisco ISDN equipment support MPP. Please refer to the topic 

 

Hunt Groups and MPP 

 

presented 

later in this application note for details on some of the advantages of MPP.

Under the 

 

IP

 

 tab of the Connections screen, check both 

 

Enable IP Routing

 

 and 

 

Compress Headers.

 

 

Under Configure Addresses, enter the network address of the remote LAN and the remote subnet mask.

Under the Bandwidth tab of the Connections screen, set 

 

Min. Channels,

 

 

 

Base Channels 

 

and 

 

Max 

Channels

 

 all to the maximum number of B channels available. This will instruct the MAX800 to 

connect using all available channels for routing any IP traffic to the remote LAN, and is the ideal setting 
for transmitting clips using ClipMail. If the router is going to be used for other types of network traffic 
such as E-mail and web access, more sophisticated methods of bandwidth allocation may be used. 
Refer to the 

 

Ascend MAX Network Configuration Guide

 

 for details.

 

IP Routes

 

This screen should be filled in to enable routing of all IP traffic having the remote network address to 
the remote router (gateway). One static route should be set up and enabled for each connection profile. 

 

Slots

 

These screens should be filled in with the seven digit ISDN phone number, along with the 11 digit SPID 
(for NI-1) assigned to the line. The Port Group, Slot, and Trunk Group may all remain zero for this 
example. 

Отзывы: