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Comtech EF Data SLM-5650A User Manual

Page 167

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SLM-5650A Satellite Modem

Revision 8

Network Processor (NP) Interface

MN-SLM5650A

8–5

8.5 BPM (Bridge Point-to-Multipoint) Mode

Networks where modems traditionally act as routers – e.g., Vipersat-based satellite communications

systems – and include encryption devices are sometimes incompatible or require difficult and

unwieldy configurations. Additionally, the NP Interface limits the number of allowable route tables.

This, in turn, can limit the overall size of the network, particularly when OSPF (Open Shortest Path

First) dynamic routing protocol is used in the NP Interface.

In order to increase the flexibility and scalability of the satellite network with SLM-5650A

modems, the optional BPM (Bridge Point-to-Multipoint) Mode is a feature available with NP

Interface operation whereby Layer 2 and Layer 3 networks can operate simultaneously. When

BPM Mode is selected, users can operate two independent Layer2 networks and one Layer3

network simultaneously without interfering with each other.

See Appendix E. APPLICATION EXAMPLES for in-depth information about using this

optional FAST Feature.

8.6 Network Processor (NP) HTTP/HTTPS Interface

The remainder of this chapter describes the NP HTTP/HTTPS Interface functionality that not

only integrates a good portion of the SLM-5650A Base Modem HTTP Interface non-secure

operations (outlined in detail in the previous chapter), but also provide operations unique to the NP

HTTP/HTTPS Interface.

8.6.1 HTTP/HTTPS Interface Introduction

The pages for the NP HTTP/HTTPS Interface have been designed to work using either

Microsoft’s Internet Explorer Version 7.0 or higher, or Mozilla Firefox Version 2.0 or higher.

(The examples shown in this chapter use Internet Explorer Version 7.0 – most, but not all, pages

will display properly with Internet Explorer Version 6.0.)

Operation of the Network Processor may be fully monitored and

controlled from the NP HTTP/HTTPS Interface. By rolling the

cursor over the tabs located at the top of each page, the user can

select from the available nested hyperlinks (as shown to the right).

In order to make any Network Processor modifications permanent, all changes made

on any of the NP HTTP/HTTPS Interface pages must be saved before rebooting the

unit.

8.6.2 HTTP/HTTPS Interface Availability via Secure Management Interfaces

Non-secure and secure network management operations are controlled by the Interface Security

Mode setting provided on the Admin | Security page (see Chapter Sect. 8.6.6.2.3 for more

information). Its use is dependent on the options installed in the SLM-5650A Base Modem.