Gateway Conﬁguration Overview

Networking Concepts

Internetworks

Gateway conﬁguration includes both identifying neighbor gateways in each node’s conﬁguration ﬁle and conﬁguring gateway half NIs for nodes that will serve as one half of a gateway half pair. These tasks are described as follows.

Identifying Neighbor Gateways

If you are including gateways in your internet conﬁguration, you may want to modify each node’s conﬁguration ﬁle so that the node is aware of all of its neighbor gateways (gateways on the same link). You accomplish this during conﬁguration of each network interface for which you want to allow communications over the gateway. You will ﬁnd step-by-step instructions for identifying neighbor gateways in each of the link conﬁguration sections of this manual.

An alternative to identifying neighbor gateways in every node’s conﬁguration ﬁle is to conﬁgure a default gateway for the node. Instructions for doing so are included in this manual.

The next pages show several examples of gateway conﬁguration.

Neighbor Gateway Examples

When using NMMGR to conﬁgure any node, you will be entering the identities of all the neighbor gateways into the conﬁguration of the node. The following examples illustrate several gateway conﬁguration scenarios based on the network represented in Figure 2-3.

•Example 1: The node you are conﬁguring may be a non-gateway, such as node D in Figure 2-3.You would need to enter the identities of each of its neighbor gateways, in this case nodes C and E, at the Neighbor Gateways screen. On the Neighbor Gateway Reachable Networks screen, you would also enter the IP addresses of networks 1 and 3 as two of the conﬁgured reachable networks reachable through gateway node C.

•Example 2: The node you are conﬁguring may be a gateway half, such as node E in Figure 2-3.You will still need to enter the identities of the node’s neighbor gateways as you conﬁgure the NI (in this case, node C is the neighbor gateway). You will also need to conﬁgure a gateway half NI for the node, as described under “Conﬁguring a Gateway-Half Pair.”

•Example 3: The node you are conﬁguring may be a full gateway, such as nodes B and C in Figure 2-3.Though full gateways are never actually identiﬁed as such in the conﬁguration process, they too, must know about the other gateways. If you were conﬁguring node C, you would identify nodes B and E and neighbor gateways.

Chapter 2

E3000 MPE/IX, E3000/IX specifications

The HP E3000 series, particularly the E3000/IX and E3000 MPE/IX, represents a significant milestone in the evolution of business computing, developed by Hewlett-Packard (HP) during the late 1970s and early 1980s. These systems were designed to provide robust, reliable, and efficient operation for mid-sized businesses, leveraging the power of the MPE (Multi-Programming Executive) operating system.

One of the main features of the HP E3000 series is its multitasking capability. MPE/IX allows for multiple applications to run concurrently, maximizing the utilization of system resources. This is particularly beneficial for organizations that require simultaneous access to various business applications, ensuring enhanced productivity and efficiency.

The HP E3000/IX architecture is built on a powerful 16-bit or 32-bit microprocessor, enabling it to handle substantial workloads. The system architecture is known for its modular design, which allows for easy upgrades and customization. This flexibility is essential for businesses that need to adapt to changing demands without overhauling their entire computing infrastructure.

Another notable technology incorporated into the HP E3000 series is its support for a range of storage solutions. The E3000 systems were compatible with various disk drives, providing organizations with options for data storage that matched their performance and capacity requirements. Additionally, they featured advanced data management capabilities, such as built-in backup and recovery systems, ensuring that critical business information remained secure and accessible.

Beyond hardware capabilities, HP E3000/IX and MPE/IX systems provide extensive programming support. They included tools for developing custom applications, with support for languages such as COBOL, BASIC, and FORTRAN. This versatility made it easier for businesses to tailor their software solutions to their specific needs, enhancing operational effectiveness.

Networking capabilities were also a significant innovation of the E3000 series. The systems offered robust support for various networking protocols, allowing for seamless integration with other computing environments. This facilitated communication and collaboration within an organization, as well as with external partners and clients.

In summary, the HP E3000/IX and E3000 MPE/IX systems were pivotal in delivering reliable computing power to mid-sized enterprises. With their multitasking operating system, modular architecture, advanced data management, and programming support, these systems provided an adaptable and comprehensive solution for evolving business needs. The legacy of the E3000 series is evident in how it paved the way for modern enterprise computing, focusing on flexibility, scalability, and efficiency.

HP E3000 MPE/IX, E3000/IX manual Gateway Conﬁguration Overview, Identifying Neighbor Gateways

Models: E3000 MPE/IX E3000/IX