This part of the guide provides a description of network administration in the context of the C5 product. It contains information on:
Network components. See Chapter 9, Network Components
Setting up Ethernet. See Chapter 10, Setting Up Ethernet
Setting up PPP. See Chapter 11, Setting Up PPP
IP and the C5 system. See Chapter 12, IP and the C5 System
Network administration commands and daemons. See Chapter 13, Network Administration Commands and Daemons
Configuring IPC. See Chapter 14, Configuring IPC
Configuring VLANs. See Chapter 15, Setting Up VLANs
In the C5 operating system, many network administration tasks are performed during system initialization. The process of how to initialize and configure a C5 system, has already been described in Section 1.3.2, “System Start-up”. This part of the guide focuses on how network initialization fits into overall system initialization, on how to administer the C5 operating system over a network.
In essence, the C5 boot process involves loading the system image, initializing kernel structures and finally starting all boot actors. Network structures are not initialized until after the end of the boot process.
Initializing network structures is the task of the C_INIT( 1M) boot actor. At system initialization, the C_INIT actor loads a special system initialization resource file, sysadm.ini( 4CC), and executes the commands it contains sequentially.
Thus, an important point about sysadm.ini is that among other facilities it should contain all commands needed to set up networking on the C5 target system. The rest of this guide focuses on the commands related to networking setup and on the networking capabilities such commands enable for system administrators of C5.
In terms of networking, sysadm.ini allows you to:
Create network devices and network interfaces.
Execute network administration commands to configure network devices and network interfaces.
Start network administration daemons to manage network interfaces.