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This chapter provides information on the Cisco Server Suite 1000 enhanced TCP/IP server applications. The information is organized into the following sections:
http://www.cisco.com. For more information, see the chapter "Documentation" at the end of the catalog.
The Cisco Server Suite 1000 is a suite of enhanced TCP/IP server applications that are easily managed and configured with a graphical user interface. These servers, DNS, DHCP, BOOTP, TFTP, NTP, and Syslog are the most common TCP/IP servers used in building and maintaining TCP/IP networks. With the Cisco Server Suite 1000 administrators can now get a consistent level of network services across both UNIX and Windows NT with an easy-to-use graphical user interface.
The Cisco Server Suite 1000 is designed for the following applications:
The Cisco DHCP server allows organizations to use DHCP in a large switched network. The depletion of IP addresses on the Internet has forced organizations to use classless inter-domain routing (CIDR) blocks or groups of Class C networks to build physical networks with more than 256 nodes. This has created a problem for network administrators who want to use DHCP on a large switched network with more than 256 nodes.
Organizations building large switched networks with TCP/IP assign multiple logical IP networks on a single physical switched network. At the same time organizations want to take advantage of DHCP to dynamically configure a large number of PCs on their network. Existing DHCP servers, including the Microsoft DHCP shipping in Windows NT, do not support creating address pools with multiple logical IP networks on a single physical network. The Cisco DHCP server supports address pools that contain multiple logical networks on the same physical network.
Although Microsoft includes a TCP/IP stack with Windows NT operating system, many critical TCP/IP services are missing from Windows NT. The Cisco Server Suite 1000 enhances Windows NT by providing services or replacing Windows NT existing services with enhanced services. These services include a DHCP server that also supports BOOTP, a DNS server for domain name service, a TFTP server for booting network devices, NTP for synchronizing time on a network, and Syslog for remotely logging errors from a network device.
Configuring and Managing Cisco Internetwork Hardware
The Cisco Server Suite 1000 provides networking services on UNIX platforms and Windows NT for network managers building networks based on Cisco internetworking hardware. Network managers building networks based on Cisco Internetworking hardware need support for networking services such as BOOTP, TFTP, NTP, and Syslog.
BOOTP provides the initial configuration information such as the IP address, default router and TFTP server. An NTP server provides time synchronization. TFTP servers load binary images, including Cisco IOS software and configuration files to network devices including Cisco routers and switches. A Syslog server is used for logging error messages from network devices over the network. All of these services are easily configured with a graphical user interface.
Table 293 provides a summary of the Cisco Server Suite 1000 features and benefits.
Table 293 : Cisco Server Suite 1000 Summary of Features
| Characteristic | Description |
|---|---|
| DHCP dynamically updates DNS | Synchronizes DNS and DHCP information |
| DHCP address pools with multiple logical subnets | Uses DHCP in large switched network |
| DHCP server supports BOOTP | Uses one server to manage BOOTP and DHCP |
| TFTP server | Configures network devices over network |
| NTP server | Synchronizes time on all machine |
| Syslog server | Logs errors to a central location |
| Graphical configuration tool | Easier to manage TCP/IP services |
| Supports Windows NT | Eliminates need for UNIX servers |
Enhanced TCP/IP Services for Windows NT and UNIX
The Cisco DNS/DHCP Manager ships additional network services used to efficiently maintain a TCP/IP network. A DNS server provides name service, NTP provides times synchronization, TFTP is provided to load binary images and configuration files to network devices including routers, and a Syslog server is provided for logging error messages from network devices over the network. All of these services can be configured with an easy-to-use graphical user interface.
TCP/IP Network Easier to Configure
The DHCP protocol allows managers to add new nodes to a network without statically defining IP addresses for every node. Nodes, particularly PCs, use the DHCP protocol to dynamically get configuration information, including the IP address, domain name, default router, and subnet mask from a DHCP server.
The Cisco DHCP server dynamically updates DNS with the domain name and the IP address allocated to the DHCP client. When the DHCP server creates an address pool, it creates names for each address in the pool and updates DNS with the new names. This requires the Cisco DNS/DHCP Manager.
The Cisco Server Suite 1000 provides a GUI-based management tool to configure all of the services provided. This is much easier to use than the existing services provided by the operating system vendor that must be configured by editing text-based configuration files.
DHCP Server in a Switched Network
Today many organizations are building large, flat networks with switching and routing technology. This has caused problems with the deployment of DHCP and the use of multiple logical networks on the same physical network. The Cisco DHCP server can combine pools of IP address from multiple networks in to a single large pool of addresses.
The Cisco Server Suite 1000 includes the following servers:
The Cisco DNS/DHCP Manager is available for the following platforms:
Table 294 lists the product numbers you can use to order the Cisco Server Suite 1000.
Table 294 : Cisco Server Suite 1000 Product Numbers
| Description | Product Numbers |
|---|---|
| Cisco Server Suite 1000, 1 CPU | SS1000-1 |
| Cisco Server Suite 1000, 5 CPUs | SS1000-5 |
| Cisco Server Suite 1000, 10 CPUs | SS1000-10 |
| Cisco Server Suite 1000, 25 CPUs | SS1000-25 |
| Cisco Server Suite 1000, 50 CPUs | SS1000-50 |
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