Managing over the Network
Any network manager application running Simple Network Management Protocol (SNMP) can manage the Switch 2000 TR, provided the Management Infor- mation Base (MIB) is installed correctly on the man- agement station. SNMP files for all 3Com products are available on the “3Com Bulletin Board Service” in Appendix F.
Network management applications provide their own user interface to the management facilities. 3Com’s Transcend® family of network managers, for instance, have all the facilities for managing the Switch 2000 TR. The Switch 2000 TR supports SNMP over TCP/IP protocol.
IP Addresses
Internet Protocol (IP) addresses are designed using dotted decimal notation, such as n.n.n.n, where n is a number between 0 and 255.
A sample IP address is 192.128.40.120.
IP addresses have two parts:
■The first part of the address (192.128.40 in the example) identifies the network on which the device resides. Network addresses are assigned by international organizations. Each set of network numbers is unique within the context of the Inter- net.
■The second part of the address (.120 in the exam- ple) identifies the device within the network.
Assigning unique device addresses is the responsi- bility of your network organization.
Operating IP in a Closed Network
If you are the manager of a network that has no con- nection to the outside world, you might not need uniquely assigned network addresses. If you are using the IP protocol for internal management of your net- work, you can assign arbitrary addresses, provided each device is unique.
If you decide to use the IP protocol internally we sug- gest using addresses in the 192.100.X.Y, series where X and Y are numbers between 1 and 254.
If you later connect to the outside world, you will have to
A subnet address is a filtering system for IP addresses. We suggest using a general mask such as 255.255.255.0 if you are unsure what mask to use.
Obtaining Network Addresses
Contact one of the following organizations to obtain a valid set of network addresses.
■In the United States
InterNIC Registration Services
505 Huntmar Park Drive
Herndon, VA 22070
Telephone number:
