PairGain 500L, User Manual

Page: 67 / 98

PRELIMINARY Chapter 9: Technical Reference
Megabit Modem 500L Installation Manual 59
PR
EL
IM
IN
A
RY
MIB and Trap Support
Each managed device has configuration, status, and statistical information that defines its
functionality and operational capabilities. These elements make up the MIB for the device being
managed. The MIB defines the kind of information an NMS can retrieve from a managed
device, and the settings an NMS can control in a managed device.
Megabit Modem 500L supports the following MIBs:
• RFC 1213: "Management Information Base for Network Management of TCP/IP-Based
Internet: MIB-II" Supported groups: system, interfaces, IP, ICMP, UDP, and SNMP
groups.
• RFC 1215: "A Convention for Defining Traps for Use with the SNMP" Supported groups:
ColdStart, linkUp, linkDown, and authenticationFailure traps. Link status traps are sent for
events related to Ethernet.
• ADSL MIB
• ATM MIB
• PairGain Agent MIB
• PairGain Tiger MIB
DNS R
ESOLUTION
If you want Domain Name System (DNS) resolution, you need to specify the IP address for a
device to be the DNS resolver. You can also specify another IP address to designate a second
device for a secondary DNS resolver. The DNS device maps human-readable addresses to IP
addresses. A human-readable address is one such as
maggie.copro.company.com
that
contains a host name and domain. The DNS resolver maps that name to the IP address that is a
numeric (four octet) value such as 192.168.30.25 (see
page 39 for the example on how to
configure a DNS address).
TFTP S
ERVER
Trivial File Transfer Protocol (TFTP) is a standard for file transfer. It provides the service with
minimal capability and minimal overhead. TFTP uses UDP for connectionless delivery.