Symbol Technologies WS 2000 - Manual (Page 14)

Layer 3 Routing
DHCP Client and Server
The WS 2000 Wireless Switch can act as a DHCP client on the WAN and each of its three
subnets. It also act as an independent DHCP server on each of the three subnets.
Layer 3 Routing
Overview
The WS 2000 Wireless Switch provides Layer 3 routing support to the Network Address
Translation (NAT) and Firewall modules. Layer 3 refers to a network layer that selects
routes and quality of service based on knowing the address of the neighboring nodes in the
network. This routing provides recognition and forwards incoming messages to the
Transport layer for local host domains.
Routing Information Protocol (RIP) Support
Layer 3 supports RIP, a widely used protocol for managing router information within a self-
contained network or a group of networked LANs.
Using RIP, the WS 2000 Wireless Switch sends a routing table with information containing
all the hosts it is configured to identify to the closest LAN host. The LAN host passes the
information on to the next closest LAN host until all hosts within the network have the
same knowledge of routing paths, a condition referred to as network convergence. Network
components distribute routing table information at preset intervals to maintain convergence.
To route a packet to a specified destination, each host with a router in the network uses the
routing table information to determine the destination host location.
SNMP Management Support
Simple Network Management Protocol (SNMP) is the protocol governing network
management and the monitoring of network devices and their functions. SNMP defines the
method for obtaining information about network operating characteristics and lets
administrators change parameters for routers and gateways.
SNMP uses the Management Information Base (MIB), or formal description of a set of
network objects that represent the switch components, to facilitate network management in
any wireless network environment.
SNMP management features include:
• Allowing gets, or the ability to retrieve data from a remote host given its host name and
authentication information
• Allowing sets, or the ability to modify information on a remote host
• A web-based user interface (UI) for viewing traps, which network entities use to signal
abnormal conditions to management stations. Administrators define trap conditions in
the MIB.
The WS 2000 Wireless Switch provides management support for SNMP versions 1, 2, and
3.
Copyright © 2004 Symbol Technologies, Inc. All Rights Reserved 14
WS 2000 Wireless Switch: 1.0 Date of last Revision: March 2004