D-Link AirPremier DWL-2210AP Manual page 180

Glossary
SNMP consists of managed devices and their agents, and a management system. The agents
store data about their devices in Management Information Bases (MIBs) and return this data to
the SNMP management system when requested.
SSID
The Service Set Identifier (SSID) is a thirty-two character alphanumeric key that uniquely identifies
a wireless local area network. It is also referred to as the Network Name.There are no restrictions
on the characters that may be used in an SSID.
Static IP Address
See IP Address.
STP
The Spanning Tree Protocol (STP) an IEEE 802.1 standard protocol (related to network
management) for MAC
in the network created by multiple active paths between client stations. Loops occur when there
multiple routes between access points. STP creates a tree that spans all of the switches in an
extended network, forcing redundant paths into a standby, or blocked, state. STP allows only one
active path at a time between any two network devices (this prevents the loops) but establishes
the redundant links as a backup if the initial link should fail. If STP costs change, or if one network
segment in the STP becomes unreachable, the spanning tree algorithm reconfigures the spanning
tree topology and reestablishes the link by activating the standby path. Without spanning tree in
place, it is possible that both connections may be simultaneously live, which could result in an
endless loop of traffic on the LAN
Subnet Mask
A Subnet Mask is a number that defines which part of an IP address is the network address and
which part is a host address on the network. It is shown in dotted-decimal notation (for example,
a 24-bit mask is shown as 255.255.255.0) or as a number appended to the IP address (for
example, 192.168.2.0/24).
The subnet mask allows a router to quickly determine if an IP address is local or needs to be
forwarded by performing a bitwise AND operation on the mask and the IP address. For example,
if an IP address is
192.168.2.128 and the netmask is 255.255.255.0, the resulting Network address is
192.168.2.0.
The bitwise AND operator compares two bits and assigns 1 to the result only if both bits are 1.
The following table shows the details of the netmask:
IP address 192.168.2.128 11000000 10101000 00000010 10000000
Netmask 255.255.255.0 11111111 11111111 11111111 00000000
Resulting network address 192.168.2.0 11000000 10101000 00000010 00000000
Supported Rate Set
The supported rate set defines the transmission rates that are available on this wireless network.
A station may be able to receive data at any of the rates listed in this set. All stations must be
able to receive data at the rates listed in the
bridges that manages path redundancy and prevents undesirable loops
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Basic Rate Set.