D-Link DWL-2200AP Инструкция по эксплуатации онлайн [180/192] 41488

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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 bridges that manages path redundancy and prevents undesirable
loops 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:
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 Basic Rate Set.
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

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