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AT-TQ2403 Management Software User's Guide 289
SNM
P Traps
SNMP traps enable the asynchronous communication from network devices to managed agents. Setting
SNMP traps saves on network resources and eliminates redundant SNMP requests.
SSID
The Service Set Identifier (SSID) is a thirty-two character 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) is 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 are 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
STP 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 Basic Rate Set.
SVP
SpectraLink Voice Priority (SVP) is a QoS approach to Wi-Fi deployments. SVP is an open specification that
is compliant with the IEEE 802.11b standard. SVP minimizes delay and prioritizes voice packets over data
packets on the Wireless LAN, thus increasing the probability of better network performance.