Interlogix IFS NS3502-8P-2S User Manual page 154

•
BPDU Guard
• Point2Point
Buttons
: Click to save changes.
: Click to undo any changes made locally and revert to previously saved values.
By default, the system automatically detects the speed and duplex mode used on each port, and
configures the path cost according to the values shown below. Path cost "0" is used to indicate
auto-configuration mode. When the short path cost method is selected and the default path cost
recommended by the IEEE 8021w standard exceeds 65,535, the default is set to 65,535.
Port Type
Ethernet
Fast Ethernet
Gigabit Ethernet
the administrator or the physical link state of the attached LANs
transits frequently.
If enabled, causes the port to disable itself upon receiving valid
BPDU's. Contrary to the similar bridge setting, the port Edge
status does not affect this setting.
A port entering error-disabled state due to this setting is subject
to the bridge Port Error Recovery setting as well.
Controls whether the port connects to a point-to-point LAN
rather than a shared medium. This can be automatically
determined, or forced either true or false. A transition to the
forwarding state is faster for point-to-point LANs than for shared
media.
Port Type IEEE 802.1D-1998
Ethernet 50-600
Fast Ethernet
10-60
Gigabit 3-10
Ethernet
Table 4-7-1 Recommended STP Path Cost Range
Link Type
Half Duplex
Full Duplex
Trunk
Half Duplex
Full Duplex
Trunk
Full Duplex
Trunk
Table 4-7-2: Recommended STP Path Costs
IEEE 802.1w-2001
200,000-20,000,000
20,000-2,000,000
2,000-200,000
IEEE 802.1D-1998
100
95
90
19
18
15
4
3
154
IFS NS3502-8P-2S User Manual
IEEE 802.1w-2001
2,000,000
1,999,999
1,000,000
200,000
100,000
50,000
10,000
5,000