D-Link DWL-2600AP User Manual

Configuring Spanning Tree Protocol
D-Link Unified Wired and Wireless Access System
Oct. 2015 Page 246
D-Link UWS User Manual
Bridge Max Age (secs) Specifies the switch maximum age time, which indicates the amount of time
in seconds a bridge waits before implementing a topological change. The valid
range is 6-40, and the value must be less than or equal to (2 * Bridge Forward
Delay) – 1 and greater than or equal to 2 * (Bridge Hello Time +1). The default
value is 20.
Bridge Hello Time (secs) Specifies the switch Hello time, which indicates the amount of time in seconds
a root bridge waits between configuration messages. The valid range is 1-10,
and the default value is 2. The value must be less than or equal to (Bridge Max
Age / 2) – 1. The default hello time value is 2.
Bridge Forward Delay (secs) Specifies the switch forward delay time, which indicates the amount of time
in seconds a bridge remains in a listening and learning state before forwarding
packets. The value must be greater or equal to (Bridge Max Age / 2) + 1. The
time range is from 4 seconds to 30 seconds. The default value is 15.
Spanning Tree Maximum
Hops
Specifies the maximum number of bridge hops the information for a particular
CST instance can travel before being discarded.
BPDU Guard Enable or disable the BPDU Guard.The switches behind the edge ports that
have BPDU guard enabled will not be able to influence the overall topology.
Using the BPDU Guard feature can help enforce the domain borders and keep
the active topology be consistent and predictable.
BPUD Filter Enable or disable the BPDU Filter. When BPDU filtering is enabled, the port
drops the BPDUs received.
Spanning Tree Tx Hold Count Configure the maximum number of BPDUs the bridge is allowed to send
within the hello time window.The default value is 6.
Bridge Identifier The bridge identifier for the CST. It is made up using the bridge priority and the
base MAC address of the bridge.
Time Since Topology Change Displays the total amount of time since the last topographic change. The time
is displayed in hour/minute/second format, for example, 5 hours 10 minutes
and 4 seconds.
Topology Changes Counts Displays the total amount of state changes that have occurred.
Topology Change Indicates whether a topology change is in progress on any port assigned to the
CST. The possible values are True or False.
Designated Root Displays the bridge identifier of the root bridge, which is made up from the
bridge priority and the base MAC address of the bridge.
Root Path Cost Displays the cost of the path from this bridge to the designated root.
Root Port Indicates the root port of the selected instance.
Max Age Shows the path Cost to the Designated Root for the CST.
Forward Delay Shows the derived value of the Root Port Bridge Forward Delay parameter.
Hold Time Indicates the minimum time between transmission of Configuration BPDUs.
CST Regional Root Shows the priority and base MAC address of the CST Regional Root.
CST Path Cost Shows the path Cost to the CST tree Regional Root.
Table 133: Spanning Tree CST Configuration/Status Fields (Cont.)
Field Description

D-Link DWL-2600AP Specifications

General

Networking standards	IEEE 802.3af
Ethernet LAN data rates	10, 100 Mbit/s
Maximum data transfer rate	300 Mbit/s
Internal	Yes
LED indicators	Power, Stand-by, Status, WAN, WLAN
WAN connection	Ethernet (RJ-45)
Ethernet LAN (RJ-45) ports	1
Security algorithms	WEP, WPA, WPA2
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 90 %

Weight and Dimensions

Width	160 mm
Height	45 mm
Weight	240 g
Dimensions (WxDxH)	160 x 160 x 45 mm