ZyXEL Communications VES-1000 - Manual (Page 44)

VES-1000 Series Ethernet Switch
4-6 General, Switch and IP Setup
Figure 4-4 Menu 2.1 Spanning Tree Protocol Setup
Table 4-F Menu 2.1 - Spanning Tree Protocol Setup
FIELD DESCRIPTION EXAMPLE
Spanning Tree
Protocol Press [SPACE BAR] to toggle between Enable and Disable. Disable
Bridge Priority Bridge priority is used in determining the root device, root port and designated
port. The device with the highest priority (lowest numeric value) becomes the
STP root device. If all devices have the same priority, the device with the lowest
MAC address will then become the root device. The allowed range is 0 to 65535.
The lower the numeric value you assign, the higher the priority for this bridge.
32768 (default)
Hello Time This is the time interval in seconds between configuration message generated
by the root device. The allowed range is 1 to 10 seconds. 2 (default)
Max Age This is the maximum time (in seconds) a device waits without receiving a BPDU
before attempting to reconfigure. All device ports (except for designated ports)
should receive BPDUs at regular intervals. Any port that ages out STP
information (provided in the last BPDU) becomes the designated port for the
attached LAN. If it is a root port, a new root port is selected from among the
device ports attached to the network. The allowed range is 6 to 40 seconds. 20 (default)
Forwarding
Delay This is the maximum time (in seconds) a device waits before changing states.
This delay is required because every device must receive information about
topology changes before it starts to forward frames. In addition, each port needs
time to listen for conflicting information that would make it return to a blocking
state; otherwise, temporary data loops might result. The allowed range is 4 to 30
seconds. 15 (default)
Bridge Priority determines the root bridge, which in turn determines Hello Time, Max Age and
Forwarding Delay.
4.2.6 GARP Timer Setup
GARP (Generic Attribute Registration Protocol) allows network devices to register and de-register attribute values
with other GARP participants within a bridged LAN. GARP is a protocol that provides a generic mechanism for
protocols that serve a more specific application, for example, GVRP (GARP VLAN Registration Protocol).
GARP and GVRP are the protocols used to automatically register VLAN membership across switches.
Switches join VLANs by making a declaration. A declaration is made by issuing a Join message using GARP.
Declarations are withdrawn by issuing a Leave message. A Leave All message terminates all registrations. GARP
timers set declaration timeout values.
Menu 2.1 - Spanning Tree Protocol Setup
Spanning Tree Protocol= Disable
Bridge Priority= 32768
Bridge Hello Time(Time (sec)= 2
Bridge Max Age(Age (sec)= 20
Forward Delay(Delay (sec)= 15
Press ENTER to Confirm or ESC to Cancel:
Press Space Bar to Toggle.