|
| with the lowest MAC address will then become the root device. |
|
| Enter a value from 0 - 65535. |
|
| Remember that the lower the numeric value, the higher the priority. |
Hello Time | 2 | Time interval (in seconds) at which the root device transmits a |
|
| configuration message. |
|
| The minimum value is 1. |
|
| The maximum value is the lower of 10 or |
|
| [(Max. Message Age / 2) |
Forward Delay | 15 | The maximum time (in seconds) the root device will wait before |
|
| changing states (that is, listening to learning to forwarding). 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 maximum value is 30. |
|
| The minimum value is the higher of 4 or |
|
| [(Max. Message Age / 2) + 1]. |
Max (Message) 20 | The maximum time (in seconds) a device can wait without receiving a | |
Age |
| configuration message before attempting to reconfigure. All device |
|
| ports (except for designated ports) should receive configuration |
|
| messages at regular intervals. Any port that ages out STA information |
|
| (provided in the last configuration message) 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 minimum value is |
|
| the higher of 6 or [2 x (Hello Time + 1)]. |
|
| The maximum value is |
|
| the lower of 40 or [2 x (Forward Delay - 1)]. |
GMRP*1 | Disabled | GARP Multicast Registration Protocol (GMRP) allows network devices |
|
| to register end stations with multicast groups. If GMRP is globally |
|
| enabled for the switch, then you can individually enable or disable |
|
| GMRP for a specific port. See “4.5.4.1 VLAN Port Configuration”. |
|
| IGMP and IGMP Snooping also provide multicast filtering. For |
|
| multilayer mode, the full IGMP protocol set is automatically |
|
| enabled/disabled along with DVMRP. (See “6.4.2 IGMP Protocol”,and |
|
| “4.5.5 Configuring IGMP Snooping”.) |
GVRP | Disabled | GARP VLAN Registration Protocol (GVRP) defines a way for switches |
|
| to exchange VLAN information in order to register VLAN members on |
|
| ports across the network. This function should be enabled to permit |
|
| automatic VLAN registration, and to support VLANs which extend |
WGS3 Layer 3 Switch User’s Manual | - 164 - |