LuxCom OM1004 Скачать руководство пользователя страница 7

Rapid Spanning Tree Protocol (RSTP)

Importance of the Root Node

In RSTP, the 

root node

 is fundamental in determining the final topology of a network - i.e. 

which redundant paths become blocked.  RSTP first determines the root node, then the 
other nodes determine the shortest and fastest path to that root node.  Ideally the root node 
connects directly to equipment (such as a server) which experiences the highest traffic 
volume.  The root node location cannot be controlled when all nodes are in the hardware 
default settings;  however in software configuration mode, the  menu item   

4   Set bridge  

priority  

may be set to a low number (such as 0) which forces that node to be the root node. 

The other nodes may be left in the hardware default mode.

Configuration  Interface

This serial RS232  interface allows the user to configure the RSTP and monitor the 
Ethernet statistics;  its use is optional. The supplied cable must be connected between the 
serial port of a PC and ths interface.  A terminal emulation program must be used on the 
PC.  HyperTerminalTM which comes with the WindowsTM XP operating system is one 
option.

To start  HyperTerminalTM do the following:  
Click on the START icon
Select Programs
Select Accessories
Select Communication
Select HyperTerminal

To configure  HyperTerminalTM do the following: 
Select File
Select properties
On drop-down called connect to 
Select ..................direct to COM1
Select ..................configuration
Bits per Second . .= 38400
Data Bits..............=  8
Parity ...................=  None
Stop Bits..............=  1
Flow control.........=  Hardware
At this point pressing “enter” on the keyboard will bring up the OM1004 management 
menu.

OM1004 Main Menu

The main menu is shown below.

OM1004 Main Menu
1    Ethernet menu
2    Bridge RSTP menu
3    Software menu
:>

 1' selects the Ethernet menu, etc.  Enter displays the current menu.  In a sub-menu, Esc goes back 
one menu level.  

4   

Содержание OM1004

Страница 1: ...0BASE X optical ports One 10 100 1000BASE T port With Rapid Spanning Tree OPERATING MANUAL REV 2 5 April 26 2013 102 WALGREEN ROAD OTTAWA ONTARIO K0A 1L0 Telephone 613 831 7777 Fax 613 831 7778 www lu...

Страница 2: ...tors 1 Dip Switches 2 Rapid Spanning Tree Protocol RSTP 3 Configuration Interface 4 OM1004 Main Menu 4 The main menu is shown below 4 Bridge RSTP Menu 6 Software Menu 7 Specifications 9 Ordering Infor...

Страница 3: ...ry Revision 1 0 Initial release Revision 2 0 new format Revision 2 1 Revision 2 2 Revision 2 3 Revise ALARM LED description Revision 2 4 Update spec for power supply Revision 2 5 auxiliary power suppl...

Страница 4: ...NK has been established with a remote Ethernet port Flashing when data is being transmitted or received STP Spanning Tree Green when the port is forwarding packets in RSTP mode Yellow when the port is...

Страница 5: ...function in its default settings 3 Unused 4 Unused 5 Port alarm 1 Up if port 1 electrical port is a required port See Alarm in the Indicator section 6 Port alarm 2 Up if port 2 optical port is a requ...

Страница 6: ...erred path Alternately the serial Configuration Port on the OM1004 can be used to set the priority of the ports SW2 up however this is best avoided unless the user is familiar with RSTP The following...

Страница 7: ...e user to configure the RSTP and monitor the Ethernet statistics its use is optional The supplied cable must be connected between the serial port of a PC and ths interface A terminal emulation program...

Страница 8: ...w port packet statistics Esc Back 1 Ethernet Status Port 1 2 3 4 Switch Port P1 P4 P6 P5 Type Electrical Optical Optical Optical Media Copper Fiber Fiber Fiber Link Good Yes No No No Auto Negotiation...

Страница 9: ...each item 1 Show bridge status Shows status which applies to all ports on the OM1004 2 Show port status Shows status which applies to individual ports on the OM1004 3 Set default configuration Restor...

Страница 10: ...C which is normally full duplex f Port mode check Causes the bridge to transmit RSTP BPDUs in order to test the hypothesis that non RSTP bridges have been removed from the LAN connected to the port an...

Страница 11: ...tart the Xmodem transfer the user must select the Xmodem protocol and the upload file e g using HyperTerminal s Transfer Send File menu option The OM1004 send C s for thirty seconds This is an indicat...

Страница 12: ...km SC or ST BD 1550 nm TX laser 9 125 m 9 dBm 20 dBm 20 km SC or ST S803 1550 nm laser 9 125 m 0 dBm 23 dBm 80 km SC or ST S1003 1550 nm laser 9 125 m 0 dBm 32 dBm 100 km SC Electrical Data I O level...

Страница 13: ...OT LIABLE FOR CONSEQUENTIAL DAMAGES Repackaging For Shipment Before returning the item paperwork indicating the name department company and telephone number of the sender model and serial number of th...

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