Conference netcad::hub_mgnt

    Henrique,
    
    The PORTswitch 900TP has 32 ports, which can be grouped into up to 6
    separate LANs.
    
    For example, you could put ports 1, 5 and 7 in LAN 1, and ports 10, 11
    and 12 in LAN 2 etc.  These created LANs are called "virtual" LANs, as
    they are defined/configured in software and not dictated by the hardware.
    
    (Compare this to a DECrepeater 900TM, where all 32 ports are always in
    the one LAN.)  
    
    When the PORTswitch 900TP is in a DEChub 900, you can choose whether or
    not to assign each of these "virtual" LANs to a backplane channel.
    
    Does this help?
    Jeannie
    (NPB Tech Support, Sydney) �(���)�
       
        

Jeannie,


It means that :


I can for example, group all 32 port in LAN1, all 32 ports in LAN2......
and so on . All 32 ports in all LAN's ?

Another possibility:

1-  Port 1 in LAN1,LAN2.....LAN6.
    Port 2 in LAN1,LAN2.....LAN6.
    Port 3 in LAN1,LAN2.....LAN6.
               "
               "
               "
    Port 32 in LAN1,LAN2.....LAN6.

Am I correct ?


Henrique

    Henrique,
    
    No, that is not correct.
    
    In the PORTswitch, there can be up to 6 LANs, but each port is
    assigned to only 1 of these 6 LANs.
    
    Think of it this way (to paraphrase Ed Buzzell):
    
    - each port has a "repeater engine"
    
    - each port/repeater engine must be assigned to 1 of the 6
      "LAN engines" in the PORTswitch module
    
    - ports assigned to the same LAN engine become one logical repeater
    
    - LAN engines can be assigned to flexible channels in the backplane.
    
    - the Thinwire bus also has a repeater engine, and is assigned to 1 of
      the 6 LAN engines.
    
    Jeannie

    Ok Jeannie, I understood.
    
    Thank you.
    
    Henrique.
    

I don't understand clearly about virtual LANs.

>>    When the PORTswitch 900TP is in a DEChub 900, you can choose whether or
>>    not to assign each of these "virtual" LANs to a backplane channel.


    1. The PORTswitch 900TP can support only in a DEChub900.
    2. The PORTswitch 900TP can't support with DEChubONE.

Is this correct?

Hitoshi

     >> 2. The PORTswitch 900TP can't support with DEChubONE.
    
    On the contrary, the Portswitch 900TP can be used in the
    DEChub ONE as part of a standalone stackable solution, as well
    as be configured in a DEChub 900 Multiswitch.
    
    Bob 

>    On the contrary, the Portswitch 900TP can be used in the
>    DEChub ONE as part of a standalone stackable solution, as well
>    as be configured in a DEChub 900 Multiswitch.


	Thanks.

	When the PORTswitch is in the DEChub ONE, 
	it supports port-grouping, isn't it?


tag

    The Portswitch 900TP has six internal LANs.  The front-panel ports and
    the AUI port can be randomly assigned to any of the internal LANs, no
    restrictions.  Ports assigned to the same internal LAN operate with
    each other as a single independent repeater.  Ports assigned to
    different internal LANs have no network connection whatsoever.  
    
    The assignment of ports to internal LANs occurs whether the module is
    in a hub or a docking station.  The only difference is the paths the
    internal LANs have to get out of the box.  In the hub, the internal
    LANs can be connected to backplane ethernet flex channels.  In the
    docking station, the only way out of the box is through the front panel
    ports and the AUI port.