Conference netcad::hub_mgnt

305.0. "DECagen configuration question" by ODIXIE::RICHARDSON (Are we there yet??) Fri Jul 16 1993 17:24

    I'm really sorry to ask this as it should be obvious, but I'm still
    confused...
    
    I've looked at the configuration guide and am a little clearer, but nto
    quite good enough...
    
    My customer has several (about 8 or so) DEChubs throughout their plant. 
    They are purchasing the DECwatch software for a VAXstation to manage
    these.  Most of these hubs have bridges (fiber), though not all of
    them.  The hubs are NOT daisy chained.  They are located on different
    floors/loations throughout.  My questions are as follows:
    
    1.  What's the story on V1.1 of the DECagent?  Are bridges still
    necessary to manage repeaters within a hub.  Can they now manage
    repeaters (90T's and 90C's) as long as the agent is in the hub with 
    the repeaters to be managed or is a bridge still necessary within 
    this hub?
    
    2.  If one agent can manage up to 4 daisy chained hubs, how many non
    daisy chained hubs can it manage?  Most hubs in this location have
    a 90T and a 90C repeater in them which adds up to a max of 182
    devices/hub (in the current config).  Again, each of these has a bridge
    so isit one agent/bridge? or one agent/xx devices?
    
    I know these questions seem rather basic, but basic is what I need.
    
    Thansk for the help
    
    Cindy

    Cindy,
    
    1.  Yes, you still need a bridge to manage repeaters in the hub.
        Direct backplane support for managing repeaters did not make it
        into V1.1 of the agent.  This support is planned for V2.0.
    
    2.  One DECagent can manage up to eight 8-slot DEChub 90s.  However,
        you will need a bridge in each hub to do management of repeaters in
        that hub.  What you will need to do is define a unique set of
        community strings (read-only and read-write) for each hub you want
        the agent to manage.  This can all be done via HUBwatch.  I assume
        that all these hubs are on the same LAN (i.e. no routers between
        hubs)?
    
    ...Roger...

    Thanks - that clears things up.  They are all on the same LAN with no
    routers.  It is, however, a pretty large fiber optic LAN.  I am
    assuming there are no restriction as to the distance limitations of the
    decagents to the hubs that they are managing.  I guess if the LAN is
    operating within fiber limitations, the agents will operate just fine?
    

    .2> decagents to the hubs that they are managing.  I guess if the LAN is
    .2> operating within fiber limitations, the agents will operate just fine?
    
    We certainly hope so!  :-}
    
    ...Roger...