| T.R | Title | User | Personal Name
 | Date | Lines | 
|---|
| 1727.1 |  | NETCAD::SLAWRENCE |  | Mon Nov 28 1994 16:20 | 27 | 
|  |     
    It is correct that if you factory reset the hub, then any configuration
    information including the read/write community must be re-entered.
    
    After changing the community, you must do a 'normal' reset in order to
    propogate the community to the slots, but your example is incorrect:
    
    1) Factory reset hub
    
                             Hub community is now 'public' 
                             Slots are 'public-X'
    
    2) Change hub community to 'foobar'
    
                             Hub community is now 'foobar'
                             Slots are 'public-X'
    
    3) Reset hub manager
    
                             Hub community is now 'foobar'
                             Slots are 'foobar-X'
    
    Note that the 'foobar-X' community for the slot applies _only_ to SNMP
    operations made through the IP address of the hub; if the module has
    its own IP address, then it's community must be set through it's
    console (as the IP address was), and will default to 'public'.
    
 | 
| 1727.2 | What happens when I do "2 <CR>"? | CGOS01::DMARLOWE | Have you been HUBbed lately? | Mon Nov 28 1994 17:19 | 17 | 
|  |     
>    2) Change hub community to 'foobar'
>    
>                             Hub community is now 'foobar'
>                             Slots are 'public-X'
>    
>    3) Reset hub manager
>    
>                             Hub community is now 'foobar'
>                             Slots are 'foobar-X'
    
    When you reset the hub manager, you will do a (2) Reset with current
    settings.  What effect will this have on a hub with FDDI, 6 Ethernets
    and 400-500 PC's?  Can this be done during the day and not affect
    the users?
    dave
 | 
| 1727.3 | Nit | KEIKI::WHITE | MIN(2�,FWIW) | Mon Nov 28 1994 18:01 | 8 | 
|  |     
    	Re .1
    
    	After changing the community from public to hub1 but before I do a
    reset of the hub itself, doing a community manage current shows
    hub1 for all the slots, not public-x.
    
    					Bill       
 | 
| 1727.4 |  | NETCAD::SLAWRENCE |  | Wed Nov 30 1994 13:22 | 5 | 
|  |     
    That's exactly the problem - HUBwatch is using hub1, but the modules
    are still using public; that's why you need the reset - to propogate
    the correct (hub1) community.
    
 | 
| 1727.5 | And if I do that what happens? | CGOS01::DMARLOWE | Have you been HUBbed lately? | Wed Nov 30 1994 13:49 | 6 | 
|  |     Scott,
    
    What is the affect of doing a "Reset with Current Settings" on a
    hub in full production, ie. 1 FDDI/6 Ethernets"?
    
    dave
 | 
| 1727.6 |  | NETCAD::SLAWRENCE |  | Wed Nov 30 1994 14:19 | 18 | 
|  |     
    A "Reset with Current Settings" on a hub with active backplane channels
    will cause a brief interruption on those channels as the hub
    configures the backplane.
    
    For most connections (repeater - repeater or concentrator -
    concentrator, for example ) it is short enough that few if any end-user
    applications (even LAT :-) will notice.  For bridge backplane
    connections, the bridge sees the port state change and goes back into
    the listen/learn cycle (it can't tell that it was reconnected to the
    same LAN), so the break is at least that long (45 seconds, if I
    remember correctly).
    
    I don't have any measurements of how long the interruption is, and it
    may vary depending on the configuration; probably a nice project in
    there for someone; any volunteers :-) ?
    
    
 | 
| 1727.7 | Hit <CR> and run like hell. | CGOS01::DMARLOWE | Have you been HUBbed lately? | Wed Nov 30 1994 14:34 | 14 | 
|  |     I'll suggest to my customer.  They have 2 switches in the hub, one
    for PE to individual servers and the second one supplies switched
    Ethernet to the floors via a 900FP.  They are supporting 400-500
    PC clients.
    
    I'll ask him if he wants to try a reset during the day and watch
    his reaction.  But maybe he would schedule it over a lunch.  I don't
    want to be there when he does it as the support people already cringe
    everytime I come around.  Personally I think I've been given a bum
    rap.  8^)
    
    Let you know what happens.
    
    dave
 |