Conference netcad::hub_mgnt

4205.0. "VLAN, DS900EF" by BPSERX::BPSORA::KIRALY (x) Fri Feb 07 1997 09:11

Hi!

At a customer site the following VLAN network worked fine for two month:

         DS900EF                                                    DS900EF

        FDDI           1  -------------------------------  1  FDDI
        Default       5                                             2  Default
        Vlan  A       3                                             3  Vlan A
        Vlan  A       2                                             5  Vlan A
        Vlan  A       7                                             6  Vlan A
        Vlan  B       4                                             4  Vlan B
        Vlan  B       6                                             7  Vlan B

Yesterday one of the switches stopped because of a power cut, and, when the 
power came again, the communication between the switches, AND the 
communication between ports in one VLAN group at one site crashed. It 
seemed as if all ports would be in different VLANs and default VLAN wouldn't 
exist as well. (Customer doesn't have CV VLAN and MC Mgr at all, so they 
couldn't misconfigure anything)

All switch configuration settings which can managed with CV MC Mgr were as 
before. We couldn't check the VLAN configuration because we didn't have 
the proper VLAN database.  

So we had to factory reset and reconfigure the switches. 

My questions:

 1.  Is it possible that VLAN configurations of DS900EF  are demaged after a power cut?

 2.  Is it  possible to get existing VLAN configuration from a switch without VLAN database?  If no, is this 
      function  planned? 

 3.  Does CV Recovery Mgr store/restore the VLAN configuration of switches?

Thanks, 

Endre

    I asked one of the clearVISN engineers about your 3rd question,
    "Does CV Recovery Mgr store/restore the VLAN configuration
     of switches."
    
    Here is the reply:
    
    "clearVISN V2.0 Recovery Manager will backup and restore
    all read-write VLAN parameters, on a per-device basis,
    for the following devices:
    
    Devices
    ---------------
    DECswitch900EF
    DECswitch900FO
    PEswitch900TX
    
    VNswitch family
    
    Note: the VNswitch family of devices use the new DEC Bridge Group VLAN
    MIB. The DECswitch family of devices support the old DEC port-based
    VLAN
    MIB.
    
    As of this writing, the VNswitch900EE, EA, EF, and EX will be supported
    in clearVISN Recovery Manager V2.0 (and have VLAN support).