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chain topology

Viewing 7 posts - 1 through 7 (of 7 total)
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  • #55658 Reply
    FLM
    Guest

    Hi,
    Could anyone please explain in a chain topology when a hubsite gets some problem, why it may affect the other sites in the chain?
    Is this related to Abis?
    I would appreciate if you give a senario and discuss about it.

    Thank you very much.

    #55659 Reply
    Kamal
    Guest

    Ya,definately due to abis…
    If u r using microwave as a media,then e1 passing from the hub site will be affected 4 sure…
    Use d protection hop if loop is not fesiable,otherwise fiber will be good alternative…

    #55660 Reply
    FLM
    Guest

    Thanks you very much Kamal.

    #55661 Reply
    FLM
    Guest

    HI,

    Is it possible that a hubsite is down but the dependent sites are working? ( in a chain topology)

    #55662 Reply
    Kamal
    Guest

    Basicaly,the answer is yes,but not always…
    Consider these…
    1.suppose your hub site is directly connected to ur bsc with 16*2m channel. One of d channel is droped at that site,and rest 15 r forwarded…then if the link bet’n bsc n hub site gets down,all depended sites including hub will be down….
    Now,
    2.same 16*2m is connected bet’n bsc n hub..but hub site is getting e1 from another hop having 8*2m (or whatever)..
    Now,in this case if any link gets down,not all depending sites will be down….
    (exceptions r always there…what during d power issue….?!!!)

    #55663 Reply
    FLM
    Guest

    HI KAMAL,
    Thankk you so much for your answer.I got the it.

    #55664 Reply
    FLM
    Guest

    HI,
    I suggest everyone who has experience with Nokia bts, share his experiences in diagnose and troubleshooting of sites. (Mirowave or etc).Decision making very strongly depends on the alarms we see in hubmanager.

Viewing 7 posts - 1 through 7 (of 7 total)
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