ExtremeSwitching (EXOS)

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Asic to port allocation for X870 switch

  • 1.  Asic to port allocation for X870 switch

    Posted 01-16-2018 13:10
    I am trying to understand how the 96 ports of teh x870 are allocated to the asics.

    We currently have 32 port switches ( x650 ) and basically I do not want to port over the standard configuration of the existing switch , if the first 24 ports are serviced by the first asic ..


  • 2.  RE: Asic to port allocation for X870 switch

    Posted 01-17-2018 06:18
    Hello Rod,

    X870 platform is built on a one ASIC, X650 has 2 ASICs.
    Ports are mapped as following:

    X650-24x(SS).1 # debug hal run platform portmap Slot: 1 CardType: X650-24x(SS) ModId Unit(G/L) PIQ Ports (FrontPanelPort - PIQPort) 0 1/0 56821-0 1-5 2-6 3-7 4-8 5-9 6-10 7-15 8-16 9-17 10-18 11-19 12-20 1 2/1 56821-1 13-5 14-6 15-7 16-8 17-9 18-10 19-15 20-16 21-17 22-18 23-19 24-20 25-25 26-26 27-27 28-28 X870-96x-8c.23 # debug hal run platform portmap Slot: 1 CardType: X870-96x-8c ModId Unit(G/L) PIQ Ports (FrontPanelPort - PIQPort) 0 0/0 56960-0 1-34 2-35 3-36 4-37 5-38 6-39 7-40 8-41 9-42 10-43 11-44 12-45 13-46 14-47 15-48 16-49 17-50 18-51 19-52 20-53 21-54 22-55 23-56 24-57 25-58 26-59 27-60 28-61 29-62 30-63 31-64 32-65 33-68 34-69 35-70 36-71 37-72 38-73 39-74 40-75 41-76 42-77 43-78 44-79 45-80 46-81 47-82 48-83 49-84 50-85 51-86 52-87 53-88 54-89 55-90 56-91 57-92 58-93 59-94 60-95 61-96 62-97 63-98 64-99 65-102 66-103 67-104 68-105 69-106 70-107 71-108 72-109 73-110 74-111 75-112 76-113 77-114 78-115 79-116 80-117 81-118 82-119 83-120 84-121 85-122 86-123 87-124 88-125 89-126 90-127 91-128 92-129 93-130 94-131 95-132 96-133 97-1 98-2 99-3 100-4 101-5 102-6 103-7 104-8 105-9 106-10 107-11 108-12 109-13 110-14 111-15 112-16 113-17 114-18 115-19 116-20 117-21 118-22 119-23 120-24 121-25 122-26 123-27 124-28 125-29 126-30 127-31 128-32[/code][/code]


  • 3.  RE: Asic to port allocation for X870 switch

    Posted 01-18-2018 13:37
    Interesting, so there is no benefit what so ever , of splitting port across the 96 10G preesentations.( 24 Port)

    Im a little confused by the output 1-34 what does that actually mean ..



  • 4.  RE: Asic to port allocation for X870 switch

    Posted 01-19-2018 06:30
    That is means
    "FrontPanelPort - PIQPort" == "1-34"

    Best Regards,
    Nikolay


  • 5.  RE: Asic to port allocation for X870 switch

    Posted 01-26-2018 12:13
    Ok moving on .

    Each port speed licence ( 17830 ) upgrades 6 QSFP ports to support 10-100 Gbit , max 4 licences per switch. So thats the first 24 ports covered ( 96 ports )

    So can I assume ( not a good thing to do ) :

    That the asic has multiple processors, one of those processor supports/controls 6 QSFP ports aka licence !!!

    If not why do we licence 6 ports , whats the logic.

    The main reason for all these question , is to install the switches , and connect the ports , so that in a few years , nobody can say we made the wrong design decisions.