Storm-Control Nexus Environment

Hello,
we want to configure storm-control in our network but we don´t understand the feature in all it´s details.
i understand that the switch can differenitate between broadcast/multicast and unicast by the I/G-Bit (if it 1 or 0). but how does a Nexus 5500 or nexus 7000 differentiate between broadcast and multicast? if the switch only checks the I/G-bit he is not able to determine if broadcast or multicast?
i couldn´t find anything about it in th documentation. can anybody explain the difference?
thx

Hello,
we want to configure storm-control in our network but we don´t understand the feature in all it´s details.
i understand that the switch can differenitate between broadcast/multicast and unicast by the I/G-Bit (if it 1 or 0). but how does a Nexus 5500 or nexus 7000 differentiate between broadcast and multicast? if the switch only checks the I/G-bit he is not able to determine if broadcast or multicast?
i couldn´t find anything about it in th documentation. can anybody explain the difference?
thx

Similar Messages

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    I have seen some peculiar behavior doing PxE builds. I wanted to pick the brain of some experienced network engineers as my research on the internet shows there is a ton of contradictory opinions / philosophies.
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    Hi,
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  • Nexus 5k Throwing Duplex Mismatch error even though Duplex/speed is correct

    Hello Guys
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      description Controller Wireless 5508
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      storm-control broadcast level 80.00
      storm-control multicast level 80.00
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      description Controller Wireless 5508 - Port 1
      switchport mode trunk
      speed 1000
      storm-control broadcast level 80.00
      storm-control multicast level 80.00
      channel-group 124
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      description Controller Wireless 5508 - Port 2
      switchport mode trunk
      speed 1000
      storm-control broadcast level 80.00
      storm-control multicast level 80.00
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      Hardware: 1000/10000 Ethernet, address: 547f.ee33.d031 (bia 547f.ee33.d031)
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      30 seconds output rate 4498096 bits/sec, 1189 packets/sec
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        2055924941 unicast packets  547924 multicast packets  1043625 broadcast pack
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        82164348 jumbo packets  0 storm suppression bytes
        0 runts  0 giants  0 CRC  0 no buffer
        0 input error  0 short frame  0 overrun   0 underrun  0 ignored
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        0 input with dribble  0 input discard
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        342983729 jumbo packets
        0 output errors  0 collision  0 deferred  0 late collision
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        0 Tx pause
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      Hardware: 1000/10000 Ethernet, address: 547f.ee33.d032 (bia 547f.ee33.d032)
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        0 runts  0 giants  0 CRC  0 no buffer
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        0 input with dribble  0 input discard
        0 Rx pause
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        1347189732 unicast packets  337957710 multicast packets  2429529386 broadcas
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        4114676828 output packets  1302894776466 bytes
        308726768 jumbo packets
        0 output errors  0 collision  0 deferred  0 late collision
        0 lost carrier  0 no carrier  0 babble 0 output discard
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    FRMA_BK2_CSN5K_02# sh cdp neighbors interface ethernet 1/11 detail
    Device ID:FRMA_BK2_WLCCS5508_01_100
    System Name:
    Interface address(es):
        IPv4 Address: 10.80.82.240
    Platform: AIR-CT5508-K9, Capabilities: Host
    Interface: Ethernet1/11, Port ID (outgoing port): LAGInterface0/3/1
    Holdtime: 136 sec
    Version:
    Manufacturer's Name: Cisco Systems Inc.  Product Name: Cisco Controller  Product
    Version: 7.0.240.0  RTOS Version: Erro  Bootloader Version: 1.0.1  Build Type:
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    Advertisement Version: 2
    Duplex: half
    Device ID:FRMA_BK2_WLCCS5508_01_100
    System Name:
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        IPv4 Address: 10.80.82.240
    Platform: AIR-CT5508-K9, Capabilities: Host
    Interface: Ethernet1/11, Port ID (outgoing port): GigabitEthernet0/0/2
    Holdtime: 136 sec
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    Version: 7.0.240.0  RTOS Version: Erro  Bootloader Version: 1.0.1  Build Type:
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    Advertisement Version: 2
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    System Name:
    Interface address(es):
        IPv4 Address: 10.80.82.240
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    Interface: Ethernet1/10, Port ID (outgoing port): GigabitEthernet0/0/1
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    (Cisco Controller) >show port summary
               STP   Admin   Physical   Physical   Link   Link
    Pr  Type   Stat   Mode     Mode      Status   Status  Trap     POE    SFPType  
    1  Normal  Forw Enable  Auto       1000 Full  Up     Enable  N/A     1000BaseTX
    2  Normal  Forw Enable  Auto       1000 Full  Up     Enable  N/A     1000BaseTX
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    Hi Grant,
    Thanks for your sugggestions.But however  we Have 6 Controllers, all are having the same setup as this one.
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    System Name:
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        IPv4 Address: 10.80.82.240
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    Version: 7.0.240.0  RTOS Version: Erro  Bootloader Version: 1.0.1  Build Type:
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    System Name:
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        IPv4 Address: 10.80.82.240
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    Interface: Ethernet1/11, Port ID (outgoing port): GigabitEthernet0/0/2
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