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15 Cards in this Set
- Front
- Back
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Which Etherchannel Protocol is an IEEE standard
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LACP.
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What are the different modes that can be used to configure PagP?
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Desirable and Auto
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What are the different modes of LACP?
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Active and Desirable.
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If an interface is configured as desirable what will the other end need to be configured as in order to ensure the Etherchannel will form?
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Desirable or Auto.
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If an interface is configured as passive what will the other side need to be configured as in order to ensure the channel forms?
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Active
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What must be the same on all the physical ports in order for an etherchannel to form?
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All ports must support etherchannel, speed and duplex must all be the same, span cannot be configured on any port, vlan's must match and if configuring L3 etherchannel the physical ports must be "no switchport"
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What is the best order of operation to configure etherchannel?
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1. interface range <interfaces>
2. shutdown 3. "no switchport" for (L3) 4. channel-group <x> mode <x> 5. interface port-channel <x> 6. trunking configuration if trunk 7. Int pox ip address if layer-3 8. interface range <x> 9. no shutdown |
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What are the Cisco Proprietary commands for Etherchanneling and what do they do?
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Desirable - initiates etherchanneling.
Auto - will channel if other side requests. |
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What are the IEEE protocol commands to configure an etherchannel and how do they behave?
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Active - initiates connection.
Passive - will channel if requested bu other side. |
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What is the default load balancing with etherchannel?
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Load Balancing on source mac.
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What is the purpose of the "lacp port-priority priority-value" command?
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The lower the priority, the more likely that the interface will be used for LACP transmission (if more than the allowed interfaces re configured).
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What is the purpose of the "lacp system-priority priority-value" command?
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The switch with the lower system priority value determines which links between LACP partner switches are active and which
are in the standby for each LACP EtherChannel. |
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Which Link in an Etherchannel carries the STP BPDU?
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The lowest number port.
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What is the purpose of the "channel-protocol" command?
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To ensure that only the named protocol can be used.
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What command displays information about the etherchannel, ports used within the channel and the status of the ports?
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show etherchannel sumary.
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