Quiz LAN Switching Link Aggregation
The remaining two interfaces continue to load balance traffic.
A network administrator configured an EtherChannel link between two switches with three interfaces aggregated on each switch. What will happen to the link if one of the three interfaces fails? The EtherChannel link will go down. One interface becomes an active link for data traffic and the other becomes a backup link. The remaining two interfaces become separate links between the two switches. The remaining two interfaces continue to load balance traffic.
SW2(config-if-range)# channel-group 1 mode desirable
A network administrator used the command SW1(config-if-range)# channel-group 1 mode auto while configuring an EtherChannel link between switches SW1 and SW2. Which command must be used on SW2 to enable this EtherChannel? SW2(config-if-range)# channel-group 1 mode desirable SW2(config-if-range)# channel-group 1 mode on SW2(config-if-range)# channel-group 1 mode passive SW2(config-if-range)# channel-group 1 mode active
Po1 is not functional.
Refer to the exhibit. A network administrator entered the show etherchannel summary command on switch S1. What resolution can be drawn? he port aggregation protocol PAgP is misconfigured. FastEthernet ports Fa0/1 and Fa0/2 do not join the EtherChannel. Po1 is not functional. P01 is suspended.
Configure SW1 EtherChannel mode to desirable.
Refer to the exhibit. A network administrator has configured an EtherChannel link between switch SW1 and switch SW2. When verifying the configuration, the administrator discovers the EtherChannel link fails to establish. What does the administrator need to change in the configuration to correct the problem? Configure SW1 EtherChannel mode to desirable. Configure SW2 EtherChannel mode to auto. Configure SW1 EtherChannel mode to on. Configure SW2 EtherChannel mode to on.
No protocol was used to to negotiate the EtherChannel link
Refer to the exhibit. On the basis of the output that is shown, what can be determined about the EtherChannel Po1? No protocol was used to to negotiate the EtherChannel link. The EtherChannel bundle is operating at both Layer 2 and Layer 3. The EtherChannel Po1 is down. Two Fast Ethernet ports are used to form the EtherChannel.
Traffic cannot be sent to two different switches through the same EtherChannel link.
Refer to the exhibit. The administrator tried to create an EtherChannel between SW1 and SW2 and another EtherChannel between SW1 and SW3 via the commands that are shown. All switches are Layer 3 switches. The attempt was unsuccessful. What is the problem? Traffic can only be sent to two different switches if EtherChannel is implemented on Fast Ethernet interfaces. Traffic can only be sent to two different switches if EtherChannel is implemented on Layer 2 switches. Traffic cannot be sent to two different switches through the same EtherChannel link. Traffic cannot be sent to two different switches, but only to two different devices like an EtherChannel-enabled server and a switch.
The Po1 EtherChannel link is configured not to use negotiation. Po1 is a routed port.
Refer to the exhibit. What two statements are correct regarding the EtherChannel status of the switch DSW-2? (Choose two.) The Po1 EtherChannel link is configured not to use negotiation. The Po2 EtherChannel link is configured not to use negotiation. All EtheAll the EtherChannel links are configured not to use negotiation. The Po3 EtherChannel link is configured not to use negotiation. Po1 is a routed port. Po2 is a routed port.
It allows the use of multivendor devices. It allows directly connected switches to negotiate an EtherChannel link.
What are two advantages of using LACP? (Choose two.) It allows the use of multivendor devices. It decreases the amount of configuration that is needed on a switch. It eliminates the need for configuring trunk interfaces when deploying VLANs on multiple switches. It provides a simulated environment for testing link aggregation. It allows directly connected switches to negotiate an EtherChannel link.
on
Which EtherChannel configuration mode will force an interface into a port-channel without exchanging aggregation protocol packets? on auto active desirable
active passive
Which of the following channel-group modes would set an interface to negotiate a Port-channel using LACP? (Choose two.) active on auto desirable passive
auto desirable
Which of the following channel-group modes would set an interface to negotiate a Port-channel using PAgP? (Choose two.) on passive auto active desirable
A failing interface on one side of the link will not be discovered by the other side of the link.
Which of the following is a drawback when using a statically configured Etherchannel link between 2 switches that aggregates 4 interfaces into each Port-channel? An even number of aggregated interfaces perform less well than an odd number of interfaces when statically configured. The link takes more time to become active. A failing interface on one side of the link will not be discovered by the other side of the link. The link would have lower bandwidth compared with a link that was automatically negotiated.
All the interfaces need to be working in the same duplex mode.
Which of the following is required to be able to configure EtherChannel between to switches? All the interfaces need to be working in the same duplex mode. The Port-channel interface number must be the same on both sides of the link. The same interfaces (i.e Gig0/1, Gig0/2, etc) must be used on both sides of the link. All interfaces need to be assigned to different Trunks.
The same negotiation protocol must be used on both ends.
Which of the following is required to be able to configure EtherChannel between to switches? The interfaces that are involved need to be contiguous on the switch. The same negotiation protocol must be used on both ends. Different allowed ranges of VLANs must exist on each end. All the interfaces need to work at the same speed.
It is Cisco proprietary.
Which of the following statements is true regarding the creation of EtherChannels using PAgP? It mandates that an odd number of ports (1, 3, 5, etc.) be used for aggregation. It increases the number of ports that are participating in spanning tree. It requires more physical links than LACP does. It requires full duplex. It is Cisco proprietary.
LACP
Which of the following technologies is an open protocol standard that allows switches to automatically aggregate physical ports into a single logical link? DTP LACP PAgP Multilink Frame relay
A trunked port can be part of an EtherChannel bundle.
Which statement describes an EtherChannel implementation? A trunked port can be part of an EtherChannel bundle. PAgP cannot be used in conjunction with EtherChannel. EtherChannel operates only at Layer 2. EtherChannel can support up to a maximum of ten separate links.
