ccna scaling networks chapter 4
show etherchannel port-channel
This command shows the list of ports that are involved in the port channel and the time since the ports were bundled
The remaining two interfaces continue to load balance traffic.
A network administrator configured an EtherChannel link with three interfaces between two switches. What is the result if one of the three interfaces is down?
It supports IPv6 and IPv4 addressing.
A network administrator is analyzing first-hop router redundancy protocols. What is a characteristic of VRRPv3?
HSRP uses active and standby routers.
A network administrator is analyzing the features that are supported by different first-hop router redundancy protocols. Which statement describes a feature that is associated with HSRP?
GLBP allows load balancing between routers.
A network administrator is analyzing the features that are supported by different first-hop router redundancy protocols. Which statement is a feature that is associated with GLBP?
SW2(config-if-range)# channel-group 1 mode active
A network administrator is configuring an EtherChannel link between switches SW1 and SW2 by using the command SW1(config-if-range)# channel-group 1 mode passive. Which command must be used on SW2 to enable this EtherChannel?
R1(config-if)# ip address 192.168.1.100 255.255.255.0 R1(config-if)# standby 1 ip 192.168.1.1 R1(config-if)# standby 1 priority 255 R1(config-if)# standby 1 preempt R1(config-if)# no shutdown
A network administrator would like to ensure that router R1 is always elected the active router for an HSRP group. Which set of commands would ensure the required results?
S1-passive and S2-active
An EtherChannel link using LACP was formed between two switches, S1 and S2. While verifying the configuration, which mode combination could be utilized on both switches?
grouping multiple physical ports to increase bandwidth between two switches
As the network administrator you have been asked to implement EtherChannel on the corporate network. What does this configuration consist of?
virtual
In FHRP operation, two or more routers are represented as a single _____________________ router.
The channel group should be configured as a trunk on each switch. The two interfaces on each of the switches belong to different VLANs.
Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. What are two reasons why the ping messages that are issued from Laptop0 towards Laptop1 are failing? (Choose two.)
the virtual IP address and the virtual MAC address for the HSRP group 1
Refer to the exhibit. A network administrator configured routers R1 and R2 as part of HSRP group 1. After the routers have been reloaded, a user on Host1 complained of lack of connectivity to the Internet The network administrator issued the show standby brief command on both routers to verify the HSRP operations. In addition, the administrator observed the ARP table on Host1. Which entry should be seen in the ARP table on Host1 in order to gain connectivity to the Internet?
The EtherChannel bundle is not working. One of the ports on S2 was not configured correctly.
Refer to the exhibit. A network administrator has decided that an EtherChannel between ports 0/1 and 0/2 on switches S1 and S2 would help performance. After making the configuration, the administrator notices no performance gain. Based on the output that is shown, what two possible assumptions could a network administrator make? (Choose two.)
PAgP
Refer to the exhibit. A network administrator is reviewing the configuration of switch S1. Which protocol has been implemented to group multiple physical ports into one logical link?
The EtherChannel is not functional.
Refer to the exhibit. A network administrator issued the show etherchannel summary command on the switch S1. What conclusion can be drawn?
192.168.2.100
Refer to the exhibit. A network engineer is troubleshooting host connectivity on a LAN that uses a first hop redundancy protocol. Which IPv4 gateway address should be configured on the host?
The EtherChannel was not configured with the same allowed range of VLANs on each interface.
Refer to the exhibit. An EtherChannel was configured between switches S1 and S2, but the interfaces do not form an EtherChannel. What is the problem?
The EtherChannel is in use and functional as indicated by the SU and P flags in the command output.
Refer to the exhibit. Based on the command output shown, what is the status of the EtherChannel?
The router is currently forwarding packets.
Refer to the exhibit. What statement is true about the output of the show standby command?
EtherChannel
Refer to the exhibit. Which switching technology would allow data to be transmitted over each access layer switch link and prevent the port from being blocked by spanning tree due to the redundant link?
EtherChannel
Refer to the exhibit. Which switching technology would allow each access layer switch link to be aggregated to provide more bandwidth between each Layer 2 switch and the Layer 3 switch?
show etherchannel summary
This command is used to check what ort channels are configured on a switch
show interfaces port-channel 1
This command shows information about the reliability of the port channel
show interfaces fa0/2 etherchannel
This command shows information about the status of a port that is involved in the Etherchannel
Configuring the EtherChannel interface provides consistency in the configuration of the physical links. Spanning Tree Protocol views the physical links in an EtherChannel as one logical connection.
What are two advantages of EtherChannel? (Choose two.)
source IP to destination IP source MAC to destination MAC
What are two load-balancing methods in the EtherChannel technology? (Choose two.)
Shut down each of the affected interfaces.
What is a best practice to use before beginning an EtherChannel implementation?
The allowed range of VLANs must be the same on both switches.
What is a requirement to configure a trunking EtherChannel between two switches?
allows automatic formation of EtherChannel links
What is an advantage of using LACP?
It provides a continuous network connection when a router fails.
What is the purpose of HSRP?
on
When EtherChannel is configured, which mode will force an interface into a port channel without exchanging aggregation protocol packets?
port channel
When EtherChannel is implemented, multiple physical interfaces are bundled into which type of logical connection?
passive
When a range of ports is being configured for EtherChannel, which mode will configure LACP on a port only if the port receives LACP packets from another device?
switch 1 set to desirable; switch 2 set to desirable.
Which PAgP mode combination will establish an EtherChannel?
interface range GigabitEthernet 0/4 - 5
Which command will start the process to bundle two physical interfaces to create an EtherChannel group via LACP?
SW1: on SW2: on
Which mode configuration setting would allow formation of an EtherChannel link between switches SW1 and SW2 without sending negotiation traffic?
VRRPv2
Which nonproprietary protocol provides router redundancy for a group of routers which support IPv4 LANs?
It is made by combining multiple physical links that are seen as one link between two switches.
Which statement describes a characteristic of EtherChannel?
A trunked port can be part of an EtherChannel bundle.
Which statement describes an EtherChannel implementation?
It is Cisco proprietary.
Which statement is true regarding the use of PAgP to create EtherChannels?
VLAN memberships of the interfaces that are used for EtherChannel speed of the interfaces that are used for EtherChannel duplex settings of the interfaces that are used for EtherChannel
Which three options must match in order to establish an EtherChannel between two directly connected switches? (Choose three.)
desirable auto
Which two channel group modes would place an interface in a negotiating state using PAgP? (Choose two.)
speed VLAN information
Which two parameters must match on the ports of two switches to create a PAgP EtherChannel between the switches? (Choose two.)
Port Aggregation Protocol Link Aggregation Control Protocol
Which two protocols are used to implement EtherChannel? (Choose two.)