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SIMULATION

Use the simulator to perform the following configuration task.

1. Map a single-tagged CVLAN 100 to SVLAN 200 translation on PE

switch interface Eth1/1.

2. Map a double-tagged VLAN packet with an outer CVLAN 100 and an inner dot1q 200 to SVLAN 300 translation on PE switch interface

Eth1/2.

The necessary VLANs and VLAN stacking have already been configured.

A.
see the explanation for all step by step solution with all explanation
A.
see the explanation for all step by step solution with all explanation
Answers
Suggested answer: A

Explanation:

Here are the steps to configure the required VLAN translations on a Dell SONiC switch:

Map a Single-Tagged CVLAN 100 to SVLAN 200 on Interface Eth1/1:

sonic# configure terminal

sonic(config)# interface Ethernet1/1

sonic(config-if-Ethernet1/1)# switchport mode trunk

sonic(config-if-Ethernet1/1)# switchport vlan mapping 100 200

sonic(config-if-Ethernet1/1)# end

sonic# write memory

Map a Double-Tagged VLAN Packet with Outer CVLAN 100 and Inner dot1q 200 to SVLAN 300 on Interface Eth1/2:

sonic# configure terminal

sonic(config)# interface Ethernet1/2

sonic(config-if-Ethernet1/2)# switchport mode trunk

sonic(config-if-Ethernet1/2)# switchport vlan mapping 100 200 300

sonic(config-if-Ethernet1/2)# end

sonic# write memory

Comprehensive Detailed Step by Step Explanation with

Reference:

Enter Configuration Mode:

Access the global configuration mode using the configure terminal command.

Configure Interface Eth1/1:

Enter interface configuration mode for Ethernet1/1 using the command interface Ethernet1/1.

Set the switchport mode to trunk with the command switchport mode trunk.

Configure the VLAN translation using the switchport vlan mapping 100 200 command, which maps CVLAN 100 to SVLAN 200.

Exit the interface configuration mode by typing end.

Save the configuration with write memory.

Configure Interface Eth1/2:

Enter interface configuration mode for Ethernet1/2 using the command interface Ethernet1/2.

Set the switchport mode to trunk with the command switchport mode trunk.

Configure the double-tagged VLAN translation using the switchport vlan mapping 100 200 300 command, which maps packets with outer CVLAN 100 and inner dot1q 200 to SVLAN 300.

Exit the interface configuration mode by typing end.

Save the configuration with write memory.

Dell Technologies Networking - SONiC

Dell Enterprise SONiC Deployment Guide

These steps provide a comprehensive guide to configure VLAN translations on a Dell SONiC switch, ensuring that the specific requirements for single-tagged and double-tagged VLAN mappings are met.

SIMULATION

Create port channel 10 on interfaces Eth 1/11 and 1/12, so that it connects to an already configured switch. A server will be connected on Eth 1/1. Both the server and port channel need VLAN 1 untagged and only VLAN 10 tagged.

Complete the configuration on Switch A.

A.
see the explanation for all step by step solution with all explanation
A.
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Answers
Suggested answer: A

Explanation:

Here are the steps to configure the required port channel and VLAN settings on Switch A:

Enter Configuration Mode:

SwitchA# configure terminal

Create Port Channel 10:

SwitchA(config)# interface port-channel 10

SwitchA(config-if-po10)# switchport mode trunk

SwitchA(config-if-po10)# switchport trunk native vlan 1

SwitchA(config-if-po10)# switchport trunk allowed vlan 1,10

Assign Interfaces Eth 1/11 and Eth 1/12 to Port Channel 10:

SwitchA(config)# interface ethernet 1/11

SwitchA(config-if-eth1/11)# channel-group 10 mode active

SwitchA(config-if-eth1/11)# exit

SwitchA(config)# interface ethernet 1/12

SwitchA(config-if-eth1/12)# channel-group 10 mode active

SwitchA(config-if-eth1/12)# exit

Configure Interface Eth 1/1 for Server Connection:

SwitchA(config)# interface ethernet 1/1

SwitchA(config-if-eth1/1)# switchport mode trunk

SwitchA(config-if-eth1/1)# switchport trunk native vlan 1

SwitchA(config-if-eth1/1)# switchport trunk allowed vlan 1,10

SwitchA(config-if-eth1/1)# end

Save Configuration:

SwitchA# write memory

Comprehensive Detailed Step by Step Explanation with

Reference:

Enter Configuration Mode:

Start by entering the global configuration mode to make changes to the switch configuration.

Create Port Channel 10:

Enter the port channel interface configuration mode using interface port-channel 10.

Set the port channel to trunk mode with switchport mode trunk.

Specify VLAN 1 as the native VLAN (untagged) using switchport trunk native vlan 1.

Allow VLANs 1 and 10 on the trunk with switchport trunk allowed vlan 1,10.

Assign Interfaces Eth 1/11 and Eth 1/12 to Port Channel 10:

Enter interface configuration mode for ethernet 1/11 and ethernet 1/12.

Assign each interface to port channel 10 using the channel-group 10 mode active command.

Exit the interface configuration mode.

Configure Interface Eth 1/1 for Server Connection:

Enter interface configuration mode for ethernet 1/1.

Set the interface to trunk mode with switchport mode trunk.

Specify VLAN 1 as the native VLAN using switchport trunk native vlan 1.

Allow VLANs 1 and 10 on the trunk with switchport trunk allowed vlan 1,10.

Exit the configuration mode.

Save Configuration:

Ensure the configuration is saved so it persists after a reboot using the write memory command.

Dell Technologies Networking - SONiC

Dell Enterprise SONiC Deployment Guide

These steps provide a comprehensive guide to configure a port channel and VLAN settings on Switch A to meet the specified requirements for server and trunk connections.

SIMULATION

VLAN 40 is configured in Switch A with an anycast-address of 192.168.40.254/24. The ARP neighbor suppression is enabled. Use the simulator to create a VTEP named vtep1 and assign an IP address of

10.10.10.1. Map the VNI 400 to VLAN 40.

A.
see the explanation for all step by step solution with all explanation
A.
see the explanation for all step by step solution with all explanation
Answers
Suggested answer: A

Explanation:

Here are the steps to create the VTEP and map the VNI to the VLAN:

Enter Configuration Mode:

SwitchA# configure terminal

Create VTEP Interface:

SwitchA(config)# interface vtep1

SwitchA(config-if-vtep1)# ip address 10.10.10.1/24

SwitchA(config-if-vtep1)# exit

Map VNI 400 to VLAN 40:

SwitchA(config)# vlan 40

SwitchA(config-vlan)# vn-segment 400

SwitchA(config-vlan)# exit

Enable ARP Neighbor Suppression:

SwitchA(config)# interface Vlan40

SwitchA(config-if-Vlan40)# ip address 192.168.40.254/24

SwitchA(config-if-Vlan40)# vxlan arp-suppression

SwitchA(config-if-Vlan40)# exit

Save Configuration:

SwitchA# write memory

Enter Configuration Mode:

Begin by entering the global configuration mode to make changes to the switch configuration.

Create VTEP Interface:

Enter the interface configuration mode for the VTEP interface named vtep1 using interface vtep1.

Assign the IP address 10.10.10.1/24 to the VTEP interface using the ip address command.

Exit the interface configuration mode.

Map VNI 400 to VLAN 40:

Enter the VLAN configuration mode for VLAN 40 using vlan 40.

Map the VNI 400 to VLAN 40 using the vn-segment 400 command.

Exit the VLAN configuration mode.

Enable ARP Neighbor Suppression:

Enter the interface configuration mode for VLAN 40 using interface Vlan40.

Assign the anycast IP address 192.168.40.254/24 to the VLAN interface using the ip address command.

Enable ARP neighbor suppression using the vxlan arp-suppression command.

Exit the interface configuration mode.

Save Configuration:

Save the configuration to ensure the changes persist after a reboot using the write memory command.

Dell Technologies Networking - SONiC

Dell Enterprise SONiC Deployment Guide

These steps provide a comprehensive guide to configure a VTEP and map the VNI to VLAN 40 on Switch A, ensuring the specific requirements for IP addressing and ARP neighbor suppression are met.

SIMULATION

A customer must configure a peer link between two switches in the L2 MC-LAG scenario.

SwitchB has already been configured. Configure the peer link on SwitchA.

Use the following configuration information:

MC-LAG domain 1

VLAN 101

Peer link Port-Channel 100

SwitchA IP: 192.168.1.1/24

SwitchB IP: 192.168.1.2/24

MC-LAG system MAC: 00:00:00:11:11:11

The physical ports to connect the peer switch are Eth 1/5 and Eth 1/6 for each switch.

A.
see the explanation for all step by step solution with all explanation
A.
see the explanation for all step by step solution with all explanation
Answers
Suggested answer: A

Explanation:

Here are the steps to configure the peer link on SwitchA:

Enter Configuration Mode:

SwitchA# configure terminal

Create VLAN 101:

SwitchA(config)# vlan 101

Create Port-Channel 100:

SwitchA(config)# interface port-channel 100

SwitchA(config-if-po100)# switchport mode trunk

SwitchA(config-if-po100)# switchport trunk allowed vlan 101

SwitchA(config-if-po100)# exit

Assign Physical Interfaces to Port-Channel 100:

SwitchA(config)# interface ethernet 1/5

SwitchA(config-if-eth1/5)# channel-group 100 mode active

SwitchA(config-if-eth1/5)# exit

SwitchA(config)# interface ethernet 1/6

SwitchA(config-if-eth1/6)# channel-group 100 mode active

SwitchA(config-if-eth1/6)# exit

Configure MC-LAG Domain 1:

SwitchA(config)# mclag domain 1

SwitchA(config-mclag-domain)# peer-link port-channel 100

SwitchA(config-mclag-domain)# local-ip 192.168.1.1

SwitchA(config-mclag-domain)# peer-ip 192.168.1.2

SwitchA(config-mclag-domain)# system-mac 00:00:00:11:11:11

SwitchA(config-mclag-domain)# exit

Save Configuration:

SwitchA# write memory

Comprehensive Detailed Step by Step Explanation with

Reference:

Enter Configuration Mode:

Begin by entering the global configuration mode to make changes to the switch configuration.

Create VLAN 101:

Create VLAN 101 to be used for the MC-LAG peer link communication.

Create Port-Channel 100:

Enter the port channel interface configuration mode using interface port-channel 100.

Set the port channel to trunk mode with switchport mode trunk.

Allow VLAN 101 on the trunk with switchport trunk allowed vlan 101.

Exit the port channel interface configuration mode.

Assign Physical Interfaces to Port-Channel 100:

Enter interface configuration mode for ethernet 1/5 and assign it to port channel 100 using the channel-group 100 mode active command.

Exit the interface configuration mode.

Repeat the same steps for ethernet 1/6.

Configure MC-LAG Domain 1:

Enter the MC-LAG domain configuration mode using mclag domain 1.

Specify the peer link port channel with peer-link port-channel 100.

Configure the local IP address as 192.168.1.1 using local-ip 192.168.1.1.

Configure the peer IP address as 192.168.1.2 using peer-ip 192.168.1.2.

Set the MC-LAG system MAC address using system-mac 00:00:00:11:11:11.

Exit the MC-LAG domain configuration mode.

Save Configuration:

Save the configuration to ensure the changes persist after a reboot using the write memory command.

Dell Technologies Networking - SONiC

Dell Enterprise SONiC Deployment Guide

These steps provide a comprehensive guide to configure the peer link for an MC-LAG scenario on SwitchA, ensuring the specific requirements for IP addressing, VLAN configuration, and port channel setup are met.

SIMULATION

Configure a VRF called 'VrfGreen' and the static route in it to network 172.16.128.64/28 through next-hop 10.10.10.1. Set an administrative distance of 213.

A.
see the explanation for all step by step solution with all explanation
A.
see the explanation for all step by step solution with all explanation
Answers
Suggested answer: A

Explanation:

Here are the steps to configure the VRF and the static route:

Enter Configuration Mode:

sonic# configure terminal

Create VRF 'VrfGreen':

sonic(config)# ip vrf VrfGreen

Configure the Static Route:

sonic(config)# ip route vrf VrfGreen 172.16.128.64/28 10.10.10.1 213

Save Configuration:

sonic# write memory

Comprehensive Detailed Step by Step Explanation with

Reference:

Enter Configuration Mode:

Begin by entering the global configuration mode to make changes to the switch configuration.

Create VRF 'VrfGreen':

Use the command ip vrf VrfGreen to create a new VRF named 'VrfGreen'. This command sets up a new VRF instance which will isolate the routing table for this VRF from the global routing table and other VRFs.

Configure the Static Route:

Use the command ip route vrf VrfGreen 172.16.128.64/28 10.10.10.1 213 to configure the static route.

ip route vrf VrfGreen specifies that the route should be added to the 'VrfGreen' VRF.

172.16.128.64/28 is the destination network.

10.10.10.1 is the next-hop IP address.

213 is the administrative distance, which in this case is set to a non-default value to influence route preference.

Save Configuration:

Save the configuration to ensure the changes persist after a reboot using the write memory command.

Dell Technologies Networking - SONiC

Dell Enterprise SONiC Deployment Guide

These steps provide a comprehensive guide to configure a VRF and a static route within that VRF on a SONiC-based switch, ensuring the specific requirements for routing and administrative distance are met.


DRAG DROP

In what order should these commands be entered to configure an access port in SONiC CLI if the required VLAN is already configured?



Question 6
Correct answer: Question 6

Explanation:

Configure terminal

interface ehtenet 1/1

switchport access vlan 20

exit


Dell Technologies SONiC Command Reference Guide

Dell Networking Configuration Guide

Refer to the exhibit.

What can be determined from this show command?

A.
Traffic below 100 KB is marked as congested
A.
Traffic below 100 KB is marked as congested
Answers
B.
ECN is enabled for all colors
B.
ECN is enabled for all colors
Answers
C.
ECN is enabled for all DSCP values
C.
ECN is enabled for all DSCP values
Answers
D.
There is a 10% probability that traffic is marked as congested
D.
There is a 10% probability that traffic is marked as congested
Answers
Suggested answer: B

Explanation:

The output of the command show qos wred-policy pfc34 shows the ECN (Explicit Congestion Notification) configuration for the policy pfc34. The line ecn: ecn_all indicates that ECN is enabled for all traffic classes (all DSCP values). Additionally, the green-min-threshold, green-max-threshold, and green-drop-probability settings are shown, but there is no indication of a 10% probability for marking traffic as congested. Therefore, the correct answer is B.

Dell Enterprise SONiC documentation

Dell Technologies InfoHub

How many port channels can be assigned to a single port?

A.
8
A.
8
Answers
B.
2
B.
2
Answers
C.
4
C.
4
Answers
D.
1
D.
1
Answers
Suggested answer: D

Explanation:

According to the Dell SONiC documentation, a single physical port can be a member of only one port channel at a time. This restriction ensures the consistency and integrity of link aggregation configurations.

Dell Networking SONiC: How to Configure Port Channels

Dell Technologies InfoHub

Which two elements must be included in the show mclag interface x x command?

A.
Peer-link port channel number
A.
Peer-link port channel number
Answers
B.
MC-LAG domain id
B.
MC-LAG domain id
Answers
C.
MC-LAG port channel number
C.
MC-LAG port channel number
Answers
D.
MC-LAG VLAN id
D.
MC-LAG VLAN id
Answers
Suggested answer: A, C

Explanation:

The show mclag interface command provides information about the multi-chassis link aggregation (MC-LAG) configuration. Essential elements that must be included are the peer-link port channel number and the MC-LAG port channel number. These parameters are critical for identifying the interface and its associated link aggregation settings.

Dell SONiC Command Reference Guide

Dell Technologies InfoHub

What are three characteristics of VLAN translation?

A.
VLAN translation is not supported on MC-LAG port channel interfaces.
A.
VLAN translation is not supported on MC-LAG port channel interfaces.
Answers
B.
Trunk or access ports can be configured as members of any VLANs that are not used as an SVLAN.
B.
Trunk or access ports can be configured as members of any VLANs that are not used as an SVLAN.
Answers
C.
By default, VLAN stacking is enabled on Z9432F-ON switches.
C.
By default, VLAN stacking is enabled on Z9432F-ON switches.
Answers
D.
The SVLAN header is replaced with a VNI if the provider network uses a VXLAN overlay.
D.
The SVLAN header is replaced with a VNI if the provider network uses a VXLAN overlay.
Answers
E.
SVLAN configuration for both Q-in-Q VLAN tunneling and VLAN translation is possible on the same interface.
E.
SVLAN configuration for both Q-in-Q VLAN tunneling and VLAN translation is possible on the same interface.
Answers
Suggested answer: A, B, E

Explanation:

VLAN translation is not supported on MC-LAG port channel interfaces (A): This is a restriction commonly seen in network configurations involving Multi-Chassis Link Aggregation (MC-LAG) where VLAN translation capabilities are not applied.

Trunk or access ports can be configured as members of any VLANs that are not used as an SVLAN (B): This ensures that the VLAN configuration on trunk or access ports is flexible and does not overlap with Service VLANs (SVLANs).

SVLAN configuration for both Q-in-Q VLAN tunneling and VLAN translation is possible on the same interface (E): This allows for complex VLAN tagging and translation configurations to be applied to the same interface, supporting advanced networking scenarios.

Dell Technologies SONiC documentation

Dell Networking Configuration Guide

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