When installing Enterprise SONIC from an HTTP server using the Open Network Install Environment

(ONIE), the management interface typically used for network installations is eth0. This is the default

interface ONIE uses for network connectivity to retrieve installation images and other configuration

files.

Reference:

Dell Technologies SONiC documentation

ONIE User Guide

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.

Reference:

Dell SONiC Command Reference Guide

Dell Technologies InfoHub

When running symmetric Integrated Routing and Bridging (IRB) with two Virtual Forwarding Routers

(VFRs), BGP must be configured twice. Each VFR will have its own BGP instance to handle the routing

information.

Reference:

Dell Technologies SONiC Routing Guide

Dell Networking Configuration Guide

The automated installation of Enterprise SONiC is typically performed using the HTTP protocol.

During the Zero Touch Provisioning (ZTP) process, the switch retrieves configuration files and

software images from an HTTP server, allowing for automated and streamlined deployments.

Reference:

Dell Technologies SONiC documentation

ONIE User Guide

Ingress VTEP performs a route lookup that is based on the destination IP address. Ingress VTEP encapsulates the packet with VXLAN and sends it on the appropriate VNI segment. Egress VTEP determines that the host is local to the VNI and switches the packet. Egress VTEP bridges the packet after decapsulation. Steps and Correct Order: Ingress VTEP performs a route lookup that is based on the destination IP address. The ingress VTEP (Virtual Tunnel Endpoint) first needs to determine the next hop for the packet. This involves performing a route lookup using the destination IP address. Ingress VTEP encapsulates the packet with VXLAN and sends it on the appropriate VNI segment. Once the route lookup is complete, the ingress VTEP encapsulates the packet in a VXLAN header, which includes the appropriate VNI (VXLAN Network Identifier) segment, and forwards it. Egress VTEP determines that the host is local to the VNI and switches the packet. The egress VTEP receives the encapsulated VXLAN packet, decapsulates it, and then checks its local VNI to determine if the destination host is within the same VNI. Egress VTEP bridges the packet after decapsulation. After determining the destination host's locality, the egress VTEP bridges the packet to the appropriate interface to deliver it to the final destination. Reference: Dell Technologies Networking - SONiC Dell Enterprise SONiC Deployment Guide These steps provide a comprehensive guide to understand the correct order of operations in asymmetric IRB (Integrated Routing and Bridging) frame encapsulation within a VXLAN environment.

To configure an access port on the SONiC CLI, the commands should be entered in the following order: Enter global configuration mode with configure terminal. Specify the interface to configure using interface ethernet 1/1. Set the interface to access mode and assign it to VLAN 20 with switchport access vlan 20. Exit the interface configuration mode with exit. Reference: Dell Technologies SONiC Command Reference Guide Dell Networking Configuration Guide

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step by step solution

with all explanation.

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.

Reference:

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.

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step by step solution

with all explanation.

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.

Reference:

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.

Thank you for your visit.

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step by step solution

with all explanation.

Explanation:

Here is the step-by-step configuration for R1:

Enter BGP Configuration Mode:

R1# configure terminal

R1(config)# router bgp 1

Configure the BGP Neighbor:

R1(config-router)# neighbor 10.10.12.2 remote-as 2

Redistribute Connected Routes into BGP:

R1(config-router)# redistribute connected

Exit BGP Configuration Mode and Save the Configuration:

R1(config-router)# end

R1# write memory

Comprehensive Detailed Step by Step Explanation with Reference:

Enter BGP Configuration Mode:

To configure BGP on R1, you need to enter global configuration mode and then enter BGP

configuration mode with the AS number. Since R1 is in AS 1, you use the command router bgp 1.

Configure the BGP Neighbor:

BGP neighbors must be manually specified. In this case, R1's neighbor is R2, which has an IP address

of 10.10.12.2 and resides in AS 2. The command neighbor 10.10.12.2 remote-as 2 establishes this

relationship.

Redistribute Connected Routes into BGP:

To ensure that all connected routes on R1 are advertised via BGP, you use the redistribute connected

command. This ensures that any connected IPv4 routes are redistributed into BGP, meeting the

requirement to advertise current and future connected routes.

Exit BGP Configuration Mode and Save the Configuration:

Once the configuration is complete, you exit BGP configuration mode by typing end and then save

the configuration with the write memory command. This ensures that the changes persist after a

reboot.

Reference:

Cisco BGP Configuration Guide

Dell Technologies Networking - SONiC

Dell Enterprise SONiC Deployment Guide

These steps provide a comprehensive guide to configure R1 to meet the specified requirements for

BGP peering and route redistribution.

Entering the qos-mode uniform command on a VTEP interface ensures that the DSCP (Differentiated

Services Code Point) value of the payload is copied to the outer header DSCP value. This maintains

the Quality of Service (QoS) markings across the VXLAN tunnel, allowing consistent traffic

prioritization.

Reference:

Dell Technologies SONiC documentation

VXLAN and QoS Configuration Guide