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What two methods can be used to upgrade or downgrade Enterprise SONiC?
Enterprise SONiC can be upgraded or downgraded using:
Boot Loader (A): The boot loader can be used to select and load different versions of the SONiC firmware.
GRUB (D): GRUB (Grand Unified Bootloader) is another method used to manage and select different SONiC firmware versions during system boot-up.
Dell Technologies SONiC documentation
SONiC Upgrade Guide
Which three actions are required to route traffic sourced from voice servers to a dedicated Internet link''
To route traffic from voice servers to a dedicated Internet link, the following steps are necessary:
Create an ACL that selects IPs of voice servers (B): This ACL will match the traffic coming from the specified IP addresses of the voice servers.
Create a policy-map and attach the configured class-map and set the next-hop IP (D): The policy-map will use the class-map to identify the voice server traffic and then set the next-hop IP for routing.
Attach a policy to the egress interface (C): The policy-map must be applied to the egress interface to ensure that the traffic is routed correctly.
Dell SONiC QoS Configuration Guide
Dell Technologies InfoHub
Feel free to refer to the Dell SONiC documentation and Dell Technologies InfoHub for more detailed explanations and additional context.
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.
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.
Refer to the exhibits.
PC1 has a valid address on the 192.168.10.0 network, and PC2 has a valid address on the 192.168.20.0 network.
What happens when a ping command is issued between PC1 and PC2?
Network Topology Analysis:
PC1 is on VLAN 10 with an IP address in the 192.168.10.0/24 subnet.
PC2 is on VLAN 20 with an IP address in the 192.168.20.0/24 subnet.
The network uses OSPF for routing between the switches.
The OSPF area is 0, and all switches have loopback interfaces for OSPF.
Routing Table Examination (from switch1):
The show ip route command output from switch1 provides a detailed look at the routing table.
Routes to the 192.168.10.0/24 network (directly connected via Vlan10) are present.
No routes to the 192.168.20.0/24 network are listed in switch1's routing table.
For PC1 to communicate with PC2, switch1 must have a route to the 192.168.20.0/24 network.
The absence of a route to the 192.168.20.0/24 network in switch1's routing table means that switch1 cannot forward packets destined for 192.168.20.0/24.
Therefore, any ping from PC1 to PC2 will be unsuccessful as switch1 does not know how to route packets to PC2's network.
Verification with Dell SONiC:
In Dell SONiC environments, OSPF is configured to ensure dynamic routing.
The configuration must include all necessary networks for inter-switch routing.
If a network (like 192.168.20.0/24) is not included in OSPF configurations on switch1, routes to that network will not be advertised or learned, leading to failed connectivity tests like the ping from PC1 to PC2.
Dell Enterprise SONiC Deployment Guide
Dell Technologies Networking - SONiC
Topic 2, SIMULATION / Lab based
How many ports are in each port-group on the S5200 series switches?
Each port-group on the S5200 series switches consists of 4 ports. This grouping allows for efficient management and configuration of the switch ports in sets.
Dell S5200 Series Switches Documentation
Dell Technologies InfoHub
