Media Independent (22.1.7) Unreliable means that IP does not have the capability to manage and recover from undelivered or corrupt packets. This is because while IP packets are sent with information about the location of delivery, they do not contain information that can be processed to inform the sender whether delivery was successful. Packets may…
IP Encapsulation – 100-150 Exam Guide
IP Encapsulation (22.1.3) IP encapsulates the transport layer (the layer just above the network layer) segment or other data by adding an IP header. The IP header is used to deliver the packet to the destination host. Figure 22-2 illustrates how the transport layer PDU is encapsulated by the network layer PDU to create an…
Network Layer – 100-150 Exam Guide
Objectives Upon completion of this chapter, you will be able to answer the following questions: • How does the network layer use IP protocols for reliable communications? • What is the role of the major header fields in the IPv4 packet? • What is the role of the major header fields in the IPv6 packet?…
Public IP address prefixes – MS AZ-104 Exam Guide
Public IP address prefixesWhen using multiple public IP addresses, it can be convenient to have all of the IP addresses allocated from a single IP range or prefix. For example, when configuring firewall rules, this allows you to configure a single rule for the prefix, rather than separate rules for each IP address.To support this…
Ethernet Switching Summary
Ethernet Switching Summary (21.5) The following is a summary of each topic in the chapter and some questions for your reflection. What Did I Learn in this Module? (21.5.1) • Ethernet—There is no official local area networking standard protocol, but over time, one technology, Ethernet, has become more common than the others. Ethernet protocols define…
Find the Destination MAC Address
Find the Destination MAC Address If the destination MAC address is a unicast address, the switch will look for a match between the destination MAC address of the frame and an entry in its MAC address table. If the destination MAC address is in the table, it will forward the frame out the specified port….
Basic vs Standard pricing tiers
Basic vs Standard pricing tiers Public IP addresses are available at two pricing tiers (or SKUs): Basic or Standard. All public IP addresses created before the introduction of these tiers are mapped to the Basic tier. Standard tier public IP addresses support zone-redundant deployment, allowing you to use availability zones to protect your deployments against…
The MAC Address Table – 100-150 Exam Guide
The MAC Address Table (21.4) Compared to legacy Ethernet hubs, Ethernet switches improve efficiency and overall network performance. Although traditionally most LAN switches operate at Layer 2 of the OSI model, an increasing number of Layer 3 switches are now being implemented. This section focuses on Layer 2 switches. Layer 3 switches are beyond the…
Unicast MAC Address – 100-150 Exam Guide
Unicast MAC Address (21.3.2) In Ethernet, different MAC addresses are used for Layer 2 unicast, broadcast, and multicast communications. A unicast MAC address is the unique address that is used when a frame is sent from a single transmitting device to a single destination device. In Figure 21-8, the destination MAC address and the destination…
Create a VNet peering using the Azure portal
Create a VNet peering using the Azure portalTo create a peering connection between two VNets, the VNets must already have been created and must not have overlapping address spaces.To create a new VNet peering from VNet-hub to VNet-spoke, connect to the Azure portal and locate VNet-hub. Under Settings, click Peerings, and then click Add to…