A Domain Name System server (DNS server) plays a crucial role in mapping the hostname of a network device to its corresponding IP address. Typically, computers use the IP address of a device to identify the device in a network. However, IP addresses can be challenging for humans to remember. DNS helps to associate a
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EtherChannel employs an algorithm to load-balance traffic effectively among the physical interfaces that form a logical interface in the etherchannel. This ensures that frames within the same flow traverse the network consistently using a designated physical interface. A “flow” is the path from one network device to another. Maintaining the order of frames within a
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PortChannel is used to combine multiple physical interfaces into a single logical interface, boosting the bandwidth of a point-to-point connection between two switches. On the other hand, TrunkPort helps to convey traffic from different VLANs over one connection linking two switches. In this post, I will show you how to configure PortChannel with Trunk. We
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Link Aggregation Control Protocol (LACP) is the industry-standard protocol, defined by IEEE 802.3ad/802.1AX. It joins multiple physical interfaces connecting two switches or routers into a unified logical interface. This not only increase the overall bandwidth but also establishes a redundant connection between the network devices. In this post, I will show you how to Configure
How to Configure LACP Etherchannel on Cisco Switch in Packet Tracer Read More »
Routers, just like switches, have the capability to join multiple physical interfaces into a logical interface referred to as an EtherChannel. While switches extend support for dynamic negotiation protocols such as LACP and PAgP, along with static EtherChannels, routers only support static EtherChannels. In a previous post, we demonstrated how to configure EtherChannel on the
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Layer 3 ether channel, just like Layer 2 ether channel, helps to load balance traffic between multiple physical interfaces, which is configured to be one virtual interface. You have probably learned how to configure layer 2 etherchannels. In this post, I will be showing you how to configure layer 3 etherchannels on the packet tracer.
In a local area network (LAN), routers has the knowledge of the routes to host devices within the network. However, in a wide area network (WAN), which typically consist of two or more routers, routers in the network does not know routes to host devices or network addresses beyond those directly connected to its interfaces.
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Address Resolution Protocol (ARP) and Dynamic Host Configuration Protocol (DHCP) are two protocols used in associating IP addresses to host devices in a network. ARP is a protocol that is used to map an IP address to a physical machine (mac address) by sending a multicast message on a LAN and recording the mac address
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Internet Control Message Protocol (ICMP) and User Datagram Protocol (UDP) are two communication protocols employed for the delivery of data in a network. ICMP operates at the network layer of the TCP/IP suite, assessing network performance and reporting errors in network traffic. It is commonly utilized with the ping and traceroute commands. The ping command
UDP Vs ICMP: What is the Difference? Read More »
Hot Standby Routing Protocol (HSRP) is a Cisco proprietary First Hop Redundancy Protocol designed to enhance network reliability by enabling multiple routers to collectively serve as the default gateway for host devices within a subnet. The primary goal of HSRP is to establish redundant connections to the internet for a subnetwork, thereby ensuring a highly
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