An MC-LAG provides redundancy and load balancing between the two MC-LAG peers, multihoming support, and a loop-free Layer 2 network without running STP. LACP is used to discover multiple links from a client device connected to an MC-LAG peer. LACP must be configured on both MC-LAG peers for an MC-LAG to work correctly.
Peer routing enables one VLT node to act as a proxy gateway for the other peer in a VLT domain. In a nutshell, when peer-routing is enabled on both VLT switches you can load-balance, the L3 packets through both switches – as this allows a switch in VLT domain to forward traffic on behalf of its peer switch.
Channel Groups and Port ChannelsA port channel is also referred to as a Link Aggregation Group (LAG). Port channels combine the bandwidth of multiple Ethernet ports into a single logical link. A channel group is a collection of Ethernet interfaces on a single switch.
SmartFabric Services (SFS) are an automation framework that is built into the Dell EMC SmartFabric OS10, to integrate converged and hyperconverged infrastructure systems. These solutions deliver autonomous fabric deployment, expansion, and life cycle management.
vPC (Virtual Port-Channel), also known as multichassis EtherChannel (MEC) is a feature on the Cisco Nexus switches that provides the ability to configure a Port-Channel across multiple switches (i.e. vPC peers). vPC is similar to Virtual Switch System (VSS) on the Catalyst 6500s.
Rapid Spanning Tree Protocol (RSTP) is a network protocol that ensures a loop-free topology for Ethernet networks. RSTP defines three port states: discarding, learning, and forwarding and five port roles: root, designated, alternate, backup, and disabled.
Lens Tint & TechnologyIn sunny weather, goggles with a low VLT offer the most protection and eye comfort; look for lenses with less than 25% VLT. In flat light or on overcast days, you're going to need a higher VLT; 20-70% VLT will cover the range of conditions you might encounter.
The best ski & snowboard goggles for flat light have a VLT ranging from 60-90%. Other lenses will function better on sunny days with high visibility where it is more about keeping the light out.
When deciding which kind of lenses to purchase, a good place to start is with the visible light transmission (VLT). The higher the VLT percentage is, the lighter the lens tint will be. Higher VLT percentage lenses will allow for more light to travel through the lens that will then hit the eye.
visible light transmission
VLT is calculated using a specialized tint measurement tool. This tool is placed on either side of the window and measures the amount of visible light passing through. This calculation is typically given in a percentage where again the higher the number the more percent of visible light able to pass through.
The Very Large Telescope (VLT) is a telescope facility operated by the European Southern Observatory on Cerro Paranal in the Atacama Desert of northern Chile.
Benefits of the Switch StackingIt reduces the management overhead. By reducing the required number of switches, it also reduces the cost of the network. It allows us to add or remove switches at any time without disrupting the running network or affecting its performance.
Its the complete ring bandwidth in a stack when all the switches are connected together in a full ring. the bandwidth is a set amount as per the data sheets , so the full ring bandwidth with 8 switches is 80gb , it varies from platform to platform.
Physical Switches/Routers: Generally, wired networking devices can last around five years. They'll definitely show their age in the last couple years, but usually won't create drag on a business unless it's specifically focused on data-heavy operations or going all-in on video-based technologies.
Compared to the modular switch option, stackable switches provide a less expensive option (especially for SMB use cases), but with similar scalability and usually with better flexibility. Talking about performance, stacking switches doesn't not necessary means increase the performance.
A switch stack is a set of up to 8 switches connected through their stacking ports.
A switch stack is identified in the network by its bridge ID and, if the switch stack is operating as a Layer 3 device, its router MAC address. The bridge ID and router MAC address are determined by the MAC address of the stack master. Every stack member is uniquely identified by its own stack member number.
Virtual Stacking is an industry-first technology that provides centralized management for up to 10,000 switch ports. This limitation makes managing large, distributed networks unnecessarily complex and expensive, with on-going OpEx needed to maintain all the network devices.
So switch stacks improve redundancy for some types of failures, but increase complexity and impair redundancy for other situations (most notably upgrades).
standalone switches. As the network grows, you will need more switches to provide network connectivity to the growing number of devices in the network. When using standalone switches, each switch is managed and configured as an individual entity.
