What is EtherChannel CCNA?
EtherChannel is a technology wherein we bundle physical interfaces together to create a single logical link. It is also known as Link Aggregation. It provides fault-tolerant and high-speed links between Cisco switches and routers and is often seen in the backbone network.
Is EtherChannel a Layer 2 or 3?
A layer 3 etherchannel is similar to an interface on a router. The switch won’t “switch” traffic on this interface but route it. Because it’s a layer 3 interface, we configure an IP address on it. Before we configure the port channel settings you need to make sure that all interfaces have the exact same configuration.
Is EtherChannel a Layer 2?
On a Layer 2 switch, EtherChannel is used to aggregate access ports or trunks. For example, if the physical ports of one side are configured as trunks, the physical ports of the other side must also be configured as trunks. Each EtherChannel has a logical port channel interface.
What are the prerequisites to form an EtherChannel?
Prerequisites of Enabling EtherChannel
- EtherChannel bundle links must be of the same type and speed.
- All links intended to be bundled MUST NOT exceed the number of eight physical links.
- All links MUST belong to the same VLAN if used as access links.
What is the advantage of EtherChannel?
EtherChannel allows you to achieve greater speed by bundling Fast Ethernet or Gigabit Ethernet links, which makes a switch or router use the merged ports as a single port. This gives you the most bang for your buck from your port cost.
Is EtherChannel Cisco proprietary?
The Cisco proprietary protocol Port Aggregation Protocol (PAgP) is an EtherChannel technology. It’s a type of data/traffic load balancing that involves the logical aggregation of Cisco Ethernet switch ports.
What is Port Channel vs EtherChannel?
Port channel vs Etherchannel –
| PARAMETER | PORT CHANNEL | ETHERCHANNEL |
|---|---|---|
| Cisco’s way of distinguishing | Port-channel is the name of Cisco’s virtual interface for the purpose of Link aggregation | Etherchannel is a term used by Cisco to describe a link aggregation |
What is EtherChannel in Cisco switch?
EtherChannel is a port link aggregation technology or port-channel architecture used primarily on Cisco switches. It allows grouping of several physical Ethernet links to create one logical Ethernet link for the purpose of providing fault-tolerance and high-speed links between switches, routers and servers.