Does EtherChannel work on routers?

EtherChannel provides fault-tolerant high-speed links between switches, routers, and servers.

Does EtherChannel double bandwidth?

Benefits of using EtherChannel Increased Bandwidth: Use EtherChannel and combine two or four links into one logical link. It will double or quadruple your bandwidth. For example, four 100Mb Fast Ethernet connections bonded into one could provide you up to 800Mb/second, full duplex.

Is port channel and EtherChannel same?

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.

What will happen if one port in an EtherChannel is configured?

If one link in EtherChannel goes down, the bandwidth of the EtherChannel will be automatically updated, and thus the STP cost will change as well. On Layer 3 switches, you can convert switched ports to routed ports.

What is an advantage of EtherChannel?

EtherChannel provides redundancy because the overall link is seen as one logical connection. Additionally, the loss of one physical link within the channel does not create a change in the topology; therefore a spanning tree recalculation is not required.

What are the requirements of EtherChannel?

Criteria – To form an EtherChannel, all ports should have:

• Same duplex.
• Same speed.
• Same VLAN configuration (i.e., native VLAN and allowed VLAN should be same)
• Switch port modes should be the same (access or trunk mode)

What is Layer 2 EtherChannel?

A layer2 etherchannel is seen as a single link by STP allowing to use all the member links for better performance. Most of the times a layer2 etherchannel is configured as a trunk ( 802.1Q more often) and can carry multiple Vlans/broadcast domains.

What is the difference between port channel and virtual port channel?

One of the key difference between the two technologies (port-channel and virtual port-channel ) is that port channels support both Layer 2 and Layer 3. vPC on the other hand only supports Layer 2.

What are protocol used for EtherChannel?

EtherChannel protocols – To form an EtherChannel, there are 2 protocols, port aggregation Protocol (PAgP) and link aggregation control protocol (LACP). The Cisco proprietary protocol Port Aggregation Protocol (PAgP) is an EtherChannel technology.

What is the EtherChannel used for?

“EtherChannel” is Cisco’s own term for this port channelling, which represents the ability to bundle multiple Ethernet cables into one virtual line on Cisco devices. We commonly use this to increase the bandwidth of Layer 2 technologies, meaning all traffic within your LAN can be increased.

Should I use LACP or PAgP?

Besides, LACP can support cross-stack, while PAGP does not since it does not support participating interfaces on different physical switches. Thus if you need to form the Etherchannel on stack switch, it is better to choose LACP instead of PAGP.

What are two benefits of using EtherChannel?

Meaning, we can utilize all of the 4 links and reap the benefits of EtherChannel namely, load balancing, redundancy, and increased bandwidth. If we enter ‘show running-config interface ‘ on both switches, we’ll see the ‘switchport mode trunk’ and ‘channel-group 1 mode’ commands issued on the interfaces.