What is EtherChannel configuration?

What is EtherChannel configuration?

An EtherChannel is a logical interface that bundles multiple physical interfaces. Spanning-tree sees an Etherchannel as a single interface so it won’t block redundant physical links. There are three options to configure an EtherChannel: PAgP: A Cisco proprietary protocol.

What is LACP mode on?

Link Aggregation Control Protocol IEEE 802.3ad (LACP) is an open standard of Ethernet link aggregation. LACP allows Cisco switches to manage Ethernet channels between switches that conform the 802.3ad protocol. You can configure maximum 16 ports to form a channel depending on IOS version and platform.

How many types of EtherChannel are there?

There are 3 methods to configure EtherChannel in your network: the PAgP and LACP negotiating protocols, or Static mode. The first step is assigning the physical interfaces to the Etherchannel, with different keywords indicating which protocol is to be used. Let’s examine the 3 methods and their differences.

Can we configure EtherChannel on router?

EtherChannel provides fault-tolerant high-speed links between switches, routers, and servers. EtherChannel allows multiple physical Ethernet links to be combined into one logical link.

How do I configure LACP?

SUMMARY STEPS

1. enable.
2. configure terminal.
3. interface port-channel number.
4. ip address ip_address mask.
5. interface type slot/subslot/port.
6. no ip address. channel-group number mode {active | passive}

What is a Layer 3 EtherChannel?

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.

What is the process to configure EtherChannel?

The basic process for configuring your EtherChannel interfaces is as follows: Connect to the command-line interface (CLI) your switch. Access Privileged EXEC mode. Access Global Configuration mode. Access Interface Configuration mode. Change switchport to trunk or access, but all ports must be in the same VLAN.

Does EtherChannel require LACP or PAgP?

Do not configure an EtherChannel in both the PAgP and LACP modes. EtherChannel groups running PAgP and LACP can coexist on the same switch or on different switches in the stack. Individual EtherChannel groups can run either PAgP or LACP , but they cannot interoperate.

How do you clear a Cisco switch?

Clearing out a Cisco switch configuration is always a pain because VLANs are kept in a seperate file from the startup-config (NVRAM). There’s two ways to clear a switch back to the factory defaults – the easy way and the REALLY easy way: Hold the “mode” button on the front of the switch for 10 seconds.

What are Cisco port channels?

This port channel uses Link Aggregation and Control Protocol (LACP) or in the Cisco world, could also use Port Aggregation Protocol (PAgP) to signal the establishment of the channel between two devices. A port channel does a couple of things: Increases the available bandwidth between two devices.