What is PAgP desirable?
Desirable mode: Desirable mode in Port Aggregation Protocol (PAgP) initiates the negotiation and tries to form EtherChannel with other end. If you are using Port Aggregation Protocol (PAgP) for EtherChannel negotiation, EtherChannel will be formed only if two ends are configured under folowing modes.
What is difference between PAgP and LACP in EtherChannel?
Etherchannel. LACP is an Open standard, i.e., supported by most vendors. While PAGP is Cisco proprietary; i.e., PAGP can only be used between Cisco devices. LACP has two modes, i.e., Active mode (Ports initiate negotiation with other ports by exchanging LACP packets.)
What is PAgP and LACP?
While PAgP is Cisco proprietary, LACP is Open standard and supported by most of the vendors. Related – EtherChannel Modes. In order to configure EtherChannel through PAgP, Auto and Desirable are the keywords used while LACP uses Active and Passive modes. Related – LACP Beginners Guide.
What is EtherChannel Cisco?
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 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 LACP networking?
Defined within IEEE 802.3ad, the Link Aggregation Control Protocol (LACP) is a standards-based method to control the bundling of several physical network links together to form a logical channel for increased bandwidth and redundancy purposes.
What mode is PAgP?
There are two modes of PAgP: Auto mode: it passively negotiates PAgP aggregation. If the remote end of the link is also configured with Auto mode, a PAgP EtherChannel will not form. Auto side is waiting for negotiation to start from the other end.
What are the types of EtherChannel?
There are 3 methods to configure EtherChannel in your network: the PAgP and LACP negotiating protocols, or Static mode.