What is the difference between PAgP and LACP?

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.)

Why is PAgP better than LACP?

The most significant difference is the vendors supported for them. LACP is open standard and supported by most of vendors, while PAGP is Cisco proprietary only used between Cisco devices. Thus if you need to form the Etherchannel on stack switch, it is better to choose LACP instead of PAGP.

What is the difference between port channel and LACP?

The port channel is configured in port-channel configuration mode. Configuration changes to a port channel interface propagate to all Ethernet interfaces in the corresponding channel group. LACP is enabled on the member interfaces by setting the channel-group mode to active or passive.

Are LACP and PAgP interoperable?

EtherChannel groups running PAgP and LACP can coexist on the same switch. Individual EtherChannel groups can run either PAgP or LACP, but they cannot interoperate.

What is PAgP?

Port Aggregation Protocol (PAgP) is a Cisco Systems proprietary networking protocol, which is used for the automated, logical aggregation of Ethernet switch ports, known as an EtherChannel.

Is LACP the same as 802.3 ad?

Link Aggregation Control Protocol is an IEEE standard defined in IEEE 802.3ad. LACP lets devices send Link Aggregation Control Protocol Data Units (LACPDUs) to each other to establish a link aggregation connection.

What is PAgP Cisco?

Port Aggregation Protocol (PAgP) is a Cisco proprietary protocol which is used for the automated, logical aggregation of Ethernet switch ports, known as an Ether Channel. The remote end must be configured in Auto or Desirable mode for a PAgP EtherChannel to form.

Which one is an advantage of using LACP?

LACP allows Fast Ethernet and Gigabit Ethernet interfaces to be mixed within a single EtherChannel. It eliminates the need for configuring trunk interfaces when deploying VLANs on multiple switches. It allows directly connected switches to negotiate an EtherChannel link.

What is Cisco PAgP?

What is LACP mode?

(LACP) LACP is defined in IEEE 802.3ad standard and enables Cisco switches to manage Ethernet channels between switches that conform to the standard. LACP facilitatesthe automaticcreation of EtherChannelsby exchanging LACP packets between Ethernet ports.

Which mode is in PAgP?

Port Aggregation Protocol (PAgP) has two Channel modes and they are “Desirable” and “Auto”.

What is the difference between LACP active and passive?

LACP runs on any link that is configured to be in the active state. The port in an active mode also automatically initiates negotiations with other ports by initiating LACP packets. Passive mode—the interface is not in an active negotiating state. LACP runs on any link that is configured in a passive mode.

What is the difference between LACP and PAgP packets?

Both LACP and PAGP packets are exchanged between switches over Etherchannel capable ports. The most significant difference is the vendors supported for them. LACP is open standard and supported by most of vendors, while PAGP is Cisco proprietary only used between Cisco devices.

What is the difference between LACP and lag?

When LACP configuration is enabled, a local LAG cannot transmit packets unless a LAG with LACP is also configured on the remote end of the link. If LACP configuration is not enabled, a local LAG might attempt to transmit packets to a remote single interface, which may cause the communication to fail.

What is pagpagp and how does it work?

PAGP is a Cisco-proprietary protocol that can be run only on Cisco switches or on switches licensed by vendors to support PAGP. PAGP facilitates the automatic creation of Etherchannel by exchanging PAGP packets between Ethernet ports.

What is the difference between PAgP/LACP and EtherChannel/port trunking?

Etherchannel/port trunking/link bundling/bonding/teaming is to combine multiple network interface. PAgP/LACP is just a protocol to form the etherchannel link. You can have etherchannel without protocol, but not advisable.