LACP, or Link Aggregation Control Protocol, is a standard defined by IEEE 802.3ad for bundling or bonding multiple physical network ports together into one virtual device. This provides both high availability and load balancing. Participants in an LACP aggregation actively communicate with each other using LACPDUs every 1 second or 30 second to maintain knowledge of the bond configuration.
Questions tagged [lacp]
117 questions
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Bonding 802.3ad and HPE switches: ingress and egress traffic not in the same interface
I have LACP configured between my server (802.3ad, layer2, so based on source MAC and destination MAC) and my switch.
Recently I saw that ingress traffic for a network peer is using one interface (eth3) while egress, for the same network peer, is…

Thomas Martin
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Bonding 4 Gigabit ethernet and 2 Fiber SFP+
We received a DL380 with 4 Gigabit Ethernet (normal CAT6), and 2 Fiber SFP+ (HPE 10Gb SR SPF+). I've successfully managed to bond the 4 Gigabit Ethernet together, and put in place some LACP on our Cisco equipment.
I can succefully bond the 4 Gigabit…

Tolsadus
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Server connectivity to 2 different upstream switches
I have the below questions with regard to server connectvity to two different upstream switch.
Q1: In one of the blogs i read that many server NIC drivers support LACP as well for providing a port channel between a server and its upstream switch. Is…

surya
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Linking two Dell switch stacks with LAG / LACP
Right now we have two independent switch stacks jointed with a single ethernet cable. For throughput and redundancy I would like to join them with a LAG. One switch stack is made up of Dell 7048's, the other is Dell 8132's (now called N4000 I…

Hank
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LACP - Up Sngl-port-Bndl Mstr Not-in-Bndl
I setup a port channel between two Cisco switches, a 6509 running ios 12.2(17r)S4 and a 5596 running nx-os 5.2(1)N1(4). Several issues arose including bad patches and broken cables, but I currently have two active links in the port channel to work…

fishpen0
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Cisco - LACP between two Catalyst switches (trunk links)
So I just put up a LACP between two Cisco catalyst switches.
Snippets of configuration are as following:
[3550 switch - port 22 and 23 are connected to 2950 and 24 is to router]
interface Port-channel1
switchport access vlan 50
switchport trunk…
user192756
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OEL 6.5 bonding mode=802.3ad no connection
OEL 6.5 bonding mode=802.3ad no connection
I configured 2nic into bond on OEL 6.5. to cisco switch (lacp)
----------
| eth0 |=====+ +~~physical-link~~\
---------- || --------- | ----------
|===|…

soul_assassins
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Communication redundancy
I have a device that is connected to a switch and is then connected to a customer controller. I have been asked to make the connection to the controller redundant because they are very far apart from one another. In the case of one connection…

rawbus
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LACP vs manual load sharing
I have a file server with multiple NICs (1Gbps) consumed by some different kinds of client.
Given my switch is configured hash using src and dest ip and port.
By manual load sharing I mean NICs on file server have different IPs and shares are…

Yuan
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Link Aggregation & Windows Servers
So... We have a few servers that we would like load balanced link aggregation between multiple network interfaces. In the past we have used broadcom basp teaming using LACP.
Today we encountered THIS problem. An 'A' record for one of our DCs…

Matt
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LACP Aggregation between Cisco C3750X and HP JD990A
The interface on the JD990A is very cut down. There is a serial console with minimal commands and a web interface.
The 3750 is in a 2 switch stack and I am trying to configure cross-stack link aggregation with the HP. Most information online tends…

Matt
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ESXi and link aggregation to another system
Can I aggregate two or more interface on ESXi 5.1u1 to connect (without a switch) another system that support this type of connection?
I want create a back-to-back link aggregation as like descripted in this…

CSG
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Fortigate + HP ProCurve Load Balancing
I have a FortiGate 100D + HP ProCurve 2824 linked together by 4x 1Gb links.
The ProCurve is configured to have ports 21-24 trunked together and load balance them.
The 4 cables from these ports are then fed into the 100D on ports 1-4 which are…

Myles Gray
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Link Aggregation between DELL PC2724 and Cisco Catalyst 3750
I'm trying to configure Link Aggregation between my two switches, on the DELL switch, there is only an option to include a port in a "LAG Group." On the Cisco's I've tried creating an EtherChannel group with "Dynamic Desirable" (set to negotiate). I…

Nate
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How would I create multiple VLAN interfaces on a 802.1Q and LACP trunked network connection on Solaris?
I've got a Solaris (Nexenta) NAS box that I'm trying to create multiple VLAN subinterfaces for.
Currently, I've got an LACP aggregated link set up on the 10.13.111.0/26 network to my switch (Cisco 3750). The switch port-channel interface is in…

growse
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