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what the difference between lacp-static and lacp-dynamics.

Created: Oct 31, 2018 07:00:36Latest reply: Apr 24, 2019 13:24:51 4833 8 0 0
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what the difference between lacp-static and lacp-dynamics.
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Mysterious.color
Created Oct 31, 2018 09:28:17 Helpful(0) Helpful(0)

This post was last edited by Mysterious.color at 2018-12-05 02:27. Hi,
Static LAG is a bunch of links aggregated, which result into an aggregated X interface. No signalling takes place between two peers and therefore a miss-configuration on one side can be very harmful and difficult to troubleshoot(like links mismatch etc)
The dynamic LAG) uses LACP packets to establish association and therefore the miss-configuration probability is reduced (for example when links are bounded only on one device...). You have to keep in mind that at least one part should be configured as active.


it is my field 
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Mysterious.color
Mysterious.color Created Oct 31, 2018 09:28:17 Helpful(0) Helpful(0)

This post was last edited by Mysterious.color at 2018-12-05 02:27. Hi,
Static LAG is a bunch of links aggregated, which result into an aggregated X interface. No signalling takes place between two peers and therefore a miss-configuration on one side can be very harmful and difficult to troubleshoot(like links mismatch etc)
The dynamic LAG) uses LACP packets to establish association and therefore the miss-configuration probability is reduced (for example when links are bounded only on one device...). You have to keep in mind that at least one part should be configured as active.


it is my field 
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Core%20Engineer%2C%20Technical%20Department.%20High%20experience%20in%20Networking
faysalji
faysalji Created Oct 31, 2018 13:15:56 Helpful(0) Helpful(0)

For details, see >> https://forums.juniper.net/t5/Ethernet-Switching/difference-b-w-static-Lag-and-dynamic-lag/td-p/91788
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faysalji
faysalji Created Oct 31, 2018 13:17:51 Helpful(0) Helpful(0)

And this >> https://community.spiceworks.com/topic/758593-lacp-vs-static-lags
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HATMAN
HATMAN Created Oct 31, 2018 15:06:32 Helpful(0) Helpful(0)

Posted by Mysterious.color at 2018-10-31 09:28 Hi,Static LAG is a bunch of links aggregated, which result into an aggregated X interface. No signal ...
i think in both options on Huawei device also using LACP for negotiation? because on the command specific “LACP-static/dynamic”
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HATMAN
HATMAN Created Oct 31, 2018 15:12:22 Helpful(0) Helpful(0)

ok from my testing
lacp-static
1.device using lacp protocol
2.if some members can’t to negotiation LACP their port will be put to status unselected , port look like down state but still can send/receive LACP messages.

lacp-dynamic
it same as upper but incase can’t negotiation port will put to sate independent state, the port can forward packets.
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4am
4am Created Dec 22, 2018 09:40:48 Helpful(0) Helpful(0)

When you deploy, you mainly look at the peer device.
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xiaomumu
xiaomumu Created Dec 24, 2018 01:19:40 Helpful(0) Helpful(0)

Good answer upstairs
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efelipe
efelipe Created Apr 24, 2019 13:24:51 Helpful(0) Helpful(0)

So I understand this way:

- lacp-static is LACP active, send and receive LACP PDUs, after successfully negotiation the port is aggregate.

- lacp-dynamic is LACP passive, only waits for receive LACP PDUs, if receive the port is selected for agregation, if not the port is independent.

The only information that i found is about that use lacp-dynamic for connected to servers, but I´m unable to find a document that explain in deep the behaviur.

Maybe the lacp-dynamic was created to avoid missconfiguration with servers boundings, could be?
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