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LAG and LACP

Created by dave. Last edited by dave, 331 days ago. Viewed 886 times. #2
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(27 June 2012)
on JunOS 10.4r5.5

Simple LAG Creation

Tell the switch how many ports are in each aggregated ethernet (ae) device:

set chassis aggregated-devices ethernet device-count 2

Create a LAG with two ports. Note you must first remove the unit section from the physical ports before adding them to the ae. Then you must create the appropriate fields on the ae so that you can add it to VLANs:

set interfaces ae1 aggregated-ether-options minimum-links 2
delete interfaces ge-0/0/23 unit 0
delete interfaces ge-0/0/24 unit 0
set interfaces ge-0/0/23 ether-options 802.3ad ae1
set interfaces ge-0/0/24 ether-options 802.3ad ae1
set interfaces ae1 unit 0 family ethernet-switching port-mode access 
set interfaces ae1 unit 0 family ethernet-switching vlan members i4c158

Same thing, only with LACP Passive set on the LAG:

You must do the set chassis aggregated-devices command above if you have not already done so.

set interfaces ae0 aggregated-ether-options minimum-links 2
delete interfaces ge-0/0/21 unit 0
delete interfaces ge-0/0/22 unit 0
set interfaces ge-0/0/21 ether-options 802.3ad ae0
set interfaces ge-0/0/22 ether-options 802.3ad ae0
set interfaces ae0 aggregated-ether-options lacp periodic fast
set interfaces ae0 unit 0 family ethernet-switching port-mode access 
set interfaces ae0 unit 0 family ethernet-switching vlan members i4c158

Reference

I have the document software-ex-series-104-all.pdf; this stuff is discussed starting page 1330. It is kinda thin.

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