Before Starting LAG configuration, See the below details.
## Link aggregation group (LAG)
## Link Aggregation Control Protocol (LACP)
When configuring LAGs, consider the following guidelines:
You must configure the LAG on both sides of the link.
You must set the interfaces on either side of the link to the same speed.
You can configure and apply firewall filters on a LAG.
You can optionally configure LACP for link negotiation.
You can optionally configure LACP for link protection.
-------------------------------------------------------For Site A----------------------------------------------------
1.The first step is to specify the number of aggregated links on the switch. This command is to specify number of bundle (aggregated interface) you want to create.:
set chassis aggregated-devices ethernet device-count 1
Here we will create one bundle links each having two Ethernet from different VC member (switch).
2.Next, we have to remove the logical unit configuration from the interfaces that are to be bundled, as logical units are not allowed on aggregated links:
delete interfaces ge-0/0/0 unit 0
delete interfaces ge-1/0/0 unit 0
3.Next, set the interfaces to use LACP (802.3ad) and to be members of a logical aggregated ethernet port (ports begin with ae).
To associate physical interface with an aggregated Ethernet interface, hit the following command:
set interfaces ge-0/0/0 ether-options 802.3ad ae0
set interfaces ge-1/0/0 ether-options 802.3ad ae0
4.Then we need to set the LACP mode for our new aggregated interface. We’ll make the Juniper side Active, so that it initiates the transmissison of LACP packets:
set interfaces ae0 aggregated-ether-options lacp active
5.Finally, we need to set the aggregated link to be a trunk, and tell it which VLAN’s to trunk.
Configure interface parameters like VLANs, MTU, port-mode, etc. in ae interfaces:
set interfaces ae0 unit 0 family ethernet-switching port-mode trunk
set vlans NOC vlan-id 10
set vlans IT vlan-id 20
set interfaces ae0 unit 0 family ethernet-switching vlan members IT
set interfaces ae0 unit 0 family ethernet-switching vlan members NOC
set interfaces ge-0/0/6 unit 0 family ethernet-switching vlan members IT
set interfaces ge-1/0/6 unit 0 family ethernet-switching vlan members IT
set interfaces ge-0/0/5 unit 0 family ethernet-switching vlan members NOC
set interfaces ge-1/0/5 unit 0 family ethernet-switching vlan members NOC
6.Veryfing:
root> show lacp interfaces
Aggregated interface: ae0
LACP state: Role Exp Def Dist Col Syn Aggr Timeout Activity
ge-0/0/0 Actor No No Yes Yes Yes Yes Fast Active
ge-0/0/0 Partner No No Yes Yes Yes Yes Fast Active
ge-1/0/0 Actor No No Yes Yes Yes Yes Fast Active
ge-1/0/0 Partner No No Yes Yes Yes Yes Fast Active
LACP protocol: Receive State Transmit State Mux State
ge-0/0/0 Current Fast periodic Collecting distributing
ge-1/0/0 Current Fast periodic Collecting distributing
root> show ethernet-switching interfaces
Interface State VLAN members Tag Tagging Blocking
ae0.0 up IT 20 tagged unblocked
NOC 10 tagged unblocked
root> show vlans
Name Tag Interfaces
IT 20 ae0.0*, ge-0/0/6.0, ge-1/0/6.0
NOC 10 ae0.0*, ge-0/0/5.0*, ge-1/0/5.0
default
ge-0/0/1.0, ge-0/0/2.0, ge-0/0/3.0, ge-0/0/4.0,
ge-0/0/7.0, ge-0/0/8.0, ge-0/0/9.0, ge-0/0/10.0,
ge-0/0/11.0, ge-0/0/12.0, ge-0/0/13.0, ge-0/0/14.0,
ge-0/0/15.0, ge-0/0/16.0, ge-0/0/17.0, ge-0/0/18.0,
ge-0/0/19.0, ge-0/0/20.0, ge-0/0/21.0, ge-0/0/22.0,
ge-0/0/23.0, ge-0/0/24.0, ge-0/0/25.0, ge-0/0/26.0,
ge-0/0/27.0, ge-0/0/28.0, ge-0/0/29.0, ge-0/0/30.0,
ge-0/0/31.0, ge-0/0/32.0, ge-0/0/33.0, ge-0/0/34.0,
ge-0/0/35.0, ge-0/0/36.0, ge-0/0/37.0, ge-0/0/38.0,
ge-0/0/39.0, ge-0/0/40.0, ge-0/0/41.0, ge-0/0/42.0,
ge-0/0/43.0, ge-0/0/44.0, ge-0/0/45.0, ge-0/0/46.0,
ge-0/0/47.0, ge-1/0/1.0, ge-1/0/2.0, ge-1/0/3.0,
ge-1/0/4.0, ge-1/0/7.0, ge-1/0/8.0, ge-1/0/9.0,
ge-1/0/10.0, ge-1/0/11.0, ge-1/0/12.0, ge-1/0/13.0,
ge-1/0/14.0, ge-1/0/15.0, ge-1/0/16.0, ge-1/0/17.0,
ge-1/0/18.0, ge-1/0/19.0
-------------------------------------------------For Site B---------------------------------------------------------
1.The first step is to specify the number of aggregated links on the switch. This command is to specify number of bundle (aggregated interface) you want to create.:
set chassis aggregated-devices ethernet device-count 1
Here we will create one bundle links each having two Ethernet from different VC member (switch).
2.Next, we have to remove the logical unit configuration from the interfaces that are to be bundled, as logical units are not allowed on aggregated links:
delete interfaces ge-0/0/0 unit 0
delete interfaces ge-1/0/0 unit 0
3.Next, set the interfaces to use LACP (802.3ad) and to be members of a logical aggregated ethernet port (ports begin with ae).
To associate physical interface with an aggregated Ethernet interface, hit the following command:
set interfaces ge-0/0/0 ether-options 802.3ad ae0
set interfaces ge-1/0/0 ether-options 802.3ad ae0
4.Then we need to set the LACP mode for our new aggregated interface. We’ll make the Juniper side Active, so that it initiates the transmissison of LACP packets:
set interfaces ae0 aggregated-ether-options lacp active
5.Finally, we need to set the aggregated link to be a trunk, and tell it which VLAN’s to trunk.
Configure interface parameters like VLANs, MTU, port-mode, etc. in ae interfaces:
set interfaces ae0 unit 0 family ethernet-switching port-mode trunk
set vlans NOC vlan-id 10
set vlans IT vlan-id 20
set interfaces ae0 unit 0 family ethernet-switching vlan members IT
set interfaces ae0 unit 0 family ethernet-switching vlan members NOC
set interfaces ge-0/0/6 unit 0 family ethernet-switching vlan members IT
set interfaces ge-1/0/6 unit 0 family ethernet-switching vlan members IT
set interfaces ge-0/0/5 unit 0 family ethernet-switching vlan members NOC
set interfaces ge-1/0/5 unit 0 family ethernet-switching vlan members NOC
6.Veryfing:
root> show lacp interfaces
Aggregated interface: ae0
LACP state: Role Exp Def Dist Col Syn Aggr Timeout Activity
ge-0/0/0 Actor No No Yes Yes Yes Yes Fast Active
ge-0/0/0 Partner No No Yes Yes Yes Yes Fast Active
ge-1/0/0 Actor No No Yes Yes Yes Yes Fast Active
ge-1/0/0 Partner No No Yes Yes Yes Yes Fast Active
LACP protocol: Receive State Transmit State Mux State
ge-0/0/0 Current Fast periodic Collecting distributing
ge-1/0/0 Current Fast periodic Collecting distributing
root> show ethernet-switching interfaces
Interface State VLAN members Tag Tagging Blocking
ae0.0 up IT 20 tagged unblocked
NOC 10 tagged unblocked
root> show vlans
Name Tag Interfaces
IT 20
ae0.0*, ge-0/0/6.0, ge-1/0/6.0
NOC 10
ae0.0*, ge-0/0/5.0*, ge-1/0/5.0
default
ge-0/0/1.0, ge-0/0/2.0, ge-0/0/3.0, ge-0/0/4.0,
ge-0/0/7.0, ge-0/0/8.0, ge-0/0/9.0, ge-0/0/10.0,
ge-0/0/11.0, ge-0/0/12.0, ge-0/0/13.0, ge-0/0/14.0,
ge-0/0/15.0, ge-0/0/16.0, ge-0/0/17.0, ge-0/0/18.0,
ge-0/0/19.0, ge-0/0/20.0, ge-0/0/21.0, ge-0/0/22.0,
ge-0/0/23.0, ge-0/0/24.0, ge-0/0/25.0, ge-0/0/26.0,
ge-0/0/27.0, ge-0/0/28.0, ge-0/0/29.0, ge-0/0/30.0,
ge-0/0/31.0, ge-0/0/32.0, ge-0/0/33.0, ge-0/0/34.0,
ge-0/0/35.0, ge-0/0/36.0, ge-0/0/37.0, ge-0/0/38.0,
ge-0/0/39.0, ge-0/0/40.0, ge-0/0/41.0, ge-0/0/42.0,
ge-0/0/43.0, ge-0/0/44.0, ge-0/0/45.0, ge-0/0/46.0,
ge-0/0/47.0, ge-1/0/1.0, ge-1/0/2.0, ge-1/0/3.0,
ge-1/0/4.0, ge-1/0/7.0, ge-1/0/8.0, ge-1/0/9.0,
ge-1/0/10.0, ge-1/0/11.0, ge-1/0/12.0, ge-1/0/13.0,
ge-1/0/14.0, ge-1/0/15.0, ge-1/0/16.0, ge-1/0/17.0,
ge-1/0/18.0, ge-1/0/19.0
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