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questions for system-id for lag interfaces

[ Edited ]
‎05-02-2020 01:56 PM

evpn.JPG

on vMX7

set chassis aggregated-devices ethernet device-count 2
set interfaces ge-0/0/0 gigether-options 802.3ad ae0
set interfaces ge-0/0/1 gigether-options 802.3ad ae1
set interfaces ae0 aggregated-ether-options lacp active
set interfaces ae0 aggregated-ether-options lacp system-id 00:78:78:78:78:01
set interfaces ae0 unit 0 family bridge interface-mode trunk
set interfaces ae0 unit 0 family bridge vlan-id-list 100
set interfaces ae0 unit 0 family bridge vlan-id-list 101
set interfaces ae0 unit 0 esi 00:78:78:78:78:78:78:78:78:01
set interfaces ae0 unit 0 esi all-active

set interfaces ae1 aggregated-ether-options lacp active
set interfaces ae1 aggregated-ether-options lacp system-id 00:78:78:78:78:02
set interfaces ae1 unit 0 family bridge interface-mode trunk
set interfaces ae1 unit 0 family bridge vlan-id-list 101
set interfaces ae1 unit 0 family bridge vlan-id-list 100
set interfaces ae1 unit 0 esi 00:78:78:78:78:78:78:78:78:02
set interfaces ae1 unit 0 esi all-active

on VMX8
set chassis aggregated-devices ethernet device-count 2
set interfaces ge-0/0/0 gigether-options 802.3ad ae0
set interfaces ge-0/0/1 gigether-options 802.3ad ae1
set interfaces ae0 aggregated-ether-options lacp active
set interfaces ae0 aggregated-ether-options lacp system-id 00:78:78:78:78:01
set interfaces ae0 unit 0 family bridge interface-mode trunk
set interfaces ae0 unit 0 family bridge vlan-id-list 100
set interfaces ae0 unit 0 family bridge vlan-id-list 101
set interfaces ae0 unit 0 esi 00:78:78:78:78:78:78:78:78:01
set interfaces ae0 unit 0 esi all-active

set interfaces ae1 aggregated-ether-options lacp active
set interfaces ae1 aggregated-ether-options lacp system-id 00:78:78:78:78:02
set interfaces ae1 unit 0 family bridge interface-mode trunk
set interfaces ae1 unit 0 family bridge vlan-id-list 101
set interfaces ae1 unit 0 family bridge vlan-id-list 100
set interfaces ae1 unit 0 esi 00:78:78:78:78:78:78:78:78:02
set interfaces ae1 unit 0 esi all-active

I think ae0 on vMX7 should be the same as ae1 on vMX8, and ae1 on vMX7 should be the same as as as0 on vMX8, Right ?

2 REPLIES 2
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Solution
Accepted by topic author gongyayu
‎05-02-2020 07:42 PM

Re: questions for system-id for lag interfaces

‎05-02-2020 06:42 PM

Hi,

 

The system-id should match on VMX7, and on VMX8, they are basically the identifier advertised to the downstream peers connected to both devices, therefore it should match across peers. As long as the ae0 system-id is the same on VMX7 and VMX8, it should work, the same can be said for VMX8.

 

https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/system-id...

 

Please mark my post as the solution if this has solved your question.

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Re: questions for system-id for lag interfaces

‎05-02-2020 07:42 PM

thanks !!

 

Got it.