Original Message:
Sent: Feb 23, 2023 04:23 AM
From: Aruba WB
Subject: Problem with LACP between Aruba 3810m and Juniper EX4600
Why is LACP at the Juniper side configured as passive?
Could you try
set ae10 aggregated-ether-options lacp active
Like pernassus was mentioning, please raise the number of supported AE's at the juniper side.
For example
set aggregated-devices ethernet device-count 5
------------------------------
William Bargeman
Systems Engineer Aruba
Original Message:
Sent: Feb 22, 2023 03:22 AM
From: GordonFresh
Subject: Problem with LACP between Aruba 3810m and Juniper EX4600
show lacp local
1/A1 Trk1 Active Yes Slow No b8s4**-******
1/A2 Trk1 Active Yes Slow No b8s4**-******
2/A1 Trk1 Active Yes Slow No b8s4**-******
2/A2 Trk1 Active Yes Slow No b8s4**-******
show lacp peer
1/A1 Trk1 e4fc**-****** 69 127 0 17 Passive Slow
1/A2 Trk1 e4fc**-****** 81 127 0 17 Passive Slow
2/A1 Trk1 e4fc**-****** 68 127 0 17 Passive Slow
2/A2 Trk1 e4fc**-****** 80 127 0 17 Passive Slow
The problem with LACP is on the Juniper EX4600 side. For now, Juniper support is trying to fix the problem.
Original Message:
Sent: Feb 20, 2023 07:26 AM
From: thomasbnc
Subject: Problem with LACP between Aruba 3810m and Juniper EX4600
Hi
did you check interface statistics ("show interface <port>") for any errors or discards?
What happened between 14:05:05 and 14:12:49 as well as between 13:55:42 and 14:04:50? Did you disconnect anything or change any configuration? Or was this out of nothing and may be a root cause of your problem?
Another one: Does is make a difference which of the 4 links you disconnect in order to have a stable connection? Can you disable ANY of the 4 or do you have to disconnect a specific one?
LACP seems to have established a good partnership with the other side, however, could you please also get the output of the following commands:
- show lacp local
- show lacp peer
Did you check interface and LACP status on the Juniper side as well? Does it show any strange behavior?
Regards,
Thomas
Original Message:
Sent: Feb 20, 2023 03:42 AM
From: GordonFresh
Subject: Problem with LACP between Aruba 3810m and Juniper EX4600
This is my log from 3810m:
show logging -r
I 02/16/23 14:13:03 00076 ports: ST1-CMDR: port 1/A2 in Trk1 is now on-line
I 02/16/23 14:13:03 00435 ports: ST1-CMDR: port 1/A2 is Blocked by STP
I 02/16/23 14:13:00 00435 ports: ST1-CMDR: port 1/A2 is Blocked by LACP
I 02/16/23 14:12:49 00077 ports: ST1-CMDR: port 1/A2 in Trk1 is now off-line
I 02/16/23 14:05:05 00076 ports: ST1-CMDR: port 1/A2 in Trk1 is now on-line
I 02/16/23 14:05:05 00435 ports: ST1-CMDR: port 1/A2 is Blocked by STP
I 02/16/23 14:05:02 00435 ports: ST1-CMDR: port 1/A2 is Blocked by LACP
I 02/16/23 14:04:50 00077 ports: ST1-CMDR: port 1/A2 in Trk1 is now off-line
I 02/16/23 13:55:42 00076 ports: ST1-CMDR: port 1/A2 in Trk1 is now on-line
I 02/16/23 13:55:42 00435 ports: ST1-CMDR: port 1/A2 is Blocked by STP
I 02/16/23 13:55:38 00435 ports: ST1-CMDR: port 1/A2 is Blocked by LACP
show lacp
1/A1 Active Trk1 Up Yes Success 0 978
1/A2 Active Trk1 Up Yes Success 0 978
2/A1 Active Trk1 Up Yes Success 0 978
2/A2 Active Trk1 Up Yes Success 0 978
show trunk
1/A1 | Ex4600 SFP+LR | Trk1 LACP
1/A2 | Ex4600 SFP+LR | Trk1 LACP
2/A1 | Ex4600 SFP+LR | Trk1 LACP
2/A2 | Ex4600 SFP+LR | Trk1 LACP
Original Message:
Sent: Feb 16, 2023 04:02 PM
From: parnassus
Subject: Problem with LACP between Aruba 3810m and Juniper EX4600
Doesn't that parameter (device-count) on the chassis section (set aggregated-devices ethernet device-count 2) define the "number of LAGs to be created on the chassis" and not the number of physical member interfaces belonging to the specific LAG ae10?
Original Message:
Sent: Feb 16, 2023 03:03 PM
From: GS55
Subject: Problem with LACP between Aruba 3810m and Juniper EX4600
Do you by chance have the aggregated device count set to 3?
Example for reference.
}
chassis {
redundancy {
graceful-switchover;
}
aggregated-devices {
ethernet {
device-count 2;
}
}
}
Original Message:
Sent: Feb 16, 2023 03:08 AM
From: GordonFresh
Subject: Problem with LACP between Aruba 3810m and Juniper EX4600
Last week I setup a LACP connection between an Aruba 3810m and a Juniper EX4600. This LACP was made up of four optical fibers.
This is my configuration on Aruba 3810m:
trunk 1/A1-1/A2,2/A1-2/A2 trk1 lacp
interface 1/A1
name "1 - LACP to EX4600"
exit
interface 1/A2
name "2 - LACP to EX4600"
exit
interface 2/A1
name "3 - LACP to EX4600"
exit
interface 2/A2
name "4 - LACP to EX4600"
exit
interface Trk1
tagged vlan 10,15,100,200
untagged vlan 1
spanning-tree priority 4
exit
This is my configuration on Juniper EX4600:
interface {
xe-2/0/14 {
description "ae10 LACP to 3810m"
ether-options {
802.3ad ae10;
}
}
xe-3/0/14 {
description "ae10 LACP to 3810m"
ether-options {
802.3ad ae10;
}
}
xe-4/0/14 {
description "ae10 LACP to 3810m"
ether-options {
802.3ad ae10;
}
}
xe-5/0/14 {
description "ae10 LACP to 3810m"
ether-options {
802.3ad ae10;
}
}
ae10 {
description "LACP to 3810m"
aggregated-ether-options {
lacp {
passive;
periodic fast;
}
}
unit 0 {
family ethernet-switching {
interface-mode trunk;
vlan {
members [ v0010 v0015 v0100 v0200 ];
}
}
}
}
}
When I connect three links out of four - LACP woks fine. But when I connect all links, it's LACP not working properly.
I observe symptoms of not working properly such as: host unreachable, packet loss and inability to connect some access devices (PC, CCTV, etc.). Additionally, only part of the AP loses connection with the Aruba 7210 controller.
As I wrote earlier, if I disable just one connection out of four it all starts working fine.
4x10G (UP) -> connection not working properly
3x10G (UP) + 1x10G (DOWN) -> connection working fine
2x10G (UP) + 2x10G (DOWN) -> connection working fine
1x10G (UP) + 3x10G (DOWN) -> connection working fine
Image Version:
Aruba 3810m: KB.16.09.0022
Juniper EX4600: JunOS 19.4R2.6
My topology:
access switches 2930f --> 3810m --> EX4600 --> Router --> ISP
AP -> access switch 2930f ---------------\
IP Phone -> access switch 2930f -------+------> 3810m ------> EX4600 <----- Aruba 7210
PC etc. -> access switch 2930f ---------/