Thanks Tim for posting
I assume this is the
Distribution Function policy from IP to Port
Will it make a difference on only 6 hosts ?
Regards
Andrew
From: tmac <tmacmd@gmail.com>
Sent: 30 October 2024 01:29
To: Andrew Hancock <andrew.hancock@cyrus-consultants.co.uk>
Cc: toasters@teaparty.net
Subject: Re: LACP configuration with NetApp FAS2820
FYI, when you have LOTS of clients, you have better distribution from the NetApp using "port" instead of IP
On Tue, Oct 29, 2024 at 9:11 PM Andrew Hancock <andrew.hancock@cyrus-consultants.co.uk> wrote:
Yes thanks to John, I went away and had a look at configs, and yes Michael correct, the LAG was not up across the switches!
I had a rethink, on the MC-LAG between the switches as these use VLT
And I'd left a command out!
So this is, with the correct command
vlt port channel 1
Thanks for the sounding board guys!
Re-test later today against the test-plan, still not sure how it was working before!
Regards
Andrew
Node: NA-2820-A-01
Interface Group Name: a0a
Distribution Function: ip
Create Policy: multimode_lacp
MAC Address: d2:39:ea:be:45:cf
Port Participation: full
Network Ports: e1a, e1b, e1c, e1d
Up Ports: e1a, e1b, e1c, e1d
Down Ports: -
Node: NA-2820-A-02
Interface Group Name: a0a
Distribution Function: ip
Create Policy: multimode_lacp
MAC Address: d2:39:ea:be:43:f1
Port Participation: partial
Network Ports: e1a, e1b, e1c, e1d
Up Ports: e1a, e1c
Down Ports: e1b, e1d
2 entries were displayed.
-----Original Message-----
From: Fenn, Michael <Michael.Fenn@DEShawResearch.com>
Sent: 30 October 2024 00:59
To: Andrew Hancock <andrew.hancock@cyrus-consultants.co.uk>
Cc: toasters@teaparty.net
Subject: Re: LACP configuration with NetApp FAS2820
On the Dell side, you'd need to configure VLT on the port-channels in order to have both switches participate the same LACP bond. Assuming they're running DNOS10, here's the link to the config guide: https://www.dell.com/support/kbdoc/en-us/000102901/dell-emc-networking-os10-how-to-set-up-virtual-link-trunking-vlt.
Thanks,
Michael
On 10/29/24, 8:30 PM, "Andrew Hancock" <andrew.hancock@cyrus-consultants.co.uk <mailto:andrew.hancock@cyrus-consultants.co.uk>> wrote:
This message was sent by an external party.
Ah! I think I see the reason for Partial now
Although, not sure how this is working against the test plan!
NA-2820-A::> ifgrp show
Port Distribution Active
Node IfGrp Function MAC Address Ports Ports
-------- ---------- ------------ ----------------- ------- -------------------
NA-2820-A-01
a0a ip d2:39:ea:be:45:cf partial e1a, e1b, e1c, e1d
NA-2820-A-02
a0a ip d2:39:ea:be:43:f1 partial e1a, e1b, e1c, e1d
2 entries were displayed.
NA-2820-A::> ifgrp show -instance
Node: NA-2820-A-01
Interface Group Name: a0a
Distribution Function: ip
Create Policy: multimode_lacp
MAC Address: d2:39:ea:be:45:cf
Port Participation: partial
Network Ports: e1a, e1b, e1c, e1d
Up Ports: e1a, e1c
Down Ports: e1b, e1d
Node: NA-2820-A-02
Interface Group Name: a0a
Distribution Function: ip
Create Policy: multimode_lacp
MAC Address: d2:39:ea:be:43:f1
Port Participation: partial
Network Ports: e1a, e1b, e1c, e1d
Up Ports: e1a, e1c
Down Ports: e1b, e1d
2 entries were displayed.
And those Down Ports, or though appearing as up on the switches, are on the second switch, so the LACP port channel is not LAG across both switches.
interface port-channel1
description NA-2820-A-01-LAG
no shutdown
switchport access vlan 2033
mtu 9216
lacp fallback enable
lacp fallback timeout 1
!
interface port-channel2
description NA-2820-A-02-LAG
no shutdown
switchport access vlan 2033
mtu 9216
lacp fallback enable
lacp fallback timeout 1
interface ethernet1/1/7
description "NA-2820-A-01 e1a"
no shutdown
channel-group 1 mode active
no switchport
mtu 9216
flowcontrol receive off
!
interface ethernet1/1/8
description "NA-2820-A-02 e1a"
no shutdown
channel-group 2 mode active
no switchport
flowcontrol receive off
!
interface ethernet1/1/9
--more-- description "NA-2820-A-01 e1c"
no shutdown
channel-group 1 mode active
no switchport
flowcontrol receive off
!
interface ethernet1/1/10
description "NA-2820-A-02 e1c"
no shutdown
channel-group 2 mode active
no switchport
flowcontrol receive off
!
nterface port-channel1
description NA-2820-A-01-LAG
no shutdown
switchport access vlan 2033
mtu 9216
lacp fallback enable
lacp fallback timeout 1
--more--!
interface port-channel2
description NA-2820-A-02-LAG
no shutdown
switchport access vlan 2033
mtu 9216
lacp fallback enable
lacp fallback timeout 1
interface ethernet1/1/7
description "NA-2820-A-01 e1b"
no shutdown
channel-group 1 mode active
no switchport
mtu 9216
flowcontrol receive off
!
interface ethernet1/1/8
description "NA-2820-A-02 e1b"
no shutdown
channel-group 2 mode active
no switchport
flowcontrol receive off
!
interface ethernet1/1/9
description "NA-2820-A-01 e1d"
--more-- no shutdown
channel-group 1 mode active
no switchport
flowcontrol receive off
!
interface ethernet1/1/10
description "NA-2820-A-02 e1d"
no shutdown
channel-group 2 mode active
no switchport
flowcontrol receive off
Thanks
-----Original Message-----
From: John Stoffel <john@stoffel.org <mailto:john@stoffel.org>>
Sent: 29 October 2024 20:06
To: Andrew Hancock <andrew.hancock@cyrus-consultants.co.uk <mailto:andrew.hancock@cyrus-consultants.co.uk>>
Cc: toasters@teaparty.net <mailto:toasters@teaparty.net>
Subject: Re: LACP configuration with NetApp FAS2820
>>>>> "Andrew" == Andrew Hancock <andrew.hancock@cyrus-consultants.co.uk <mailto:andrew.hancock@cyrus-consultants.co.uk>> writes:
> Anyone here on this list familiar with Dell 4840-ON and Port Channel
> LACP configurations with two node FAS2820
Not with the Dell side, but the Netapp side.
> Usually by network is good (he says! 😊
So what's your configuration look like?
> It’s definitely not working as expected, e.g. fail a port and access
> is lost, so somethings not right, and I’m wondering if the SVM which
> is attached to current port e1a, is the issue, and it should be
> connected to the trunk a0a, or a0a-2033 – the VLAN
We need more details. But start at the bottom. Can you show:
ifgrp show -instance
The key would be to see if the LACP policy agrees on both ends.
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