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List:       juniper-nsp
Subject:    Re: [j-nsp] Can the QFX5100 log LACP state changes?
From:       Karl Gerhard <karl_gerh () gmx ! at>
Date:       2018-11-21 10:47:44
Message-ID: 87e0bd2c-395c-4273-9af4-da157b8f097d () gmx ! at
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Hello

thanks for the replies.
I received confimation that the messages appear just fine with 14.1X53-D40.8, so this \
seems to be just another Junos bug.

At least the following Junos versions are affected:
17.3R2
17.3R3-S1

Yes, this is the officially recommended version that's broken and no, there seems to \
be no mention of this in the release notes.

Regards
Karl






On 19.11.18 12:37, Karl Gerhard wrote:
> Hello
> 
> I need to check interfaces for LACP flaps on a QFX5100.
> On an EX4550 and EX4300 it is very easy to do that. Every LACP state change would \
> get logged and the syslog messages would look like this: Nov 16 14:44:15  \
> ex4550-test /kernel: %KERN-5-KERN_LACP_INTF_STATE_CHANGE: \
> lacp_update_state_userspace: cifd xe-0/0/16 - DETACHED state - will not carry \
> traffic Nov 16 14:44:24  ex4550-test /kernel: %KERN-5-KERN_LACP_INTF_STATE_CHANGE: \
> lacp_update_state_userspace: cifd xe-0/0/16 - ATTACHED state - acting as standby \
> link Nov 16 14:44:24  ex4550-test /kernel: %KERN-5-KERN_LACP_INTF_STATE_CHANGE: \
> lacp_update_state_userspace: cifd xe-0/0/16 - CD state - ready to carry traffic 
> However, with QFX5100 I don't see those syslog entries any more. Best thing I can \
>                 find when I disable an interface is this:
> Nov 19 11:55:48 qfx5100-test /kernel: %KERN-7: lag_set_dcd_link_state: \
>                 ifd=ge-0/0/36, ifd flags=0xc002
> Nov 19 11:55:48 qfx5100-test /kernel: %KERN-7: lag_set_dcd_link_state: DCD Down \
> received for ifd=ge-0/0/36 
> Unfortunately "ifd" refers to the physical interface that is being shut down, \
> therefore I think the message when LACP flaps without the physical interface going \
> up/down (an example for this would be packet loss) will look different (or there is \
> none at all). 
> Does anyone know whether the QFX5100 logs LACP state changes at all or whether it \
> is possible to configure that? 
> Regards
> Karl
> _______________________________________________
> juniper-nsp mailing list juniper-nsp@puck.nether.net
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