Hi Neale,
Thank you so much. I will try to explore today and get back to you.
mean while, Is it that FIB walk is going through loop due to wrong fib objects
or may be we are not destroying the object once processed?
This issue happens only with mpls i.e inner and outer VRFs.
With Regards
Date: Monday, 21 March 2022 at 11:13
To: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] vpp hangs with bfd configuration along with mpls (inner
and outer ctxt)
Hi Neale,
Thank you so much for extending the help.
I am not sure how do I run/configure unit test. I can try If you can
Hi Neale,
Thank you so much for extending the help.
I am not sure how do I run/configure unit test. I can try If you can provide me
steps to configure VRFs using VL APIs in unit test framework.
We can have a call to discuss?
With Regards
Sastry
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Hi Sastry,
If you can reproduce it with a unit test, I’ll look into it.
/neale
From: vpp-dev@lists.fd.io on behalf of Sastry Sista via
lists.fd.io
Date: Thursday, 17 March 2022 at 10:07
To: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] vpp hangs with bfd configuration along with mpls (inner
Hi Rajith,
Thank you for the help. Even I suspect some issue with mpls forward route.
Could you pls check below?
Labelled route:
vpp# show mpls fib 16
MPLS, fib_index:0 locks:[API:5, ]
16:eos/21 fib:0 index:403 locks:2
API refs:1 entry-flags:uRPF-exempt, src-flags:added,contributing,active,
Hi Rajith,
One more imp point here is, when you say " mpls php route without eos" , this
looks like into mpls fib table 0 and my issue is on inner context or inner data
packet.
here Eth interface is more on outer context and IP is inner
context (VRF). I guess we see issue in VRF.
Could you
HI Sastry,
For VPN v4 session, labelled IPvx route(for ingressing) and mpls route(for
egressing) need to be set up. Can you check if they are getting
programmed correctly into VPP. The Labeled route seems to be OK from the
o/p you have pasted.
Thanks,
Rajith
On Fri, Mar 18, 2022 at 10:58 AM
Hi Rajith,
Thank you for the clues but, I am not sure how a route can resolve this issue?
I do not have any data traffic when we see this issue. Just a bgp is up with
vpnv4/vpnv6 and configured follower bfd.
Due to BFD events up/down, its calling adj_bfd_notify which goes through VRF
table i.e
Hi Sastry,
The loop issue with BFD in our case we resolved by installing mpls php
route with eos. Earlier we had installed the mpls php route without eos.
Our case was mpls php with IPv4 forward. However from the config you shared
your case seems to be with MPLS ingress??
Thanks,
Rajith
On
Hi VPP Experts,
Neale try to guide us on this mpls features but, I am not sure if he is around
or may be busy. We are stuck on mpls along with BFD protection.
This is very consistent looping and due to which all the watchdog timers are
getting expired and no clue if its fixed in later releases
Hi Neale,
The same issue is report little while ago:
vpp-dev@lists.fd.io | Infinite loop in fib_walk_sync (
https://lists.fd.io/g/vpp-dev/topic/83599549#19589 )
Could you please check if its fixed or worked around?. I see that its loop of
vrfs i.e outter and inner context associated and its
Hi Neale,
Could you please help me on this. I am using fdio 21.06. Some one reported the
same issue and there is no clarity further on this.
With Regards
Sastry
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View/Reply Online (#21045):
Hi Vpp Expert,
Could you please help me on the below vpp hang issue while running below
configuration:
Developed App using VPP APIs for the below commands:
set int mpls VirtualFuncEthernet0/8/0.1800 enable
ip table add 2
ip route add table 2 1.1.1.1/32 via 107.243.21.116
and Regards,
Sudhir
On Thu, Jun 10, 2021 at 9:07 PM Neale Ranns wrote:
>
>
>
>
> *From: *vpp-dev@lists.fd.io on behalf of Sudhir CR
> via lists.fd.io
> *Date: *Thursday, 10 June 2021 at 08:50
> *To: *vpp-dev@lists.fd.io
> *Subject: *[vpp-dev] vpp hangs with bfd configurat
From: vpp-dev@lists.fd.io on behalf of Sudhir CR via
lists.fd.io
Date: Thursday, 10 June 2021 at 08:50
To: vpp-dev@lists.fd.io
Subject: [vpp-dev] vpp hangs with bfd configuration
Hi All,
when we are trying to establish a BFD session between two containers while
processing "adj_bfd_n
Hi Sudhir,
this looks like a FIB code issue, even though it manifests when using BFD.
Last I knew, Neale was the FIB guy, not sure who is now…
Thanks,
Klement
> On 10 Jun 2021, at 08:50, Sudhir CR via lists.fd.io
> wrote:
>
> Hi All,
> when we are trying to establish a BFD session between
Hi All,
when we are trying to establish a BFD session between two containers while
processing "adj_bfd_notify '' VPP went into an infinite loop and hung in
one of the containers, and this issue is reproducible every time with below
topology and configuration.
Any help in fixing the issue would
Hi Team,
when we are trying to establish a BFD session between two containers while
processing "adj_bfd_notify '' * VPP went into an infinite loop and hung *in
one of the containers, and this issue is reproducible every time with below
topology and configuration.
Any help in fixing the issue
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