OK, let me see if I can repro it...
From: Brendan Kelly <[email protected]>
Sent: Wednesday, October 3, 2018 6:03 PM
To: Dave Barach (dbarach) <[email protected]>
Cc: [email protected]
Subject: Re: [vpp-dev] WRED
This is what I gathered. I need to figure out how to get on Jira.
vpp# show version verbose
Version: v18.10-rc0~553-g2f54c27
Compiled by: root
Compile host: o2.opiehome.com
Compile date: Tue Oct 2 16:58:15 MDT 2018
Compile location: /root/source/vpp/vpp
Compiler: GCC 7.3.1 20180303 (Red Hat 7.3.1-5)
Current PID: 5871
vpp# create bridge-domain 1
bridge-domain 1
vpp# show interface
Name Idx State MTU (L3/IP4/IP6/MPLS)
Counter Count
TenGigabitEthernet82/0/0 1 down 9000/0/0/0
TenGigabitEthernet82/0/1 2 down 9000/0/0/0
local0 0 down 0/0/0/0
vpp# set interface state TenGigabitEthernet82/0/0 up
vpp# set interface state TenGigabitEthernet82/0/1 up
vpp# set interface l2 bridge TenGigabitEthernet82/0/0 1
vpp# set interface l2 bridge TenGigabitEthernet82/0/1 1
vpp# set nsim delay 10 ms bandwidth 10.1 gbit packet-size 128
Configured link delay 10.00 ms, 20.00 ms round-trip
Sim uses 26304512 bytes per thread, 157827072 bytes total
vpp# nsim enable-disable TenGigabitEthernet82/0/0 TenGigabitEthernet82/0/1
vpp# show nsim
Network simulator cross-connects TenGigabitEthernet82/0/0 and
TenGigabitEthernet82/0/1
...inserting link delay of 10.00 ms, 20.00 ms round-trip
vpp# show interface
Name Idx State MTU (L3/IP4/IP6/MPLS)
Counter Count
TenGigabitEthernet82/0/0 1 up 9000/0/0/0 rx packets
16299
rx bytes
20247116
tx packets
23927
tx bytes
22969807
drops
2407
TenGigabitEthernet82/0/1 2 up 9000/0/0/0 rx packets
23946
rx bytes
22972583
tx packets
16239
tx bytes
20206975
drops
3549
local0 0 down 0/0/0/0
vpp# set nsim delay 50 ms bandwidth 10.1 gbit packet-size 128
Program received signal SIGSEGV, Segmentation fault.
_dl_fixup (l=0x6df680, reloc_arg=28) at ../elf/dl-runtime.c:71
71 const char *strtab = (const void *) D_PTR (l, l_info[DT_STRTAB]);
(gdb)
On Wednesday, October 3, 2018, 8:48:01 AM MDT, Dave Barach via Lists.Fd.Io
<[email protected]<mailto:[email protected]>> wrote:
Please send a backtrace. Here are some general bug reporting suggestions:
https://wiki.fd.io/view/VPP/BugReports.
I’ve certainly reconfigured the simulator with traffic flowing without having
the wheels fall off, but the code is brand-new.
Thanks... Dave
From: Brendan Kelly <[email protected]<mailto:[email protected]>>
Sent: Wednesday, October 3, 2018 10:39 AM
To: [email protected]<mailto:[email protected]>
Cc: Dave Barach (dbarach) <[email protected]<mailto:[email protected]>>;
[email protected]<mailto:[email protected]>
Subject: Re: [vpp-dev] WRED
Hello Dave, if you change the nsim delay values on the fly it appears vpp
crashes and all the state is lost.
Is this supported? Should I file a bug?
If so what logs should I attach?
On Oct 3, 2018, at 08:07, Brendan Kelly via Lists.Fd.Io
<[email protected]<mailto:[email protected]>>
wrote:
Ok, thanks for the input. I have it working.
vpp# create bridge-domain 1
bridge-domain 1
vpp# show b
bfd bier bond bridge-domain buffers
vpp# show bridge-domain 1
BD-ID Index BSN Age(min) Learning U-Forwrd UU-Flood Flooding
ARP-Term BVI-Intf
1 1 0 off on on flood on
off N/A
vpp# set interface l2 bridge TenGigabitEthernet82/0/0 1
vpp# set interface l2 bridge TenGigabitEthernet82/0/1 1
vpp# set nsim delay 10 ms bandwidth 10.1 gbit packet-size 128
Configured link delay 10.00 ms, 20.00 ms round-trip
Sim uses 26304512 bytes per thread, 157827072 bytes total
vpp# nsim enable-disable TenGigabitEthernet82/0/0 TenGigabitEthernet82/0/1
vpp# show nsim
Network simulator cross-connects TenGigabitEthernet82/0/0 and
TenGigabitEthernet82/0/1
...inserting link delay of 10.00 ms, 20.00 ms round-trip
On Wednesday, October 3, 2018, 7:19:00 AM MDT, Dave Barach via Lists.Fd.Io
<[email protected]<mailto:[email protected]>> wrote:
It would be easy enough for the delay simulator to enable/disable promiscuous
mode. But it’s handy to bridge the pipes: traffic flows whether or not the
delay simulation is enabled.
D.
From: [email protected]<mailto:[email protected]>
<[email protected]<mailto:[email protected]>> On Behalf Of Dave Barach via
Lists.Fd.Io
Sent: Wednesday, October 3, 2018 9:09 AM
To: Brendan Kelly <[email protected]<mailto:[email protected]>>;
[email protected]<mailto:[email protected]>
Cc: [email protected]<mailto:[email protected]>
Subject: Re: [vpp-dev] WRED
Put the interfaces in an L2 bridge group, or they won’t be in promiscuous
mode...
Here’s a config that I use a bunch:
set int l2 bridge FortyGigabitEthernet86/0/1 1
set int state FortyGigabitEthernet86/0/1 up
set int l2 bridge TenGigabitEthernetd/0/0 1
set int state TenGigabitEthernetd/0/0 up
bin nsim_configure delay 10 ms bandwidth 10.1 gbit packet-size 128
bin nsim_enable_disable FortyGigabitEthernet86/0/1 TenGigabitEthernetd/0/0
HTH... Dave
From: Brendan Kelly <[email protected]<mailto:[email protected]>>
Sent: Tuesday, October 2, 2018 10:03 PM
To: [email protected]<mailto:[email protected]>; Dave Barach (dbarach)
<[email protected]<mailto:[email protected]>>
Subject: Re: [vpp-dev] WRED
Hello Dave, doesn't appear to forward. My ARP packets are not being forwarded.
I assume in this cross connect any packet in an interface is sent out the
other interface and vice versa?
Anything special needed in the startup.conf?
vpp# show nsim
Network simulator cross-connects TenGigabitEthernet82/0/0 and
TenGigabitEthernet82/0/1
...inserting link delay of 200.00 ms, 400.00 ms round-trip
On Tuesday, October 2, 2018, 6:00:42 AM MDT, Dave Barach via Lists.Fd.Io
<[email protected]<mailto:[email protected]>> wrote:
With respect to delay / loss impairments, please have a look at the “nsim”
plugin: src/plugins/nsim.
From: <[email protected]<mailto:[email protected]>> on behalf of
"brendanakelly via Lists.Fd.Io"
<[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Date: Monday, October 1, 2018 at 6:18 PM
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Cc: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: [vpp-dev] WRED
I am looking to setup vpp with WRED. I am not sure how the WRED profiles are
configured. I have hqos with 2 interfaces working in a bridge-domain and now
want to enable WRED.
My overall goal is to simulate the Linux tc "traffic control" application to
run impairments such as delay and packet loss.
-=-=-=-=-=-=-=-=-=-=-=-
Links: You receive all messages sent to this group.
View/Reply Online (#10730): https://lists.fd.io/g/vpp-dev/message/10730
Mute This Topic: https://lists.fd.io/mt/26596674/1432032
Group Owner: [email protected]<mailto:[email protected]>
Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub
<https://lists.fd.io/g/vpp-dev/unsub%20>
[[email protected]<mailto:[email protected]>]
-=-=-=-=-=-=-=-=-=-=-=-
-=-=-=-=-=-=-=-=-=-=-=-
Links: You receive all messages sent to this group.
View/Reply Online (#10741): https://lists.fd.io/g/vpp-dev/message/10741
Mute This Topic: https://lists.fd.io/mt/26596674/1432032
Group Owner: [email protected]<mailto:[email protected]>
Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub
<https://lists.fd.io/g/vpp-dev/unsub%20>
[[email protected]<mailto:[email protected]>]
-=-=-=-=-=-=-=-=-=-=-=-
-=-=-=-=-=-=-=-=-=-=-=-
Links: You receive all messages sent to this group.
View/Reply Online (#10742): https://lists.fd.io/g/vpp-dev/message/10742
Mute This Topic: https://lists.fd.io/mt/26596674/1432032
Group Owner: [email protected]<mailto:[email protected]>
Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub
[[email protected]<mailto:[email protected]>]
-=-=-=-=-=-=-=-=-=-=-=-
-=-=-=-=-=-=-=-=-=-=-=-
Links: You receive all messages sent to this group.
View/Reply Online (#10744): https://lists.fd.io/g/vpp-dev/message/10744
Mute This Topic: https://lists.fd.io/mt/26596674/1432032
Group Owner: [email protected]<mailto:[email protected]>
Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub
<https://lists.fd.io/g/vpp-dev/unsub%20>
[[email protected]<mailto:[email protected]>]
-=-=-=-=-=-=-=-=-=-=-=-
-=-=-=-=-=-=-=-=-=-=-=-
Links: You receive all messages sent to this group.
View/Reply Online (#10750): https://lists.fd.io/g/vpp-dev/message/10750
Mute This Topic: https://lists.fd.io/mt/26596674/21656
Group Owner: [email protected]
Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [[email protected]]
-=-=-=-=-=-=-=-=-=-=-=-
