Hi Pierre,
Thanks for the info, I was able to bring up the VPP LB node, with 3 backend
servers. I used ping and telnet to verify that backend servers can be
reached using telnet or ping on the VPP LB node. I'll deal with DPDK later.
Then I tried to do the same thing on a client, VPP LB node got the request,
but did not perform the forwarding to backend server.
Below are the relevant information, let me know if you can see where did I
do wrong.
VIP is on 10.99.99.0/24 network
VPP LB Client:
10.145.207.151
I have setup route to reach VIP subnet through VPP LB node
ip route add ${VIP}/24 dev eth0
eth0 is on 10.145.207.0 (both client, VPP LB, and backend servers are
all on this subnet)
VPP LB
10.145.207.166
lb conf ip4-src-address 10.145.207.1 timeout 10
# configure VIP
lb vip ${VIP}/24 encap gre4 new_len 1024
# 3 backend servers
lb as ${VIP}/24 10.145.207.141
lb as ${VIP}/24 10.145.207.142
lb as ${VIP}/24 10.145.207.168
On backend servers (141, 142, 168)
In addition to its own host IP. I have one of the VIP (10.99.99.101)
configured on dummy device.
As mentioned, on VPP LB node, I can telnet or ping 10.99.99.101. But, I was
not able to do that on the client node.
On the VPP LB node, I used "tcpdump -n -i eth0 port 23" and can see the
income request from 10.145.207.151, wanting to reach 10.99.99.101.
But. no further response.
I wonder why VPP LB is not doing the forwarding from request coming from
the outside the node?
John
On Wed, Oct 18, 2017 at 11:40 PM, Pierre Pfister (ppfister) <
ppfis...@cisco.com> wrote:
> Hello !
>
> Great that you managed to answer your prior questions.
> Did you see this little doc: https://docs.fd.io/vpp/
> 16.12/lb_plugin_doc.html (Not very thorough, but it should help).
>
> LB does not require specific NIC. The fact that the lb plugin is loaded
> does not interfere with the NICs.
> You should look at DPDK's configuration in startup.conf file (uncomment
> and fill the dpdk section).
> Also make sure that the DPDK plugin is loaded (I wild guess based on your
> previous question might be that you moved the lb plugin into a different
> folder, and the dpdk plugin is not loaded by VPP).
>
> "lb conf <ip4-src-address>" is required to tell VPP which IPv4 source
> address to use when sending tunnelled packets.
> Since there is no return traffic with Maglev, this address does not need
> to be one of VPP's addresses. But it should be properly routable toward VPP
> to not cause drops due to ingress-filtering.
>
> Cheers,
>
> - Pierre
>
>
>
>
>
> Le 19 oct. 2017 à 04:34, John Wei <johnt...@gmail.com> a écrit :
>
> Hi Pierre,
> Sorry for the spam, I made further progress and don't want to waste your
> time answering questions that I already found answer.
> - Once I got lb pluging loaded properly, I was able to configure it using
> vppctl
> Remaining questions:
> - why I am got just "local0" device from "vppctl show int"? Does VPP LB
> require special NIC? How about DPDK?
> - Do I need to set "vppctl lb conf <ip4-src-address>"? Should that be the
> IP of the host where VPP LB is run?
>
> John
>
>
> On Wed, Oct 18, 2017 at 6:08 PM, John Wei <johnt...@gmail.com> wrote:
>
>> Hi Pierre,
>> I made further progress.
>> I did the "rpm -i vpp-plugins-17.07.01-release.x86_64.rpm", and got
>> plugin installed.
>> I updated the /etc/vpp/startup.conf file, and how I can see plugins using
>> "vppctl show plugins".
>> My questions remains are:
>> - how to configure lb and what is the syntax
>> - instead of load all the plugins in /usr/lib/vpp_plugins/, how to
>> configure and load just one plugin?
>>
>> John
>>
>>
>>
>> On Wed, Oct 18, 2017 at 5:35 PM, John Wei <johnt...@gmail.com> wrote:
>>
>>> Hi Pierre,
>>> I was using "yum install vpp and vpp-lib" and there was no plugins.
>>> Now I build the whole vpp source, including plugins, and added
>>> plugin_path /<home_dir>/vpp/extras/rpm/vpp-17.07.01/build-root/build-vpp
>>> -native/vpp/plugins
>>> to /etc/vpp/startup.conf file. Then restarted vpp.service.
>>> Now
>>> - how to do know that VPP lb plugin is loaded
>>> - I still cant find the "lb" command. I guess it is really not a
>>> command. But, where I need to add these "lb" configuration and what is the
>>> syntax?
>>> - In the monitoring section, it mentioned "show lb, show lv vips, .."
>>> Are they subcommands for vppctl? I tried and it does not work.
>>>
>>> John
>>>
>>>
>>> On Tue, Oct 3, 2017 at 11:19 PM, Pierre Pfister (ppfister) <
>>> ppfis...@cisco.com> wrote:
>>>
>>>> Do you start VPP with the 'make run' command ?
>>>>
>>>> It looks like the way you start VPP, it doesn't specify the righ
>>>> plugins directory.
>>>> I'd suggest your try with adding "plugin_path
>>>> </path/to/plugin/directory>" to VPP's command-line arguments.
>>>>
>>>> - Pierre
>>>>
>>>>
>>>> Le 3 oct. 2017 à 20:40, John Wei <johnt...@gmail.com> a écrit :
>>>>
>>>> Pierre,
>>>> Thanks for the response.
>>>> I follow instructions to install VPP:
>>>> https://wiki.fd.io/view/VPP/Installing_VPP_binaries_from_packages
>>>> That gives me vpp utility. There is no lb command.
>>>> I did a build of vpp by follow the instructions below to build vpp on
>>>> linux
>>>> https://wiki.fd.io/view/VPP/Pulling,_Building,_Running,_Hack
>>>> ing_and_Pushing_VPP_Code#Linux
>>>> I found "lb" in the plugins directory.
>>>>
>>>> But, how to bring up vpp with lb plugin? I hoping to see some
>>>> instructions that I can follow to try this VPP lb.
>>>>
>>>> John
>>>>
>>>>
>>>> On Sun, Oct 1, 2017 at 11:55 PM, Pierre Pfister (ppfister) <
>>>> ppfis...@cisco.com> wrote:
>>>>
>>>>> Hello John,
>>>>>
>>>>> The LB plugin comes with VPP by default (no need for additional
>>>>> download, sources are in src/plugins/lb).
>>>>>
>>>>> As far as instructions are concerned, I am afraid the link you pointed
>>>>> to is all there is for now.
>>>>> But please ask if you feel like something in particular is missing.
>>>>>
>>>>> - Pierre
>>>>>
>>>>>
>>>>>
>>>>> Le 30 sept. 2017 à 00:07, John Wei <johnt...@gmail.com> a écrit :
>>>>>
>>>>> I saw a VPP Load Balancer mentioned in this document:
>>>>>
>>>>> https://docs.fd.io/vpp/17.07/lb_plugin_doc.html
>>>>>
>>>>> But, I did not see installation information.
>>>>> Can someone point me to where I can get download and setup
>>>>> instructions?
>>>>>
>>>>> Thanks
>>>>> John
>>>>>
>>>>> _______________________________________________
>>>>> vpp-dev mailing list
>>>>> vpp-dev@lists.fd.io
>>>>> https://lists.fd.io/mailman/listinfo/vpp-dev
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>
>
>
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