Hi Varun,
Thank you so much for using this application!
..but I'm sorry it has some buggy behavior because I implemented it
experimental...
> The module is fine works correctly. The only thing required for it to work was
> just to enable 'ipv6'. As soon as I enabled it started working fine, already
> tested it with more than two vm and more than 5 hosts connected.*Please
include
> in documentation that 'ipv6' is required to be enabled for BGP to work
> correctly.* Also the 'EventOFPErrorMsg ' disappeared once bgp was enabled.
Hope
> you find why it doesn't work only with 'ipv4'.
>
> I was using Mininet VM and they have ipv6 disabled by default, so I had no
> reason to believe that 'ipv6' could be culprit here. I went through some old
> threads on the devel group where bgp was failing and you suggested to enable
> 'ipv6', that where I got hint it might be the issue.
Thanks for reporting this issue!
Just to confirm, you mean the following setting which Mininet does at its
installation?
https://github.com/mininet/mininet/blob/f65e1ab9361632f8ba83b296e27f1fecc257d4f9/util/install.sh#L615-L639
I will add some descriptions as you said and will investigate why "disable IPv6"
settings cause this issue.
> Also you can include one more thing in documentation to make switches in
> mininet via this command 's1 = self.addSwitch('s1', dpid="1",
> protocols='OpenFlow13')' , this helps in eliminating one more OpenFlow13 error
> message from debug logs.
>
> The module was tested with Ryu:4.19 and ovs: 2.6
Yeah! I will include the OpenFlow version and the tested version of Ryu, OVS and
Mininet on the document!
Thanks a lot!
I will post the patch later!
Thanks,
Iwase
On 2017年11月30日 16:47, Varun Amrutiya wrote:
Hi Iwase,
First of all, this is a very good module that you have written in Ryu. Simply
perfect.
The module is fine works correctly. The only thing required for it to work was
just to enable 'ipv6'. As soon as I enabled it started working fine, already
tested it with more than two vm and more than 5 hosts connected.*Please include
in documentation that 'ipv6' is required to be enabled for BGP to work
correctly.* Also the 'EventOFPErrorMsg ' disappeared once bgp was enabled. Hope
you find why it doesn't work only with 'ipv4'.
I was using Mininet VM and they have ipv6 disabled by default, so I had no
reason to believe that 'ipv6' could be culprit here. I went through some old
threads on the devel group where bgp was failing and you suggested to enable
'ipv6', that where I got hint it might be the issue.
Also you can include one more thing in documentation to make switches in
mininet via this command 's1 = self.addSwitch('s1', dpid="1",
protocols='OpenFlow13')' , this helps in eliminating one more OpenFlow13 error
message from debug logs.
The module was tested with Ryu:4.19 and ovs: 2.6
Regards,
Varun.
On Thu, Nov 30, 2017 at 12:55 PM, Iwase Yusuke <iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>> wrote:
Hi Varun,
I'm very sorry for the delay.
Would you mind including the Ryu-devel mailing list?
I've tested rest_vtep.py on my environment, I couldn't reproduce your
issue...
I used my Docker image which has Mininet and Ryu, and I create the topology
which has 3 nodes and each node has 2 Mininet hosts.
Docker Image:
https://hub.docker.com/r/iwaseyusuke/ryu-mininet/
<https://hub.docker.com/r/iwaseyusuke/ryu-mininet/>
Version of OVS, Mininet and Ryu included in the above Docker image:
root@a96d42869486:~# ovs-vsctl --version
ovs-vsctl (Open vSwitch) 2.5.2 # this is apt packaged version on Ubuntu
16.04
Compiled Oct 17 2017 16:38:57
DB Schema 7.12.1
root@a96d42869486:~# mn --version
2.2.1 # this is apt packaged version on Ubuntu 16.04
root@a96d42869486:~# ryu --version
ryu 4.19
Topology:
+---------------+ +---------------+
| node1 | | node2 |
| +-----------+ | | +-----------+ |
| | s1 +----(Linux)----+ s1 | |
| +-+------+--+ | (Bridge) | +-+------+--+ |
| | | | | | | | |
| +-+--+ +-+--+ | | | +-+--+ +-+--+ |
| | h1 | | h2 | | | | | h1 | | h2 | |
| +----+ +----+ | | | +----+ +----+ |
+---------------+ | +---------------+
|
|
+---------------+
| node3 |
| +-----------+ |
| | s1 | |
| +-+------+--+ |
| | | |
| +-+--+ +-+--+ |
| | h1 | | h2 | |
| +----+ +----+ |
+---------------+
> *EventOFPErrorMsg received.*
> *version=0x4, msg_type=0x1, msg_len=0x4c, xid=0xde4e44b*
> * `-- msg_type: OFPT_ERROR(1)*
> *OFPErrorMsg(type=0x2, code=0xf,
>
data=b'\x04\x0e\x01\x00\x0d\xe4\xe4\x4b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x2c\x80\x00\x05\x10\x00\x00\x00\x00\x00\x00\x00\x0a')*
> * |-- type: OFPET_BAD_ACTION(2)*
> * |-- code: OFPBAC_BAD_SET_ARGUMENT(15)*
> * `-- data: version=0x4, msg_type=0xe, msg_len=0x100, xid=0xde4e44b*
> * `-- msg_type: OFPT_FLOW_MOD(14)*
The above message shows the argument of SET_FIELD action is invalid (e.g.,
exceeds the rage), so your OVS cannot accept the flows which rest_vetp.py
tried
to install...
Thanks,
Iwase
On 2017年11月24日 04:35, AMRUTIYA VARUN ALPESHKUMAR wrote:
Hi,
Can ipv6 being disabled be the issue ?
regards,
Varun.
On Fri, Nov 24, 2017 at 12:57 AM, AMRUTIYA VARUN ALPESHKUMAR
<h20170...@pilani.bits-pilani.ac.in
<mailto:h20170...@pilani.bits-pilani.ac.in>
<mailto:h20170...@pilani.bits-pilani.ac.in
<mailto:h20170...@pilani.bits-pilani.ac.in>>> wrote:
Hi,
(rest_vtep.sh)
Finally narrowed it down to one step.
The error is of openflow, it occurs when a client tries to register
itself
to the switch and 'add_client' is called.
The error msg, Issue with BGP libray probably, (i think in vpn.py
L111)
New best path selected for destination Destination(table:
Table(scope_id:
65000:10, rf: RouteFamily(afi=25,safi=70)), nlri:
EvpnMacIPAdvertisementNLRI(esi=EvpnArbitraryEsi(type=0,value='\x00\x00\x00\x00\x00\x00\x00\x00\x00'),ethernet_tag_id=0,ip_addr='10.0.0.21',ip_addr_len=32,length=37,mac_addr='aa:bb:cc:00:00:21',mac_addr_len=48,route_dist='65000:10',type=2),
paths: 1, withdraws: 0, new paths: 0)
*EVENT ofp_event->ofctl_service EventOFPErrorMsg*
*EventOFPErrorMsg received.*
*version=0x4, msg_type=0x1, msg_len=0x4c, xid=0xde4e44b*
* `-- msg_type: OFPT_ERROR(1)*
*OFPErrorMsg(type=0x2, code=0xf,
data=b'\x04\x0e\x01\x00\x0d\xe4\xe4\x4b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x2c\x80\x00\x05\x10\x00\x00\x00\x00\x00\x00\x00\x0a')*
* |-- type: OFPET_BAD_ACTION(2)*
* |-- code: OFPBAC_BAD_SET_ARGUMENT(15)*
* `-- data: version=0x4, msg_type=0xe, msg_len=0x100,
xid=0xde4e44b*
* `-- msg_type: OFPT_FLOW_MOD(14)*
*unknown error xid 233104459*
Sent msg to ('192.168.56.102', '179') >>
BGPKeepAlive(len=19,type=4)
Received msg from ('192.168.56.102', '179') <<
BGPKeepAlive(len=19,type=4)
Sent msg to ('192.168.56.102', '179') >>
BGPKeepAlive(len=19,type=4)
Received msg from ('192.168.56.102', '179') <<
BGPKeepAlive(len=19,type=4)
Hope you'll fix the error.
Regards,
Varun
On Thu, Nov 23, 2017 at 7:54 PM, AMRUTIYA VARUN ALPESHKUMAR
<h20170...@pilani.bits-pilani.ac.in
<mailto:h20170...@pilani.bits-pilani.ac.in>
<mailto:h20170...@pilani.bits-pilani.ac.in
<mailto:h20170...@pilani.bits-pilani.ac.in>>> wrote:
Hi,
Tested the rest_vtep with ovs 2.6.0 and ryu versions {4.5, 4.6,
4.7,
4.8, 4.9} and {4.17, 4.19}. Ping is still failing. Pls mention
the
environment properties on which this file was tested. Can't
find anyone
online who might have used the same script.
Also, Once it start in switches it adds all the flows except
arp
response flow. Why is that ? according to ur thread on
ryu-devel it
should. This seems the main reason for arp failing.
Regards,
Varun.
On Thu, Nov 23, 2017 at 2:52 PM, AMRUTIYA VARUN ALPESHKUMAR
<h20170...@pilani.bits-pilani.ac.in
<mailto:h20170...@pilani.bits-pilani.ac.in>
<mailto:h20170...@pilani.bits-pilani.ac.in
<mailto:h20170...@pilani.bits-pilani.ac.in>>> wrote:
Hi,
I was using the rest_vtep.py for making the topology as
presented in
the example given in ryu website.
But my ping keeps failing, After doing a lot of
troubleshooting and
verifying all properties are same as given in example, in
verbose
mode I found the following error which might give you
insight. I am
trying to implement the same example with three VM instead
of 2.
What is the ovs version it requires to work ? Mine is 2.0.2
can this
be problem. Using mininet VM.
ryu-version: 4.18
I would be very gratefull if you can tell me the required
versions.
Attached the logs if they can give insight.
Sry for not using ryu-devel, souceforge is blocked on my
network.
(On a tight deadline, if you can help)
Regards,
Varun.
M.E Grad
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