Hi Hadem,
*How can i call my "neighbor_get()"function after the update messages are
received from the neighbor?. can we use any event to achieve this or any other
ways?.*
Originally, when do you need to call "neighbor_get()" function?
Every after the update message received? Periodically per N seconds?
To achieve the former one, unfortunately, now Ryu has no event for such, only
for notifying;
- best patch changed due to new UPDATE received
- peer up or down
https://github.com/osrg/ryu/blob/8287e3513a780c2dbfe3003f6b632d819a0e792c/ryu/services/protocols/bgp/application.py#L145-L147
For the latter one, how about spawn a new thread which calls "neighbor_get()"
periodically?
FYI, "application.py" can be integrated with your own application without
directly modifying "application.py".
http://ryu-iwase.readthedocs.io/en/doc-services_protocols_bgp_application/app/bgp_application.html#integration-with-other-applications
Please note the above link is temporary, because this document is under
reviewing on Ryu-devel and not yet merged to upstream. When merged, you can read
this document from the "official" Ryu Documentation page.
Thanks,
Iwase
On 2018年01月19日 01:55, Pynbiang Hadem wrote:
*Hi Iwase,*
*
*
*Yes you are right. The update messages from neighbor (10.0.0.2) was received
much later as can be seen in the output log file(BGPTest-h1.py) attached herewith.*
*The update message received is as below:*
/Received msg from ('10.0.0.2', '55930') <<
BGPUpdate(len=106,nlri=[],path_attributes=[BGPPathAttributeMpReachNLRI(afi=2,flags=128,length=49,next_hop='::ffff:10.0.0.2',nlri=[LabelledVPNIP6AddrPrefix(addr=([101],
BGPTwoOctetAsRD(admin=65002,assigned=150,type=0),
'2001:db8:2::'),length=152)],safi=128,type=14),
BGPPathAttributeOrigin(flags=64,length=1,type=1,value=2),
BGPPathAttributeAsPath(flags=64,length=6,type=2,value=[[65002]]),
BGPPathAttributeMultiExitDisc(flags=128,length=4,type=4,value=100),
BGPPathAttributeExtendedCommunities(communities=[BGPTwoOctetAsSpecificExtendedCommunity(as_number=65002,local_administrator=150,subtype=2,type=0)],flags=192,length=8,type=16)],total_path_attribute_len=83,type=2,withdrawn_routes=[],withdrawn_routes_len=0)/
/Received route with RT ['65002:150'] that is of no interest to any VRFs or
Peers set(['65001:200', '65001:350', '65001:150', '65001:300', '65001:100',
'65001:250']). Ignoring paths from this UPDATE:
BGPUpdate(len=106,nlri=[],path_attributes=[BGPPathAttributeMpReachNLRI(afi=2,flags=128,length=49,next_hop='::ffff:10.0.0.2',nlri=[LabelledVPNIP6AddrPrefix(addr=([101],
BGPTwoOctetAsRD(admin=65002,assigned=150,type=0),
'2001:db8:2::'),length=152)],safi=128,type=14),
BGPPathAttributeOrigin(flags=64,length=1,type=1,value=2),
BGPPathAttributeAsPath(flags=64,length=6,type=2,value=[[65002]]),
BGPPathAttributeMultiExitDisc(flags=128,length=4,type=4,value=100),
BGPPathAttributeExtendedCommunities(communities=[BGPTwoOctetAsSpecificExtendedCommunity(as_number=65002,local_administrator=150,subtype=2,type=0)],flags=192,length=8,type=16)],total_path_attribute_len=83,type=2,withdrawn_routes=[],withdrawn_routes_len=0)/
/Received msg from ('10.0.0.2', '55930') <<
BGPUpdate(len=76,nlri=[],path_attributes=[BGPPathAttributeMpReachNLRI(afi=2,flags=128,length=30,next_hop='::ffff:10.0.0.2',nlri=[IP6AddrPrefix(addr='2001:db8:1::',length=64)],safi=1,type=14),
BGPPathAttributeOrigin(flags=64,length=1,type=1,value=0),
BGPPathAttributeAsPath(flags=64,length=6,type=2,value=[[65002]]),
BGPPathAttributeMultiExitDisc(flags=128,length=4,type=4,value=100)],total_path_attribute_len=53,type=2,withdrawn_routes=[],withdrawn_routes_len=0)
/
*How can i call my "neighbor_get()"function after the update messages are
received from the neighbor?. can we use any event to achieve this or any other
ways?.*
Thanks
Hadem
On Wed, Jan 17, 2018 at 4:57 AM, Iwase Yusuke <iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>> wrote:
Hi Hadem,
In that case, you need to call "neighbor_get()" after connections to
neighbor(s)
established and received some routes.
It seems that Ryu just returns a empty list because Ryu does not yet
received
any routes from neighbors.
Thanks,
Iwase
On 2018年01月15日 17:48, Pynbiang Hadem wrote:
Hi Iwase,
Precisely, i actually wanted to get *adj-RIB-in* information.
Is there any problem with my code while trying to achieve this?.
Thanks
Hadem
On Mon, Jan 15, 2018 at 5:38 AM, Iwase Yusuke <iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com> <mailto:iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>>> wrote:
Hi Hadem,
It is depending on what you want to get though, you attempt to get
neighbors
information, right?
In that case, you should use "neighbors_get()" (plural form)
instead of
"neighbor_get()".
http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker.neighbors_get
<http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker.neighbors_get>
<http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker.neighbors_get
<http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker.neighbors_get>>
With "neighbor_get()" with "route_type='received-routes'", Ryu
should return the
adj-RIB-in information and I guess it is always an empty list when
starting up
(connections are not established with neighbors).
Thanks,
Iwase
On 2018年01月13日 00:59, Pynbiang Hadem wrote:
Hi Iwase,
I've made the modifications accordingly. *Now i am able to see
the
output for vrfs_get() and rib_get()*. *However there is still
no output
for neighbor_get() . ---output is in **BGPTest-output.py*
*Pls advice how to get the output for neighbor_get().*
*Enclosed herewith: (1) modified bgpapplication1.py & (2)
BGPTest-output.py*
Thanks
Hadem
On Fri, Jan 12, 2018 at 7:36 AM, Iwase Yusuke
<iwase.yusu...@gmail.com <mailto:iwase.yusu...@gmail.com>
<mailto:iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>> <mailto:iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>
<mailto:iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>>>> wrote:
Hi Hadem,
First, the return value for each BGPSpeaker's API (with
format="json") is str
type value.
Why you need to split them like;
vrf_result = self.speaker.vrfs_get('routes', None,
'all', 'json')
nowtime = vrf_result[0] # <--- ?
result = vrf_result[1] # <--- ?
And, please confirm the meaning of each argument when
calling BGPSpeaker's
APIs.
For example, to getting all VRF configurations, you need
to specify
"summary"
instead of "routes".
http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker.vrfs_get
<http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker.vrfs_get>
<http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker.vrfs_get
<http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker.vrfs_get>>
<http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker.vrfs_get
<http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker.vrfs_get>
<http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker.vrfs_get
<http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker.vrfs_get>>>
Thanks,
Iwase
On 2018年01月11日 21:55, Pynbiang Hadem wrote:
*Hi,*
*
*
*I am getting blank output for BGPSpeaker show_vrf,
show_rib,
show_neighbor. The partial output is as below:*
----------------------------------
/Sending MED Update Message.../
/Send BGP UPDATE Message for changing MED[100]/
/API method neighbor.update called with args:
{'ip_address':
'10.0.0.2',
'changes': {'multi_exit_disc': 100}}/
/on_update_med fired/
/MED value for neigh: Neighbor: 10.0.0.2 updated to
100/
/Calling get VRFs Information .../
/Shows BGP VRF information in a json format/
/API method operator.show called with args: {'params':
['vrf',
'routes',
'all'], 'format': 'json'}/
/+++++++++++++++++++++++++++++++/
/{ : Show VRFs /
/+++++++++++++++++++++++++++++++/
/"/
/
/
/Calling SHOW RIB .../
/Shows BGP routing information in a json format/
/API method operator.show called with args: {'params':
['rib',
'all'],
'format': 'json'}/
/+++++++++++++++++++++++++++++++/
/{ : Show rib /
/+++++++++++++++++++++++++++++++/
/"/
/
/
/Calling SHOW Neighbor.../
/Inside Show Neighbor BGP UPDATE Message/
/API method operator.show called with args: {'params':
['neighbor',
'received-routes', '10.0.0.2', 'all'], 'format':
'json'}/
/[]/
/+++++++++++++++++++++++++++++++/
/[ : Show neighbor /
/+++++++++++++++++++++++++++++++/
/]/
------------------------------------------
*I am attaching herewith my BGP application
file(bgpapplication1.py). *
*Pls let me know what mistake i have done and how to
display
the above
details.*
*
*
*Thanks*
*Hadem*
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