Hi Hadem,
Please let me know what "process" exactly means.
You mean receiving all BGP UPDATE messages in your application, right?
Currently, Ryu BGP service does not provide the APIs to pass the received BGP
Update messages to
other applications, so you need to manually open socket, parse the received
buffer and handle the
BGP states manually.
Example:
import socket
from ryu.lib.packet import bgp
...(snip)...
sock = socket.socket()
...(snip)... # bind, connect, accept, ...
buf = self.socket.recv(required_len)
msg, _, rest = bgp.BGPMessage.parser(buf)
# Do handling
FYI, Ryu BGP service receives the BGP message here, if you don't mind the
changing Ryu source,
you might be able to add some "hooks" for your application.
(I don't think it better way though...)
Thanks,
Iwase
On 2017年11月27日 18:15, Pynbiang Hadem wrote:
Hi Iwase,
Actually, i want to process the BGP Update messages in my application.
Pls suggest how this can be done.
Thanks
Hadem
On Mon, Nov 27, 2017 at 12:54 PM, Iwase Yusuke <iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>> wrote:
Hi Hadem,
You don't need to handle (receive, extract attributes and so on) the BGP
UPDATE messages directly.
Ryu BGP service does handle the BGP messages, then notify the updates of
the best path or connect/
disconnect of neighbors as the "events".
For example, Ryu will call the given "best_path_change_handler" if you uses
the APIs of BGPSpeaker,
http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker
<http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker>
and application.py will generate the event instance if your application
observes them.
https://github.com/osrg/ryu/blob/ed2c6eca2227c9efb3c7e51cdd6db6bf578ec609/ryu/services/protocols/bgp/application.py#L141-L171
<https://github.com/osrg/ryu/blob/ed2c6eca2227c9efb3c7e51cdd6db6bf578ec609/ryu/services/protocols/bgp/application.py#L141-L171>
Thanks,
Iwase
On 2017年11月24日 21:32, Pynbiang Hadem wrote:
Hi,
I have two Autonomous Systems AS1 and AS2. I am able to send BGP update
message from AS1 to
AS2 and vice versa. I want to process the BGP update messages in my RYU
application. I'm a
little confused how to achieve that.
Pls help.
Thanks
Hadem
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