[BGPCEP-788] Local-as failing with BAD_PEER_AS Created: 13/Apr/18  Updated: 12/Jul/18  Resolved: 16/Apr/18

Status: Verified
Project: bgpcep
Component/s: BGP
Affects Version/s: Fluorine
Fix Version/s: Fluorine

Type: Bug Priority: Medium
Reporter: Tomas Markovic Assignee: Claudio David Gasparini
Resolution: Cannot Reproduce Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Attachments: File conf2.py     File default2.cfg    

 Description   

Overview: Configure external passive peer with local-as.
Connect with exabgp with both peer-as and local-as set to local-as from the peer conf.
result:

2018-04-13T16:00:52,117 | WARN  | epollEventLoopGroup-5-8 | StrictBGPPeerRegistry            | 210 - org.opendaylight.bgpcep.bgp-rib-impl - 0.10.0.SNAPSHOT | Unexpected remote AS number. Expecting AsNumber{_value=64496}, got AsNumber{_value=65432}
2018-04-13T16:00:52,117 | ERROR | epollEventLoopGroup-5-8 | BGPDocumentedException           | 204 - org.opendaylight.bgpcep.bgp-parser-api - 0.10.0.SNAPSHOT | Error = BAD_PEER_AS
org.opendaylight.protocol.bgp.parser.BGPDocumentedException: Peer AS number mismatch
	at org.opendaylight.protocol.bgp.rib.impl.StrictBGPPeerRegistry.validateAs(StrictBGPPeerRegistry.java:205) [210:org.opendaylight.bgpcep.bgp-rib-impl:0.10.0.SNAPSHOT]
	at org.opendaylight.protocol.bgp.rib.impl.StrictBGPPeerRegistry.getPeer(StrictBGPPeerRegistry.java:191) [210:org.opendaylight.bgpcep.bgp-rib-impl:0.10.0.SNAPSHOT]
	at org.opendaylight.protocol.bgp.rib.impl.AbstractBGPSessionNegotiator.handleOpen(AbstractBGPSessionNegotiator.java:204) [210:org.opendaylight.bgpcep.bgp-rib-impl:0.10.0.SNAPSHOT]
	at org.opendaylight.protocol.bgp.rib.impl.AbstractBGPSessionNegotiator.handleMessage(AbstractBGPSessionNegotiator.java:173) [210:org.opendaylight.bgpcep.bgp-rib-impl:0.10.0.SNAPSHOT]
	at org.opendaylight.protocol.bgp.rib.impl.AbstractBGPSessionNegotiator.channelRead(AbstractBGPSessionNegotiator.java:286) [210:org.opendaylight.bgpcep.bgp-rib-impl:0.10.0.SNAPSHOT]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [103:io.netty.transport:4.1.16.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [103:io.netty.transport:4.1.16.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [103:io.netty.transport:4.1.16.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:310) [98:io.netty.codec:4.1.16.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:284) [98:io.netty.codec:4.1.16.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [103:io.netty.transport:4.1.16.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [103:io.netty.transport:4.1.16.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [103:io.netty.transport:4.1.16.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:310) [98:io.netty.codec:4.1.16.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:284) [98:io.netty.codec:4.1.16.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [103:io.netty.transport:4.1.16.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [103:io.netty.transport:4.1.16.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [103:io.netty.transport:4.1.16.Final]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1359) [103:io.netty.transport:4.1.16.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [103:io.netty.transport:4.1.16.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [103:io.netty.transport:4.1.16.Final]
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:935) [103:io.netty.transport:4.1.16.Final]
	at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:797) [104:io.netty.transport-native-epoll:4.1.16.Final]
	at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:404) [104:io.netty.transport-native-epoll:4.1.16.Final]
	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:304) [104:io.netty.transport-native-epoll:4.1.16.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858) [100:io.netty.common:4.1.16.Final]
	at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:138) [100:io.netty.common:4.1.16.Final]
	at java.lang.Thread.run(Thread.java:748) [?:?]

Steps to reproduce:

  • fluorine karaf with ( tested on version 4.11.2018 ) 
    feature:install odl-restconf odl-bgpcep-bgp odl-bgpcep-bgp-config-example
  • configure peer with local-as, there is config in the file. 
    ./conf2.py
  • start exabgp 
    env exabgp.tcp.port=1790 exabgp --debug default2.cfg

Also reproducable on sandbox with PATCHREFSPEC: refs/changes/41/70841/5
and SUITES: bgpcep/bgpuser/basic.robot

If I configure play.py with --asnumber=64496 for example, it does connect and there is as sequence in loc-rib with 64496 and 65432.

 Comments   
Comment by Claudio David Gasparini [ 16/Apr/18 ]

Hi, it's just miss-configuration 

ODL Configuration says that

ODL(AS 65432) <----> Exabgp Peer (AS 64496)

 

but your exabgp config

Exabgp Peer (AS 64496) <---->  ODL(AS 64496)

where

local-as 65432;  --> this is the exabgp AS
peer-as 65432;  --> this is the remote AS (ODL), therefore should be 64496

 

I see that doc images uses different AS than doc post payload, if you think it will be clearer if the AS match, please push change for that.

 

Regards, 

 

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