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To respond to errors or special conditions, NOTIFICATION messages can be generated and sent to the remote peer, notification message type also indicates whether the connection should be immediately closed.

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Connections

There can be two types of BGP connections:

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#Router2
/routing/bgp/connection
add name=toR1 remote.address=192.168.1.1 as=65532 local.role=ebgp

BGP connection menu defines BGP outgoing connections as well as acts as a template matcher for incoming BGP connections. We will discuss templating and dynamic peering later in this article.

To see the actual active sessions with selected template parameters and negotiated capabilities refer to the BGP sessions menu:

[admin@MikroTik] /routing/bgp/session> print 
Flags: E - established 
 0 E name="toR2" 
     remote.address=192.168.1.2 .as=65532 .id=192.168.1.1 .refused-cap-opt=no 
     .capabilities=mp,rr,as4 .afi=ip,ipv6 .messages=43346 .bytes=3635916 .eor="" 
     local.address=192.168.1.1 .as=65531 .id=192.168.44.2 .capabilities=mp,rr,gr,as4 .messages=2 
     .bytes=71 .eor="" 
     output.procid=97 .keep-sent-attributes=no 
     .last-notification=ffffffffffffffffffffffffffffffff0015030601 
     input.procid=97 .limit-process-routes=500000 ebgp limit-exceeded 
     hold-time=3m keepalive-time=1m uptime=4s70ms

 local.role parameter is used to indicate that this connection will be the eBGP. Also, notice that the connection does not require a remote AS number to be specified, RouterOS can determine a remote AS number dynamically from the first received OPEN message.

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