Hello,

I'm trying to setup a BGP session between my Mikrotik assigned with a private ASN and our Juniper core router with a public ASN.
Let's say I'm using 10.0.0.0/30 as the subnet between the two (directly connected) with .1 Juniper and .2 mikrotik. A traceroute on both devices to the other side show only 1 hop so traffic flows correctly you would say.

Mikrotik is using 65413 AS with router-id 10.0.0.2.
at /peers I configured remote-address=10.0.0.1, remote AS <public ASN>

Holdtimer is 90s, same as Juniper.
Keepalive is 30s, same as Juniper.

The Mikrotik keeps receiving a Holdtimer expired notification from the Juniper while it keeps establishing a TCP connection.
The Keepalive timer goes off 3 times until the Holdtime error comes along (which is a logical conclusion since 3x 30 = 90).

I don't know what else could be wrong.

Hello,

Did you check firewall rules (on both devices) ?
Frame errors within the link?
Is router idling when this happens or has a CPU spike?


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