Hello Marek, On Fri, Mar 17, 2023 at 08:23:36AM +0100, Marek Küthe wrote: > What does `BGP.23 [t]: 00 00 ca 6a` mean? I have never seen this before > in bird.
That's a Only to Customer (OTC) BGP attribute[1] set by AS51818 (which is I assume the ASN of the RS you're getting the route from): BGP.23 : Attribute 0x23 (35)[2] 0x0000CA6A : 51818 Kind regards, Benjamin --- [1] https://www.rfc-editor.org/rfc/rfc9234.html#prevention_attribute [2] https://www.iana.org/assignments/bgp-parameters/bgp-parameters.xhtml -- Benjamin Collet
