<html><head><style>body{font-family:Helvetica,Arial;font-size:13px}</style></head><body><div style="font-family:Helvetica,Arial;font-size:13px">Hello Maria,</div> <div class="gmail_signature"></div> <br><blockquote type="cite" class="clean_bq"><span><div><div>>
<br>>> On Mon, 6 Jun 2022 at 13:20, Valery Lutoshkin <<a href="mailto:vpluto@gmail.com">vpluto@gmail.com</a>
<br>>> <mailto:<a href="mailto:vpluto@gmail.com">vpluto@gmail.com</a>>> wrote:
<br>>> > For example:
<br>>> > peer 1: <a href="http://1.1.1.1/32">1.1.1.1/32</a> <<a href="http://1.1.1.1/32">http://1.1.1.1/32</a>> 1:100
<br>>> > peer 2: <a href="http://1.1.1.1/32">1.1.1.1/32</a> <<a href="http://1.1.1.1/32">http://1.1.1.1/32</a>> 2:200
<br>>> > peer 3: <a href="http://1.1.1.1/32">1.1.1.1/32</a> <<a href="http://1.1.1.1/32">http://1.1.1.1/32</a>> 3:300
<br>>> >
<br>>> > If the last one was chosen, the result is <a href="http://1.1.1.1/32">1.1.1.1/32</a> <<a href="http://1.1.1.1/32">http://1.1.1.1/32</a>> 3:300
<br>>> >
<br>>> > If there is any way to collect all communities and attach them to the chosen prefix (like this: <a href="http://1.1.1.1/32">1.1.1.1/32</a> <<a href="http://1.1.1.1/32">http://1.1.1.1/32</a>> 1:100,2:200,3:300), would anyone please
<br>>> tell me how to do that?
<br>>>
<br>>> What is your use case for this "somewhat odd" request?
<br>>>
<br>>
<br>> In some cases my users want to use the prefixes from one or two sources
<br>> only. So they use route-maps to filter by community.
<br>> In my example, if the user wanted to get the prefixes from the peer 1
<br>> and filtered to accept 1:100 only, he loses the prefix <a href="http://1.1.1.1/32">1.1.1.1/32</a>
<br>> <<a href="http://1.1.1.1/32">http://1.1.1.1/32</a>>.
<br>
<br>What about the BGP AddPath feature which allows for sending more than
<br>one route for the same prefix?
<br><br></div></div></span></blockquote>That’s a great idea, thank you. <div><br><div>I think in my case there is an issue - the users should support RFC7911 for this feature and most of them (mikrotik ROS6) don't. </div><div>So it looks like the only way to fix this is to change the design of the project.</div></div></body></html>