[j-nsp] Prioritize route advertisement

Jason Lixfeld jason-jnsp at lixfeld.ca
Mon Apr 6 11:16:44 EDT 2020


Is it possible it’s related to the MTU change itself?  I only mention it because I ran into a convergence issue between a MX10K3 and a JRR200 in the lab when I was timing convergence speeds.  It took many minutes for the JRR to receive the full table.  It turned out to be a lower MTU on an intermediate device in the lab core.  Once that was fixed, the JRR receive the full table in less than a minute.

> On Apr 6, 2020, at 11:05 AM, Gustavo Santos <gustkiller at gmail.com> wrote:
> 
> Hi,
> 
> We have a MX10003 as peering router with over 400 BGP sessions. Last week
> we had to change MTU from one Interface and after change, the router took
> about 20 minutes to advertise routes some of our transit providers.
> 
> Is there a way to prioritize advertisement on some BGP sessions above
> others? I tried the
> https://www.juniper.net/documentation/en_US/junos/topics/topic-map/bgp-route-prioritization.html
> 
> 
> The first time I noticed that behavior and with that event , this options
> did not worked as expected.
> 
> The question is if there is a way to work around this change that behavior?
> 
> Regards.
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