Juniper configuration recommendations/BCP

Thu Oct 8 12:59:49 UTC 2020

If you are an OSPF shop, Cisco AD is 110 for internal and external
routes.  Juniper is 10 for internal and 150 for external.  This can be
changed via an export (maybe import) policy on the OSPF protocol.

There is no 'network' statement in the Junos world.  There are a few
different ways to solve this same problem.  Up to you how you do it.

Routing engine protection is much easier.  A firewall filter on the
loopback interface.  Here is a sample.  This is really where your BCP
starts.  
https://github.com/jcoeder/juniper-configurations/blob/master/protect-re.txt

Dynamic prefix-lists are pretty cool.  They allow you to create prefix-
list based on other sections of the configuration.

# In this first statement we use wildcards surrounding a . as this is
the format of an IPv4 address.
set policy-options prefix-list BGP_PEERS_DYNAMIC apply-path "protocols
bgp group <*> neighbor <*.*>"

# In this second statement we use wildcards surrounding a : as this is
the format of an IPv6 address.
set policy-options prefix-list BGP_PEERS_DYNAMIC_V6 apply-path
"protocols bgp group <*> neighbor <*:*>"

Justin

On Thu, 2020-10-08 at 03:37 -0600, Forrest Christian (List Account)
wrote:
> <ISP hat on>
> After nearly 30 years of being a cisco shop, I'm working on
> configuring our first pair of Juniper MX204's to replace our current
> provider-edge cisco. 
> 
> I've worked through enough of the Juniper documentation/books to have
> a fairly good handle on how to configure these, but I wanted to check
> with the list to see if there are any Juniper-Specific gotchas I
> might run into that isn't documented well.  
> 
> I've done a bit of googling and am either finding stuff that is
> largely Cisco-specific or which is generic - all of which I'm
> rather familiar with based on my past history.   Is there anything I
> should worry about which is Juniper-specific?
> 
> -- 
> - Forrest