[j-nsp] apply-path regex for specific interface matching

[Dave Bell]

I'm not sure you can do exactly what you are interested in. I would use two
prefix lists as follows.

policy-options {
    prefix-list list1 {
        apply-path "interfaces <ae*> unit <*> family inet address <*>";
    }
    prefix-list list2 {
        apply-path "interfaces <ge-1/[01]/[0-5]> unit <*> family inet
address <*>";
    }
}



On 7 April 2014 02:45, Ben Dale <bdale at comlinx.com.au> wrote:

> Dredging up an old thread here, but I have a requirement for an apply-path
> that matches ae* and ge-1/[01]/[0-4] unit * (for a prefix-list).
>
> I must be missing something fundamental about the regex you can use in
> apply-path though, because all combinations I've tried seem to fail.
>
> About as close as I can get to something that actually gives me results is
> "interfaces <[ae|ge-1/0/]*> unit <*> family net address <*>" which isn't
> all that useful.
>
> It doesn't look like apply-path supports any nesting of regexes either eg:
> interfaces <[ae|ge-1/[01]/]*> returns no results at all
>
> Any thoughts?
>
> On 26 Feb 2014, at 1:48 pm, Michael Gehrmann <
> mgehrmann at macquarietelecom.com> wrote:
>
> > Hi Ben,
> >
> > I believe this document on the juniper site is what you were looking for.
> >
> >
> http://www.juniper.net/techpubs/en_US/junos12.1/topics/concept/junos-cli-wildcard-characters-configuration-groups-usage.html
> >
> > Cheers
> > Mike
> >
> > -----Original Message-----
> > From: juniper-nsp [mailto:juniper-nsp-bounces at puck.nether.net] On
> Behalf Of Ben Dale
> > Sent: Wednesday, 26 February 2014 9:43 AM
> > To: juniper-nsp at puck.nether.net
> > Subject: [j-nsp] apply-path regex for specific interface matching
> >
> > Hi all,
> >
> > I'm trying to generate a prefix-list for all CE-facing interfaces on a
> PE (assume L3VPN).
> >
> > As a test, I'm just trying to match all ge interfaces, but the following
> returns no match at all:
> >
> > prefix-list CE-LINKS {
> >    apply-path "interfaces ge-<*> unit <*> family inet address <*>"; }
> >
> > I've tried both ge<*>, ge-<*> but no luck either way, and as soon as I
> remove "ge-", I get all interface prefixes as expected.
> >
> > I vaguely remember a post here on this a while back, but I haven't been
> able to track it down and google/Juniper docs are not providing any info.
> >
> > Is anyone aware of 1) a solution, or 2) any docs that go through what
> regex is actually available in apply-path?
> >
> > Thanks,
> >
> > Ben
> >
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>
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