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

[Ben Dale]

On 7 Apr 2014, at 6:37 pm, Dave Bell <me at geordish.org<mailto:me at geordish.org>> wrote:

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 <*>";
    }
}


Thanks Dave and Tim - looks like multiple lists will have to do.





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