I was too busy yesterday working on this to say thanks. The loops threshold was exactly what I needed although my upstream was ALSO filtering. I have to admit that it did take me a few minutes to realize that the loops limit also applies to external routes learned by an ibgp neighbor!
the internal neighbor adds an additional AS hop to it, so I had to raise my threshold one more than I initially assessed. Thanks again all. On Sep 10, 2013, at 12:46 PM, Andrew Tutten wrote: I believe the command you're looking for is: set routing-options autonomous-system loops <#> where # is the acceptable number of times your AS# shows up in an eBGP as-path On Tue, Sep 10, 2013 at 12:28 PM, OBrien, Will <obri...@missouri.edu<mailto:obri...@missouri.edu>> wrote: I've found an interesting issue and I wanted to get some thoughts before talking to JTAC about it. I have a few of MX480s. In the past, I've advertised a dedicated /24 from my lab to my providers upstream. That /24 was never learned by my primary MX. The issue comes down to either the MX or the Cisco filtering routes that are from the same ASN. It's been a couple of years since I ran across this and I can't remember who was at fault. This behavior is biting my with regard to my DR site. At my DR, I have a SRX with say ASN 1234. It's advertising a /24. At my primary site, I also use ASN1234. I do not receive the /24 via BGP. So, either the Cisco (7600 I think) isn't advertising the route to me because it's from my ASN - OR - The MX is filtering it because it's from my ASN and coming in on a eBGP link. If it's the MX, I'm certain I can write an import filter, but I'm having an issue hunting down syntax on that. If it's the Cisco, then I can yell at the provider to have them open a TAC case. Like I said, I ran across this a few years ago, but can't remember who was at fault. I could build a multi-hop neighbor relationship to get around this, but surely there's a simpler solution... _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net<mailto:juniper-nsp@puck.nether.net> https://puck.nether.net/mailman/listinfo/juniper-nsp -- Andrew Tutten Senior Network Engineer API Digital Communications Group [http://www.api-digital.com/mkt/email_logo_200x60.png] _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp