[f-nsp] foundry equivalent of allowas-in

[Charles Ball]

I found this in the 3.8 manual for xmr/mx:
 
Configuring a PE to Allow Routes with its AS Number
BGP rejects routes that contain its own AS number within its AS_PATH attribute to prevent routing loops. In an
MPLS/VPN hub and spoke topology this can stop legitimate routes from being accepted. The allowas-in
command fixes this problem by allowing you to set a parameter that disables the AS_PATH check function for
routes learned from a specified location.
To configure a PE to disable the AS_PATH check function for routes sent to it by its BGP neighbor (a CE router
with the IP address 33.33.36.2) for a maximum limit of 3 occurrences of the route, enter the following command at
the BGP VRF configuration level.
NetIron(config-bgp-ipv4u-vrf)# neighbor 33.33.36.2 allowas-in 3
Syntax: neighbor <IPaddress> allowas-in <asn_limit>
The <IPaddress> variable is the IP address of the neighbor CE router that the PE router will accept routes with the
same AS number.
The asn_limit value prevents loops by limiting the number of occurrences that the PE’s AS number will be
accepted in routes that are received from the specified router.
> Date: Mon, 27 Oct 2008 13:32:57 +0100> From: ronald.esveld at qi.nl> To: frank at openminds.be; foundry-nsp at puck.nether.net> Subject: Re: [f-nsp] foundry equivalent of allowas-in> > Foundry uses allow-as in as well :)> > Ronald> > -----Oorspronkelijk bericht-----> Van: foundry-nsp-bounces at puck.nether.net> [mailto:foundry-nsp-bounces at puck.nether.net] Namens Frank Louwers> Verzonden: maandag 27 oktober 2008 12:13> Aan: foundry-nsp at puck.nether.net> Onderwerp: [f-nsp] foundry equivalent of allowas-in> > Hi,> > Is there a Foundry equivalent of the Cisco "allowas-in" command on a > BGP nei? I have a new PoP to set up and the bgp transit there is > already delivered but the L2 link between the new pop and my main net > will take a few weeks to get delivered.> > In the mean time I wanted to allowas-in my own asn...> > Any suggestions?> > Regards,> > Frank> _______________________________________________> foundry-nsp mailing list> foundry-nsp at puck.nether.net> http://puck.nether.net/mailman/listinfo/foundry-nsp> _______________________________________________> foundry-nsp mailing list> foundry-nsp at puck.nether.net> http://puck.nether.net/mailman/listinfo/foundry-nsp
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