[f-nsp] foundry equivalent of allowas-in

Wed Oct 29 05:15:19 EDT 2008

It's supported on the BI-RX as well.

On the SX it's unsupported

Ronald

Van: Frank Louwers [mailto:frank at openminds.be] 
Verzonden: woensdag 29 oktober 2008 8:48
Aan: foundry-nsp at puck.nether.net
CC: Ronald Esveld; Charles Ball
Onderwerp: Re: [f-nsp] foundry equivalent of allowas-in

On 27 Oct 2008, at 18:09, Charles Ball wrote:

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

It seems this is a MRX/MX feature only? Any ideas how to do this on a
BigIron?

Regards,

Frank

Met vriendelijke groet, With kind regards, 

Ronald Esveld
network engineer

Qi ict
Delftechpark 35-37
Postbus 402, 2600 AK Delft

T : +31 15 888 0 444
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