Re: BGP SOO

can this be used with network statement? or do i have to do an ACL then use
the neighbour statement.

for example: which one would be the correct way?

router bgp 2009
address-family ipv4
network 10.10.10.0 mask 255.255.255.0 route-map SOO

route-map SOO permit 10
set extcommunity soo 1000:10000

or

router bgp 2009
address-family ipv4
neighbour 172.10.10.1 route-map SOO

access-list 5 permit 10.10.10.0 0.0.0.255

route-map SOO permit 10
match ip address 5
set extcommunity soo 1000:1000

route-map SOO permit 20

thank you

Splinter

On Mon, Jun 1, 2009 at 8:34 PM, Victor Cappuccio <vcappuccio_at_gmail.com>wrote:

> Hi,
>
> BGP have loops prevention mechanisms embedded , and we have tools to
> bypass this aspect of BGP, such as AS-Override or the allowas-in, SOO
> Extended Community is a loop prevention mechanism needed only for customer
> networks with multihomed sites. Loops can never occur in stub sites, the SOO
> Attribute,is used to prevent loops, when EBGP is running between the PE and
> CE routers, and this attribute is configured using a route-map. Now if the
> PE-CE routing protocol is not BGP we configure SOO under vrf interface by ip
> vrf sitemap command.
>
>
> router bgp 123
> !
> address-family ipv4 vrf CCIESP
> neighbor 6.6.6.6 remote-as 999
> neighbor 6.6.6.6 route-map SETSOO in
> !
> route-map SETSOO permit 10 set extcommunity soo 96:96
>
> BGP SOO Link
> http://www.cisco.com/en/US/docs/ios/12_4t/12_4t11/htbgpsoo.html#wp1055228
> NON BGP Example:
> http://wiki.nil.com/Multihomed_MPLS_VPN_sites_running_EIGRP
>
> HTH
>
> thanks,Victor.-
>
> On Mon, Jun 1, 2009 at 6:34 PM, Splinter <splinter330_at_gmail.com> wrote:
>
>> Hi all,
>>
>> Is BGP Site-of-Origin only used with MPLS VPN or can this feature also be
>> used in IPV4 BGP?
>>
>>
>>
>> Splinter
>>
>>
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>>
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>
>
> --
> Victor Cappuccio
> CCIE R/S# 20657
> CCSI# 30452
> www.anetworkerblog.com
> www.linkedin.com/in/vcappuccio

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Received on Tue Jun 02 2009 - 09:22:54 ART