###
#
# BGP Two channel with one provider (Private AS)
#
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# ISP router1
!
interface FastEthernet1
 description - isp1 -
 ip address x.x.x.1 255.255.255.252
! 
router bgp 00001
neighbor ISP1 peer-group
 neighbor ISP1 remote-as 65100
 neighbor ISP1 version 4
 neighbor ISP1 activate
 neighbor ISP1 default-originate
 neighbor ISP1 remove-private-as
 neighbor ISP1 maximum-prefix 10
neighbor x.x.x.2 peer-group ISP1

# ISP router1
!
interface FastEthernet1
 description - isp2 -
 ip address y.y.y.1 255.255.255.252
! 
router bgp 00002
neighbor ISP2 peer-group
 neighbor ISP2 remote-as 65100
 neighbor ISP2 version 4
 neighbor ISP2 activate
 neighbor ISP2 default-originate
 neighbor ISP2 remove-private-as
 neighbor ISP2 maximum-prefix 10
neighbor y.y.y.2 peer-group ISP2

# Customer router
!
router bgp 65100
 aggregate-address z.z.z.0/24 summary-only
 redistribute connected
 neighbor x.x.x.2 remote-as 00001
 neighbor x.x.x.2 prefix-list PREFIX-IN in
 neighbor x.x.x.2 prefix-list PREFIX-OUT out
 neighbor x.x.x.2 route-map isp1 in
 neighbor x.x.x.2 route-map isp1 out
 neighbor y.y.y.2 remote-as 00002
 neighbor y.y.y.2 prefix-list PREFIX-IN in
 neighbor y.y.y.2 prefix-list PREFIX-OUT out
 neighbor y.y.y.2 route-map isp2 in
 neighbor y.y.y.2 route-map isp2 out
!
ip prefix-list PREFIX-IN seq 5 permit 0.0.0.0/0
ip prefix-list PREFIX-OUT seq 5 permit z.z.z.0/24
!
route-map isp1 permit 10
 set local-preference 110
!
route-map isp2 permit 10
 set local-preference 90
!
line vty
!