HP 10500 Series Configuration Manual page 182

10.2.1.0/32
10.2.1.2/32
10.2.1.255/32
100.1.1.0/24
127.0.0.0/8
127.0.0.0/32
127.0.0.1/32
127.255.255.255/32
200.1.1.0/24
224.0.0.0/4
224.0.0.0/24
255.255.255.255/32
# Enable BGP update packet debugging on PE 2. You can see that PE 2 advertises the route to
100.1.1.1/32, and the AS_PATH is 100 600.
<PE2> terminal monitor
<PE2> terminal logging level 7
<PE2> debugging bgp update vpn-instance vpn1 10.2.1.1 ipv4
<PE2> refresh bgp all export ipv4 vpn-instance vpn1
*Jun 13 16:12:52:096 2012 PE2 BGP/7/DEBUG: -MDC=1;
BGP.vpn1: Send UPDATE to peer 10.2.1.1 for following destinations:
Origin
AS Path
Next Hop
100.1.1.0/24,
# Execute the display bgp routing-table ipv4 peer received-routes command on CE 2. You can see
that CE 2 has not received the route to 100.1.1.0/24.
<CE2> display bgp routing-table ipv4 peer 10.2.1.2 received-routes
Total number of routes: 2
BGP local router ID is 200.1.1.1
Status codes: * - valid, > - best, d - dampened, h - history,
Network
* >e 10.1.1.0/24
* e 10.2.1.0/24
Configure BGP AS number substitution on PE 2:
2.
<PE2> system-view
[PE2] bgp 100
[PE2-bgp] ip vpn-instance vpn1
[PE2-bgp-vpn1] peer 10.2.1.1 substitute-as
[PE2-bgp-vpn1] ipv4-family unicast
[PE2-bgp-ipv4-vpn1] peer 10.2.1.1 enable
[PE2-bgp-ipv4-vpn1] quit
[PE2-bgp-vpn1] quit
Direct 0 0
Direct 0 0
Direct 0 0
BGP 255 0
Direct 0 0
Direct 0 0
Direct 0 0
Direct 0 0
BGP 255 0
Direct 0 0
Direct 0 0
Direct 0 0
: Incomplete
: 100 600
: 10.2.1.2
s - suppressed, S - stale, i - internal, e - external
Origin: i - IGP, e - EGP, ? - incomplete
NextHop
10.2.1.2
10.2.1.2
176
10.2.1.2
127.0.0.1
10.2.1.2
1.1.1.9
127.0.0.1
127.0.0.1
127.0.0.1
127.0.0.1
10.2.1.1
0.0.0.0
0.0.0.0
127.0.0.1
MED LocPrf
0
Vlan12
InLoop0
Vlan12
Vlan11
InLoop0
InLoop0
InLoop0
InLoop0
Vlan12
NULL0
NULL0
InLoop0
PrefVal Path/Ogn
0 100?
0 100?