[huawei-nsp] Routes imported from OSPF into MP-BGP

[Victor Sudakov]

Dear Colleagues,

Please look at the network diagram at http://noc.sibptus.ru/~sudakov/MPBGP2.PNG

When I issue "display bgp vpnv4 vpn-instance XXX routing-table" on PE1, I
see that the routes 10.67.75.216/29 and 10.67.80.4/31 are treated
differently, and namely the route 10.67.80.4/31 is lacking any OSPF-related
attributes (see below). Therefore (?) CE1 sees it as OSPF external route
instead of internal.

Why is that so?

<PE1>display bgp vpnv4 vpn-instance XXX routing-table 10.67.75.216

 BGP local router ID : 172.21.16.41
 Local AS number : 64580

 VPN-Instance XXX, Router ID 172.21.16.41:
 Paths:   1 available, 1 best, 1 select
 BGP routing table entry information of 10.67.75.216/29:
 Label information (Received/Applied): 1247/NULL
 From: 172.21.16.1 (172.21.16.1)
 Route Duration: 00h14m22s
 Relay Tunnel Out-Interface: GigabitEthernet0/0/2
 Relay token: 0x48007eed
 Original nexthop: 172.21.16.42
 Qos information : 0x0
 Ext-Community:RT <64580 : 64>, OSPF DOMAIN ID <0.0.0.0 : 0>,
               OSPF ROUTER ID <10.67.80.5 : 0>, OSPF RT <0.0.0.0 : 1 : 0>
 AS-path Nil, origin incomplete, MED 3, localpref 100, pref-val 0, valid, internal, best, select, active, pre 255, IGP cost 20
 Originator:  172.21.16.42
 Cluster list: 172.21.16.1
 Not advertised to any peer yet


<R1>display bgp vpnv4 vpn-instance XXX routing-table 10.67.80.4

 BGP local router ID : 172.21.16.41
 Local AS number : 64580

 VPN-Instance XXX, Router ID 172.21.16.41:
 Paths:   1 available, 1 best, 1 select
 BGP routing table entry information of 10.67.80.4/31:
 Label information (Received/Applied): 1247/NULL
 From: 172.21.16.1 (172.21.16.1)
 Route Duration: 4d23h08m06s
 Relay Tunnel Out-Interface: GigabitEthernet0/0/2
 Relay token: 0x48007eed
 Original nexthop: 172.21.16.42
 Qos information : 0x0
 Ext-Community:RT <64580 : 64>
 AS-path Nil, origin incomplete, MED 0, localpref 100, pref-val 0, valid, internal, best, select, active, pre 255, IGP cost 20
 Originator:  172.21.16.42
 Cluster list: 172.21.16.1
 Not advertised to any peer yet

The routes are imported on PE2 by the BGP subcommand:

 #
 ipv4-family vpn-instance XXX
  import-route ospf 65
 #

So my assumption was that both should be imported as OSPF routes.

Thanks in advance for any ideas.

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
AS43859