Kod: Zaznacz cały
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
1.1.1.1 4 6500 7 5 3 0 0 00:01:56 1
8.8.8.3 4 6510 4 6 3 0 0 00:01:46 0
Kod: Zaznacz cały
ip vrf 004
rd 127.0.0.0:4
route-target export 127.0.0.0:1
Kod: Zaznacz cały
vrf 001
address-family ipv4 unicast
import route-target
127.0.0.0:1
Chodzi o to ze jezeli twoj router PE ma jedynie zapinac sesje MP-BGP vpnv4 to wylaczasz globalnie ipv4 unicast pod procesem BGP. Bo jezeli masz neighbor x.x.x.x to IOS-XE domyslnie zestawi Ci sesje BGP vpnv4 i BGP ipv4. To jest przydatne gdy masz PE jako shared dla zwyklego BGP i MP-BGP w Core operatora. Wylaczajac globalnie sesje ipv4 unicast mozesz wciaz ich uzywac ale musisz uzywac "activate" per address-familiy ipv4 per neighborpysiok83 pisze:brakowało pod vrfem ipv4 unicast, Dzięki Horac...
Wspominałeś coś wyżej, żeby nie podawać ipv4 pod konfiguracją samego BGPa. Możesz rozwinąć? Z tego co rozumiem to ipv4 podajemy w przypadku przesyłania prefixów.
Kod: Zaznacz cały
- chodzi o 8.8.8.4
address-family ipv4 vrf 004
redistribute connected
neighbor 1.1.1.1 remote-as 6500
neighbor 1.1.1.1 activate
neighbor 8.8.8.4 remote-as 64677
neighbor 8.8.8.4 update-source Loopback0
neighbor 8.8.8.4 activate
exit-address-family
Kod: Zaznacz cały
interface Loopback0
ipv4 address 8.8.8.4 255.255.255.255
!
router bgp 64677
bgp router-id 2.2.2.1
address-family ipv4 unicast
!
address-family vpnv4 unicast
!
neighbor-group EBGP_AGN_PEERS
remote-as 6510
address-family ipv4 unicast
!
!
vrf 004
rd 127.4.0.4:0
address-family ipv4 unicast
!
neighbor 8.8.8.2
use neighbor-group EBGP_AGN_PEERS
update-source Loopback0
!
!
!
end
RP/0/0/CPU0:Rx2#RP/0/0/CPU0:Mar 8 00:34:59.985 : ipv4_rib[1136]: %ROUTING-RIB-3-UPDATE_TIMEOUT : Client "bgp" updated the RIB without signaling update completion for Vrf: "default" Tbl: "default" Safi: "Unicast"
Kod: Zaznacz cały
R2#sh ip route ospf 1
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override
Gateway of last resort is not set
8.0.0.0/32 is subnetted, 2 subnets
O 8.8.8.3 [110/2] via 1.1.1.6, 02:50:02, GigabitEthernet2
9.0.0.0/32 is subnetted, 1 subnets
O 9.9.9.4 [110/2] via 10.116.255.2, 00:06:23, GigabitEthernet4.252
Kod: Zaznacz cały
Routing Table: 004
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override
Gateway of last resort is not set
1.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 1.1.1.0/30 is directly connected, GigabitEthernet3
L 1.1.1.2/32 is directly connected, GigabitEthernet3
2.0.0.0/24 is subnetted, 1 subnets
B 2.2.2.0 [20/0] via 1.1.1.1, 10:00:59
9.0.0.0/32 is subnetted, 2 subnets
C 9.9.9.2 is directly connected, Loopback2
O 9.9.9.4 [110/2] via 10.116.255.2, 00:12:55, GigabitEthernet4.252
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.116.255.0/29 is directly connected, GigabitEthernet4.252
L 10.116.255.5/32 is directly connected, GigabitEthernet4.252
Kod: Zaznacz cały
interface Loopback0
ip address 8.8.8.2 255.255.255.255
ip ospf 1 area 0
!
interface Loopback1
ip vrf forwarding 004
ip address 1.2.1.1 255.255.255.255
ip ospf 2 area 0
!
interface GigabitEthernet1
no ip address
negotiation auto
!
interface GigabitEthernet2
ip address 1.1.1.5 255.255.255.252
ip ospf 1 area 0
negotiation auto
mpls ip
!
interface GigabitEthernet3
description R1
ip vrf forwarding 004
ip address 1.1.1.2 255.255.255.252
negotiation auto
!
interface GigabitEthernet4
no ip address
negotiation auto
!
interface GigabitEthernet4.252
encapsulation dot1Q 252
ip vrf forwarding 004
ip address 10.116.255.5 255.255.255.248
ip ospf 2 area 0
!
interface GigabitEthernet5
no ip address
shutdown
negotiation auto
!
interface GigabitEthernet6
no ip address
shutdown
negotiation auto
!
interface GigabitEthernet7
no ip address
shutdown
negotiation auto
!
interface GigabitEthernet8
no ip address
shutdown
negotiation auto
!
router ospf 2 vrf 004
network 1.2.1.1 0.0.0.0 area 0
network 2.2.0.1 0.0.0.0 area 0
!
router ospf 1
network 8.8.8.2 0.0.0.0 area 0
network 8.8.8.4 0.0.0.0 area 0
!
router bgp 6510
bgp router-id 1.1.1.2
bgp log-neighbor-changes
neighbor 8.8.8.3 remote-as 6510
neighbor 8.8.8.3 update-source Loopback0
!
address-family vpnv4
neighbor 8.8.8.3 activate
neighbor 8.8.8.3 send-community extended
exit-address-family
!
address-family ipv4 vrf 004
redistribute connected
redistribute ospf 2
neighbor 1.1.1.1 remote-as 6500
neighbor 1.1.1.1 activate
neighbor 2.2.0.1 remote-as 64677 - to jest sesja która nie wstaje
neighbor 2.2.0.1 update-source Loopback1
neighbor 2.2.0.1 activate
exit-address-family
Kod: Zaznacz cały
interface Loopback0
vrf 004
ipv4 address 2.2.0.1 255.255.255.255
interface GigabitEthernet0/0/0/1.252
vrf 004
ipv4 address 10.116.255.2 255.255.255.248
encapsulation dot1q 252
router ospf LAB
vrf 004
area 0.0.0.0
interface Loopback0
!
interface GigabitEthernet0/0/0/1.252
!
!
!
!
router bgp 64677
bgp router-id 2.2.0.0
address-family ipv4 unicast
!
address-family vpnv4 unicast
!
neighbor-group EBGP_AGN_PEERS
remote-as 6510
address-family ipv4 unicast
!
!
vrf 004
rd 127.4.0.4:0
address-family ipv4 unicast
!
neighbor 1.2.1.1
use neighbor-group EBGP_AGN_PEERS
update-source Loopback0
!
!
!
Kod: Zaznacz cały
R2#sh ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override
Gateway of last resort is not set
1.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 1.1.1.4/30 is directly connected, GigabitEthernet2
L 1.1.1.5/32 is directly connected, GigabitEthernet2
8.0.0.0/32 is subnetted, 2 subnets
C 8.8.8.2 is directly connected, Loopback0
O 8.8.8.3 [110/2] via 1.1.1.6, 10:51:31, GigabitEthernet2
R2#sh ip route vrf 004
Routing Table: 004
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override
Gateway of last resort is not set
1.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
C 1.1.1.0/30 is directly connected, GigabitEthernet3
L 1.1.1.2/32 is directly connected, GigabitEthernet3
C 1.2.1.1/32 is directly connected, Loopback1
2.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
O 2.2.0.1/32 [110/2] via 10.116.255.2, 00:21:42, GigabitEthernet4.252
B 2.2.2.0/24 [20/0] via 1.1.1.1, 11:04:25
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.116.255.0/29 is directly connected, GigabitEthernet4.252
L 10.116.255.5/32 is directly connected, GigabitEthernet4.252
Kod: Zaznacz cały
RP/0/0/CPU0:Rx2#sh route
Sun Mar 8 12:09:51.179 UTC
Codes: C - connected, S - static, R - RIP, B - BGP, (>) - Diversion path
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - ISIS, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, su - IS-IS summary null, * - candidate default
U - per-user static route, o - ODR, L - local, G - DAGR, l - LISP
A - access/subscriber, a - Application route
M - mobile route, (!) - FRR Backup path
Gateway of last resort is not set
L 2.2.1.1/32 is directly connected, 00:42:49, Loopback1
RP/0/0/CPU0:Rx2#sh route vrf 004
Sun Mar 8 12:10:19.907 UTC
Codes: C - connected, S - static, R - RIP, B - BGP, (>) - Diversion path
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - ISIS, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, su - IS-IS summary null, * - candidate default
U - per-user static route, o - ODR, L - local, G - DAGR, l - LISP
A - access/subscriber, a - Application route
M - mobile route, (!) - FRR Backup path
Gateway of last resort is not set
O 1.2.1.1/32 [110/2] via 10.116.255.5, 00:28:41, GigabitEthernet0/0/0/1.252
L 2.2.0.1/32 is directly connected, 00:23:12, Loopback0
C 10.116.255.0/29 is directly connected, 01:22:12, GigabitEthernet0/0/0/1.252
L 10.116.255.2/32 is directly connected, 01:22:12, GigabitEthernet0/0/0/1.252
Kod: Zaznacz cały
router bgp 64677
bgp router-id 2.2.0.0
address-family ipv4 unicast
!
address-family vpnv4 unicast
!
neighbor-group EBGP_AGN_PEERS
remote-as 6510
address-family ipv4 unicast
!
!
vrf 004
rd 127.4.0.4:0
address-family ipv4 unicast
network 10.69.198.0/24
!
neighbor 1.2.1.1
use neighbor-group EBGP_AGN_PEERS
ebgp-multihop 3
update-source Loopback0
!
!
!
Kod: Zaznacz cały
R2#sh bgp vrf 004
BGP table version is 19, local router ID is 1.1.1.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
Route Distinguisher: 127.0.0.0:4 (default for vrf 004)
*> 1.1.1.0/30 0.0.0.0 0 32768 ?
*> 1.2.1.1/32 0.0.0.0 0 32768 ?
*> 9.9.9.0/24 1.1.1.1 0 0 6500 i
*> 10.116.255.0/29 0.0.0.0 0 32768 ?