CE-PE Routing: Configuring
using EIGRP
·
There
are many options for CE-PE routing.
·
In
this post, let me configure routing between CE-PE using protocol EIGRP
·
In
PE router, we need to enable the CE-PE link under “address-family ipv4 vrf VPN_A” in EIGRP.
·
In CE router, we need to enable the CE-PE
link normally in EIGRP.
VRF Configuration:
PE1:
PE1(config)#ip
vrf VPN_A
PE1(config-vrf)#rd
100:1
PE1(config-vrf)#route-target
both 100:1
PE1(config-vrf)#do show run int ser1/0
Building
configuration...
Current
configuration : 87 bytes
!
interface
Serial1/0
ip address 10.1.13.3 255.255.255.0
serial restart-delay 0
end
PE1(config-vrf)#int
ser1/0
PE1(config-if)#ip
vrf forwarding VPN_A
%
Interface Serial1/0 IP address 10.1.13.3 removed due to enabling VRF VPN_A
PE1(config-if)#ip
address 10.1.13.3 255.255.255.0
PE1(config-if)#do ping vrf VPN_A 10.1.13.1
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 10.1.13.1, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 4/17/44 ms
PE1(config-if)#
CE1:
CE1(config-if)#do show run int ser1/0
Building
configuration...
Current
configuration : 87 bytes
!
interface
Serial1/0
ip address 10.1.13.1 255.255.255.0
serial restart-delay 0
end
CE1(config-if)#do ping 10.1.13.3
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 10.1.13.3, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 4/25/44 ms
CE1(config-if)#
Observation:
·
CE1-PE1
link is up
PE1:
PE2(config-router-af)#ip
vrf VPN_A
PE2(config-vrf)#rd
100:1
PE2(config-vrf)#route-target
both 100:1
PE2(config-vrf)#do show run int ser1/0
Building
configuration...
Current
configuration : 87 bytes
!
interface
Serial1/0
ip address 10.1.24.4 255.255.255.0
serial restart-delay 0
end
PE2(config-vrf)#int
ser1/0
PE2(config-if)#do
show run int ser1/0
Building
configuration...
Current
configuration : 87 bytes
!
interface
Serial1/0
ip address 10.1.24.4 255.255.255.0
serial restart-delay 0
end
PE2(config-if)#ip
vrf forwarding VPN_A
%
Interface Serial1/0 IP address 10.1.24.4 removed due to enabling VRF VPN_A
PE2(config-if)#ip
address 10.1.24.4 255.255.255.0
PE2(config-if)#do ping vrf VPN_A 10.1.24.2
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 10.1.24.2, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 4/16/36 ms
PE2(config-if)#
CE2:
CE2(config-if)#do show run int ser1/0
Building
configuration...
Current
configuration : 87 bytes
!
interface
Serial1/0
ip address 10.1.24.2 255.255.255.0
serial restart-delay 0
end
CE2(config-if)#do ping 10.1.24.4
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 10.1.24.4, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 4/24/64 ms
CE2(config-if)#
Observation:
·
CE2-PE2
link is up
IGP-OSPF
Configuration between PE1-PE2:
PE1(config-if)#do
show run | begin router ospf
router
ospf 1
router-id 3.3.3.3
log-adjacency-changes
network 3.3.3.3 0.0.0.0 area 0
network 100.1.34.3 0.0.0.0 area 0
!
PE2(config-if)#do
show run | begin router ospf
router
ospf 1
router-id 4.4.4.4
log-adjacency-changes
network 4.4.4.4 0.0.0.0 area 0
network 100.1.34.4 0.0.0.0 area 0
!
MP-iBGP
configuration between PE1-PE2:
PE1(config)#do show
run | begin router bgp
router
bgp 100
bgp router-id 3.3.3.3
no bgp default ipv4-unicast
bgp log-neighbor-changes
neighbor 4.4.4.4 remote-as 100
neighbor 4.4.4.4 update-source Loopback0
!
address-family vpnv4
neighbor 4.4.4.4 activate
neighbor 4.4.4.4 send-community extended
exit-address-family
!
address-family ipv4 vrf VPN_A
no synchronization
exit-address-family
!
PE2(config-router-af)#do
show run | begin router bgp
router
bgp 100
bgp router-id 4.4.4.4
no bgp default ipv4-unicast
bgp log-neighbor-changes
neighbor 3.3.3.3 remote-as 100
neighbor 3.3.3.3 update-source Loopback0
!
address-family vpnv4
neighbor 3.3.3.3 activate
neighbor 3.3.3.3 send-community extended
exit-address-family
!
address-family ipv4 vrf VPN_A
no synchronization
exit-address-family
!
Configuring MPLS in the Core (between PE1-PE2):
PE1(config)#int
ser1/1
PE1(config-if)#mpls
ip
PE1(config-if)#
PE2(config)#int
ser1/1
PE2(config-if)#mpls
ip
PE2(config-if)#
Configuring EIGRP between CE1-PE1:
CE1(config-if)#router eigrp 100
CE1(config-router)#eigrp
router-id 1.1.1.1
CE1(config-router)#network
10.1.13.1 0.0.0.0
CE1(config-router)#network
1.1.1.1 0.0.0.0
CE1(config-router)#do
show ip eigrp nei
IP-EIGRP
neighbors for process 100
CE1(config-router)#
PE1(config)#router eigrp 100
PE1(config-router)#eigrp
router-id 3.3.3.3
PE1(config-router)#address-family
ipv4 vrf VPN_A
PE1(config-router-af)#network
10.1.13.3 0.0.0.0
PE1(config-router-af)#autonomous-system
100
PE1(config-router-af)#end
PE1#
CE1#show ip eigrp neighbors
IP-EIGRP
neighbors for process 100
H Address Interface Hold Uptime SRTT
RTO Q Seq
(sec) (ms) Cnt Num
0 10.1.13.3 Se1/0 14 00:03:56 64
384 0 10
CE1#
PE1#show ip eigrp vrf VPN_A neighbors
IP-EIGRP
neighbors for process 100
H Address Interface Hold Uptime SRTT
RTO Q Seq
(sec) (ms) Cnt Num
0 10.1.13.1 Se1/0 14 00:04:19 57
342 0 7
PE1#
PE1#show ip route vrf VPN_A
Routing
Table: VPN_A
Codes:
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
Gateway
of last resort is not set
1.0.0.0/32 is subnetted, 1 subnets
D 1.1.1.1 [90/2297856] via 10.1.13.1,
00:01:08, Serial1/0
10.0.0.0/24 is subnetted, 1 subnets
C 10.1.13.0 is directly connected,
Serial1/0
PE1#ping vrf VPN_A 1.1.1.1
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 4/13/32 ms
PE1#
CE2(config-if)#router eigrp 100
CE2(config-router)#no
auto-summary
CE2(config-router)#eigrp
router-id 2.2.2.2
CE2(config-router)#network
10.1.24.2 0.0.0.0
CE2(config-router)#network
2.2.2.2 0.0.0.0
CE2(config-router)#
*Mar 1 00:54:17.363: %DUAL-5-NBRCHANGE:
IP-EIGRP(0) 100: Neighbor 10.1.24.4 (Serial1/0) is up: new adjacency
CE2(config-router)#
PE2(config-router-af)#router eigrp 100
PE2(config-router)#no
auto-summary
PE2(config-router)#address-family
ipv4 vrf VPN_A
PE2(config-router-af)#autonomous-system
100
PE2(config-router-af)#no
auto
PE2(config-router-af)#network
10.1.24.4 0.0.0.0
*Mar 1 00:54:16.651: %DUAL-5-NBRCHANGE:
IP-EIGRP(1) 100: Neighbor 10.1.24.2 (Serial1/0) is up: new adjacency
PE2(config-router-af)#
PE2(config-router-af)#
CE2#show ip eigrp neighbors
IP-EIGRP
neighbors for process 100
H Address Interface Hold Uptime SRTT
RTO Q Seq
(sec) (ms) Cnt Num
0 10.1.24.4 Se1/0 10 00:00:41 64
384 0 3
CE2#
PE2#show ip eigrp vrf VPN_A neighbors
IP-EIGRP
neighbors for process 100
H Address Interface Hold Uptime SRTT
RTO Q Seq
(sec) (ms) Cnt Num
0 10.1.24.2 Se1/0 10 00:00:18 69
414 0 3
PE2#show ip route vrf VPN_A
Routing
Table: VPN_A
Codes:
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
Gateway
of last resort is not set
2.0.0.0/32 is subnetted, 1 subnets
D 2.2.2.2 [90/2297856] via 10.1.24.2,
00:00:26, Serial1/0
10.0.0.0/24 is subnetted, 1 subnets
C 10.1.24.0 is directly connected,
Serial1/0
PE2#ping vrf VPN_A 2.2.2.2
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 4/16/28 ms
PE2#
Mutual redistribution between EIGRP and
BGP:
PE1(config)#router
eigrp 100
PE1(config-router)#address-family
ipv4 vrf VPN_A
PE1(config-router-af)#redistribute bgp 100 metric 1 1 1 1 1
PE1(config-router-af)#router
bgp 100
PE1(config-router)#address-family
ipv4 vrf VPN_A
PE1(config-router-af)#redistribute eigrp 100
PE1(config-router-af)#redistribute
connected
PE1(config-router-af)#
PE2(config)#router
eigrp 100
PE2(config-router)#address-family
ipv4 vrf VPN_A
PE2(config-router-af)#redistribute bgp 100 metric 1 1 1 1 1
PE2(config-router-af)#router
bgp 100
PE2(config-router)#address-family
ipv4 vrf VPN_A
PE2(config-router-af)#redistribute eigrp 100
PE2(config-router-af)#redistribute
connected
PE2(config-router-af)#
Now, let’s check Routing tables in CE routers:
CE1#show ip route
Codes:
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
Gateway
of last resort is not set
1.0.0.0/32 is subnetted, 1 subnets
C 1.1.1.1 is directly connected, Loopback0
2.0.0.0/32 is subnetted, 1 subnets
D
2.2.2.2 [90/2809856] via 10.1.13.3, 00:04:55, Serial1/0
10.0.0.0/24 is subnetted, 2 subnets
C 10.1.13.0 is directly connected,
Serial1/0
D
10.1.24.0 [90/2681856] via 10.1.13.3, 00:04:55, Serial1/0
CE1#ping 2.2.2.2
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 12/30/68 ms
CE1#
CE2#show ip route
Codes:
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
Gateway
of last resort is not set
1.0.0.0/32 is subnetted, 1 subnets
D
1.1.1.1 [90/2809856] via 10.1.24.4, 00:04:06, Serial1/0
2.0.0.0/32 is subnetted, 1 subnets
C 2.2.2.2 is directly connected, Loopback0
10.0.0.0/24 is subnetted, 2 subnets
D
10.1.13.0 [90/2681856] via 10.1.24.4, 00:04:06, Serial1/0
C 10.1.24.0 is directly connected,
Serial1/0
CE2#ping 1.1.1.1
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 12/32/76 ms
CE2#
Observation:
·
CE1
has the route of CE2’s loopback 2.2.2.2/32
·
CE2
has the route of CE1’s loopback 1.1.1.1/32
·
CE
routers install these routes form other CE as Internal EIGRP route, D routes.
·
Internal
routes from one CE came as internal routes in other CE also.
·
Now,
let’s see what will happen for External routes.
·
Let
me create another loopback in CE routers and redistribute into EIGRP to make as
External route.
CE1(config)#int
loop1
CE1(config-if)#ip
address 11.11.11.11 255.255.255.255
CE1(config-if)#route-map
LOOP
CE1(config-route-map)#match
interface loop1
CE1(config-route-map)#router
eigrp 100
CE1(config-router)#redistribute
connected route-map LOOP metric 1 1 1 1 1
CE1(config-router)#
CE2(config)#int
loop1
CE2(config-if)#ip
address 22.22.22.22 255.255.255.255
CE2(config-if)#route-map
LOOP
CE2(config-route-map)#match
interface loop1
CE2(config-route-map)#router
eigrp 100
CE2(config-router)#redistribute
connected route-map LOOP metric 1 1 1 1 1
CE2(config-router)#
Now, Let’s see the routing tables in CE routers:
CE1#show ip route
Codes:
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
Gateway
of last resort is not set
1.0.0.0/32 is subnetted, 1 subnets
C 1.1.1.1 is directly connected, Loopback0
2.0.0.0/32 is subnetted, 1 subnets
D
2.2.2.2 [90/2809856] via 10.1.13.3, 00:14:18, Serial1/0
22.0.0.0/32 is subnetted, 1 subnets
D EX
22.22.22.22 [170/2561024256] via 10.1.13.3, 00:01:03, Serial1/0
10.0.0.0/24 is subnetted, 2 subnets
C 10.1.13.0 is directly connected,
Serial1/0
D 10.1.24.0 [90/2681856] via 10.1.13.3,
00:14:18, Serial1/0
11.0.0.0/32 is subnetted, 1 subnets
C 11.11.11.11 is directly connected,
Loopback1
CE1#
CE1#ping 22.22.22.22
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 22.22.22.22, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 8/34/68 ms
CE1#
CE2#show ip route
Codes:
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
Gateway
of last resort is not set
1.0.0.0/32 is subnetted, 1 subnets
D
1.1.1.1 [90/2809856] via 10.1.24.4, 00:15:08, Serial1/0
2.0.0.0/32 is subnetted, 1 subnets
C 2.2.2.2 is directly connected, Loopback0
22.0.0.0/32 is subnetted, 1 subnets
C 22.22.22.22 is directly connected,
Loopback1
10.0.0.0/24 is subnetted, 2 subnets
D 10.1.13.0 [90/2681856] via 10.1.24.4,
00:15:08, Serial1/0
C 10.1.24.0 is directly connected,
Serial1/0
11.0.0.0/32 is subnetted, 1 subnets
D EX
11.11.11.11 [170/2561024256] via 10.1.24.4, 00:04:23, Serial1/0
CE2#
CE2#ping 11.11.11.11
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 11.11.11.11, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 12/33/72 ms
CE2#
Observation:
·
CE1
has the route of CE2’s loopback 22.22.22.22/32
·
CE2
has the route of CE1’s loopback 11.11.11.11/32
·
CE
routers install these routes form other CE as External EIGRP route, D EX
routes.
·
External
routes from one CE came as External routes in other CE.
·
Now,
let’s try anoter scenario, where the CEs are in different EIGRP AS.
·
Let
me configure CE2 in EIGRP AS 200
CE2(config)#no
router eigrp 100
*Mar 1 01:22:19.479: %DUAL-5-NBRCHANGE:
IP-EIGRP(0) 100: Neighbor 10.1.24.4 (Serial1/0) is down: interface down
CE2(config)#router
eigrp 200
CE2(config-router)#
redistribute connected metric 1 1 1 1 1 route-map LOOP
CE2(config-router)#
network 2.2.2.2 0.0.0.0
CE2(config-router)#
network 10.1.24.2 0.0.0.0
CE2(config-router)#
no auto-summary
CE2(config-router)#
eigrp router-id 2.2.2.2
CE2(config-router)#!
CE2(config-router)#
PE2(config)#no
router eigrp 100
PE2(config)#router
eigrp 200
PE2(config-router)#
no auto-summary
PE2(config-router)#
!
PE2(config-router)#
address-family ipv4 vrf VPN_A
PE2(config-router-af)# redistribute bgp 100 metric 1 1 1 1 1
PE2(config-router-af)# network 10.1.24.4 0.0.0.0
PE2(config-router-af)# network 10.0.0.0
PE2(config-router-af)# no auto-summary
PE2(config-router-af)# autonomous-system 200
PE2(config-router-af)#
*Mar 1 01:24:05.967: %DUAL-5-NBRCHANGE:
IP-EIGRP(1) 200: Neighbor 10.1.24.2 (Serial1/0) is up: new adjacency
PE2(config-router-af)#
PE2(config-router-af)#router
bgp 100
PE2(config-router)#address-family
ipv4 vrf VPN_A
PE2(config-router-af)#redistribute
eigrp 200
PE2(config-router-af)#
Now, let’s see the routing tables in CE routers:
CE1#show ip
route
Codes:
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
Gateway
of last resort is not set
1.0.0.0/32 is subnetted, 1 subnets
C 1.1.1.1 is directly connected, Loopback0
2.0.0.0/32 is subnetted, 1 subnets
D EX
2.2.2.2 [170/2560512256] via 10.1.13.3, 00:00:43, Serial1/0
22.0.0.0/32 is subnetted, 1 subnets
D EX
22.22.22.22 [170/2560512256] via 10.1.13.3, 00:00:43, Serial1/0
10.0.0.0/24 is subnetted, 2 subnets
C 10.1.13.0 is directly connected,
Serial1/0
D EX
10.1.24.0 [170/2560512256] via 10.1.13.3, 00:01:54, Serial1/0
11.0.0.0/32 is subnetted, 1 subnets
C 11.11.11.11 is directly connected,
Loopback1
CE1#
CE2#show ip
route
Codes:
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
Gateway
of last resort is not set
1.0.0.0/32 is subnetted, 1 subnets
D EX
1.1.1.1 [170/2560512256] via 10.1.24.4, 00:01:55, Serial1/0
2.0.0.0/32 is subnetted, 1 subnets
C 2.2.2.2 is directly connected, Loopback0
22.0.0.0/32 is subnetted, 1 subnets
C 22.22.22.22 is directly connected,
Loopback1
10.0.0.0/24 is subnetted, 2 subnets
D EX
10.1.13.0 [170/2560512256] via 10.1.24.4, 00:01:55, Serial1/0
C 10.1.24.0 is directly connected,
Serial1/0
11.0.0.0/32 is subnetted, 1 subnets
D EX
11.11.11.11 [170/2560512256] via 10.1.24.4, 00:01:55, Serial1/0
CE2#
Observation:
·
CE1
has the routes from CE2’s as EIGRP External routes.
·
CE2
has the routes from CE2’s as EIGRP External routes.
·
If
the CEs are in different EIGRP ASes, then all the routes will appear as
External in other CE router.
EIGRP SOO:
·
Concept
is similar to BGP SOO
·
In multihomed environments, if CE
routers have backdoor link, then there is a probability of getting loops.
·
In EIGRP, there is an extended community
called Site Of Origin, SOO attribute to avoid this situation.
·
This is used basically to tag the
route where it is initially originated, so that it can never send back to the
same source.
·
Its generally configure in PE
router, towards the CE.
·
Let’s see how to configure this.
PE1(config)#route-map
SITE
PE1(config-route-map)#set
extcommunity soo 333:3
PE1(config-route-map)#
PE1(config-router-af)#int
ser1/0
PE1(config-if)#ip
vrf route
PE1(config-if)#ip
vrf ?
forwarding
Configure forwarding table
receive
Add Interface Address into VRF Table
sitemap
Configure route-map for routes received from this site
PE1(config-if)#ip vrf sitemap SITE
PE1(config-if)#
*Mar 1 01:35:03.399: %DUAL-5-NBRCHANGE:
IP-EIGRP(1) 100: Neighbor 10.1.13.1 (Serial1/0) is down: SoO changed
*Mar 1 01:35:03.919: %DUAL-5-NBRCHANGE:
IP-EIGRP(1) 100: Neighbor 10.1.13.1 (Serial1/0) is up: new adjacency
PE1(config-if)#
PE2(config)#route-map
SITE
PE2(config-route-map)#set
extcommunity soo 444:4
PE2(config-route-map)#int
ser1/0
PE2(config-if)#ip vrf sitemap SITE
PE2(config-if)#
*Mar 1 01:36:07.259: %DUAL-5-NBRCHANGE:
IP-EIGRP(1) 200: Neighbor 10.1.24.2 (Serial1/0) is down: SoO changed
PE2(config-if)#
*Mar 1 01:36:10.883: %DUAL-5-NBRCHANGE:
IP-EIGRP(1) 200: Neighbor 10.1.24.2 (Serial1/0) is up: new adjacency
PE2(config-if)#
PE1#show ip bgp
vpnv4 all 1.1.1.1
BGP
routing table entry for 100:1:1.1.1.1/32, version 30
Paths:
(1 available, best #1, table VPN_A)
Advertised to update-groups:
1
Local
10.1.13.1 from 0.0.0.0 (3.3.3.3)
Origin incomplete, metric 2297856,
localpref 100, weight 32768, valid, sourced, best
Extended Community: SoO:333:3 RT:100:1
Cost:pre-bestpath:128:2297856
(default-2145185791) 0x8800:32768:0
0x8801:100:640000 0x8802:65281:1657856
0x8803:65281:1500
mpls labels in/out 19/nolabel
PE1#
PE1#show ip bgp
vpnv4 all 11.11.11.11
BGP
routing table entry for 100:1:11.11.11.11/32, version 31
Paths:
(1 available, best #1, table VPN_A)
Advertised to update-groups:
1
Local
10.1.13.1 from 0.0.0.0 (3.3.3.3)
Origin incomplete, metric 2560512256,
localpref 100, weight 32768, valid, sourced, best
Extended Community: SoO:333:3 RT:100:1
Cost:pre-bestpath:129:2560512256
(default+413028609) 0x8800:0:0
0x8801:100:512256 0x8802:257:2560000000
0x8803:257:1 0x8804:0:16843009
0x8805:11:0
mpls labels in/out 17/nolabel
PE1#
PE2#show ip bgp
vpnv4 all 2.2.2.2
BGP
routing table entry for 100:1:2.2.2.2/32, version 33
Paths:
(1 available, best #1, table VPN_A)
Flag:
0x820
Advertised to update-groups:
1
Local
10.1.24.2 from 0.0.0.0 (4.4.4.4)
Origin incomplete, metric 2297856, localpref 100, weight 32768, valid,
sourced, best
Extended Community: SoO:444:4 RT:100:1
Cost:pre-bestpath:128:2297856
(default-2145185791) 0x8800:32768:0
0x8801:200:640000 0x8802:65281:1657856 0x8803:65281:1500
mpls labels in/out 18/nolabel
PE2#
PE2#show ip bgp
vpnv4 all 22.22.22.22
BGP
routing table entry for 100:1:22.22.22.22/32, version 34
Paths:
(1 available, best #1, table VPN_A)
Flag:
0x820
Advertised to update-groups:
1
Local
10.1.24.2 from 0.0.0.0 (4.4.4.4)
Origin incomplete, metric 2560512256,
localpref 100, weight 32768, valid, sourced, best
Extended Community: SoO:444:4 RT:100:1
Cost:pre-bestpath:129:2560512256
(default+413028609) 0x8800:0:0
0x8801:200:512256 0x8802:257:2560000000
0x8803:257:1 0x8804:0:33686018
0x8805:11:0
mpls labels in/out 21/nolabel
PE2#
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