03-13-2019 06:58 AM - edited 03-13-2019 06:58 AM
Hello Experts
I am looking for a solution to carry the EIGRP metric over the services provider MPLS network, this is not owned by us MPLS network so I cannot tune the bgp community to carry metric from EIGRP...
so I planned to use EIGRP OTP , with my VIRL LAB and follow some web portal. in day one it works well. But when I take a closer preparation, I have 2 questions
1) hows the configuration for DUAL RR in OTP with single mesh?
I configured 2 RR, and it works fine, then I try to disable the MPLS for one of the spoke site, (to try to failover to other back up link in my design) and I found the EIGRP OTP side route did not removed.
When I do sh ip route 1.1.1.8 (1.1.1.8 is the lo0 on my spoke router) on both RR, it seems they still learn the route from others and causing deadlock.
when spoke WAN link is up (similar output on both side.)
Routing entry for 1.1.1.8/32
Known via "eigrp 999", distance 90, metric 93994331, type internal
Redistributing via eigrp 999
Last update from 2.8.14.1 on LISP999, 00:07:03 ago
Routing Descriptor Blocks:
2.8.14.1, from 2.8.14.1, 00:07:03 ago, via LISP999
Route metric is 93994331, traffic share count is 1
Total delay is 5012 microseconds, minimum bandwidth is 56 Kbit
Reliability 253/255, minimum MTU 1514 bytes
Loading 1/255, Hops 1
* 2.8.14.1, from 2.6.14.1, 00:07:03 ago, via LISP999
Route metric is 93994331, traffic share count is 1
Total delay is 5012 microseconds, minimum bandwidth is 56 Kbit
Reliability 254/255, minimum MTU 1514 bytes
Loading 1/255, Hops 1
when spoke WAN link is down
RR1
RR1#sh ip route 1.1.1.8
Routing entry for 1.1.1.8/32
Known via "eigrp 999", distance 90, metric 93994331, type internal
Redistributing via eigrp 999
Last update from 2.8.14.1 on LISP999, 00:00:47 ago
Routing Descriptor Blocks:
* 2.8.14.1, from 2.7.14.1, 00:00:47 ago, via LISP999
Route metric is 93994331, traffic share count is 1
Total delay is 5012 microseconds, minimum bandwidth is 56 Kbit
Reliability 252/255, minimum MTU 1514 bytes
Loading 1/255, Hops 1
RR1#
RR2
RR2>sh ip route 1.1.1.8
Routing entry for 1.1.1.8/32
Known via "eigrp 999", distance 90, metric 93994331, type internal
Redistributing via eigrp 999
Last update from 2.8.14.1 on LISP999, 00:00:47 ago
Routing Descriptor Blocks:
* 2.8.14.1, from 2.6.14.1, 00:00:47 ago, via LISP999
Route metric is 93994331, traffic share count is 1
Total delay is 5012 microseconds, minimum bandwidth is 56 Kbit
Reliability 254/255, minimum MTU 1514 bytes
Loading 1/255, Hops 1
RR2>
Question 2)
After the issue 1 I do googling to see if my config is wrong, and some web site said no need to put remote-neighbors source GigabitEthernet0/2 unicast-listen lisp-encap 999 in spoke side but my lab tellng me it just not work. After I put it back I need to reset the EIGRP before the route can learn again.
configuration below
(g0/2 MPLS BGP CE facing)
RR1
RR1#sh run | sec router
router eigrp VIT-IPC
!
address-family ipv4 unicast autonomous-system 999
!
af-interface GigabitEthernet0/2
no next-hop-self
no split-horizon
exit-af-interface
!
topology base
exit-af-topology
remote-neighbors source GigabitEthernet0/2 unicast-listen lisp-encap 999
neighbor 2.7.14.1 GigabitEthernet0/2 remote 10 lisp-encap 999
network 1.0.0.0
network 2.1.6.0 0.0.0.3
network 2.6.14.0 0.0.0.3
network 10.0.0.0
exit-address-family
RR1#sh run int g0/2
Building configuration...
Current configuration : 125 bytes
!
interface GigabitEthernet0/2
mtu 1600
ip address 2.6.14.1 255.255.255.252
duplex auto
speed auto
media-type rj45
end
6-ldn-m2#
RR2
RR2#sh run | sec router ei
router eigrp VIT-IPC
!
address-family ipv4 unicast autonomous-system 999
!
af-interface GigabitEthernet0/2
no next-hop-self
no split-horizon
exit-af-interface
!
topology base
exit-af-topology
remote-neighbors source GigabitEthernet0/2 unicast-listen lisp-encap 999
neighbor 2.6.14.1 GigabitEthernet0/2 remote 10 lisp-encap 999
network 1.0.0.0
network 2.2.7.0 0.0.0.3
network 2.7.14.0 0.0.0.3
network 10.0.0.0
exit-address-family
7_ukldn-dr-m2#
7_ukldn-dr-m2#sh run int g0/2
Building configuration...
Current configuration : 125 bytes
!
interface GigabitEthernet0/2
mtu 1600
ip address 2.7.14.1 255.255.255.252
duplex auto
speed auto
media-type rj45
end
RR2#
on of spoke
SPOKE(config)#do sh run | sec router ei
router eigrp VIT-IPC
!
address-family ipv4 unicast autonomous-system 999
!
topology base
exit-af-topology
neighbor 2.6.14.1 GigabitEthernet0/2 remote 10 lisp-encap 999
neighbor 2.7.14.1 GigabitEthernet0/2 remote 10 lisp-encap 999
network 1.0.0.0
network 2.8.14.0 0.0.0.3
network 10.0.0.0
exit-address-family
SPOKE(config)#do sh run int g0/2
Building configuration...
Current configuration : 125 bytes
!
interface GigabitEthernet0/2
mtu 1600
ip address 2.8.14.1 255.255.255.252
duplex auto
speed auto
media-type rj45
end
SPOKE(config)#
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