MPLS migration from IPv4 and IPv6

[Steev112]

                   Hello,

i have existing MPLS VPN setup using IPv4 between all devices (P,PE,CPE), i want to start to migrate to IPv6 but i want to start the migration for one link between P and PE and all other devices will be the same (IPv4). Can you please tell me how i can acheive this scenario without impcat the services because is life.

Thanks

[Deepak Ambotkar]

did you mean 'mpls' and not 'mls'?

[Steev112]

Hello Deepak,

what i faced under IP VRF test  the address-family ipv6 not available, i read you have to configure mls ipv6 vrf in global mode and try again, i did but the same issue i faced.

[Steev112]

This is an example:

PE-1(config-vrf)# ?
VPN Routing/Forwarding instance configuration commands:
  bgp              Commands pertaining to BGP
  default          Set a command to its defaults
  description      VRF specific description
  exit             Exit from VRF configuration mode
  export           VRF export
  import           VRF import
  inter-as-hybrid  Inter AS hybrid mode
  maximum          Set a limit
  mdt              Backbone Multicast Distribution Tree
  no               Negate a command or set its defaults
  protection       Configure local repair
  rd               Specify Route Distinguisher
  route-target     Specify Target VPN Extended Communities
  snmp             Modify snmp parameters
  vpn              Configure VPN ID as specified in rfc2685

PE-1(config-vrf)#

address-family ipv6 not available on the above option ?

might Cisco 7206 not support this feature ?

[Steev112]

Dear All,

when i configured IPv6 between PE and CPE the neighbor between them is idle the following the configuration between PE and CPE:

PE:

router bgp 100
bgp router-id 10.200.200.3
no bgp default ipv4-unicast
bgp log-neighbor-changes
neighbor MPLS-Group peer-group
neighbor MPLS-Group remote-as 100
neighbor MPLS-Group update-source Loopback0
neighbor MPLS-Group-IPV6 peer-group
neighbor MPLS-Group-IPV6 remote-as 100
neighbor MPLS-Group-IPV6 update-source Loopback0
neighbor 10.200.200.5 peer-group MPLS-Group
neighbor 2002:10:200:200::5 peer-group MPLS-Group-IPV6
!
address-family ipv4
  no synchronization
  no auto-summary
exit-address-family
!
address-family vpnv4
  neighbor MPLS-Group send-community both
  neighbor MPLS-Group next-hop-self
  neighbor 10.200.200.5 activate
exit-address-family
!
address-family vpnv6
  neighbor MPLS-Group-IPV6 send-community both
  neighbor MPLS-Group-IPV6 next-hop-self
  neighbor 2002:10:200:200::5 activate
exit-address-family
!
address-family ipv4 vrf TEST
  no synchronization
  redistribute connected
  neighbor 10.225.0.2 remote-as 101
  neighbor 10.225.0.2 activate
exit-address-family
!
address-family ipv6 vrf TEST
  redistribute connected
  no synchronization
  neighbor 2002:10:225::2 remote-as 101
  neighbor 2002:10:225::2 activate
exit-address-family
!

ipv6 router ospf 200
router-id 10.200.200.3
log-adjacency-changes
!
!
!
mpls ldp router-id Loopback0

CPE:

interface Loopback0

ip address 10.225.100.1 255.255.255.255

ipv6 address 2002:10:225:100::1/128

!

interface FastEthernet0/0

no ip address

shutdown

duplex half

!

interface GigabitEthernet1/0

ip address 10.225.0.2 255.255.255.252

negotiation auto

ipv6 address 2002:10:225::2/126

!

router bgp 101

no synchronization

bgp router-id 10.225.100.1

bgp log-neighbor-changes

network 10.225.100.1 mask 255.255.255.255

neighbor 10.225.0.1 remote-as 100

neighbor 2002:10:225::1 remote-as 100

no auto-summary

!

address-family ipv6

  no synchronization

  network 2002:10:225:100::1/128

  neighbor 2002:10:225::1 activate

exit-address-family

!

CPE-1#show ip bgp summary
BGP router identifier 10.225.100.1, local AS number 101
BGP table version is 4, main routing table version 4
2 network entries using 242 bytes of memory
2 path entries using 104 bytes of memory
3/2 BGP path/bestpath attribute entries using 228 bytes of memory
1 BGP AS-PATH entries using 24 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 598 total bytes of memory
BGP activity 4/0 prefixes, 4/0 paths, scan interval 60 secs

Neighbor        V    AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
10.225.0.1      4   100       6       5        4    0    0 00:01:50        1
2002:10:225::1  4   100       0       0        0    0    0 never    Idle

and i received this error:

*Nov 24 15:40:17.715: %BGP-5-ADJCHANGE: neighbor 2002:10:225::2 vpn TEST                                                                                        Up

*Nov 24 15:40:19.079: %BGP-5-ADJCHANGE: neighbor 10.225.0.2 vpn vrf TEST Up

*Nov 24 15:40:23.067: %BGP-3-NOTIFICATION: sent to neighbor 2002:10:225::2 passi                                                                                        ve 2/8 (no supported AFI/SAFI) 3 bytes 000101

Thanks

[Mohamed Sobair]

Hello,

Please add the following command under the bgp routing process of the CE router:

router bgp x

no bgp default ipv4 unicast

This should let you BGP router to support IPv6 address family as well.

Regards,

Mohamed

[Steev112]

Hi Mohamed

i added this command under bgp but still idle and the same message received:

1: BGP November 25 17:08:01.615: BGP: 2002:10:225::1 active received NOTIFICATION 2/8 (no supported AFI/SAFI) afi 1 safi 1.

router bgp 101

bgp router-id 10.225.100.1

no bgp default ipv4-unicast

bgp log-neighbor-changes

neighbor 10.225.0.1 remote-as 100

neighbor 2002:10:225::1 remote-as 100

!

address-family ipv4

  no synchronization

  network 10.225.100.1 mask 255.255.255.255

  neighbor 10.225.0.1 activate

  neighbor 2002:10:225::1 activate

  no auto-summary

exit-address-family

!

address-family ipv6

  no synchronization

  network 2002:10:225:100::1/128

  neighbor 2002:10:225::1 activate

exit-address-family

CPE-1#show ip bgp summary
BGP router identifier 10.225.100.1, local AS number 101
BGP table version is 1, main routing table version 1
2 network entries using 242 bytes of memory
2 path entries using 104 bytes of memory
3/0 BGP path/bestpath attribute entries using 228 bytes of memory
1 BGP AS-PATH entries using 24 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 598 total bytes of memory
BGP activity 12/8 prefixes, 12/8 paths, scan interval 60 secs

Neighbor        V    AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
10.225.0.1      4   100       5       2        0    0    0 00:00:46        1
2002:10:225::1  4   100       0       0        0    0    0 never    Idle
CPE-1#

Regards,

[Steev112]

Hello All,

no one can check what is this issue and how it solved.

Thanks