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MPLS in IPv6 Backbone - MPLS over OPFv3

lorenzbauer
Level 1
Level 1

A1.jpg

 Hello guys,

I am trying to implement MPLS in my A1(ISP in Austria) Backbone. The Backbone runs entirely on IPv6 Adresses + OSPFv3.

My question is how I would be able to implement MPLS in this network. Do I need to enable LDPv6? If yes how do I do this?

Currently I am implementing this in GNS3 with the image Cisco IOSv 15.6(2)T.

Sample Configuration( until now):

A1-BB2(config)# mpls ip
A1-BB2(config)# l2 router-id 3.3.3.3
A1-BB2(config)#.int range g0/0-3
A1-BB2(config-if-range)# mpls ip

Output: *Jan 3 11:11:18.123: %TDP-4-IDENT: cannot set default TDP ident

show mpls ldp neighbor
TDP running; needs TDP Identifier
; no tag-enabled interfaces or directed hellos

sh mpls interfaces
Interface IP Tunnel BGP Static Operational
GigabitEthernet0/0 Yes (ldp) No No No Yes
GigabitEthernet0/1 Yes (ldp) No No No Yes
GigabitEthernet0/2 Yes (ldp) No No No Yes
GigabitEthernet0/3 Yes (ldp) No No No Yes

sh mpls ldp parameters
LDP Feature Set Manager: State Initialized
LDP features:
Basic
IP-over-MPLS
TDP
IGP-Sync
Auto-Configuration
TCP-MD5-Rollover
Protocol version: 1
Session hold time: 180 sec; keep alive interval: 60 sec
Discovery hello: holdtime: 15 sec; interval: 5 sec
Discovery targeted hello: holdtime: 90 sec; interval: 10 sec
Downstream on Demand max hop count: 255
LDP for targeted sessions
LDP initial/maximum backoff: 15/120 sec
LDP loop detection: off

Thanks in advance,

Lorenz

1 Accepted Solution

Accepted Solutions

Harold Ritter
Spotlight
Spotlight

Hi @lorenzbauer ,

My question is how I would be able to implement MPLS in this network. Do I need to enable LDPv6? If yes > how do I do this?

Yes, you indeed need LDPv6. It is not supported in IOS though. It is only available with IOS-XR. Even if you deploy LDPv6 with IOS-XR, there is no support for MPLS services, such as L3VPN and L2VPN.

If you want to run L3VPN, L2VPN and traffic engineering over an IPv6 only core, I would recommend to deploy SRv6. Quite a few service providers have successfully deployed it yet.

More information on SRv6 can be found at the following site:

https://www.segment-routing.net

Regards,

Regards,
Harold Ritter, CCIE #4168 (EI, SP)

View solution in original post

2 Replies 2

Harold Ritter
Spotlight
Spotlight

Hi @lorenzbauer ,

My question is how I would be able to implement MPLS in this network. Do I need to enable LDPv6? If yes > how do I do this?

Yes, you indeed need LDPv6. It is not supported in IOS though. It is only available with IOS-XR. Even if you deploy LDPv6 with IOS-XR, there is no support for MPLS services, such as L3VPN and L2VPN.

If you want to run L3VPN, L2VPN and traffic engineering over an IPv6 only core, I would recommend to deploy SRv6. Quite a few service providers have successfully deployed it yet.

More information on SRv6 can be found at the following site:

https://www.segment-routing.net

Regards,

Regards,
Harold Ritter, CCIE #4168 (EI, SP)

Good to know :).

Thank you very much