01-03-2023 04:03 AM
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
Solved! Go to Solution.
01-03-2023 06:48 AM - edited 01-03-2023 06:50 AM
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,
01-03-2023 06:48 AM - edited 01-03-2023 06:50 AM
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,
01-03-2023 06:52 AM
Good to know :).
Thank you very much
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