07-28-2016 08:54 AM
Hi,
I read an atricles on an internet but still bit confused for the use and defination of L2 & L3 VPN.
Can someone please explain below terms and its usage :
1)L2 MPLS VPN
2)L3 MPLS VPN
Solved! Go to Solution.
07-29-2016 05:41 AM
Hello,
With an L2VPN service you connect with your MPLS provider at layer 2. Hence, you do not run any IP services or any routing with your MPLS provider. Hence your two remote sites being connected via this L2VPN service see each other as directly connected at L3 and you run routing protocols between your two sites.
With L3VPN service you connect with your MPLS provider at layer 3. Hence, you will have to run IP services with your provider. Hence you will peer up with your provider using a Routing Protocol and engage in route exchange. The MPLS provider will then send these routes to their remote PE and then advertise these routes to your remote site at L3. At the remote site you would also peer up with L3 to your provider and have this routes advertised to you. So in this scenario, your two remote site routers will not appear as directly connected.
Let me know if that clears up any of your doubts.
Thx,
Vic
07-28-2016 09:04 AM
Hello,
Please take a look at the following post where this query was addressed. Let us know if you still have questions between these two technologies.
https://supportforums.cisco.com/discussion/13042026/l2-vpn-vs-l3-vpn
Thx,
Vic
07-29-2016 02:44 AM
Victor thanks for the information but
I would like still more information, because this is a generic information provided but i would like for what purpose and what is the exact differnce between L2VPN and L3VPN in MPLS
07-29-2016 05:41 AM
Hello,
With an L2VPN service you connect with your MPLS provider at layer 2. Hence, you do not run any IP services or any routing with your MPLS provider. Hence your two remote sites being connected via this L2VPN service see each other as directly connected at L3 and you run routing protocols between your two sites.
With L3VPN service you connect with your MPLS provider at layer 3. Hence, you will have to run IP services with your provider. Hence you will peer up with your provider using a Routing Protocol and engage in route exchange. The MPLS provider will then send these routes to their remote PE and then advertise these routes to your remote site at L3. At the remote site you would also peer up with L3 to your provider and have this routes advertised to you. So in this scenario, your two remote site routers will not appear as directly connected.
Let me know if that clears up any of your doubts.
Thx,
Vic
07-29-2016 06:55 AM
Thanks Victor.
07-29-2016 07:02 AM
Not a problem!
Vic
09-14-2016 06:56 AM
L2 VPN and L3 VPN
L2 VPN
L3 VPN
02-16-2019 01:31 AM
Is the above response for L3VPN is correct?
02-16-2019 08:16 AM
Hi,
Yes, at high level that would be correct.
Regards,
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