Gyan,
You can signal SR-MPLS over a network that has IPv6 enabled, but does not have
IPv4 enabled.
Ron
Juniper Business Use Only
From: spring <[email protected]> On Behalf Of Gyan Mishra
Sent: Tuesday, June 23, 2020 1:20 PM
To: SPRING WG <[email protected]>
Subject: [spring] Spring SR question??
[External Email. Be cautious of content]
All
SR-MPLS utilizes IPv4 data plane and and can service v4 v6 edges 6to4 softwire
mesh framework from the VPN overlay aspect.
Can SR-MPLS use IPV6 data plane?
Reason why I am asking is that it is very simple to get from LDPv4 core to
SR-MPLS core.
However if you have an existing brown field SP core and your end goal is to get
to SRv6 - how can you easily get there.
So my thoughts are you can use SR-MPLS as a stepping stone so to speak to get
to SRv6.
To that end you could use Greg Mirsky draft of tunneling SR-MPLS in SRV6
interoperability and use other inter operability drafts.
But let's say you prefer to get from point A go point B seamlessly and native
naturally without any translation.
An analogy would be migratory to IPV6 instead of using translation technology
tunnels you dual stand the entire network and use ds-lite or LSN or 6RD to
close the gap.
So my thoughts on getting to the "end state" SRv6 are we follows:
MPLS LDPv4
MPLS LDPv6
SR-MPLS v6
Once you have a v6 core and you have decommissioned LDPv6 you now have the v6
data plan ready to go to get to SRv6
SRv6
Only caveat with this idea is I am not sure if SR-MPLS supports IPv6 data plane
v6 label binding.
Kind Regards
Gyan
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Gyan Mishra
Network Solutions Architect
M 301 502-1347
13101 Columbia Pike
Silver Spring, MD
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