<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">SR could be instantiated with 2 data planes, MPLS and IPv6 - SR-MPLS and SRv6 respectively.<div>MPLS data plane could be instantiated over either IPv4 or IPv6 (similarly to LDP6), MPLSoUDP->SRoUDP allows transport of SR-MPLS over IP/UDP(RFC8663) and could be used to build innovative, end2end architectures, e.g. <span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); -webkit-text-size-adjust: auto;">draft-bookham-rtgwg-nfix-arch.</span><br>There is SFC related work, <span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); -webkit-text-size-adjust: auto;">draft-ietf-spring-nsh-sr.</span></div><div><font color="#000000"><span style="caret-color: rgb(0, 0, 0); -webkit-text-size-adjust: auto;"><br></span></font></div><div><font color="#000000"><span style="caret-color: rgb(0, 0, 0); -webkit-text-size-adjust: auto;">And there’s whole SRv6 thingy...</span></font></div><div><font color="#000000"><span style="caret-color: rgb(0, 0, 0); -webkit-text-size-adjust: auto;"><br></span></font></div><div><font color="#000000"><span style="caret-color: rgb(0, 0, 0); -webkit-text-size-adjust: auto;">Let me know if I can help in any way.<br></span></font><br><div dir="ltr">Cheers,<div>Jeff</div></div><div dir="ltr"><br><blockquote type="cite">On Sep 10, 2020, at 08:10, aaron1@gvtc.com wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><span>Interesting... I've never heard of SPRINGv4</span><br><span></span><br><span>https://www.juniper.net/us/en/products-services/routing/ptx-series/datasheet</span><br><span>s/1000538.page </span><br><span></span><br><span>I found it in the bottom section</span><br><span></span><br><span>I wonder if SPRINGv4 is like SRv6, meaning, SPRING(SR) over IPv4 dataplane?</span><br><span>Or, am I reading way too much into that SPRINGv4 acronym?</span><br><span></span><br><span>-Aaron</span><br><span></span><br><span></span><br></div></blockquote></div></body></html>