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Segment Routing over IPv6 (SRv6) is an extension of the IPv6 structure that permits the insertion of routing directions, often known as segments, instantly into IPv6 headers. This standards-based know-how allows simplicity, flexibility, and safety at scale. The architecture, outlined in RFC 8402, is a supply routing paradigm that permits a node inside a community to steer site visitors via a site utilizing an ordered record of segments. The record of segments instructs nodes on how one can course of a packet. As the trail info is inside a packet transit or intermediate nodes would not have to keep state of all of the paths inside a community.
IP Version 6 (IPv6), as famous in IPv6 OMB Mandate: What’s Your Strategy? is the brand new IP customary for the US Federal Government. IP Version 6 gives the extra addressing and basis in the direction of a Zero Trust enabled infrastructure.
Combining Segment Routing with IPv6, often known as Segment Routing over IPv6 (SRv6), lays the muse for end-to-end providers and 0 belief safety throughout a complete group/enterprise.
Why Segment Routing
Segment routing simplifies community structure and operations by way of source-based routing. On the information aircraft Segment Routing can run by way of IPv6 or by way of multiprotocol label switching (MPLS). With the OMB IPv6-Only mandate and the inherent advantages of SRv6, authorities organizations must be gearing in the direction of SRv6.
SRv6 empowers community operators with enhanced site visitors engineering and the power to transcend. SRv6 allows environment friendly and resilient useful resource utilization, Any VPN, Service Function Chaining (SFC), 5G habits natively with IPv6, and optimized path choice. The simplicity gained via decreased management aircraft complexity facilitates organizational visibility, operational simplicity, and infrastructure administration. Simply put, in the event you can troubleshoot IP, you’ll be able to troubleshoot SRv6. In an IPv6-Only setting SRv6 permits organizations to seamlessly scale and acquire (again) some great benefits of IP and IPv6 via handle summarization. For instance, a site of 10 or 10,000 or bigger might be summarized right into a single IPv6 commercial reachable by way of 1 easy prefix. Enterprises and huge organizations with tens of hundreds of nodes can now present full reachability with only a few IPv6 prefixes.
[ Segment Routing Details – https://segment-routing.net]
Cisco has been a frontrunner in Segment Routing and SRv6 since its inception in 2013; to incorporate transport of SRv6 since 2019. Additionally, SRv6 is integrated inside open-source initiatives and open-source communities. Going ahead this may proceed to drive improvement and interoperability of SRv6 and provide advantages by way of innovation, collaboration, and customization in assembly and exceeding enterprise and mission goals. Some examples of open-source initiatives embrace the Fast Data Project FD.io, SAI/SONiC, and Free-Range Routing (FRR). A extra complete record might be discovered at: https://www.segment-routing.net/open-software
Public Sector and Enterprise Use Cases
SRv6 together with IPv6-Only is relevant wherever inside a company. Across authorities and public entities this consists of regional schooling networks, broadband and center mile initiatives, healthcare (e.g., telemedicine), 5G, Private 5G, IoT, and Edge. Future use-cases are quite a few with advantages past legacy infrastructure; to incorporate extension of SRv6 providers to the appliance layer.
An glorious high-level design (HLD) of SRv6 might be discovered right here: Cisco Converged SDN Transport SRv6 High Level Design. The ideas inside this HLD reminiscent of a core community are the identical as a self-managed huge space community or core community of a giant enterprise. In referencing the Cisco IPv6 Journey Map , public sector organizations ought to contemplate and plan for SRv6 inside the technique/planning part. The final end result of transition to SRv6 and IPv6-only being mission success with added good thing about alignment with the OMB Mandate.
Get began with SRv6 and IPv6 in the present day and be taught extra by way of the next sources:
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