SRv6

SRv6 End.DT4 with Path Optimization

End.DT4 function provides L3VPN service over SRv6 data plane for the customers who use IPv4 address space. Working mechanism is almost same with MPLS data plane because we we will still have VRFs and MP-BGP. End.DT4 function provides FIB lookup in a specific tenant table (VRF) at the egress PE. This would be equivalent to the …


SRv6 End.DT4 Function

One of the functions can be used part of SRv6 address is End.DT4. End.DT4 profides L3VPN service over SRv6 data plane for the customers who use IPv4 address space. End.DT4 function provides FIB lookup in a specific tenant table (VRF) at the egress PE. This would be equivalent to the per-VRF VPN label in MPLS. When a …


SRv6 End.DX2 Function

In the MPLS Data plane, we have a lot of experience over P2P L2VPN services. SRv6 can provide same functionality with MPLS Data plane and MPLS VPN label. Instead of MPLS Tunnel label and VPN label we can use Segment Routing Header (SRH). SRH is a new type of IPv6 Routing Extension Header. Any kind of function …


SRv6 End.X Function

In Segment Routing Architecture IGP Prefix Segment Identifer (Prefix-SID) is a Global Segment, advertised by ISIS or OSPF and associated with a prefix, commonly with a loopback ip address. It is also called Node SID. Segment Routing Adj-SIDs usually represent a link (peering) and have a local significance. In SRv6 SID we have Locator and Function.  Locator: Routed to the node …


SRv6 End Function

Segment Routing architecture can be applied to MPLS data plane and IPv6 data plane (SRv6). IN MPLS Data plane IGP Prefix SID and IGP Adj SIDs (Adj-SID) are used for traffic engineering. (Segment Routing IGP Segments). An SR Policy may use both Prefix SID and Adj-SIDs which are encoded as mpls label or label stack. …


SRv6 SID

SRv6 Node Types

As you know, Segment Routing can be applied to the IPv6 data plane by using routing extension headers.   SRH is a new type of IPv6 Routing Extension Header which includes one or more SRv6 SID inside. These SRv6 SIDs have locator and function fields and they used for traffic engineering, vpn services, service function chaining …


Segment Routing Header