When ingress pings a USP SID, at the egress below code is executed.
4.16.2<https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-18#section-4.16.2>.
USP: Ultimate Segment Pop of the SRH
The SRH processing of the End, End.X and End.T behaviors are
modified: the instructions S02-S04 are substituted by the following
ones:
S02. If (Segments Left == 0) {
S03.1. Update the Next Header field in the preceding header to the
Next Header value of the SRH
S03.2. Decrease the IPv6 header Payload Length by the Hdr Ext Len
value of the SRH
S03.3. Remove the SRH from the IPv6 extension header chain
S03.4. Proceed to process the next header in the packet
S04. }
May be we should explicitly state here "if next header is Upper layer header
then execute section 4.1.1"
Juniper Business Use Only
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