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1 files changed, 14 insertions, 0 deletions
@@ -0,0 +1,14 @@ +* Verify tunnel MTU + + RFC 7676 section "3.2. MTU Considerations" + + Before activating a GRE tunnel and periodically thereafter, the GRE + ingress node MUST verify the tunnel's ability to carry a 1280-octet + IPv6 payload packet from ingress to egress, without fragmenting the + payload. Having executed those procedures, the GRE ingress node MUST + activate or deactivate the tunnel accordingly. + + Implementation details regarding the above-mentioned verification + procedures are beyond the scope of this document. However, a GRE + ingress node can verify tunnel capabilities by sending a 1280-octet + IPv6 packet addressed to itself through the tunnel under test.
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