TELEMETRY DISTRIBUTION IN AN OVERLAY NETWORK
Systems including at least one processor and a memory storing instructions that, when executed by the at least one processor, result in the system collecting real-time telemetry measurements for packets received at each hop of an overlay network, and the system injecting the measurements into a variable-length trailers of the packets.
1 . A method executed within an overlay network, the method comprising:
at each routing hop along a path through the overlay network, collecting real-time telemetry measurements for packets received at the hop; and
injecting the measurements into a variable-length trailers of the packets.
2 . The method of claim 1 , wherein the real-time telemetry comprises measurements of packet latency, loss, and jitter for the hop.
3 . The method of claim 2 , wherein the measurements are particular to specific endpoints for the packets.
4 . The method of claim 1 , further comprising:
operating agent components to inject the measurements into the variable-length trailers of the packets, the agent components further operating poll a billboard cloud service for BGP announcements.
5 . The method of claim 1 , wherein the trailers are Express Data Path (XDP) trailers.
6 . The method of claim 1 , wherein the measurements are injected into the trailers of the packets after ingress to the hop and prior to egress from the hop.
7 . The method of claim 1 , wherein the measurements replace measurements injected at a prior hop of the overlap network.
8 . The method of claim 7 , wherein, prior the measurements injected at the prior hop of the overlay network are utilized by a path finding service of a current hop of the overlay network prior to being replaced at the current hop.
9 . The method of claim 1 , further comprising:
duplicating packets and modifying packet headers at the hops to generate synthetic traffic comprising multiple packet configuration combinations at egress from the hops.
10 . The method of claim 1 , wherein the packets are comprised by a peer-to-peer tunnel through the overlay network.
11 . The method of claim 1 , wherein the packets each encode their path through the overlay network.
12 . A system comprising:
at least one processor;
a memory comprising instructions that, when executed by the at least one processor, result in:
the system collecting real-time telemetry measurements for packets received at each hop of an overlay network; and
the system injecting the measurements into a variable-length trailers of the packets.
13 . The system of claim 12 , wherein the real-time telemetry comprises measurements of packet latency, loss, and jitter for the hop.
14 . The system of claim 13 , wherein the measurements are particular to specific endpoints for the packets.
15 . The system of claim 12 , further comprising instructions that, when executed by the at least one processor, result in:
operating agent components to inject the measurements into the variable-length trailers of the packets, the agent components further operating poll a billboard cloud service for BGP announcements.
16 . The system of claim 12 , wherein the trailers are Express Data Path (XDP) trailers.
17 . The system of claim 12 , wherein the measurements are injected into the trailers of the packets after ingress to the hop and prior to egress from the hop.
18 . The system of claim 12 , wherein the measurements replace measurements injected at a prior hop of the overlap network.
19 . The system of claim 18 , wherein measurements injected at the prior hop of the overlay network are utilized by a path finding service of a current hop of the overlay network prior to being replaced at the current hop.
20 . The system of claim 12 , further comprising instructions that, when executed by the at least one processor, result in:
duplicating packets and modifying packet headers at the hops to generate synthetic traffic comprising multiple packet configuration combinations at egress from the hops.
21 . The system of claim 12 , wherein the packets each encode their path through the overlay network.