Skylight sensor agents 22.11 Release Notes
  • 01 Feb 2023
  • 3 Minutes to read
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Skylight sensor agents 22.11 Release Notes

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Article Summary

Overview

Accedian is pleased to announce release 22.11 of Skylight sensor: agents.

Note

Starting with release 22.11 the container image names have been shortened to the format agent-AGENTTYPE-PLATFORM:RELEASE, example:
agent-throughput-amd64:r22.11

See section "Agent Installation" for updated docker pull strings


What's New

Release 22.11 of the Skylight sensor: agent contains a number of new features and functions compared to the previous 22.07 and 22.04 releases:

  • New agent - trace supporting L3-L4 path tracing with A/B comparative path views in Analytics
  • Per-session namespace / VRF support for all agents
  • Management API backwards compatible with 22.07
  • Updated helm charts for kubernetes deployment
  • Updated status tool for troubleshooting

Release Components

ComponentVersionNote
agent throughput X86_64 / AMD6422.11_1386
agent actuate X86_64 / AMD6422.11_1367
agent trace X86_64 / AMD6422.11_1390
agent transfer X86_64 / AMD6422.11_77
agent sdk X86_64 / AMD6422.11_1386
agent throughput ARM6422.11_1386
agent actuate ARM6422.11_1373
agent trace ARM6422.11_1390
agent transfer ARM6422.11_77
agent sdk ARM64 / AMD6422.11_1386
orchestration0.99.0component of Skylight analytics 22.11
roadrunner0.395.0 or later

Agent Characteristics and Capabilities

agentcapabilitymax use countvCPU* maxRAM maxDisk typicalcomment
actuateRFC5357 TWAMP light500.15 core0.3GB0.2GB20pps each
actuateRFC5357 TWAMP control500.15 core0.3GB0.2GB20pps each
actuateRFC862 UDP Echo500.15 core0.3GB0.2GB20pps each
actuateRFC792 ICMP Echo500.15 core0.3GB0.2GB20pps each
throughputRFC6349 baseline11 core0.1GB0.2GBcell
throughputRFC6349 throughput11 core0.1GB0.2GB10Gbps max
traceUDP/TCP/ICMP Paris/Dublin100 (sequentially executed)0.1 core0.1GB0.2GB
transferTCP L7 https/ftp/tcp250 (sequentially executed)0.1 core0.1GB0.2GB
roadrunner data proxy--4 cores8GB10GB2,500 concurrent sessions

A vCPU is considered as a thread on standard x86 CPU, running typically at 2.2 to 2.4GHz


Notes:
Max use count refers to the number of sessions per agent instance, multiple agents can be deployed on the same host to increase session count.
Paris/Dublin, in the Capability column, represents two different algorithms for trace route.


Upgrade Paths

Skylight sensor: agents use a destroy-redeploy model common for container applications. This means that an agent is never upgraded, it is simply replaced. In order to support this mode of operation, only the absolute minimum of configuration parameters are stored with the agent, the rest being kept in the orchestration system and downloaded to the agent at startup. The agent 22.11 is backwards compatible with the docker-compose configuration of 22.07, 22.04 and 21.12, which means the agent can be updated by changing the release version in the docker compose file.

Agent session configuration in the orchestration is compatible with 22.07, so no session or test configuration changes are required when upgrading agents or Analytics to 22.22.


Deployment Considerations

The sensor: agents deploy as containers on x86_64 and arm64 environments. Thus, a container environment is required and we recommend docker 20.10.0 or later.


Corrected Issues

IDdescriptiondetails
SA-825Agent orchestration APISorting by AgentName is not working in /api/orchestrate/v3/agents/configuration Fixed in 22.11

Known Issues

IDdescriptionworkaround
SA-306Payload size for IPv6 TWAMP can be set to larger values than the MTUDo not use larger IPv6 payload size than 1452b
SA-509TWAMP-CP: When control session is down, data is not accepted into analyticsMake sure the (3rd party) TWAMP responder is up
SA-821Control API: Deleting multiple objects in parallel may fail of more than 10 requests in parallelCheck for HTTP error 502 bad gateway and re-send the query
SA-1093throughput: reflector mode does not work fully in k8sOnly TCP port can be forwarded into container, not UDP - this makes baseline test fail

© 2024 Accedian Networks Inc. All rights reserved. Accedian®, Accedian Networks®,  the Accedian logo™, Skylight™, Skylight Interceptor™ and per-packet intel™, are trademarks or registered trademarks of Accedian Networks Inc. To view a list of Accedian trademarks visit: http://accedian.com/legal/trademarks/. 


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