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BGP-Session-Flaps.md

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Test name

BGP Session Flaps

Overview

The goal of this test is to verify that the CPU and memory do not spike during cycles of BGP sessions flapping.

Scope

The test is targeting a running SONIC system with fully functioning configuration. The purpose of the test is to test for CPU and memory spikes during BGP session flaps.

Related DUT CLI commands

Command Comment
Configuration commands
N/A
Show commands
show processes cpu Display the current CPU statistics
show ip bgp summary Dispaly current memory statistics, can be done with ipv6 too

Related DUT configuration files

N/A

Related SAI APIs

N/A

Test structure

Setup configuration

This test requires BGP neighbors to be configured and established.

Configuration scripts

N/A

Test cases

Test case #1 - Individual Neighbor Flapping

Test objective

Have a single neighbor disable and enable BGP to flap the session with DUT.

  1. Gather base CPU and memory statistics from DUT
  2. Start neighbor BGP session flapping
  3. Verify no CPU or memory spikes on DUT by running show process cpu/memory and ensuring the output is noticibly higher, either 10% more cpu or 30% more memory from baseline

Test case #2 - Multiple Neighbors Flapping

Test objective

Have all neighbors disable and enable BGP to flap their sessions with DUT.

  1. Gather base CPU and memory statistics from DUT
  2. Start all neighbor BGP sessions flapping
  3. Verify no CPU or memory spikes on DUT by running show process cpu/memory and ensuring the output is noticibly higher, either 10% more cpu or 30% more memory from baseline