BGP-4-Byte_AS_Translation.md

• Overview
  • Scope
  • Testbed
• Setup configuration
• Test cases

Test name

BGP 4-Byte AS Translation

Overview

The goal of this test is to verify that the 4-byte to 2-byte AS translation feature operates as expected.

Scope

The test is targeting a running SONIC system with fully functioning configuration. The purpose of the test is to test for 4-Byte AS translation.

Related DUT CLI commands

Command	Comment
Configuration commands
N/A
Show commands
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 - 4-byte AS Translation

Test objective

Have a single neighbor configured with 4-byte ASN. Step 1: Configure DUT and neighbor with 4-Byte ASN Step 2: Verify 4-byte BGP session between DUT and neighbor is established Step 3: Verify BGP is established for 4-byte neighbor and down for 2-byte neighbors Step 3: Configure DUT to use 2-byte local-ASN for 2-byte neighbors Step 4: Verify BGP is now established for 4-byte neighbor AND 2-byte neighbors Step 5: Verify 2-byte neighbors receive routes from upstream 4-byte routers