Tournament 4: Ghana Challenge & Solution: Ping on Aggregated Ethernet
[ Edited ]
Country Flag: GHANA
Author: Antonio Sánchez Monge
Title: Ping on Aggregated Ethernet
Difficulty: High (2 points).
Technical Description: Use ping to health-check a Gigabit Ethernet link that is part of an Aggregated Ethernet bundle.
For this challenge, you need to start the topology called: “GHANA – Ping on Aggregated Ethernet”.
As an Engineer in the Operations department, you have been requested to troubleshoot the link ge-0/0/2, and perform a ping operation of 100 packets, sized around 1000 bytes. These packets must cross the ge-0/0/2 link in a deterministic manner. The 100 packets from R1D1 to R2D2 should go through ge-0/0/2, as well as the replies, too.
The operation should not be disruptive –– the links should neither flap nor go down as a result of your troubleshooting.
You are allowed to change the configuration of the devices, but you should NOT touch the [edit interfaces] configuration, neither directly nor via configuration groups or alike. You are not allowed to execute shell commands either.
To solve this challenge provide the sequence of configurations and at which router they are set.
admin@R1D1# set protocols oam ethernet connectivity-fault-management maintenance-domain testMD level 0 maintenance-association testMA mep 1 direction down interface ge-0/0/2
admin@R2D2# set protocols oam ethernet connectivity-fault-management maintenance-domain testMD level 0 maintenance-association testMA mep 2 direction down interface ge-0/0/2
Once the above configurations are committed, you execute at R2D2 “show interfaces ge-0/0/2” so as to find its <mac-address>. Then: