Comprei uma carga de hardware de roteador Cisco 26xx antigo do eBay e de amigos. Tudo foi retirado de uma rede de trabalho, por isso geralmente tenho certeza de que funciona bem.
Para responder à sua pergunta.
Você pode usar o subconjunto de comandos test para testar vários bits de hardware / software do roteador para garantir que ele passe nos testes.
router# test ?
aaa AAA Authentication, Authorization and Accounting
interfaces Network interfaces
memory Non-volatile and/or multibus memory
pas Port Adaptor Tests
scp SCP test commands
service-module Service module
sgbp
Virtual-Template Virtual Template interface
appletalk APPLETALK diagnostic code
cac test the l2 cac functionality
call Call test commands
cns CNS agents
crypto Test crypto functions
dsp Test DSP functions
eigrp IPX EIGRP test commands
enum test enum
gssapi GSSAPI test code
hpi host port interface
ifs IFS TEST code
ipc Inter-Process Communication Test Commands
ipmobile IP Mobility Test commands
pasvc PPP over ATM SVC Test Driver
pm Port Manager test commands
pppatm PPP over ATM SSS Test
pppoe PPPoE test commands
sctp SCTP test commands
source-group Test Source IP Group
spanning-tree Spanning Tree Subsystem
ssl SSL Test
sw-vlan Test VLAN Manager feature
tpu TPU test system
translation-rule Test translation rule table
voice Voice related test commands
Veja como pode ser o test interfaces ( docs )
Router# test interfaces Test Ethernet0/0 [y/n] ? y !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Passed No IP address for Serial0/0. Skipping... No IP address for BRI0/0. Skipping... No IP address for BRI0/0:1. Skipping... No IP address for BRI0/0:2. Skipping... Test Dialer1 [y/n] ? ... Failed - timeout problem Test Loopback1 [y/n] ? n Skipping... Test Tunnel1 [y/n] ? n Skipping... Test Tunnel2 [y/n] ? n Skipping... 9 interfaces: 1 passed, 1 failed, 3 skipped, 4 untestable
Você também pode executar show tech e show mem para confirmar se o hardware é o que você espera.