Below you will find all CCNA, CCNP and CCIE R&S labs that you are looking for, if you have trouble understanding some of these topics then you might enjoy one of my helpful books.
Switching
Frame-Relay
Static Routing
RIP
OSPF
EIGRP
Redistribution
BGP
Multicast
HDLC & PPP
IPv6
Quality of Service
Tunneling & GRE
Security
Network Services
Network Management
MPLS
Troubleshooting
CCNA R&S
CCNP R&S
CCIE R&S