This zip files contains wireshark captures for most of the networking protcols. This will help you in understanding packets and packet flows. Following procols are covered,

1. ICMP

2. IGMP

3. BGP

4. OSPF

5. Spanning Tree

6. 802.1q Trunking

7. VXLAN

8. Identity Service Engine

9. PIM

10. QoS

11. SSL

12. TCP

13. Traceroute

14. HSRP

15. GRE

16. ARP

17. 802.1x

18. IPv6

19. IPv6 Neighbor Discovery

20. IPv6 OSPF

21. BGP IPv6 Address Family