No explanations.. sorry for that :-)
VLAN
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1674817143309/e4f06c8c-695d-4150-b866-f70bfbac559a.png" alt class="image--center mx-auto" />
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1674817148257/0944ebf0-62c2-4315-bf38-77523ce36305.png" alt class="image--center mx-auto" />
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1674817175274/245f620f-d1c9-416d-8b54-bb73a62b5d94.png" alt class="image--center mx-auto" />
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1674817187595/3d9616fb-7190-474d-92b8-a398ba66a385.png" alt class="image--center mx-auto" />
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1674997195467/3da5bd1a-8be6-4a40-9dda-19fe18af131e.png" alt class="image--center mx-auto" />
OSPF
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1675000894374/744afb07-dbfe-4c43-a4bb-30b7db3f1e5e.png" alt class="image--center mx-auto" />
VLSM
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1675180239008/16f243cf-e390-415d-b208-e865193c8bae.png" alt class="image--center mx-auto" />
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1675184593268/4d3317ca-ed06-4460-9ab7-b5c345715b1e.png" alt class="image--center mx-auto" />
VLAN ROAS
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1675279608054/c219ac38-0b72-476d-abf6-ac6b1988c062.png" alt class="image--center mx-auto" />
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1675344407494/8c39d5cb-02a0-434b-af28-f9a21cd2228e.png" alt class="image--center mx-auto" />
Spanning Tree
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1675352928132/5fc04540-ce73-4dd7-97fe-f7a0e6bb7ab1.png" alt class="image--center mx-auto" />
EtherChannel
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1675427824220/bfd9e9c8-d26e-4b5c-a32e-2decbbf4cf35.png" alt class="image--center mx-auto" />
Port Security
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1675434356484/5e566055-a7ac-4b47-83af-f4b70188526b.png" alt class="image--center mx-auto" />
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1676561386926/71ae6651-e3c6-42fc-8be2-ee5d30c59dcc.png" alt class="image--center mx-auto" />
SSH
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1678363599047/b12bc7c8-04ad-4aa2-b034-6b896c7fc751.png" alt class="image--center mx-auto" />
EIGRP
<img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1678443736430/1307c3ff-7c62-4513-8c33-8a5811c1f46c.png" alt class="image--center mx-auto" />

No explanations.. sorry for that :-)

VLAN

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1674817143309/e4f06c8c-695d-4150-b866-f70bfbac559a.png align="center")

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1674817148257/0944ebf0-62c2-4315-bf38-77523ce36305.png align="center")

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1674817175274/245f620f-d1c9-416d-8b54-bb73a62b5d94.png align="center")

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1674817187595/3d9616fb-7190-474d-92b8-a398ba66a385.png align="center")

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1674997195467/3da5bd1a-8be6-4a40-9dda-19fe18af131e.png align="center")

OSPF

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1675000894374/744afb07-dbfe-4c43-a4bb-30b7db3f1e5e.png align="center")

VLSM

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1675180239008/16f243cf-e390-415d-b208-e865193c8bae.png align="center")

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1675184593268/4d3317ca-ed06-4460-9ab7-b5c345715b1e.png align="center")

VLAN ROAS

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1675279608054/c219ac38-0b72-476d-abf6-ac6b1988c062.png align="center")

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1675344407494/8c39d5cb-02a0-434b-af28-f9a21cd2228e.png align="center")

Spanning Tree

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1675352928132/5fc04540-ce73-4dd7-97fe-f7a0e6bb7ab1.png align="center")

EtherChannel

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1675427824220/bfd9e9c8-d26e-4b5c-a32e-2decbbf4cf35.png align="center")

Port Security

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1675434356484/5e566055-a7ac-4b47-83af-f4b70188526b.png align="center")

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1676561386926/71ae6651-e3c6-42fc-8be2-ee5d30c59dcc.png align="center")

SSH

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1678363599047/b12bc7c8-04ad-4aa2-b034-6b896c7fc751.png align="center")

EIGRP

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1678443736430/1307c3ff-7c62-4513-8c33-8a5811c1f46c.png align="center")

iknowthings

iknowthings

Netground