3/14/2023 0 Comments Subnet mask table excelUsing the switchport diagram, you can target particular devices, and ensure that your network cabling requirements have been achieved, when installing VMware Hosts, my main goal is to ensure that the physical server NICs are split across multiple switches in a way that the host can carry on working without affecting the VM’s should a switch fail.įrom a technical perspective this can be worked out by looking at the device names against the switchport number, however from a high level view, including something similar to the 3rd screenshot, where by you represent the Physical layout, you can demonstrate how the ports are linked to the switches. You can also include additional headings where you can simple mark it as true or false with an “X”, such as īy capturing this information, you can quickly build up and idea of your network from a physical point of view, where by you can easily spot configuration mistakes, such as ports in the wrong VLAN, or servers that have the wrong DNS settings set. Remote Console IP (iLO IP or iDrac, etc).NIC Adapter (Name of NIC within the OS).If your Address Ranges for Servers to Clients are different, you can split the tabs up to reflect this.įor Clients, you can record the static IP information, with headings such as įor the Servers however you may want more detailed information which will cover headings such as So here we can go into as much or as little detail as needed really. So lets look at the Global Scheme headings we need and how we can include the Public IP address information with this Static Mappings for DHCP Scopes/Sites etc.Understanding the IP address schemes in use within a company can go a long way in being able to quickly identify devices currently on the network, and available spaces for new devices to be implemented. This can be added to the above document on additional tabs, or as a separate document. This is particularly helpful for the SAN device, where we can see that we can tolerate a failure of a switch, and still have an active SAN, or a failure of a controller, and still have an active SAN. Showing if one switch fails, the device will remain operational due to the redundancy. By doing this for each device, we can see quickly and clearly, which VLAN a particular NIC is in, and that is balanced evenly against the switches/slots. Looking at the below, we can see which port if we were looking at the physical rear of the device, is port 1, with colours used to represent the VLAN’s once again. So in the first screenshot, we can see that EDUC-ESX1-ETH1 is plugged into Top Core Switch port 1. The devices also have their own colour as well, included as well for reference is which HP Switch trunk interfaces are mapped to the devices aswell.įinally, I include a basic representation of the devices physical NIC layout, the identifying number used, and which Switch/Slot it is plugged into. We have a colour used for where an interface has multiple VLANs trunked. So we can identify VLANs via colour, used along the top where the interface number is. Also identifying which physical NIC on the deviceĪt the bottom of the table, I have my Legend, so to speak, where additional information about the connections may be held.The name of the device connected to the interface.The interface numbers (I usually find 24 ports per line is best).You could use the member number, or slot number if it is a chassis.Physically Identifying which switch in the stack.So lets look at this in action, or on paper (virtual paper). ![]() Each connected device has its own assigned colour.Using Excel to diagram out a given number of switches, mapping the interfaces to the hosts or devices in which is connected to them. So it’s not all creative visio diagrams, one of the best pieces of documentation I find that I produce is actually a switchport diagram. Now lets look at the other side of the coin.Ĭlick the above for the templates used in this diagram SwitchPort Diagrams/Tables Part 5 – Diagraming your (Veeam) Backups. ![]()
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