Interface & Port Naming
Standardize how you reference interfaces across documentation.
Every network vendor names interfaces differently: Cisco IOS uses G1/0/1, Juniper Junos uses et-0/0/0, and NX-OS and AOS-CX use Eth1/1. When you document a network spanning multiple vendors, record the vendor-native identifier and add a human-readable description for what the interface connects to.
The conventions below standardize both the identifiers and the description format, so a documentation entry like "Uplink to core-01" is always understood the same way.
| Example | Pattern | Notes |
|---|---|---|
| G1/0/1 | <type><slot>/<port> | Cisco IOS-style shorthand |
| et-0/0/0 | <media>-<fpc>/<pic>/<port> | Juniper Junos convention |
| Eth1/1 | Ethernet<slot>/<port> | NX-OS / AOS-CX style |
| Uplink to core-01 | <direction> to <peer> | Human-readable description format |
More Reference
Explore the other reference in the toolkit.
RFC 1918 Private IP Ranges
RFC 1918 defines the private IPv4 ranges 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16. See each range, host count, and common use.
Common TCP & UDP Ports
Reference list of common TCP and UDP ports: SSH, DNS, HTTP, HTTPS, SMTP, NTP, DHCP, SNMP, RDP, and more, with protocols and descriptions.
Fiber Connector Types
Reference guide to fiber optic connector types: LC, SC, ST, FC, MPO/MTP, and E2000 with polish, return loss, and typical use.
Ethernet Standards (IEEE 802.3)
Reference table of IEEE 802.3 Ethernet standards: 1000BASE-T, 10GBASE-T, 10GBASE-SR/LR, 25G, 40G, 100G, and 400G with media and distances.
RFC References for Network Engineers
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Reserved & Special-Use IP Addresses
Reference table of special-use IPv4 ranges: loopback, link-local (APIPA), CGNAT, TEST-NET documentation ranges, multicast, and broadcast.
Cable Color Codes (TIA-606)
TIA-606 cable color codes for structured cabling: blue for horizontal cabling, orange for demarcation, purple for common equipment, and more.
Transceiver Form Factors
Reference table of optical transceiver form factors: SFP, SFP+, SFP28, QSFP+, QSFP28, QSFP-DD, CFP2, XFP, and CXP with speeds and distances.
WiFi Standards (IEEE 802.11)
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Reference table of data center power connectors: NEMA 5-15P, L6-30P, IEC C13/C14, C19/C20, IEC 60309, Schuko, and BS 1363 with amp and voltage ratings.
Device Naming Conventions
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VLAN & Subnet Naming
Best practices for VLAN naming: descriptive names like SRV-PROD and GUEST-WIFI paired with documented VLAN IDs and subnets.