| Network type | MTU | Notes |
| Maximum MTU | 65535 | Maximum theoretical MTU defined in RFC1191 document |
| Hyperchannel | 65535 | - |
| 16Mbit/s IBM Token Ring | 17914 | - |
| IEEE 802.4 | 8166 | - |
| WLAN (802.11) | 7981 | - |
| IEEE 802.5 (4Mbit/s) | 4464 | - |
| FDDI | 4352 | - |
| Wideband Network | 2048 | - |
| IEEE 802.5 (4Mbit/s) | 2002 | - |
| Experimental Ethernet | 1536 | - |
| Ethernet | 1500 | - |
| Point-to-Point | 1500 | - |
| IEEE 802.3 | 1492 | - |
| SLIP | 1006 | - |
| ARPANET | 1006 | - |
| X.26 network | 576 | - |
| DEC IP Portal | 544 | - |
| NETBIOS | 512 | - |
| IEEE 802/Source-Route Bridge | 508 | - |
| ARCNET | 508 | - |
| Point-to-Point (low-delay) | 296 | - |
| Internet IPv4 | Vary on network configuration. Minimum possible value is 68 bytes | |
| Internet IPv6 | Vary on network configuration. Minimum possible value is 1280 bytes | |
| Minimal MTU | 68 | Minimal possible MTU defined in RFC1191 document |