![cisco - Can not create sub-interface like `interface gigabitEthernet 2/1.100` - Network Engineering Stack Exchange cisco - Can not create sub-interface like `interface gigabitEthernet 2/1.100` - Network Engineering Stack Exchange](https://i.stack.imgur.com/yWXk4.jpg)
cisco - Can not create sub-interface like `interface gigabitEthernet 2/1.100` - Network Engineering Stack Exchange
![Cisco SD-WAN Forwarding and QoS Configuration Guide, Cisco IOS XE Release 17.x - QoS on Subinterface [Cisco SD-WAN] - Cisco Cisco SD-WAN Forwarding and QoS Configuration Guide, Cisco IOS XE Release 17.x - QoS on Subinterface [Cisco SD-WAN] - Cisco](https://www.cisco.com/c/dam/en/us/td/i/300001-400000/360001-370000/369001-370000/369748.jpg)
Cisco SD-WAN Forwarding and QoS Configuration Guide, Cisco IOS XE Release 17.x - QoS on Subinterface [Cisco SD-WAN] - Cisco
![Chapter 15. Manually directing traffic using the IP routing table - Learn Cisco Network Administration in a Month of Lunches Chapter 15. Manually directing traffic using the IP routing table - Learn Cisco Network Administration in a Month of Lunches](https://drek4537l1klr.cloudfront.net/piper/Figures/15fig01_alt.jpg)
Chapter 15. Manually directing traffic using the IP routing table - Learn Cisco Network Administration in a Month of Lunches
![Configuring EtherChannel and 802.1Q Trunking Between Catalyst L2 Fixed Configuration Switches and a Router (InterVLAN Routing) - Cisco Configuring EtherChannel and 802.1Q Trunking Between Catalyst L2 Fixed Configuration Switches and a Router (InterVLAN Routing) - Cisco](https://www.cisco.com/c/dam/en/us/support/docs/switches/catalyst-2950-series-switches/24042-158a.gif)