- Inter-VLAN Communication Using an External Router: Router-on-a-Stick
- Inter-VLAN Communication Tips
- Inter-VLAN Communication on a Multilayer Switch Through a Switch Virtual Interface
- Configuration Example: Inter-VLAN Communication
- Configuring DHCP Server on a Router or Layer 3 Switch
- Verifying and Troubleshooting DHCP Configuration
- Configuring a DHCP Helper Address
- DHCP Client on a Cisco IOS Software Ethernet Interface
- Configuration Example: DHCP
- Configuring Cisco Express Forwarding
- Verifying CEF
- Troubleshooting CEF
Verifying CEF
Switch#show ip cef |
Displays entries in the Forwarding Information Base (FIB). |
Switch#show ip cef summary |
Displays a summary of the FIB. |
Switch#show ip cef unresolved |
Displays unresolved FIB entries. |
Switch#show ip cef fastethernet 0/1 |
Displays the FIB entry for the specified interface. |
Switch#show ip cef fastethernet 0/1 detail |
Displays detailed information about the FIB for the interface. |
Switch#show interface fastethernet 0/1 | begin L3 |
Displays switching statistics for the interface beginning at the section for L3. |
Switch#showinterface gigabitethernet 1/1 | include switched |
Displays switching statistics that show statistics for each layer. |
Switch#show adjacency fastethernet 0/20 detail |
Displays the content of the information to be used during L2 encapsulation. |
NOTE: When using the show adjacency interface xx detail command, both the next hop-hop and local MAC addresses are displayed as well as the well-known Ethertype value of the encapsulation protocol (0x0800 for IP). |
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Switch#show cef drop |
Displays packets that are dropped because adjacencies are incomplete or nonexistent. |
Switch#show ip interface vlan10 |
Verifies whether CEF is enabled on an interface. |