Layer 2 Dynamic Switchports
Configure all inter-switch links on SW2, SW3, and SW4 to be in dynamic auto state and configure all inter-switch links on SW1 to be in dynamic desirable state.
SW1: interface range FastEthernet0/13 - 21 switchport mode dynamic desirable SW2: interface range FastEthernet0/13 - 21 switchport mode dynamic auto SW3: interface range FastEthernet0/13 - 21 switchport mode dynamic auto SW4: interface range FastEthernet0/13 - 21 switchport mode dynamic auto
Verification:Using the CAM table verify that all layer 2 traffic between devices in the same VLAN, but not attached to the same switch, is transiting SW1.
R4#ping 155.1.146.6 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 155.1.146.6, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms R4#sh arp Protocol Address Age (min) Hardware Addr Type Interface Internet 155.1.146.1 85 0025.84e8.6381 ARPA FastEthernet1/1 Internet 155.1.146.4 - 001b.2ad6.f9d2 ARPA FastEthernet1/1 Internet 155.1.146.6 0 0007.0e45.7f01 ARPA FastEthernet1/1 Internet 204.12.1.4 - 001b.2ad6.f9d1 ARPA FastEthernet1/0 Internet 204.12.1.254 0 001b.2ae2.c9c1 ARPA FastEthernet1/0
SW2#sh mac addr dynamic address 0007.0e45.7f01 Mac Address Table ------------------------------------------- Vlan Mac Address Type Ports ---- ----------- -------- ----- 1 0007.0e45.7f01 DYNAMIC Fa0/6 146 0007.0e45.7f01 DYNAMIC Fa0/6 Total Mac Addresses for this criterion: 2
Categories: IT, Networking, Switching