Hi all, I have problem with vlan 1 on the Cisco Catalyst 3750 switch.
I created vlan140 on the switch. There is only one port connected to up link. I could ping the ip on vlan140 without droping package, but when I ping to the ip on vlan1, about 10% come back with "Request timed out."
I have checked the interface error on both side of the cable, they are all zero. I tried different ip addresses for vlan1 and even replace the cable, no luck.
Could anybody suggest what else I can try?
Many thanks.
Here is the configuration which I believe is relevant: ========================================== no aaa new-model system mtu routing 1500 ip subnet-zero ip routing ! no file verify auto spanning-tree mode pvst no spanning-tree optimize bpdu transmission spanning-tree extend system-id ! vlan internal allocation policy ascending
interface Vlan1 ip address 10.0.2.247 255.255.252.0 standby 140 ip 10.0.0.117 standby 140 preempt delay minimum 60 ! interface Vlan140 ip address 10.0.140.16 255.255.252.0 standby 141 ip 10.0.140.1 standby 141 preempt delay minimum 60 ! ip default-gateway 10.0.0.1 ip classless ip route 0.0.0.0 0.0.0.0 10.0.0.1 ip http server no ip http secure-server =====================================