Facing issue on LAN

[k_bhavsar]

HI,

I am facing issue on LAN after configuring "spanninf-tree bpdufilter enable" "switchport fast" "spanning-tree nonegotiate".

I want to know this commands are responsible for the issue or not....

[mfurnival]

Tell us what the issue is and we might have a fighting chance of helping you...

[k_bhavsar]

when i ping some IP addresses on different switches I am getting ping drop on some interval.

[mfurnival]

You really need to give us a lot more information about the problem / symptoms / topology before we can assist.

[k_bhavsar]

when I ping end device in vlan20. I got ping drop. i want to know that above mentioned commands can be reason for ping drop or not?

[cadet alain]

Hi,

if you wan to ping from PC in vlan 10 to PC in vlan 20 or inversely then you need a routing device like a L3 switch or a router doing Router on a stick because 1VLAN = 1 subnet and so you need routing to communicate between different VLANs.

Regards

Alain

Don't forget to rate helpful posts.

[sbhadrav@cisco.com]

Use caution when entering the clear spantree uplinkfast command. This command restores the
port-VLAN costs on all ports to the default minus one (18) and the port cost to the default value (19). If
you have configured per-VLAN load sharing on redundant trunk links, the load-sharing configuration
can be affected by this command
You can disable only spanning tree UplinkFast processing on the switch using the set spantree
uplinkfast disable command. This command.