one Switch PC not able to ping other switch PC

[alokp33111]

Hi ,

I am working in the customer environment where is 2 SG series switches are connected through the trunk. 

issue is that I am not able to ping those switches' PC.

Thanks,

Alok

[Jitendra Kumar]

both PC,s are the same VLAN??

Thanks,

Jitendra

[alokp33111]

PC,s are in default vlan 1..

[Jitendra Kumar]

share trunk port config both switch.

Thanks,

Jitendra

[alokp33111]

Please find the attached snap both side same config.

[Jitendra Kumar · Accepted solution]

if I am not wrong this is your uplink port config for both switches. If yes:-

Why administrative modes are dynamic auto both sides?? dynamic auto should not be on both sides it should be desirable another side.   

Port is showing VLAN 1 not trunk.

have you got an error message on the switch ??

any error disable massage are there?

only single uplinks are there then ok. if multiple redundant connections there then STP can block this port.

Thanks,

Jitendra

[MHM Cisco World]

from this please do 
switchport mode trunk <- do this first 
then config encapsulation and native.

[MHM Cisco World]

many troubleshot step here 
show interface status <-check if the trunk is connect not err-disable 
show interface trunk  <- check if the VLAN allow native and prune is same in both SW.

show STP <- check is STP is BLK the trunk "block is there is miconfig or there is other interconnect between SW"

[alokp33111]

got it the issue was administrator mode  just change it is working thanks

[MHM Cisco World]

For feature 

[alokp33111]

Thank Sir for help..

[MHM Cisco World]

You are so so welcome