Unable to Ping / connect some host in VLAN

[shaharshad]

Hi,

I have 3 switches (interconnected like : A--->B---->C). I have created a Vlan 10 on every switch & define SVI on switch C. I can ping SVI from access switch(i.e.Switch A) and host attached to Switch C. But i am unable to ping / access host in VLAN10 on Switch A. 

Line Protocol and admin.. is up. Let me know if you require any specific information 

[paul driver]

Hello

You don't say if you have multiple vlans or the hosts are in different vlans or communication is just vlan 10 

Anyway for switch A/B these should be "host" switches meaning for management purposes they can have a management svi IP address and IP  default-gateway of swItch C ,

Trunk the interfaces between A/B/C and make sure all vlans you need to communicate with are allowed across these trunks.

Lastly on switch C create the SVI 's for all vlans to partcipitate in inter-vlan routing and enable IP routing

If you have done all thie above  then check to see if your host has a software Fw enabled which by default will negate icmp replies

red

paul

[shaharshad]

Thanks Paul & Devils

I am working on Switch A. Actually Switch  B  & C are layer 3 switches  C is layer 2 and has a SVI. There exist a trunk between A to B & to C (B&C do inter VLAN routing and SVI exists on C). What i am feeling there is some issue with port configuration on Switch A. Previously these ports were auto (since we are using voice & data vlans on single). I make it access port . Currently I run  #sh int switchport module command and please find out if you can see any problem in this

Name: Gi3/0/41
Switchport: Enabled
Administrative Mode: static access
Operational Mode: static access
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: native
Negotiation of Trunking: Off
Access Mode VLAN: 10 (VM)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk Native VLAN tagging: enabled
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk associations: none
Administrative private-vlan trunk mappings: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL

Thanking in advance

[shaharshad]

Further to above I also checked from Access Switch (A) i can ping upper switches and also from laptop but can not ping to Laptop from Access Switch. Though I have a mac address on switch shown. 

[shaharshad]

Hi

now I am able to connect to switch A and switchB. But Switch B and C (both layer 3) doesn't have connectivity on vlan 10, otherwise connected.

i have set up interface ip for vlan 10 on both switch B and C but still no luck. Link between both is trunk and set to all vlan on both side. Interesting traffic of other vlan is happening ;)

[devils_advocate]

Can you post the following from all three switches?

Would be best as .txt files and attached to a post.

#show run

#show int trunk

Thanks

[devils_advocate]

Do both hosts have the correct default gateway? i.e the SVI address on switch C?

Do both hosts have the same subnet mask which matches the subnet mask on the SVI?