Hi All ,
I am having an issue with the connectivity between My Nexus 9000 and My old switches ( Cisco 2960,3560 ) .
Scenario is as follows .
1- I have two nexus switches with vPC configured between them and then connected to an ASA-5545x Cluster
2- This ASA layer is responsible for providing Internet to My old network.
3- I have created a trunk between the old switch and Nexus switch to extend the vlans for Internet gateway connectivity .
4- All the ports on cisco old switches which i assign Vlans for end users are able to ping public IPs
5- All those users are able to resolve urls.
6- The only issue is that whenever a user wants to browse they are not able to do so .
7- I have tried all the possible steps even by changing the trunk configs from Nexus as well but the result was same.
8- As soon as I patch those users direct on the Nexus they are able to browse Internet .
I think this is a TCP issue but I am still unable to find the root cause and resolve it , I know this might sound very strange but this is what I have been troubleshooting since 3 days .
Below is My Nexus end Trunk config for Old switch .
interface Ethernet1/32
description ** Trunk With Old-Switch **
switchport
switchport mode trunk
switchport trunk allowed vlan 100,172,180,201
spanning-tree port type network
no shutdown
spanning-tree port type network was just added to check whereas earlier the spanning-tree port type was normal .
I have also tried by making it edge trunk .
Regards
Hassan Shah
