Recently i have added Second NIC to our servers, the IP Address and Vlans are different for both network,
The problem starts when we pluggin the second NIC the entire server goes down becomes unstable.
Can anyone please help for both NIC's to be up and running without any descripancy.
The issue is probably because you cannot use 2 default-routes on your server or rather if you have 2 default-routes you could see intermittent successful traffic. Solutions are -
1) As Reza said team the NICs together which would mean the 2 NICs would use the same IP/subnet mask
2) If you want to have 2 NICs on 2 separate subnets choose one default-gateway for the server. If you then want traffic to go via the other NIC you need to add static routes to the server pointing to the other NICs default-gateway. An example might help -
Moquery is the command line cousin of Vizore, it's very helpful and efficient sometimes during the troubleshooting. This article aims to provide moquery cheat sheet to the users for some most common seen scenarios.
Here is the checklist before customers/partners contact Cisco TAC:
Firmware Version of APIC and Switch
Download Switch and APIC techsupport logs
Problem description (Symptoms with details)
Business impact (eg, what kind of services...
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