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Manualy add a new vLan to blade server in Cisco UCS 5108

tobias1979
Level 1
Level 1

Hi

I have tried to add a new vLan to my server chassie and then add it manulay to the blad server. The problem is that i can´t connect to the network, do I have to initate it in the fabric switch? Anyone got a tip where to start trubleshooting?

/T                  

1 Accepted Solution

Accepted Solutions

Hello,

You need to SSH into Fabric Interconnect ( FI ) and then change to nxos context

Padma

View solution in original post

13 Replies 13

padramas
Cisco Employee
Cisco Employee

Hello Tobias,

To start with,

1) Are you able to ping the gateway of the device ?

2) If not, we need to trace the MAC address. We can determine the path taken by vnic of server by following command 

show service-profile circuit server x/y  ( where x is chassis number and y is blade slot number )

3) Connect to nxos mode of the FI and check whether mac address is learned on correct VLAN or not

show mac address-table

If not, we need to verify OS NIC VLAN configuration ( whether assigned proper VLAN or not )

4) Verify VLAN configuration on the upstream switch.

Padma

HI

Do I have to add the vLan under appliance to, it seams to be missing there?

Hello Tobias,

Not required unless if you are trying to communicate to a device connected to FI on appliance port.

Providing more information about source / destination would help us here.

What is the OS installed on the blade ?

Chassis and blade number ?

Are you able to ping the gateway ip address for Vlan 102 ?

Padma

HI

The vLAn should be deployed to all blad servers 6 at the moment in 2 chassis. I ám running esxi 4.1 on the blade. I can´t ping the gateway from a vm on the blade.

Tobias

Tobias,

Is the virtual machine NIC configured to use VLAN 102 in ESXi ?

Padma

Hi ,

Make sure that, correct VLANs have been added to vNIC 0f the blades on whicj ESX is installed.

Ram

Vm are rundning vLan 102 and the blade server has vLan 102 on.

On FI, check the mac address of the VM nic is learned on vlan 102 or not.

Padma

The vNIC in UCS has the same MAC adress as the vSwitch in vSphere. How can I see a specific virtual machines mac adress in USC´n?

Hello,

You can check the mac address table by

connect nxos

show mac address-table

Padma

HI

How do I connect to "nxos", is it lika a terminal session to UCS?

.T

Hello,

You need to SSH into Fabric Interconnect ( FI ) and then change to nxos context

Padma

Hi

I found the MAC adress and we found the problem in the router. Thank you Padramas you have been very helpful.

Rgds

Tobias

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