Network Connectivity Issue in CUCM 8.6 over VMware UC210

[cristian.munoz]

Hi

This is a new installation and I have a network connectivity issue, in my CUCM 8.6 over VMware VSphere 5 UC210. In the vSphere client I have connectivity to default gateway and to all networks. But, in my CUCM , using the CLI, I can't ping to or from the CUCM.

The eth0 have the link detected yes and the status is up.

Any idea?

TIA
Cristian.

[Chris Deren]

Is the proper vSwitch assigned to the virtual machine?  Does that vSwitch include the proper NICs?

Chris

[cristian.munoz]

Dear Chris

The conectivity is by a switch with cannel port configuration.

For the vSphere conectivity, please see below:

TIA
Cristian

[cristian.munoz]

Hi Guys

Any idea?

Anyone has this happened?

TIA

Cristian

[Chris Deren]

So, you can get to ESXi, but not the CUCM?

What if you remove the VLAN from the vSwitch?

Can you post "show network eth0" from CUCM CLI?

Chris

[cristian.munoz]

Dear Chris

1.- you can get to ESXi, but not the CUCM?

Yes, right.

2.- What if you remove the VLAN from the vSwitch?

Set Vlan ID none, I loss the conection to IP 10.199.0.6 . Set Vlan ID 1, I loss the conection to IP 10.199.0.6. Set Vlan ID 4095, I have connection.

This is the config in the switch.

Port Channel

interface Port-channel3

description Port-Channel UCS

switchport trunk encapsulation dot1q

switchport trunk allowed vlan 1

switchport mode trunk

!

interface GigabitEthernet2/0/1

description Conexion UCS 1

switchport trunk encapsulation dot1q

switchport trunk allowed vlan 1

switchport mode trunk

channel-group 3 mode on

spanning-tree portfast trunk

!        

interface GigabitEthernet2/0/2

description Conexion UCS 1

switchport trunk encapsulation dot1q

switchport trunk allowed vlan 1

switchport mode trunk

channel-group 3 mode on

spanning-tree portfast trunk Port Channel

3.- Can you post "show network eth0" from CUCM CLI?

TIA
Cristian.

[Arturo Alejandro Mendoza Rodriguez]

Could you share this outputs from the switch?

show etherchannel summary

show etherchannel detail

show interface trunk

best regards

[cristian.munoz]

Dear Arturo

Datacenter#show etherchannel summary

Flags:  D - down        P - in port-channel

        I - stand-alone s - suspended

        H - Hot-standby (LACP only)

        R - Layer3      S - Layer2

        U - in use      f - failed to allocate aggregator

        u - unsuitable for bundling

        w - waiting to be aggregated

        d - default port

Number of channel-groups in use: 1

Number of aggregators:           1

Group  Port-channel  Protocol    Ports

------+-------------+-----------+-----------------------------------------------

3      Po3(SU)          -        Gi2/0/1(s)  Gi2/0/2(P) 

Datacenter#show etherchannel detail

                Channel-group listing:

                ----------------------

Group: 3

----------

Group state = L2

Ports: 2   Maxports = 8

Port-channels: 1 Max Port-channels = 1

Protocol:    -

                Ports in the group:

                -------------------

Port: Gi2/0/1

------------

Port state    = Up Cnt-bndl Suspend Not-in-Bndl

Channel group = 3           Mode = On/FEC          Gcchange = -

Port-channel  = null        GC   =   -             Pseudo port-channel = Po3

Port index    = 0           Load = 0x00            Protocol =    -

Age of the port in the current state: 08d:01h:56m:20s

Probable reason: trunk mode of Gi2/0/1 is dynamic, Gi2/0/2 is trunk

Port: Gi2/0/2

------------

Port state    = Up Mstr In-Bndl

Channel group = 3           Mode = On/FEC          Gcchange = -

Port-channel  = Po3         GC   =   -             Pseudo port-channel = Po3

Port index    = 0           Load = 0x00            Protocol =    -

Age of the port in the current state: 06d:21h:36m:37s

                 Port-channels in the group:

                ---------------------------

Port-channel: Po3

------------

Age of the Port-channel   = 49d:17h:02m:47s

Logical slot/port   = 10/3          Number of ports = 1

GC                  = 0x00000000      HotStandBy port = null

Port state          = Port-channel Ag-Inuse

Protocol            =    -

Ports in the Port-channel: 

Index   Load   Port     EC state        No of bits

------+------+------+------------------+-----------

  0     00     Gi2/0/2  On/FEC             0

Time since last port bundled:    06d:21h:36m:47s    Gi2/0/2

Time since last port Un-bundled: 06d:21h:54m:42s    Gi2/0/2

Datacenter#

Datacenter#show interface trunk

Port        Mode         Encapsulation  Status        Native vlan

Po3         on           802.1q         trunking      1

Port        Vlans allowed on trunk

Po3         1

Port        Vlans allowed and active in management domain

Po3         1

Port        Vlans in spanning tree forwarding state and not pruned

Po3         1

Datacenter#

TIA

Cristian

[cristian.munoz]

and in the CUCM , but I can´t to reach the default gateway.

TIA
Cristian

[J. S. Black]

Wild guess, but have you tried updating VMWare Tools? There might be something funky with the virtual network interface.

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[cristian.munoz]

Dear All

I solved the problem. No vlan in the switch and in the VMWare.

interface GigabitEthernet2/0/1

description Conexion UCS 1

switchport trunk encapsulation dot1q

switchport mode trunk

channel-group 3 mode on

Regards,

Cristian.

[Chris Deren]

Right, I never use any VLANs in ESXi as per my inital post and it has always worked well.

Chris

[cristian.munoz]

But the documentation say to use VLAN.

Thanks for you support.

Cristian

[allan.thomas]

Hi,

Have you looked at the switch logs for any errors? I had a customer deployment using C210s and found that one of the port-channel ports was in the (s) suspend state, this was due to flow-control enabled on the interface, this was evident from the logs.

Regards
Allan.

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