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Network Connectivity Issue in CUCM 8.6 over VMware UC210

cristian.munoz
Level 4
Level 4

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.

13 Replies 13

Chris Deren
Hall of Fame
Hall of Fame

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

Chris

Dear Chris

The conectivity is by a switch with cannel port configuration.

For the vSphere conectivity, please see below:

TIA
Cristian

Hi Guys

Any idea?

Anyone has this happened?

TIA

Cristian

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

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.

Could you share this outputs from the switch?

show etherchannel summary

show etherchannel detail

show interface trunk

best regards

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

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

TIA
Cristian

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

Sent from Cisco Technical Support iPad App

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.

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

Chris

But the documentation say to use VLAN.

Thanks for you support.

Cristian

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.

Sent from Cisco Technical Support iPad App

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