Nexus 7K VDC Interface Re-allocation - Proxy Layer 3 Routing

[David Undernehr]

I have a Cisco Nexus 7k with the following modules installed:

Mod  Ports  Module-Type                         Model              Status

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

1    0      Supervisor module-1X                N7K-SUP1           active *

2    0      Supervisor module-1X                N7K-SUP1           ha-standby

3    48     10/100/1000 Mbps Ethernet XL Module N7K-M148GT-11L     ok

6    32     1/10 Gbps Ethernet Module           N7K-F132XP-15      ok

9    48     1000 Mbps Optical Ethernet XL Modul N7K-M148GS-11L     ok

I want to migrate interfaces from my Core VDC to my Data Center VDC. However, when performing this task I will break Proxy Layer3 routing.

vdc_id: 1 vdc_name: CORE-02 interfaces:

        Ethernet3/33          Ethernet3/34          Ethernet3/35         

        Ethernet3/36          Ethernet3/37          Ethernet3/38         

        Ethernet3/39          Ethernet3/40          Ethernet3/41         

        Ethernet3/42          Ethernet3/43          Ethernet3/44         

        Ethernet3/45          Ethernet3/46          Ethernet3/47         

        Ethernet3/48      

        Ethernet6/1           Ethernet6/2           Ethernet6/3          

        Ethernet6/4           Ethernet6/5           Ethernet6/6          

        Ethernet6/7           Ethernet6/8           Ethernet6/9          

        Ethernet6/10          Ethernet6/11          Ethernet6/12         

        Ethernet6/13          Ethernet6/14          Ethernet6/15         

        Ethernet6/16          Ethernet6/21          Ethernet6/22         

        Ethernet6/23          Ethernet6/24          Ethernet6/25         

        Ethernet6/26          Ethernet6/27          Ethernet6/28         

        Ethernet6/29          Ethernet6/30          Ethernet6/31         

        Ethernet6/32         

vdc_id: 3 vdc_name: DC-02 interfaces:

        Ethernet3/1           Ethernet3/2           Ethernet3/3          

        Ethernet3/4           Ethernet3/5           Ethernet3/6          

        Ethernet3/7           Ethernet3/8           Ethernet3/9          

        Ethernet3/10          Ethernet3/11          Ethernet3/12         

        Ethernet3/13          Ethernet3/14          Ethernet3/15         

        Ethernet3/16          Ethernet3/17          Ethernet3/18         

        Ethernet3/19          Ethernet3/20          Ethernet3/21         

        Ethernet3/22          Ethernet3/23          Ethernet3/24         

        Ethernet3/25          Ethernet3/26          Ethernet3/27         

        Ethernet3/28          Ethernet3/29          Ethernet3/30         

        Ethernet3/31          Ethernet3/32         

CORE-02# show hardware proxy layer-3 detail

Global Information:

        F1 Modules:     Count: 1         Slot: 6

        M1 Modules:     Count: 1         Slot: 3

        Replication Rebalance Mode:             Manual

        Number of proxy layer-3 forwarders:     2

        Number of proxy layer-3 replicators:     2

Forwarder Interfaces                     Status     Reason

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

Eth3/33-36                               up         SUCCESS                   

Eth3/37-48                               up         SUCCESS                   

Replicator Interfaces                    #Interface-Vlan   Interface-Vlan

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

Eth3/1-24                                2                 1,36               

Eth3/25-48                               2                 40,75      

Question: How do I perform what seems to be an easy task without an outage in my Core and what steps do I need to take?

Thanks,

David

[David Undernehr]

IEOC.com (Brian McGahan) answered my question first but I also found the Cisco documentation as well.

http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/unicast/configuration/guide/l3_overview.html#wp1127975

You must install one of the N7K-M series modules in the Cisco Nexus 7000 Series chassis to run Layer 3 routing with the N7K-F132-15 module. You must have interfaces from both the M Series and the N7K-F132-15 modules in the same VDC. (See the Cisco Nexus 7000 Series NX-OS Virtual Device Context Configuration Guide, Release 5.x,

for more information about VDCs.)

So in short, I can not migrate interfaces Eth3/25-48 out of VDC Core and place them into my DC VDC as this will remove all M Series (Layer 3) interfaces from my Core.