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Nexus 1000v unable to set 10G speeds from Nexus 4005

mmendonca
Level 1
Level 1

Hello,

Have installed 2 Cisco Nexus 4000 i/o modules in IBM H Blade Center.  Each 4k has 6 10G uplink ports and 14 Virtual Ethernet ports facing the hypervisor 1 for each blade.  (Uplink ports connect to upstream NX5K)

 

Eth1/1 ESXTest1 up trunk full 1000 10g

Eth1/2 ESXTest2 up trunk full 1000 10g

Eth1/3 -- down trunk auto auto 10g

Eth1/4 -- down trunk auto auto 10g

Eth1/5 -- down trunk auto auto 10g

Eth1/6 -- down trunk auto auto 10g

Eth1/7 -- down trunk auto auto 10g

Eth1/8 -- down trunk auto auto 10g

Eth1/9 -- down trunk auto auto 10g

Eth1/10 -- down trunk auto auto 10g

Eth1/11 -- down trunk auto auto 10g

Eth1/12 -- down trunk auto auto 10g

Eth1/13 -- down trunk auto auto 10g

Eth1/14 -- down trunk auto auto 10g

Eth1/15 drnx5k1pod2 up trunk full 10G 10g

Eth1/16 drnx5k1pod2 up trunk full 10G 10g

Eth1/17 drnx5k1pod2 up trunk full 10G 10g

Eth1/18 drnx5k2pod2 up trunk full 10G 10g

Eth1/19 drnx5k2pod2 up trunk full 10G 10g

Eth1/20 drnx5k2pod2 up trunk full 10G 10g

In this example there's 2 ESXi blades in slots 1 and 2.

Problem is this I'm not seeing the 10G speeds on eth1-2.  I've tried everything to get them to link at 10G but it's not happening.  The Blades are running ESXi4.1.  Nexus 1000v version is 4.2(1)SV1(4a).

Here's what the ports look like from the 1000v:

drnx1kbc3# sh cdp nei

Capability Codes: R - Router, T - Trans-Bridge, B - Source-Route-Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater,
                  V - VoIP-Phone, D - Remotely-Managed-Device,
                  s - Supports-STP-Dispute


Device-ID             Local Intrfce Hldtme Capability  Platform      Port ID

drnx4k2bc3(JAF1441CMPH)Eth3/3        155    S I s     N4K-4005I-XPX Eth1/1     

drnx4k1bc3(JAF1441CMNR)Eth3/4        177    S I s     N4K-4005I-XPX Eth1/1     

drnx4k2bc3(JAF1441CMPH)Eth4/3        150    S I s     N4K-4005I-XPX Eth1/2     

drnx4k1bc3(JAF1441CMNR)Eth4/4        127    S I s     N4K-4005I-XPX Eth1/2     

drnx1kbc3# sh int status


--------------------------------------------------------------------------------
Port           Name               Status   Vlan      Duplex  Speed   Type
--------------------------------------------------------------------------------
mgmt0          --                 up       routed    full    1000    --        
Eth3/3         --                 up       trunk     full    1000    --        
Eth3/4         --                 up       trunk     full    1000    --        
Eth4/3         --                 up       trunk     full    1000    --        
Eth4/4         --                 up       trunk     full    1000    --        

I've been told that the mezzanine card in the Blade Center may be limiting the speed of these links.  Has anyone else seen this?  Is this a limitation of vSphere ESXi 4.x? 

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