Nexus1000v for VMware Integration with Virtual Connect

This presentation highlights how to configure Nexus1000v with Virtual Connect. The presentation can be downloaded here.

Nexus1000v VSM deployment design for Virtual Connect is the same as general Cisco recommendation. However, two points need to be pointed out related with Virtual Connect environment. (It’d be much better to review presentation first before watching videos below to understand configuration context.)

1) Adding VEM on ESXi host connecting with Virtual Connect

2) Configuring MAC-pinning host port-channel for VEM uplinks

HP Proliant Server with Emulex CAN PXE and FCOE Configuration Without Virtual Connect(Using Cisco B22 FEX module etc)

It’s common that server admins need to set up PXE and FCOE configuration for HP Proliant servers. For HP blade server with Virtual Connect modules, users can configure all PXE and FCOE settings in either OneView or classic Virtual Connect Manager GUI.

However, some customers may need to use other switches other than HP Virtual Connect for HP Proliant server network connectivity. This includes Proliant blade servers using Cisco B22 FEX module or other blade switches as well as Proliant rack servers. Meanwhile, many HP Proliant servers these days are shipped with Emulex CNAs as LOM or FlexLOM.

It can be tricky to set up PXE and FCOE without Virtual Connect profile concept because users need to enter server RBSU and Emulex ROM to configure relevant settings.

This presentation is to help users with server RBSU and Emulex ROM PXE and FCOE configuration. At the end of the presentation, there is also a section of Emulex BFS booting messages where you can see the common booting errors and related causes. This actually will even help you to troubleshoot when you are using Virtual Connect module.

Hope it helps your deployment. The presentation can be downloaded here.

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HP Announce OneView for Infrastructure Management

HP’s new infrastructure management OneView is announced today. This is a very big announcement for HP.

It’s the next-generation HP management software to combine management of HP Proliant blade and rack servers. In near future, it’ll also provide HP storage(3PAR) and networking management.

In version 1.0, here are some key technical facts

  • The management controller will be available to download as virtual appliance format in early Q4 2013
  • The virtual appliance can manage up to 640 servers(or 40 c7000 enclosures)
  • Rackmount Gen8 and Blade Gen8/G7 servers are supported but blade Gen8 will have full features supported while some of OneView features won’t be available on G7 blade servers.  Some features doesn’t apply to rack Gen8 server in this version because rack servers don’t have virtual connect component(which is the key component to enable service mobility).
  • Virtual Connect Flex-10/10D, Flexfabric, Flex-10 are supported. Virtual Connect Fibre channel module will be supported in future release. VC-1/10 module will NOT be supported.
  • c7000 enclosure is supported. Not c3000 enclosure.

You can watch quick product demos and OneView marketing page here. There are 4 good technical demos after you click “Get An HP OneView Demo”.

http://www.hp.com/go/oneview

Also, this is a video link showing how OneView is different than Cisco UCS in the way it operates.

Virtual Connect LACP Long Timeout Option in VC4.01 Release

One of VC 4.01 features is an option to let users to configure LACP timeout to Long Timeout(30sec instead of default short timeout 1 sec). Sometimes data center switches would like their LACP neighbors to use Long Timeout and this feature will meet such requirement. One of the use cases is to help Cisco Nexus customers who wish to perform ISSU. One of ISSU requirements is all LACP timers need to be set as Long Timeout.

Before VC4.01, Nexus customers will see this on Nexus side when connecting with Virtual Connect.

N5K-1# show lldp neigh
Capability codes:
(R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device
(W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other
Device ID Local Intf Hold-time Capability Port ID
ProCurveSwitch2900-24Gmgmt0 120 BR 14
N5K-2 Eth1/1 120 B Eth1/1
N5K-2 Eth1/2 120 B Eth1/2
Enc-FF-VC-1 SERIAL NO:TW201300H8 BAY:1Eth1/3 120 X1
Enc-FF-VC-1 SERIAL NO:TW201300H8 BAY:1Eth1/4 120 X2

N5K-1# show lacp interface e1/3 Interface Ethernet1/3 is up Channel group is 1 port channel is Po1

<snip>

Neighbor: 0x11 MAC Address= 0-24-81-f7-c6-f7 System Identifier=0x1,0-24-81-f7-c6-f7 Port Identifier=0x1,0x11 Operational key=2 LACP_Activity=active LACP_Timeout=short Timeout (1s) Synchronization=IN_SYNC Collecting=true Distributing=true Partner Admin State=(Ac-0:To-1:Ag-0:Sy-0:Co-0:Di-0:De-0:Ex-0) Partner Oper State=(Ac-1:To-1:Ag-1:Sy-1:Co-1:Di-1:De-0:Ex-0) N5K-1#

N5K-1# show lacp issu-impact
For ISSU to Proceed, Check the following:
1. The port-channel member port should be in a steady state.
2. Check if any of the port-channel member has fast timer enabled from the remote peer
.
The following ports are not ISSU ready
Eth1/3 , Eth1/4 ,

With 4.01, VC has the long timeout option now.

image

and this is how Nexus end should look like after VC set his end to do LACP Long Timeout.

N5K-1# show lacp interface e1/3 <snip> Neighbor: 0x11 MAC Address= 0-24-81-f7-c6-f7 System Identifier=0x1,0-24-81-f7-c6-f7 Port Identifier=0x1,0x11 Operational key=2 LACP_Activity=active LACP_Timeout=Long Timeout (30s) Synchronization=IN_SYNC Collecting=true Distributing=true Partner Admin State=(Ac-0:To-1:Ag-0:Sy-0:Co-0:Di-0:De-0:Ex-0) Partner Oper State=(Ac-1:To-0:Ag-1:Sy-1:Co-1:Di-1:De-0:Ex-0)

N5K-1# show lacp issu-impact
For ISSU to Proceed, Check the following:
1. The port-channel member port should be in a steady state.
2. Check if any of the port-channel member has fast timer enabled from the remote peer
.
All the port are ISSU ready


N5K-1#

Please Note:

1. If you still see Nexus show VC neighbor as “Short_Timeout” even after you set VC as Long, try to set VC back to Short and apply and then try to set VC back to Long again and apply to see if it can negotiate successfully.

2. Resetting LACP timer might have short traffic interruption for your application. I lost one ping during LACP timer changes on VC side while other times I didn’t lose any pings when doing the same LACP timer changes.