Re: OT: Nexus deployment with 802.3ad LACP team

From: Rick Mur <rmur_at_ipexpert.com>
Date: Sun, 28 Feb 2010 15:30:49 +0100

I indeed can't imagine that the N2k support the vPC feature yet. You can do teaming on the server though. Teaming on servers is usually just using 1 interface and the second as a backup. The server really has to support balancing, like ESX (not by default as well).

Then again. AFAIK it's not possible to configure a vPC on 2 N2k's.

-- 
Regards,
Rick Mur
CCIE2 #21946 (R&S / Service Provider)
Sr. Support Engineer  IPexpert, Inc.
URL: http://www.IPexpert.com
On 28 feb 2010, at 13:11, Radioactive Frog wrote:
> thanks, let us know how did you go.
> 
> On Sun, Feb 28, 2010 at 5:47 AM, Usama Pervaiz <chaudri_at_gmail.com> wrote:
> 
>> We are using the management vrf for the keepalives. otherwise its the
>> default vrf. We didnt want to get too fancy with the config as we dont
>> need it. Another member on the list replied and said that the 2K's
>> currently do not support this yet. I will have to call Cisco and get
>> more info.
>> 
>> Thank you all for your help!!
>> 
>> Usama
>> 
>> On Sat, Feb 27, 2010 at 7:33 AM, Radioactive Frog <pbhatkoti_at_gmail.com>
>> wrote:
>>> Hi,
>>> 
>>> The config looks okay. I'd add this, just to make sure the right vrf (if
>>> you're using any).
>>> 
>>> vpc domain 1
>>>  peer-keepalive destination 10.0.0.1 source 10.10.0.2 vrf vpc-keepalive
>>> 
>>> Are you issueing show vpc status command from base system i.e. mgmt vdc
>> or
>>> one of the vdc which has peering with another one on a different box?
>>> 
>>> 
>>> use switchto vdc <vdcName> command and then check the vpc status.
>>> 
>>> 
>>> 
>>> 
>>> On Sat, Feb 27, 2010 at 4:27 PM, Usama Pervaiz <chaudri_at_gmail.com>
>> wrote:
>>>> 
>>>> Following is how i configured the vPC:
>>>> 
>>>> 5K-A
>>>> 
>>>> vpc domain 1
>>>> peer-keepalive destination 10.0.0.1
>>>> 
>>>> interface port-channel1
>>>> switchport mode trunk
>>>> vpc peer-link
>>>> spanning-tree port type network
>>>> speed 10000
>>>> 
>>>> interface port-channel10
>>>> switchport access vlan 100
>>>> vpc 10
>>>> speed 1000
>>>> 
>>>> interface Ethernet1/17
>>>> switchport mode trunk
>>>> channel-group 1 mode active
>>>> 
>>>> interface Ethernet1/18
>>>> switchport mode trunk
>>>> channel-group 1 mode active
>>>> 
>>>> int e100/1/10
>>>> switchport access vlan 100
>>>> spanning-tree port type edge
>>>> channel-group 10 mode active
>>>> 
>>>> 
>>>> 
>>>> 
>>>> This is the config on 5K-B:
>>>> 
>>>> vpc domain 1
>>>> peer-keepalive destination 10.0.0.2
>>>> 
>>>> interface port-channel1
>>>> switchport mode trunk
>>>> vpc peer-link
>>>> spanning-tree port type network
>>>> 
>>>> interface port-channel10
>>>> switchport access vlan 100
>>>> vpc 10
>>>> speed 1000
>>>> 
>>>> interface Ethernet1/17
>>>> switchport mode trunk
>>>> channel-group 1 mode active
>>>> 
>>>> 
>>>> interface Ethernet1/18
>>>> switchport mode trunk
>>>> channel-group 1 mode active
>>>> 
>>>> interface Ethernet100/1/10
>>>> switchport access vlan 100
>>>> spanning-tree port type edge
>>>> channel-group 10 mode active
>>>> 
>>>> 
>>>> 
>>>> 
>>>> sh vpc brief
>>>> Legend:
>>>>               (*) - local vPC is down, forwarding via vPC peer-link
>>>> 
>>>> vPC domain id                   : 1
>>>> Peer status                     : peer adjacency formed ok
>>>> vPC keep-alive status           : peer is alive
>>>> Configuration consistency status: success
>>>> vPC role                        : secondary
>>>> 
>>>> vPC Peer-link status
>>>> ---------------------------------------------------------------------
>>>> id   Port   Status Active vlans
>>>> --   ----   ------ --------------------------------------------------
>>>> 1    Po1    up     1,14-15,100
>>>> 
>>>> vPC status
>>>> 
>>>> 
>> ----------------------------------------------------------------------------
>>>> id     Port        Status Consistency Reason                     Active
>>>> vlans
>>>> ------ ----------- ------ ----------- --------------------------
>>>> -----------
>>>> 100    Po100       up     success     success                    100
>>>> 114    Po114       down*  failed      Consistency Check Not      -
>>>>                                     Performed
>>>> 
>>>> 
>>>> I dont understand why the status says down and the consistency says
>>>> failed. Please let me know if i configured something wrong or if i
>>>> need addition steps.
>>>> 
>>>> Thanks,
>>>> Usama
>>>> 
>>>> 
>>>> On Fri, Feb 26, 2010 at 10:47 PM, Radioactive Frog <pbhatkoti_at_gmail.com
>>> 
>>>> wrote:
>>>>> My question is do i even need to configure anything if the servers are
>>>>> doing NIC teaming?
>>>>> ----------------------------------------------------------------
>>>>> ah...
>>>>> the answer is simply "yes", you need to configure 802.13ad on your
>>>>> switch as
>>>>> well where those 2 teamed NIC's are connected. If this is not done
>> then
>>>>> the
>>>>> incoming traffic to server will not load balanced.
>>>>> 
>>>>> Server to Switch traffic flow:
>>>>> --------------------------------------
>>>>> Outgoing from server = Teaming servers ports, if servers are Linux it
>>>>> creates a "BOND0" interface which is logically interface created by
>> the
>>>>> OS
>>>>> when teaming is enabled. The OS sends any traffic originated from (in
>>>>> virtulization environment VM's) OS through the BOND0 interface out to
>> a
>>>>> switch.
>>>>> 
>>>>> same concept applies fomr incoming traffic.
>>>>> 
>>>>> HTH
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> On Sat, Feb 27, 2010 at 2:24 PM, Usama Pervaiz <chaudri_at_gmail.com>
>>>>> wrote:
>>>>>> 
>>>>>> The uplink vPC to the 6509's is working. The VSS consists of 2 6509's
>>>>>> which are multi-chassis portchannel to the 2 5K's (which are using
>>>>>> vPC) My concern is at the host level. If i configure the port-channel
>>>>>> to the servers using LACP the port channel says its down and the port
>>>>>> itself is in Individual mode (I). If i configure it with just this
>>>>>> command (as stated in the quick start guide for vPC)
>>>>>> 
>>>>>> channel-group 10
>>>>>> 
>>>>>> The port-channel shows up but I do not see any increase in throughput
>>>>>> from the server.
>>>>>> 
>>>>>> My question is do i even need to configure anything if the servers
>> are
>>>>>> doing NIC teaming?
>>>>>> 
>>>>>> Thanks for your response.
>>>>>> 
>>>>>> Usama
>>>>>> 
>>>>>> On Fri, Feb 26, 2010 at 10:11 PM, Radioactive Frog
>>>>>> <pbhatkoti_at_gmail.com>
>>>>>> wrote:
>>>>>>> vPC is not supported within the BOX (even it has 2 vdc/vss). You
>> must
>>>>>>> have 2
>>>>>>> physical boxes i.e. 2x6509.
>>>>>>> 
>>>>>>> 
>>>>>>> On Sat, Feb 27, 2010 at 11:08 AM, Usama Pervaiz <chaudri_at_gmail.com
>>> 
>>>>>>> wrote:
>>>>>>>> 
>>>>>>>> Hello all,
>>>>>>>> 
>>>>>>>> We are rolling out a deployment of Nexus 5k's and 2k's with VSS.
>>>>>>>> following is the design that we have chosen. The
>>>>>>>> 
>>>>>>>> 
>>>>>>>>                                                      ___________
>>>>>>>>             N2K1------>N5K1 --------------- |   6509     |
>>>>>>>> Server<                    ||     -----vPC---- |    VSS      |
>>>>>>>> LACP       N2K2------>N5K2 -------------- |___________|
>>>>>>>> 
>>>>>>>> 
>>>>>>>> The N5K1 and N5K2 are using vPC to connect to the 6509's. This
>> link
>>>>>>>> is
>>>>>>>> up and functioning properly.
>>>>>>>> My question is if we are using active/active LACP from the server
>>>>>>>> side
>>>>>>>> NIC's do we have to configure port-channel on the N2K1 and N2K2? I
>>>>>>>> have tried it with and without and in both cases my maximum
>>>>>>>> throughput
>>>>>>>> is just below 1Gbps. I would have though that teaming up the NIC's
>>>>>>>> on
>>>>>>>> the server would give me at least something over a gig of
>> throughput
>>>>>>>> or am I wrong in my assumption.
>>>>>>>> 
>>>>>>>> Also when I specify the mode for the channel-group as active
>>>>>>>> (channel-group 10 mode active) my port-channel status shows as
>> down
>>>>>>>> and my port status is (I). Is LACP not supported on host ports for
>>>>>>>> the
>>>>>>>> N2K's?
>>>>>>>> 
>>>>>>>> If I have confused anyone then I apologize!!
>>>>>>>> 
>>>>>>>> Thanks in advance!
>>>>>>>> Usama
>>>>>>>> 
>>>>>>>> 
>>>>>>>> Blogs and organic groups at http://www.ccie.net
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
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> 
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Received on Sun Feb 28 2010 - 15:30:49 ART

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