Re: HSRP in Nexus switch

Hi,

please find the diagram, we too many servers that's why curious about the
link capacity.

*Primary
Site
DR Site*

[N5kSW2] <=Vpc peer link=>[N5KSW1]----------------- L2 MPLS
VPLS------------------[N5kDSW1] <=Vpc peer link=>[N5KDRSW2]

Trunk link

[V-Block]
[V-Block]

On Thu, Feb 2, 2012 at 5:08 PM, George J. Sanchez <marco207p_at_gmail.com>wrote:

> It is hard to follow the exact request and answer in this email. It
> really depends on the setup of the nexus 5ks. If you are using vPC's the
> nexus switches will not forward a layer2 packet destined for the FHRP
> gateway if the packet originates from a downstream host on a vPC link.
> HSRP in the Nexus switches was tweaked so that the standby HSRP switch
> will forward the packet, although the packet was sent to the Mac address of
> the active HSRP switch. This however depends on which side the packet
> comes into the 5ks at if you are using vPC spanning tree towards your vPC
> downstream switch is turned off and all your downstream ports forward
> traffic.
>
> I would have to see a diagram of what Imran was talking about to really
> see if the scenario would work. Do your 5ks have the routing module? Are
> your 5ks your distribution block, or do you have a upstream layer3.
>
> Regards,
> Joe Sanchez
>
> On Feb 1, 2012, at 7:23 AM, Carlos G Mendioroz <tron_at_huapi.ba.ar> wrote:
>
> > Joe,
> > what do you mean by "forward the traffic" ?
> > Will it work any different than with any other frame whose destination
> is in the CAM ? Do you mean it will L3 process the packet ?
> >
> > -Carlos
> >
> > George J. Sanchez @ 31/01/2012 13:57 -0300 dixit:
> >> The Nexus class switch HSRP protocol is different, the nexus standby
> and active states will respond to and forward traffic. The standby switch
> understands the packet is destined for the Mac address of the hsrp VIP and
> will forward the traffic.
> >>
> >> Regards,
> >> Joe Sanchez
> >>
> >> On Jan 31, 2012, at 9:21 AM, Radioactive Frog<pbhatkoti_at_gmail.com>
> wrote:
> >>
> >>> As ryan said - GLBP not an option, however u can go for odd and even
> vlan
> >>> with HSRP. Not true load balancing but it works in most of production
> >>> environment.
> >>>
> >>>
> >>> On Tue, Jan 31, 2012 at 7:52 AM, imran ali<s.imranali1_at_gmail.com>
> wrote:
> >>>
> >>>> Hi,
> >>>>
> >>>> Thanks Ryan,
> >>>> yes i want to configure SVI's (gateway for servers) , can it work on
> >>>> different domains e.g we have domain 1 in primary site and domain 2 in
> >>>> secondary site ,
> >>>>
> >>>>
> >>>> *Primary
> >>>> Site
> >>>> Secondary Site*
> >>>>
> >>>> [N5kSW2]<=Vpc peer link=>[N5KSW1]----------------- L2
> >>>> VPLS------------------[N5kDRSW1]<=Vpc peer link=>[N5KDRSW2]
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> (v-block)
> >>>> (v-block)
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> On Tue, Jan 31, 2012 at 12:28 AM, Ryan West<rwest_at_zyedge.com> wrote:
> >>>>
> >>>>> On Mon, Jan 30, 2012 at 14:44:24, imran ali wrote:
> >>>>>> Subject: HSRP in Nexus switch
> >>>>>>
> >>>>>> Hi,
> >>>>>>
> >>>>>> We need to configure HSRP in 4 x nexus 5k (2 secondaries and 2
> >>>>>> primary switches), just i need your opinion guys it is possible ?
> >>>>>>
> >>>>>>
> >>>>>
> >>>>> If you're talking about different SVI's, then you could have 4 nexi.
> The
> >>>>> 5k does not support GLBP, so I think you're stuck with an active and
> >>>>> standby router.
> >>>>>
> >>>>>
> >>>>>
> >>>>
> http://www.cisco.com/en/US/products/ps9670/products_installation_and_configuration_guides_list.html
> >>>>>
> >>>>> Unicast routing guide should have what you need.
> >>>>>
> >>>>> -ryan
> >>>>
> >>>>
> >>>> Blogs and organic groups at http://www.ccie.net
> >>>>
> >>>>
> _______________________________________________________________________
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> >>
> >>
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> >>
> >> _______________________________________________________________________
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> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >
> > --
> > Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina

Blogs and organic groups at http://www.ccie.net
Received on Fri Feb 03 2012 - 03:01:47 ART