[c-nsp] Does NCS behave like Nexus w/regard to vPC+VRRP active/active?

[David Hubbard]

Ah, guess that was a dumb question, I didn’t realize Cisco’s mc-lag was still active-standby; ugh.  Seems like a glaring omission in this platform to not have an active/active layer 2 option.



On 12/15/17, 9:54 AM, "David Hubbard" <dhubbard at dino.hostasaurus.com> wrote:

    Thanks all, yep, discovered no vpc commands lol.  I’ve gone ahead with mc-lag, relevant BD’s and added BVI’s for the router interfaces.  Now I need to deploy a first hop redundancy option.
    
    In an mc-lag solution, do you know if these devices will work similar to HSRP/VRRP in a Nexus+vPC setup where, regardless of a device being the ‘standby’ first hop from a control plane perspective, they’ll still forward on the data plane rather than having to send them across the inter-device link to the active first hop for forwarding?
    
    Thanks!
    
    On 12/15/17, 3:37 AM, "adamv0025 at netconsultings.com" <adamv0025 at netconsultings.com> wrote:
    
        Yup, using proprietary common brain was deemed as not an optimal solution to
        the problem, hence why routers are rather using MC-LAG (multichassis LACP)
        instead.
        
        adam
        
        netconsultings.com
        ::carrier-class solutions for the telecommunications industry::
        
        > -----Original Message-----
        > From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
        > Brian Turnbow
        > Sent: Thursday, December 14, 2017 5:33 PM
        > To: 'David Hubbard'; 'cisco-nsp'
        > Subject: Re: [c-nsp] Does NCS behave like Nexus w/regard to vPC+VRRP
        > active/active?
        > 
        > Hi Dave,
        > 
        > The ncs5501 does not support vpc nor any vss clustering  like
        configuration
        > afaik.
        > 
        > 
        > Brian
        > 
        > > -----Original Message-----
        > > From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf
        > > Of David Hubbard
        > > Sent: giovedì 14 dicembre 2017 18:07
        > > To: cisco-nsp
        > > Subject: [c-nsp] Does NCS behave like Nexus w/regard to vPC+VRRP
        > > active/active?
        > >
        > > Hey all, before I go too far down the configuration path, was curious
        > > if anyone knows off hand if the NCS5500 line (5501SE with IOS XR
        > > 6.2.25) behave like Nexus when you set up vPC + VRRP where data plane
        > > is active/active for forwarding?
        > >
        > > Thanks,
        > >
        > > David
        > >
        > >
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