it ended up being a Port channel issue. the router needed mode on rather than mode active. IPv4 was able to work without the port channel working where as IPv6 was seeing a loop. Fixed the port channel issue and everything worked.
scott On Mon, Oct 31, 2016 at 8:51 AM, John Kougoulos <john.kougou...@gmail.com> wrote: > > Hi, > > On Wed, Oct 26, 2016 at 9:06 PM, Scott Voll <svoll.v...@gmail.com> wrote: > >> So I have a 2951 setup with a Port-channel to a set of L3 Nexus 5548's on >> a >> VPC. >> >> > Well, I don't know specifically about IPv6, but in general, connectivity > between a router and nexus using vPC is not recommended, but the result is > also very platform specific. > The preferred way if I remember correctly is to have 2 separate l3 links > and use eg OSPF instead of etherchannel for load balancing & redundancy. > You may read more here: https://www.cisco.com/en/US/ > docs/switches/datacenter/nexus5000/sw/mkt_ops_guides/ > 513_n1_1/n5k_L3_w_vpc_5500platform.pdf. > Maybe IPv6 is a bit more problematic than IPv4 because of the use of > multicast. > > Kind regards, > John > > > > _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/