Re: [c-nsp] OSPF equal cost load balancing

Hmm - Well this is just not wanting to play nicely at all Ive added another 2 links (Now 4 total), all equal cost - Egress load (From ASR920->ME3600) went from Gi0/0/22 doing 950M/sec, Gi0/0/23 doing 5-10Mb/sec, to Gi0/0/20 now taking all the load... So, we have gi0/0/20,21,22,23

Re: [c-nsp] OSPF equal cost load balancing

What if you were to setup four BDIs running OSPF/MPLS across these two physical interfaces. Two BDIs per physical interface. Would that make ECMP work correctly using an ASR920? We're going to be in the same boat soon too.. ASR920's on both sides with OSPF across two physical paths and worried

Re: [c-nsp] OSPF equal cost load balancing

Hi Pshem - No, only L3VPN and "standard" Inet links cheers From: Pshem Kowalczyk Sent: Thursday, 31 August 2017 6:51 AM To: CiscoNSP List; cisco-nsp@puck.nether.net Subject: Re: [c-nsp] OSPF equal cost load balancing Are you running L2VPN

Re: [c-nsp] OSPF equal cost load balancing

AAh - Thank you James! So the ASR920 will not ECMP over 2 links, it requires 4...that would explain the difference between egress/ingress (and why the 920 is not working particularly well!) Yes, this is ECMP, not LAG - So changing the load sharing algorithm can only be done globally (As I

Re: [c-nsp] OSPF equal cost load balancing

Hi Aaron - Apologies, yes, we currently have 2 separate L3 ints of equal cost between the asr920 and me3600 Just relying on ospf to do the load balancing) - This is not working particularly well  sho ip route x.x.x.x will only provide loop of next hop (As we use RRs), so Ive included sh ip

Re: [c-nsp] OSPF equal cost load balancing

Are you running L2VPN traffic across those ECMP links? kind regards Pshem On Wed, 30 Aug 2017 at 16:59 CiscoNSP List wrote: > Hi Everyone, > > > Have an ASR920 connected to an ME3600 with 2 x 1Gb links with same ospf > cost (It was a single 1Gb, but secondary 1Gb

Re: [c-nsp] OSPF equal cost load balancing

I think two layer ECMP links are being used here, both of which are in the IGP. Are you running MPLS over these links too? The ME3600 is able to ECMP over any number of links as far as I know (up to the max, which is 8 or 16) however I think the ASR920 will only ECMP over 4 or 8 links (so not 2

Re: [c-nsp] OSPF equal cost load balancing

Are you doing a 2-port etherchannel between the 920 and 3600 ? Asking since you seem to be asking question about etherchannel load balancing and hashing ...or... Are you doing 2 separate layer 3 subnets between the 920 and 3600 ? asking since your subject heading implies so. (ospf equal cost

Re: [c-nsp] nfSen / nfDump

Nick Cutting wrote: > The main SFlow collection point(s) are 36 port 100g nexus 9236c, so I > think it is based on different chipsets – ASE2 Right, I missed it was a different asic. You should reach out to your SE and ask her/him if there is any way of poking this in hardware, in the same way