Ip arp-mcast-replies

[duffman667]

Hey everyone.  I was needing some help with an NLB cluster and an HP 3800 L3 core switch running version KA.15.09.0012.  We recently setup a multicast NLB cluster on our server network and we get horrible ping times/dropped connection.  I ran netmon and found that all traffic for the NLB cluster has been hitting every other Server as well.  I sadly found out I couldn't statically add ARP entries but I had read that using IP arp-mcast-replies would fix the issue.  But when I view my ARP table it still shows this:  

172.16.1.60      03bfac-10013c     dynamic

There is no port entry and all traffic is still hitting every server.  Is there an update to where I can statically add an ARP address like you can with a Cisco switch?  Any help and or ideas are appreciated.  If you need more information please let me know.  Thanks.

Matt

P.S. This thread has been moved from Switches, Hubs, Modems (Legacy ITRC forum) to ProCurve / ProVision-Based. -HP Forum Moderator

[Chrisd131313]

Hi Duffman667,

Here is a post from some time back which touches on the issue you are experiencing...

http://h30499.www3.hp.com/t5/ProCurve-ProVision-Based/Static-ARP-entry/td-p/4162889#.U4XBmlcrdGU

In a nutshell I think you need to make sure you have Multicast-IGMP enabled on the WNLB and  IGMP enabled on the switch, then arp-mcast-replies should work, I have not tested this myself so can not verify this but it sounds like a viable option.

HTH