Issue configuring Nexus 6001 for NLB

[Nicolas Rennetaud]

Hi,

I'm trying configure a nexus 6001 version 7.0.5(N1) for NLB.

I've configured the static entry with "ip arp X.X.X.X aaaa.aaaa.aaaa" in vlan interface configuration but cannot pinging from the user network.

When I try to ping the address configured, I have the following output:

Device# ping X.X.X.X
PING 10.227.4.152 (10.227.4.152): 56 data bytes
64 bytes from X.X.X.X: icmp_seq=0 ttl=127 time=1.878 ms
64 bytes from X.X.X.X: icmp_seq=0 ttl=127 time=2.076 ms (DUP!)
64 bytes from X.X.X.X: icmp_seq=1 ttl=127 time=0.983 ms
64 bytes from X.X.X.X: icmp_seq=1 ttl=127 time=1.174 ms (DUP!)
64 bytes from X.X.X.X: icmp_seq=2 ttl=127 time=0.865 ms
64 bytes from X.X.X.X: icmp_seq=2 ttl=127 time=1.185 ms (DUP!)
64 bytes from X.X.X.X: icmp_seq=3 ttl=127 time=0.93 ms
64 bytes from X.X.X.X: icmp_seq=3 ttl=127 time=1.139 ms (DUP!)
64 bytes from X.X.X.X: icmp_seq=4 ttl=127 time=0.95 ms
64 bytes from X.X.X.X: icmp_seq=4 ttl=127 time=1.027 ms (DUP!)

--- 10.227.4.152 ping statistics ---
5 packets transmitted, 5 packets received, +5 duplicates, 0.00% packet loss
round-trip min/avg/max = 0.865/1.22/2.076 ms
Device#

I tried to put some other configuration as layer-2 configuration but commands are refused because not existing.

Can someone help me ?

Thanks in advance.

[Eugene Khabarov]

Here it the answers http://www.cisco.com/c/en/us/support/docs/ip/multicast/116150-configure-Nexus7000-00.html

[Nicolas Rennetaud]

Hi,

Thanks for your answer.

But already tried to follow this configuration guide but without success... when trying to configure:

vlan configuration 10
  layer-2 multicast lookup mac

The layer-2 command seems not exist so I don't know what to do next... I've tried to search if there's another command that could replace but not found.

Any idea ?

Thanks

Regards

[Eugene Khabarov]

please show your "show run | inc feature", I'm not sure, but maybe it is required to enable "feature pim"? Please try.

[Nicolas Rennetaud]

Hi,

Thanks.

Tried to configure but the layer-2 command doesn't work.

Here the output:

sh run | i feature
feature privilege
no feature telnet
feature tacacs+
feature ospf
feature pim
feature udld
feature interface-vlan
feature hsrp
feature lacp
feature vpc
feature lldp
feature fex

Best regards.

[Eugene Khabarov]

Ok. Let's assume general case with NLB. You needed to configure static mac addresses and static arp entry:

mac-address-table static 0100.5e01.0101 vlan X interface ethernet 2/1


mac-address-table static 0100.5e01.0101 vlan X interface ethernet 2/2


interface VlanX

  ip arp 10.227.4.152 0100.5E01.0101

Try this solution.

[Nicolas Rennetaud]

Hi,

I tried to configure the command mac address-table static on my interface port-channel5 on my backbone and it seems to work !

Tried with another server and working fine.

I only have another question, my server is a virtual machine on chassis. So the chassis is connected with a primary link (port-channel) and a backup link (eth). When I try to configure the static entry on the backup link, it replaces the static entry on the port-channel. Do you know if there's any solution for NLB keeps working if the port-channel is down ?

Thanks a lot.

Best regards.

[Mike Saldivar]

Related question - how do you get to the interface/vlan configuration to enter those commands? I log into the fabric interconnect (UCS 6248UP) and cannot figure out how to navigate to interface configuration.