Weired issue odd IP's can ping the VIP and even can't!

[Hidayat Khan]

Hello experts!

we have two nexus 9k core, attached to the HP Blade v7000 chasis and VPC configured. All Vlans are HSRP are configured. VPC is configured successfully. But the weird this is that source IP address 10.1.2.3 can ping the dest VIP (on the loadblanacer) but 10.1.2.4 can't ie all odd IP's can ping the vip and even IP's can't ping and this is happening in all other Vlans. No firewall no security applience ... windows firewalls are turned off, no ACL's on the swtiches. If I shut down the interface on nexus 1 then all IP's can ping the VIP, as soon as I unshut the interface then .4 stops pinging, and if I shutdown the interface on nexus 2 then all IP's can ping. 10 gig links are connected to Flex fabric card and vpc port channel is up. Any thoughts or help ?

                               Nexus 1                                                                                                                        Nexus 2

[Reza Sharifi]

Hi,

Is there a connection between Nexus1 and 2 for VPC peer link?

Can you post sh run and sh spann from both swithes?

HTH

[Hidayat Khan]

Of course the VPC peer link and keep alives are up and all vpc's links are up and showing success

no port is being blocked by spanning tree

Had a case logged with Cisco tac and they couldn't find any thing weird on the nexus switch

[paul driver]

Hello

Following on from Reza, Can you also  post HRSP statistics and LB state.

Please review this also regards vpc gateway feature - here 

res

Paul

[Hidayat Khan]

Nexus 1

show hsrp active brief
                     P indicates configured to preempt.
                     |
Interface   Grp Prio P State    Active addr      Standby addr     Group addr
Vlan99      1   120  P Active   local            10.104.0.3       10.104.0.1      (conf)
Vlan160     5   120  P Active   local            10.104.5.3       10.104.5.1      (conf)
Vlan200     6   120  P Active   local            10.104.6.3       10.104.6.1      (conf)
Vlan210     7   120  P Active   local            10.104.7.3       10.104.7.1      (conf)
Vlan310     9   120  P Active   local            10.104.9.3       10.104.9.1      (conf)
Vlan350     11  120  P Active   local            10.104.11.3      10.104.11.1     (conf)
Vlan450     13  120  P Active   local            10.104.13.3      10.104.13.1     (conf)
Vlan700     14  120  P Active   local            10.104.14.6      10.104.14.4     (conf)
Vlan750     15  120  P Active   local            10.104.15.3      10.104.15.1     (conf)

=======================

Nexus 2

show hsrp active brief
                     P indicates configured to preempt.
                     |
Interface   Grp Prio P State    Active addr      Standby addr     Group addr
Vlan100     3   120  P Active   local            10.104.2.2       10.104.2.1
  (conf)
Vlan150     4   120  P Active   local            10.104.4.2       10.104.4.1
  (conf)
Vlan199     2   120  P Active   local            10.104.1.2       10.104.1.1
  (conf)
Vlan300     8   120  P Active   local            10.104.8.2       10.104.8.1
  (conf)
Vlan320     10  120  P Active   local            10.104.10.2      10.104.10.1
  (conf)
Vlan400     12  120  P Active   local            10.104.12.2      10.104.12.1
  (conf)
Vlan760     16  120  P Active   local            10.104.16.2      10.104.16.1

[Hidayat Khan]

Issue resolved. Peer gateway feature wasn't enabled. After enabling this feature all working. Thanks for your help.

Regards

H

[paul driver]

Hello

Glad to hear that

Please close the as resolved and rate them if they have been helpful

res

Paul