Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

FIrst Ping drop on Nexus

Hi Experts

I have Cisco Nexus 3000 configured with VPC domain, port channel and vrrp.

Whenever we reboot the switches the traffic dont get through until and unless I issue the ping myself.

Once ping is issued the first packet of ping drops and then success.

After that the traffic starts flowing.

I would like to know are there any known issue similar to that?

How can I solve it? Any comments will be valuable.

I am using Nexus 300o with System version: 5.0(3)U5(1c)

Below are some of the configurations from both switches.

Switch 01

***********

vpc domain 10

  role priority 1000

  system-priority 4000

  peer-keepalive destination 10.81.254.2 source 10.81.254.1 vrf vpc-keepalive-10

  peer-gateway

  auto-recovery

interface port-channel10

  description

  switchport mode trunk

  vpc peer-link

  switchport trunk allowed vlan 162-168,210-238,246-257,500-515,851-852,1253

  spanning-tree port type network

  no negotiate auto

interface port-channel11

  description VPC to F5_LB-01

  switchport mode trunk

  vpc 11

  switchport trunk allowed vlan 162-168,246-254,501-506,852

interface Vlan166

  vrf member ops_sig

  no ip redirects

  ip address x.x.x.x/24

  hsrp 5

    preempt delay minimum 30

    priority 105

    ip x.x.x.x

  no shutdown

  description OpenStream signaling

Switch 02

***********

vpc domain 10

  role priority 2000

  system-priority 4000

  peer-keepalive destination 10.81.254.1 source 10.81.254.2 vrf vpc-keepalive-10

  peer-gateway

  auto-recovery

interface port-channel10

  description Po10 to FDP-R01

  switchport mode trunk

  vpc peer-link

  switchport trunk allowed vlan 162-168,210-238,246-257,500-515,851-852,1253

  spanning-tree port type network

  no negotiate auto

interface port-channel11

  description VPC to F5_LB-01

  switchport mode trunk

  vpc 11

  switchport trunk allowed vlan 162-168,246-254,501-506,852

  no negotiate auto

interface Vlan166

  vrf member ops_sig

  no ip redirects

  ip address x.x.x.x/xx

  hsrp 5

    preempt delay minimum 30

    ip x.x.x.x

  no shutdown

  description OpenStream signaling

Thanks and Regards

Ahmed

Everyone's tags (4)
199
Views
0
Helpful
0
Replies