Just a few thoughts, try turning off ip.fastpath.enable. (Verify you understand what that is doing before making any changes) I have seen Nexus drop traffic as it traversed the vPC when fastpath enabled was on due to the unexpected source. I do not recall the exact conditions when that occurred.
Also, probably not the case, but check your MTU as adding vlan tagging will add 4 bytes to your headers.
interface xxxx description xxx-e0a switchport block unicast switchport block multicast switchport mode trunk switchport trunk allowed vlan xxxx spanning-tree port type edge trunk channel-group xxx mode active
From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Bob McKim Sent: Tuesday, November 25, 2014 11:18 AM To: Toasters Subject: Need Working Nexus 7000 Config for cDOT - 2 scenarios
Hi toasters, I'm looking for a working Nexus 7000 config for the following 2 scenarios -
Single mode 10g ifgrp (2 interfaces) with 2 vlans 2 switch vPC for a two interface 10g ifgrp with 2 vlans
If we bring the single mode ifgrp (e0b and e0d) up with no vlan tagging, it works fine for each sub-net. As soon as we add vlan tagging on cluster nodes, we can't ping the gateways. Require the vlan tagging to support our failover groups.
This is what we tried on the Cisco for the single mode with 2 vlans - no dice.
config t interface Ethernet1/14 description <<xxx>> switchport mode trunk switchport trunk native vlan 26 switchport trunk allowed vlan 26, 28 no shutdown
Thanks in advance,
Bob McKim Senior IT Specialist IBM Global Technology Services NetApp Certified Professional
Although no hardware was injured in the creation of this note, a few billion electrons and photons were utilized against their will.