We have problems with a vPC on my Nexus 1000v. I have two ESX Servers in a HP c-class enclosure. I use CBS3020 Switches. On my Hardware Switches I can see my Nexus as a CDP Neighbor on every Interface it should be. On the Nexus I am missing the CDP Neighbor for the Interface Eth3/4. The status of the Interface stays in link-up state.
After changing of the Network Adapter everything works fine. After installing the original Adapter the Status is up up as well. So it can't be a Hardware malfunction. We had this problem several time now, after changing the Network Adapter everything works fine. But I don't feel very good with this problem.
Did anybody had similar problems? We use the latest Software releases, so upgrading isn't a solution.
nexus# sh int status
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Port Name Status Vlan Duplex Speed Type
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mgmt0 -- up routed full 1000 --
Eth3/1 -- up trunk full 1000 --
Eth3/3 -- up trunk full 1000 --
Eth3/4 -- link-up trunk full auto --
Eth3/5 -- up trunk full 1000 --
Eth3/6 -- up trunk full 1000 --
Eth3/7 -- up trunk full 1000 --
Eth4/1 -- up trunk full 1000 --
Eth4/3 -- up trunk full 1000 --
Eth4/4 -- up trunk full 1000 --
Eth4/5 -- up trunk full 1000 --
Eth4/6 -- up trunk full 1000 --
Eth4/7 -- up trunk full 1000 --
nexus# sh port-channel summary
Flags: D - Down P - Up in port-channel (members)
I - Individual H - Hot-standby (LACP only)
s - Suspended r - Module-removed
S - Switched R - Routed
U - Up (port-channel)
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Group Port- Type Protocol Member Ports
Channel
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1 Po1(SU) Eth NONE Eth3/1(P) Eth3/7(P)
2 Po5(SU) Eth NONE Eth3/3(P) Eth3/4(D)
3 Po6(SU) Eth NONE Eth3/5(P) Eth3/6(P)
4 Po2(SU) Eth NONE Eth4/1(P) Eth4/7(P)
5 Po7(SU) Eth NONE Eth4/3(P) Eth4/4(P)
6 Po8(SU) Eth NONE Eth4/5(P) Eth4/6(P)
port-profile type ethernet uplink-storage
description uplink-storage
vmware port-group
switchport mode trunk
switchport trunk allowed vlan 562-563
channel-group auto mode on sub-group cdp
no shutdown
system vlan 562-563
state enabled
interface Ethernet3/3
inherit port-profile uplink-storage
interface Ethernet3/4
inherit port-profile uplink-storage
interface port-channel2
inherit port-profile uplink-storage
sub-group cdp
