Hi,
I'm trying to create my first vPC on my Nexus5K for my UCS server but one port keeps on getting suspended. I'm using 2 ports on each 5K, E1/1 and E1/2 and port-channel 100 for both interface. Out of these 2 ports, 1 port always gets suspended. If i try to shutdown the working port, the suspended port comes UP and works fine. If i remove the suspended interface out of the port-channel bundle, the interface comes up. i have tried to rebuild the configuration and still doesnt work.
How can i resolve this issue? Thanks in advance.
Po500 - vPC peer link
Po100 - port-channel to my server
Config:
=====
interface Ethernet1/2
switchport mode trunk
channel-group 100 mode active
interface Ethernet1/2
switchport mode trunk
channel-group 100 mode active
interface port-channel100
switchport mode trunk
speed 10000
vpc 100
interface port-channel500
switchport mode trunk
spanning-tree port type network
speed 10000
vpc peer-link
Port-Channel summary
=================
--------------------------------------------------------------------------------
Group Port- Type Protocol Member Ports
Channel
--------------------------------------------------------------------------------
100 Po200(SU) Eth LACP Eth1/1(P) Eth1/2(s)
500 500(SU) Eth LACP Eth1/10(P) Eth1/11(P)
Interface Status:
============
Ethernet1/1 is up
Dedicated Interface
Belongs to Po100
Ethernet1/2 is down (suspended)
Dedicated Interface
Belongs to Po200
VPC Status
==========
N5K-1# show vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 1
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : primary
Number of vPCs configured : 1
Peer Gateway : Enabled
Peer gateway excluded VLANs : -
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po500 up 1-100
vPC status
----------------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
------ ----------- ------ ----------- -------------------------- -----------
100 Po100 up success success 1-100
Logs
=====
2013 Sep 4 04:14:37 N5K-1 %ETHPORT-5-IF_ADMIN_UP: Interface port-channel100 is admin up .
2013 Sep 4 04:14:37 N5K-1 %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel100 is down (No operational members)
N5K-1(config-if)# 2013 Sep 4 04:14:38 N5K-1 %ETHPORT-5-SPEED: Interface Ethernet1/1, operational speed changed to 10 Gbps
2013 Sep 4 04:14:38 N5K-1 %ETHPORT-5-IF_DUPLEX: Interface Ethernet1/1, operational duplex mode changed to Full
2013 Sep 4 04:14:38 N5K-1 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet1/1, operational Receive Flow Control state changed to off
2013 Sep 4 04:14:38 N5K-1 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet1/1, operational Transmit Flow Control state changed to off
2013 Sep 4 04:14:38 N5K-1 %ETHPORT-5-SPEED: Interface port-channel100, operational speed changed to 10 Gbps
2013 Sep 4 04:14:38 N5K-1 %ETHPORT-5-IF_DUPLEX: Interface port-channel100, operational duplex mode changed to Full
2013 Sep 4 04:14:38 N5K-1 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface port-channel100, operational Receive Flow Control state changed to off
2013 Sep 4 04:14:38 N5K-1 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface port-channel100, operational Transmit Flow Control state changed to off
2013 Sep 4 04:14:39 N5K-1 %ETHPORT-5-SPEED: Interface Ethernet1/2, operational speed changed to 10 Gbps
2013 Sep 4 04:14:39 N5K-1 %ETHPORT-5-IF_DUPLEX: Interface Ethernet1/2, operational duplex mode changed to Full
2013 Sep 4 04:14:39 N5K-1 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet1/2, operational Receive Flow Control state changed to off
2013 Sep 4 04:14:39 N5K-1 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet1/2, operational Transmit Flow Control state changed to off
2013 Sep 4 04:14:39 N5K-1 %ETHPORT-5-SPEED: Interface port-channel100, operational speed changed to 10 Gbps
2013 Sep 4 04:14:39 N5K-1 %ETHPORT-5-IF_DUPLEX: Interface port-channel100, operational duplex mode changed to Full
2013 Sep 4 04:14:39 N5K-1 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface port-channel100, operational Receive Flow Control state changed to off
2013 Sep 4 04:14:39 N5K-1 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface port-channel100, operational Transmit Flow Control state changed to off
2013 Sep 4 04:14:42 N5K-1 %ETH_PORT_CHANNEL-5-PORT_SUSPENDED: Ethernet1/2: Ethernet1/2 is suspended
2013 Sep 4 04:14:42 N5K-1 %ETH_PORT_CHANNEL-5-PORT_UP: port-channel100: Ethernet1/1 is up
2013 Sep 4 04:14:42 N5K-1 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel100: first operational port changed from none to Ethernet1/1
2013 Sep 4 04:14:42 N5K-1 %ETHPORT-5-IF_UP: Interface Ethernet1/1 is up in mode trunk
2013 Sep 4 04:14:42 N5K-1 %ETHPORT-5-IF_UP: Interface port-channel100 is up in mode trunk
