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Nexus 5k Port channel issue - Physical port (Hot standby in bundle)

Hi guys,

I am having issues with a port channnel connected to the UCS server.Whenever I am putting physical port into portchannel it is going down, the physical port is going down with interface staus saying first - (Link not connected) and then finally (Hot standby in bundle). Portchannel remail down with status (No operational members)

What does this status message means :  Ethernet1/11 is down (Hot standby in bundle)

Below is the configuration:

interface Ethernet1/11

  no cdp enable

  switchport mode trunk

  switchport trunk allowed vlan 317,2511-2514

  spanning-tree port type edge trunk

  no snmp trap link-status

  logging event port link-status

  logging event port trunk-status

  channel-group 101 mode active

interface port-channel101

switchport mode trunk

  vpc 101

  switchport trunk allowed vlan 317,2511-2514

  spanning-tree port type edge trunk

  logging event port link-status

  logging event port trunk-status

ACC14# sh port-channel summ

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)

--------------------------------------------------------------------------------

Group Port-       Type     Protocol  Member Ports

      Channel

--------------------------------------------------------------------------------

101   Po101(SD)   Eth      LACP      Eth1/11(H)

-------------------------------

Below is what I have obeserved :

ACC14(config)# int eth1/11

ACC14(config-if)# no channel-group 101 mode active

ACC14(config-if)# sh int eth1/11

Ethernet1/11 is up

  Hardware: 1000/10000 Ethernet, address: 547f.ee24.4e92 (bia 547f.ee24.4e92)

  MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA

  Port mode is trunk

  full-duplex, 10 Gb/s, media type is 10G

  Beacon is turned off

  Input flow-control is off, output flow-control is off

  Rate mode is dedicated

  Switchport monitor is off

  EtherType is 0x8100

  Last link flapped 00:00:02

  Last clearing of "show interface" counters never

  30 seconds input rate 112 bits/sec, 14 bytes/sec, 0 packets/sec

  30 seconds output rate 232 bits/sec, 29 bytes/sec, 0 packets/sec

  Load-Interval #2: 5 minute (300 seconds)

    input rate 152 bps, 0 pps; output rate 248 bps, 0 pps

  RX

    0 unicast packets  1701 multicast packets  0 broadcast packets

    1701 input packets  368680 bytes

    0 jumbo packets  0 storm suppression bytes

    0 giants  0 input error  0 short frame  0 overrun   0 underrun

    0 watchdog  0 if down drop

    0 input with dribble  0 input discard

    0 Rx pause

  TX

    0 unicast packets  59044 multicast packets  5630 broadcast packets

    64674 output packets  5169139 bytes

    0 jumbo packets

    0 output errors  0 collision  0 deferred  0 late collision

    0 lost carrier  0 no carrier  0 babble

    0 Tx pause

  15 interface resets

ACC14(config-if)# sh int po101

port-channel101 is down (No operational members)

vPC Status: Down, vPC number: 101 [packets forwarded via vPC peer-link]

  Hardware: Port-Channel, address: 547f.ee24.4e92 (bia 547f.ee24.4e92)

  MTU 1500 bytes, BW 100000 Kbit, DLY 10 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA

  Port mode is trunk

  auto-duplex, 10 Gb/s

  Beacon is turned off

  Input flow-control is off, output flow-control is off

  Switchport monitor is off

  EtherType is 0x8100

  No members

  Last clearing of "show interface" counters never

  0 seconds input rate 0 bits/sec, 0 bytes/sec, 0 packets/sec

  0 seconds output rate 0 bits/sec, 0 bytes/sec, 0 packets/sec

  Load-Interval #2: 0 seconds

    input rate 0 bps, 0 pps; output rate 0 bps, 0 pps

  RX

    0 unicast packets  0 multicast packets  0 broadcast packets

    0 input packets  0 bytes

    0 jumbo packets  0 storm suppression bytes

    0 giants  0 input error  0 short frame  0 overrun   0 underrun

    0 watchdog  0 if down drop

    0 input with dribble  0 input discard

    0 Rx pause

  TX

    0 unicast packets  0 multicast packets  0 broadcast packets

    0 output packets  0 bytes

    0 jumbo packets

    0 output errors  0 collision  0 deferred  0 late collision

    0 lost carrier  0 no carrier  0 babble

    0 Tx pause

  0 interface resets

ACC14(config-if)# sh int eth1/11

Ethernet1/11 is down (Link not connected)

  Hardware: 1000/10000 Ethernet, address: 547f.ee24.4e92 (bia 547f.ee24.4e92)

  MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA

  Port mode is trunk

  auto-duplex, 10 Gb/s, media type is 10G

  Beacon is turned off

  Input flow-control is off, output flow-control is off

  Rate mode is dedicated

  Switchport monitor is off

  EtherType is 0x8100

  Last link flapped 00:00:10

  Last clearing of "show interface" counters never

  30 seconds input rate 48 bits/sec, 6 bytes/sec, 0 packets/sec

  30 seconds output rate 8056 bits/sec, 1007 bytes/sec, 8 packets/sec

  Load-Interval #2: 5 minute (300 seconds)

    input rate 288 bps, 0 pps; output rate 2.30 Kbps, 2 pps

  RX

    0 unicast packets  1728 multicast packets  0 broadcast packets

    1728 input packets  374762 bytes

    0 jumbo packets  0 storm suppression bytes

    0 giants  0 input error  0 short frame  0 overrun   0 underrun

    0 watchdog  0 if down drop

    0 input with dribble  0 input discard

    0 Rx pause

  TX

    0 unicast packets  59637 multicast packets  5685 broadcast packets

    65322 output packets  5222148 bytes

    0 jumbo packets

    0 output errors  0 collision  0 deferred  0 late collision

    0 lost carrier  0 no carrier  0 babble

    0 Tx pause

  15 interface resets

ACC14(config-if)# sh int po101

port-channel101 is down (No operational members)

vPC Status: Down, vPC number: 101 [packets forwarded via vPC peer-link]

  Hardware: Port-Channel, address: 547f.ee24.4e92 (bia 547f.ee24.4e92)

  MTU 1500 bytes, BW 100000 Kbit, DLY 10 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA

  Port mode is trunk

  auto-duplex, 10 Gb/s

  Beacon is turned off

  Input flow-control is off, output flow-control is off

  Switchport monitor is off

  EtherType is 0x8100

  Members in this channel: Eth1/11

  Last clearing of "show interface" counters never

  30 seconds input rate 2192 bits/sec, 274 bytes/sec, 0 packets/sec

  30 seconds output rate 7296 bits/sec, 912 bytes/sec, 3 packets/sec

  Load-Interval #2: 5 minute (300 seconds)

    input rate 216 bps, 0 pps; output rate 2.38 Kbps, 2 pps

  RX

    0 unicast packets  450 multicast packets  0 broadcast packets

    450 input packets  98735 bytes

    0 jumbo packets  0 storm suppression bytes

    0 giants  0 input error  0 short frame  0 overrun   0 underrun

    0 watchdog  0 if down drop

    0 input with dribble  0 input discard

    0 Rx pause

  TX

    0 unicast packets  980 multicast packets  12 broadcast packets

    992 output packets  143742 bytes

    0 jumbo packets

    0 output errors  0 collision  0 deferred  0 late collision

    0 lost carrier  0 no carrier  0 babble

    0 Tx pause

  0 interface resets

ACC14(config-if)# sh lacp counters interface po101

ACC14(config-if)# int eth1/11

ACC14(config-if)# channel-group 101 mode active

ACC14(config-if)# sh lacp counters interface po101

                    LACPDUs         Marker      Marker Response    LACPDUs

Port              Sent   Recv     Sent   Recv     Sent   Recv      Pkts Err

---------------------------------------------------------------------

port-channel101

Ethernet1/11       261    599      0      0        0      0        0     

ACC14(config-if)# sh lacp counters interface po101

                    LACPDUs         Marker      Marker Response    LACPDUs

Port              Sent   Recv     Sent   Recv     Sent   Recv      Pkts Err

---------------------------------------------------------------------

port-channel101

Ethernet1/11       261    600      0      0        0      0        0     

ACC14(config-if)# sh lacp counters interface po101

                    LACPDUs         Marker      Marker Response    LACPDUs

Port              Sent   Recv     Sent   Recv     Sent   Recv      Pkts Err

---------------------------------------------------------------------

port-channel101

Ethernet1/11       261    603      0      0        0      0        0     

ACC14(config-if)#

ACC14(config-if)#

ACC14(config-if)# sh lacp counters interface po101

                    LACPDUs         Marker      Marker Response    LACPDUs

Port              Sent   Recv     Sent   Recv     Sent   Recv      Pkts Err

---------------------------------------------------------------------

port-channel101

Ethernet1/11       261    605      0      0        0      0        0     

ACC14(config-if)#

ACC14(config-if)# sh lacp counters interface po101

                    LACPDUs         Marker      Marker Response    LACPDUs

Port              Sent   Recv     Sent   Recv     Sent   Recv      Pkts Err

---------------------------------------------------------------------

port-channel101

Ethernet1/11       262    610      0      0        0      0        0     

ACC14(config-if)#

ACC14(config-if)#

Now no more LACP packets are sent or received

ACC14(config-if)#

ACC14(config-if)# sh int po101

port-channel101 is down (No operational members)

vPC Status: Down, vPC number: 101 [packets forwarded via vPC peer-link]

  Hardware: Port-Channel, address: 547f.ee24.4e92 (bia 547f.ee24.4e92)

  MTU 1500 bytes, BW 100000 Kbit, DLY 10 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA

  Port mode is trunk

  auto-duplex, 10 Gb/s

  Beacon is turned off

  Input flow-control is off, output flow-control is off

  Switchport monitor is off

  EtherType is 0x8100

  Members in this channel: Eth1/11

  Last clearing of "show interface" counters never

  30 seconds input rate 248 bits/sec, 31 bytes/sec, 0 packets/sec

  30 seconds output rate 128 bits/sec, 16 bytes/sec, 0 packets/sec

  Load-Interval #2: 5 minute (300 seconds)

    input rate 96 bps, 0 pps; output rate 1.66 Kbps, 2 pps

  RX

    0 unicast packets  471 multicast packets  0 broadcast packets

    471 input packets  101618 bytes

    0 jumbo packets  0 storm suppression bytes

    0 giants  0 input error  0 short frame  0 overrun   0 underrun

    0 watchdog  0 if down drop

    0 input with dribble  0 input discard

    0 Rx pause

  TX

    0 unicast packets  988 multicast packets  12 broadcast packets

    1000 output packets  144925 bytes

    0 jumbo packets

    0 output errors  0 collision  0 deferred  0 late collision

    0 lost carrier  0 no carrier  0 babble

    0 Tx pause

  0 interface resets

ACC14(config-if)# sh int eth1/11

Ethernet1/11 is down (Hot standby in bundle)

  Hardware: 1000/10000 Ethernet, address: 547f.ee24.4e92 (bia 547f.ee24.4e92)

  MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA

  Port mode is trunk

  auto-duplex, 10 Gb/s, media type is 10G

  Beacon is turned off

  Input flow-control is off, output flow-control is off

  Rate mode is dedicated

  Switchport monitor is off

  EtherType is 0x8100

  Last link flapped 00:01:03

  Last clearing of "show interface" counters never

  30 seconds input rate 160 bits/sec, 20 bytes/sec, 0 packets/sec

  30 seconds output rate 176 bits/sec, 22 bytes/sec, 0 packets/sec

  Load-Interval #2: 5 minute (300 seconds)

    input rate 56 bps, 0 pps; output rate 1.58 Kbps, 2 pps

  RX

    0 unicast packets  1755 multicast packets  0 broadcast packets

    1755 input packets  378413 bytes

    0 jumbo packets  0 storm suppression bytes

    0 giants  0 input error  0 short frame  0 overrun   0 underrun

    0 watchdog  0 if down drop

    0 input with dribble  0 input discard

    0 Rx pause

  TX

    0 unicast packets  59651 multicast packets  5685 broadcast packets

    65336 output packets  5224084 bytes

    0 jumbo packets

    0 output errors  0 collision  0 deferred  0 late collision

    0 lost carrier  0 no carrier  0 babble

    0 Tx pause

  15 interface resets

And just to let u know This po101 is a part of vPC, between 2 N5k. Other Switch's N5k port channel is up.

Thanks in advance...

HTH

Sandeep Rawat

Message was edited by: Sandeep Rawat

Everyone's tags (6)
1 REPLY 1
Beginner

Nexus 5k Port channel issue - Physical port (Hot standby in bund

Hmmm.. Somebody pluged the cable going out of Eth1/11 to a wrong server, thus we were gettin status as Hot standby in bundle and not able to add the eth1/11 to port channel. Port-channel, port, and vpc came up after cable was placed correctly to right server.

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