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Cisco Bug: CSCvv40706 - Red link observed in hybrid display between HX server HXAF220C-M5SX and FI 6248 UP

Last Modified

Aug 19, 2020

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

4.0(4d)A 4.0(4d)C

Description (partial)

Symptom:
Red link observed on hybrid display between server HXAF220C-M5SX with UCS VIC 1457, no affectation observed, traffic was flowing through the link,

`show clock `
16:56:04.597 EDT Thu Jun 18 2020

Ethernet1/2 is up
Dedicated Interface
  Belongs to Po1283
  Hardware: 1000/10000 Ethernet, address: 8c60.4f53.4c69 (bia 8c60.4f53.4c69)
  Description: S: Server, Port-channel 1283
  MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec
  RX
    317249508 unicast packets  2134431 multicast packets  742 broadcast packets   <<<<<<<<<<<<<<<
    319384681 input packets  92210551461 bytes          <<<<<<<<<<<<<<<
    22195419 jumbo packets  0 storm suppression bytes
    0 runts  0 giants  0 CRC  0 no buffer
    0 input error  0 short frame  0 overrun   0 underrun  0 ignored     <<<<<<<<<<<<<<<
    0 watchdog  0 bad etype drop  0 bad proto drop  0 if down drop    <<<<<<<<<<<<<<<
    0 input with dribble  0 input discard
   0 Rx pause
  TX
    336699179 unicast packets  165471952 multicast packets  10443245998 broadcast packets   <<<<<<<<<<<<<<<
    10945417129 output packets  7758055203566 bytes    <<<<<<<<<<<<<<<
    903829243 jumbo packets
    0 output errors  0 collision  0 deferred  0 late collision   <<<<<<<<<<<<<<<
    0 lost carrier  0 no carrier  0 babble 0 output discard   <<<<<<<<<<<<<<<
    0 Tx pause
  10 interface resets

========================================================================

`show clock `
17:17:05.750 EDT Thu Jun 18 2020

Ethernet1/2 is up
Dedicated Interface
  Belongs to Po1283
  Hardware: 1000/10000 Ethernet, address: 8c60.4f53.4c69 (bia 8c60.4f53.4c69)
  Description: S: Server, Port-channel 1283
  MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec
  RX
    317265894 unicast packets  2134551 multicast packets  742 broadcast packets  <<<<<<<<<<<<<<<
    319401187 input packets  92216225258 bytes  <<<<<<<<<<<<<<<<
    22197042 jumbo packets  0 storm suppression bytes
    0 runts  0 giants  0 CRC  0 no buffer
    0 input error  0 short frame  0 overrun   0 underrun  0 ignored  <<<<<<<<<
    0 watchdog  0 bad etype drop  0 bad proto drop  0 if down drop <<<<<<<
    0 input with dribble  0 input discard
    0 Rx pause
  TX
    336725425 unicast packets  165481989 multicast packets  10443921524 broadcast packets   <<<<<<<<<<<<<<<
    10946128938 output packets  7758564573005 bytes    <<<<<<<<<<<<<<<
    903874564 jumbo packets
    0 output errors  0 collision  0 deferred  0 late collision   <<<<<<<<<<<<<<<
    0 lost carrier  0 no carrier  0 babble 0 output discard
    0 Tx pause

`show interface brief`

--------------------------------------------------------------------------------
Ethernet      VLAN    Type Mode   Status  Reason                   Speed     Port
Interface                                                                    Ch #
--------------------------------------------------------------------------------
Eth1/1        1       eth  vntag  up      none                        10G(D) 1283
Eth1/2        1       eth  vntag  up      none                        10G(D) 1283  <-----


Ethernet1/2 is up  <---------------------
 Dedicated Interface 
  Belongs to Po1283
  Hardware: 1000/10000 Ethernet, address: 8c60.4f53.4c69 (bia 8c60.4f53.4c69)
  Description: S: Server, Port-channel 1283
  MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec
  reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA
  Port mode is vntag
  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 2d21h
  Last clearing of "show interface" counters never
  30 seconds input rate 15896 bits/sec, 1987 bytes/sec, 6 packets/sec
  30 seconds output rate 1369032 bits/sec, 171129 bytes/sec, 268 packets/sec
  Load-Interval #2: 5 minute (300 seconds)
    input rate 13.17 Kbps, 6 pps; output rate 3.69 Mbps, 641 pps
  RX
    17592999 unicast packets  227363 multicast packets  410 broadcast packets
    17820772 input packets  5587214058 bytes
    667228 jumbo packets  0 storm suppression bytes
    0 runts  0 giants  0 CRC  0 no buffer
    0 input error  0 short frame  0 overrun   0 underrun  0 ignored
    0 watchdog  0 bad etype drop  0 bad proto drop  0 if down drop
    0 input with dribble  0 input discard
    0 Rx pause
  TX
    13700508 unicast packets  23897701 multicast packets  2008402075 broadcast packets
    2046000284 output packets  1439667821814 bytes
    224259426 jumbo packets
    0 output errors  0 collision  0 deferred  0 late collision
    0 lost carrier  0 no carrier  0 babble 0 output discard
    0 Tx pause
  10 interface resets

Conditions:
Server HXAF220C-M5SX with UCS VIC 1457 adapter running 4.0(4d)C and FI 6248 UP with Firmware 4.0(4d)A
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