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New Member

PortChannel Issue

I am facing an issue, that i connect my laptop with one port of 7609, the port(gi4/47) goes in to Up/Down state continuously due to which my port-channel ports(4/48 & 7/40) goes in err-disabled state and the port-channel goes down. What can be the reason for this

7 REPLIES
Hall of Fame Super Gold

Post the output to the

Post the output to the command "sh interface Gi 4/47".

New Member

Hi Plx findOSR1#show

Hi Plx find

OSR1#show interfaces gigabitEthernet 4/47
GigabitEthernet4/47 is down, line protocol is down (notconnect)
  Hardware is C6k 1000Mb 802.3, address is 001d.45b9.f28e (bia 001d.45b9.f28e)
  Description: Reserved for local PC
  MTU 1500 bytes, BW 100000 Kbit, DLY 10 usec,
     reliability 255/255, txload 0/255, rxload 0/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Auto-duplex, Auto-speed
  input flow-control is off, output flow-control is off
  Clock mode is auto
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output never, output hang never
  Last clearing of "show interface" counters 51w4d
  Input queue: 0/2000/221/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     66193946 packets input, 14862452112 bytes, 0 no buffer
     Received 27417896 broadcasts (162080 multicasts)
     12 runts, 0 giants, 0 throttles
     42 input errors, 19 CRC, 0 frame, 179 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 input packets with dribble condition detected
     40589807 packets output, 5427090316 bytes, 0 underruns
     48 output errors, 0 collisions, 0 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 PAUSE output
     0 output buffer failures, 0 output buffers swapped out
OSR1#

Hall of Fame Super Gold

Let me rephrase my question .

Let me rephrase my question ... Can you kindly plug a client back to Gi 4/47 and, if it's stable enough, wait for about 2 minutes and post the output to the command "sh interface Gi 4/47" and "sh counter interface Gi 4/47"?

New Member

currently it's not possible

currently it's not possible to connect the laptop at Gi4/47 because last time we have faced an outage due to this. So we can't do it without some MW. If you need some further info then plx inform.

Hall of Fame Super Gold

Post the configuration of Gi

Post the configuration of Gi 4/47 interface.

New Member

42 input errors, 19 CRC, 0

42 input errors, 19 CRC, 0 frame, 179 overrun, 0 ignored

40589807 packets output, 5427090316 bytes, 0 underruns

This clearly indicates that there is issue with the tx media such as ur UTP/Fiber cable. 

Issue clear counter gi4/47 and test if these number increment even after that.

regards.

New Member

ensure the port gi4/47 is an

ensure the port gi4/47 is an access port  and not part of any other etherchannel.

post the o/p of sh run int gi4/47 , sh int gi4/47 switchport and sh run int po " x"

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