06-21-2009 10:43 PM - edited 03-06-2019 06:22 AM
Hi,
Am getting input errors in Cisco switch 6509 and is connected to another swicth 6513.When i tried to ping each other , sometimes there is no packet loss but am getting packet loss and input errors mostly.
Confiration is something like this:
6509:
Interface vlan xxx
ip address x x x x 255.255.252.0
exit
int gig x/x
swithport
swicthport mode trunk
switchport trunk encapsulation isl
exit
6513:
Interface vlan xxx
ip address x x x x 255.255.252.0
exit
int gig x/x
swithport
swicthport mode trunk
switchport trunk encapsulation isl
exit
Hopefully expecting for your replies....
regards
06-21-2009 11:01 PM
Hello Karthi,
to get better help you should post
sh int gix/x
sh int giy/y
from both devices to see the type of errors and to see the flowcontrol settings.
a sh module from both devices can also help, performance changes in different linecards.
Hope to help
Giuseppe
06-22-2009 12:32 AM
here is the sh int output..
06-22-2009 12:33 AM
6513:
GigabitEthernet8/1 is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is 0011.5cb4.c9d8 (bia 0011.5cb4.c9d8)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 7/255, rxload 10/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is LH
input flow-control is off, output flow-control is off
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:42, output 00:00:41, output hang never
Last clearing of "show interface" counters 04:49:51
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 41464000 bits/sec, 8827 packets/sec
5 minute output rate 30853000 bits/sec, 8104 packets/sec
221369956 packets input, 128161040987 bytes, 0 no buffer
Received 1503922 broadcasts (991434 multicasts)
71 runts, 0 giants, 0 throttles
602 input errors, 0 CRC, 529 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
212369473 packets output, 90044899454 bytes, 0 underruns
0 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
06-22-2009 12:34 AM
6509:
sh int gig 5/2
GigabitEthernet5/2 is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is 0017.9441.50ed (bia 0017.9441.50ed)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 11/255, rxload 7/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is LH
Media-type configured as SFP connector
input flow-control is off, output flow-control is off
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:40, output 00:00:42, output hang never
Last clearing of "show interface" counters 02:45:49
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 30861000 bits/sec, 8367 packets/sec
5 minute output rate 44828000 bits/sec, 9583 packets/sec
123553133 packets input, 55796334027 bytes, 0 no buffer
Received 613071 broadcasts (287169 multicasts)
4871 runts, 0 giants, 0 throttles
39546 input errors, 0 CRC, 34527 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
128434756 packets output, 73240658392 bytes, 0 underruns
0 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
06-22-2009 12:35 AM
hi,
pls share your valuable suggestions...
regards
06-23-2009 09:28 AM
I'd replace your Fiber uplinks and GBIC/SFP.
06-23-2009 09:31 AM
Also make sure the rest of your trunked switches are isl or change everything to dot1q
06-23-2009 10:26 AM
Hello Karthi,
I think that Glen has pointed out the possible reason:
the SFP are LH
you have most errors of type frame: the two devices can be too near to each other and so the receiver of one side can find difficult to receive correctly (the signal is too strong).
Hope to help
Giuseppe
06-23-2009 09:48 AM
How far a run is it and what type of fiber. If its a short MM run then you may need mode conditoning patch cables.
http://www.cisco.com/en/US/prod/collateral/modules/ps5455/product_bulletin_c25-530836.html
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