07-16-2007 11:29 AM - edited 03-05-2019 05:19 PM
Hi all. I have a Catalyst 1900 behind a 1750 router. Users complain about their applications being dropped throughout the day. The switch doesn't stop responding to ping. The users usually reboot their computers and the issue is resolved. Could this be a flapping port?
The weird thing is port 0/8 shows up, but does not show up as plugged in when using the show mac-addresst table. Can anyone help me troubleshoot this issue?
Thanks
0001.422C.75E8 Ethernet 0/10 Dynamic All
0008.7430.1CB8 Ethernet 0/15 Dynamic All
0006.5B6F.EA74 Ethernet 0/5 Dynamic All
000B.DB41.141C Ethernet 0/4 Dynamic All
00B0.D008.942D Ethernet 0/3 Dynamic All
0040.2B60.E195 Ethernet 0/6 Dynamic All
0030.C153.BDBC Ethernet 0/1 Dynamic All
0030.C154.724B Ethernet 0/2 Dynamic All
07-16-2007 11:35 AM
Ethernet 0/8 is Suspended-no-linkbeat
Hardware is Built-in 10Base-T
Address is 0003.6BFB.7748
MTU 1500 bytes, BW 10000 Kbits
802.1d STP State: Forwarding Forward Transitions: 1
Port monitoring: Disabled
Unknown unicast flooding: Enabled
Unregistered multicast flooding: Enabled
Description:
Duplex setting: Half duplex
Back pressure: Disabled
--More--
Receive Statistics Transmit Statistics
------------------------------------- -------------------------------------
Total good frames 578795 Total frames 861014
Total octets 187641983 Total octets 623904478
Broadcast/multicast frames 10826 Broadcast/multicast frames 227775
Broadcast/multicast octets 1491369 Broadcast/multicast octets 16695674
Good frames forwarded 578795 Deferrals 1196
Frames filtered 0 Single collisions 5067
Runt frames 2 Multiple collisions 5107
No buffer discards 0 Excessive collisions 0
Queue full discards 0
Errors: Errors:
FCS errors 0 Late collisions 0
Alignment errors 4 Excessive deferrals 333
Giant frames 4 Jabber errors 0
Address violations 0 Other transmit errors 0
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