10-09-2002 01:11 PM - edited 03-02-2019 01:57 AM
When I perform a show counters on a 10/100 port (Catalyst 5509 WS-X5225R) there is a counter for RxCBLDrop. Can someone explain what information this counter is reporting? I have searched Cisco's web site, and I cannot find any useful information regarding this counter.
10-09-2002 02:49 PM
This counter gets incremented if the port is dropping frames because of
a spantree blocked state. Color blocking errors are generated when a
configured port on a switch is seeing frames from a VLAN other than the one
it is configured to support. Usually the "RxCBLDrop" counter gets incremented if the port is dropping frames because of a spantree blocked state for a particular vlan.
Is this port configured as a trunk? Can you post the output of sh spantree x/y
10-09-2002 02:54 PM
Here is the spantree output.
TRIBSW1> (enable) sho spantree 4/2
Port Vlan Port-State Cost Priority Fast-Start Group-Method
--------- ---- ------------- ----- -------- ---------- ------------
4/2 149 forwarding 19 32 enabled
TRIBSW1> (enable)
10-09-2002 03:03 PM
Does the counter increment? clear counters and monitor. Also what connects to this port and what software version are you running
10-09-2002 03:15 PM
The device connected to this port is a G3 iMac. This machine is pulling graphics files from a G4 server and manipulates the data. The counter is only incrementing when the iMac crashes. Here is a sho ver of the switch it is connected to:
TRIBSW1> (enable) sho ver
WS-C5509 Software, Version McpSW: 4.5(2) NmpSW: 4.5(2)
Copyright (c) 1995-1999 by Cisco Systems
NMP S/W compiled on Jun 26 1999, 09:36:42
MCP S/W compiled on Jun 26 1999, 09:34:41
System Bootstrap Version: 3.1.2
Hardware Version: 1.0 Model: WS-C5509 Serial #: 067514314
Mod Port Model Serial # Versions
--- ---- ---------- --------- ----------------------------------------
1 2 WS-X5530 013357293 Hw : 3.2
Fw : 3.1.2
Fw1: 4.4(1)
Sw : 4.5(2)
3 3 WS-X5403 012942214 Hw : 1.2
Fw : 4.1(1)
Sw : 4.5(2)
4 24 WS-X5225R 013406788 Hw : 3.1
Fw : 4.3(1)
Sw : 4.5(2)
5 24 WS-X5225R 013404716 Hw : 3.1
Fw : 4.3(1)
Sw : 4.5(2)
6 24 WS-X5225R 021817786 Hw : 3.3
Fw : 4.3(1)
Sw : 4.5(2)
DRAM FLASH NVRAM
Module Total Used Free Total Used Free Total Used Free
------ ------- ------- ------- ------- ------- ------- ----- ----- -----
1 32640K 14325K 18315K 8192K 4126K 4066K 512K 143K 369K
Uptime is 188 days, 21 hours, 39 minutes
TRIBSW1> (enable)
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