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Community Member

Help on Show Controller

Hi All,

Am working with Cisco 4000 L3 Switch IOS ver 12.2

I am finding runts error on most of the Gigabitports. All the interfaces are in 100 mbps Full duplex. But when I execute "Show controller" it gives the following output.

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#show controllers

Dagobah MAC:

MAC address:

Restarted: 1

Rx packets: 2966220

Rx packets reported by hardware: 2966220

Rx error count: 0

Rx engine restarted: 0

Tx packets: 2966219

Tx packets reported by hardware: 2966219

Currently queued Tx packets: 0

High watermark for Tx queue: 6

Tx error count: 0

Dropped Tx packets: 0

Internal error count: 0

Interrupt count: 5686554

Link events: 1

Count of Phy polls: 5725833

Count of postprocessing: 5686555

Phy status: 100Mb Half

My confussion is in this what is meant by "Phy Status: 100Mb Half"? Is any relation with individual interface speed and duplex...will it affect the switch performance..? is any relation for runt errors..?

Please help me on this.

7 REPLIES

Re: Help on Show Controller

Hi,

Try to put both interfaces on FULL DUPLEX

and do a clear counters on the interface ...

and see if the errors are still comming up ...

Also try another interface

If you find this post usefull

please don't forget to rate this

#########################################

#Iwan Hoogendoorn

#########################################

Community Member

Re: Help on Show Controller

Hi,

The ports are already in Full Duplex. But in "show Controller" output it showing "Phy Status: 100 Mb Half.

how to change it to Full duplex...?

Re: Help on Show Controller

interface fast 0/x

duplex full

speed 100

and do the same on the other device on the other end ...

If you find this post usefull

please don't forget to rate this

#########################################

#Iwan Hoogendoorn

#########################################

Re: Help on Show Controller

Are you sure your cabling is correct? DTE to DTE is crossed, DCE to DCE is crossed, DTE to DCE is straight.

What is the port or module exact model?

Community Member

Re: Help on Show Controller

Hi,

Its Switch, I belive there is no DTE / DCE interfaces.

The Server is connected on Gigabitport. The port setting is 100 MB Fullduplex.

Eventhough the ports were configured as 100 Mb Full...the controller showing "Phy Status: 100 MB half"

Here what is Phy Status? is any common configuration for the switch if so how to change it to Full DUplex....?

Please let me know if you need any other information.

Re: Help on Show Controller

As mentioned, can you post the exact port model or network module of the switch that show Phys Interface 100 half?

Community Member

Help on Show Controller

i know this is a OOOLD post - but to answer your question this EOBC port is a half duplex channel:

The Ethernet Out of Band Channel (EOBC) is a  half duplex channel that services many functions, which include the  Simple Network Management Protocol (SNMP) and the packets that are  destined for the switch. In order to ensure constant communication, some  keep-alives run over the EOBC.

taken from :

https://supportforums.cisco.com/docs/DOC-4622

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