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Cisco 4506 switch giving off 101151: *Mar 10 04:16:37.283: %C4K_HWPORTMAN-4-BLOCKEDTXQUEUE: Blocked transmit queue HwTxQId3 on Switch Phyport Gi3/1, count=917

Posted on 2011-03-09
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Last Modified: 2012-05-11
Our Syslog server is reporting the following on G3/1

101151: *Mar 10 04:16:37.283: %C4K_HWPORTMAN-4-BLOCKEDTXQUEUE: Blocked transmit queue HwTxQId3 on Switch Phyport Gi3/1, count=917

Anyone seen this this one??

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Question by:yoyoma788
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Common CatOS Error Messages on Catalyst 4500/4000 Series Switches

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Contents
Introduction
Prerequisites
      Requirements
      Components Used
      Conventions
Error Messages on Catalyst 4500/4000 Series Switches
      %C4K_HWPORTMAN-4-BLOCKEDTXQUEUE:Blocked transmit queue HwTxQId[dec]on [char], count=[dec]
      %CDP-4-NVLANMISMATCH: Native vlan mismatch detected on port [dec]/[dec]
      DTP-1-ILGLCFG: Illegal config (on, isl--on,dot1q) on Port [mod/port]
      %IP-3-UDP_SOCKOVFL:UDP socket overflow
      %IP-3-UDP_BADCKSUM:UDP bad checksum
      %KERNEL-5-UNALIGNACCESS:Alignment correction made
      %MCAST-4-RX_JNRANGE:IGMP: Rcvd Report in the range
      MGMT-5-LOGIN_FAIL:User failed to log in from Console
      %PAGP-5-PORTFROMSTP / %PAGP-5-PORTTOSTP
      %SPANTREE-3-PORTDEL_FAILNOTFOUND
      %SYS-3-P2_ERROR: 1/Unknown module
      %SYS-3-P2_ERROR: 1/Have run out of vbufs (internal buffers)
      %SYS-3-P2_ERROR: Host xx:xx:xx:xx:xx:xx is flapping between ports
      %SYS-4-P2_WARN: 1/Blocked queue (tx) on port [char]
      %SYS-4-P2_WARN: 1/Filtering Ethernet MAC address of value zero
      %SYS-4-P2_WARN: 1/Invalid crc, dropped packet, count = xx
      %SYS-4-P2_WARN: 1/Invalid traffic from multicast source address
      %SYS-4-P2_WARN: 1/Astro(mod/port)
      %SYS-4-P2_WARN: 1/Tag 0
      convert_post_SAC_CiscoMIB:Nvram block [#] unconvertible
      Global checksum failed error
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Related Information
Introduction

This document provides a brief explanation of common system log (syslog) and error messages that you see on Cisco Catalyst 4500/4000 series switches that run Catalyst OS (CatOS) software.

If you do not find the details for a specific error message in this document, use the Error Message Decoder (registered customers only) tool. This tool provides the meaning of error messages that Cisco IOS® Software and CatOS software generate.

Note: The exact format of the syslog and error messages that this document describes can vary. The variation depends on the software release that runs on the switch Supervisor Engine.

Note: This is the recommended minimum logging configuration on the Catalyst 4500/4000 series switches:

    Set the date and time on the switch, or configure the switch to use Network Time Protocol (NTP) in order to obtain the date and time from an NTP server.

    Note: Issue the set time command in order to set the date and time on the switch.

    Ensure that logging and logging time stamps are enabled, which is the default.

    Configure the switch to log to a syslog server, if possible.

The error messages in this document can occur on the Catalyst 4500/4000 series switches and on derivatives of these switches, such as Catalyst 2948G, 2980G, and 4912G switches.
Prerequisites
Requirements

There are no specific requirements for this document.
Components Used

This document is not restricted to specific software or hardware versions.
Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.
Error Messages on Catalyst 4500/4000 Series Switches
%C4K_HWPORTMAN-4-BLOCKEDTXQUEUE:Blocked transmit queue HwTxQId[dec]on [char], count=[dec]
Problem

The switch generates %C4K_HWPORTMAN-4-BLOCKEDTXQUEUE:Blocked transmit queue HwTxQId[dec]on[char], count=[dec] errors.
Description

This rate-limited message indicates that a transmit queue on a port is blocked for reasons other than “paused”. In other words, the traffic on that port is being limited and blocked. You see the blocked transmit queue messages if the Supervisor Engine is not able to send packets to the line card because of the reception of a busy bit from the line card. Bad hardware or a speed/duplex mismatch can cause this problem. The workaround is to configure both sides of the link to autonegotiate for speed and duplex. Issue the shut/no shut command in order to recover the port. If the problem persists, move the connected device to another port and see if the problem happens there. As a final measure to unblock the transmit (Tx) queue, issue the hw-module reset command in order to reboot the switch or reset the line card.

http://www.cisco.com/en/US/products/hw/switches/ps663/products_tech_note09186a00801434de.shtml#subtopic1aa
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