Out Discard Error
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Catalyst 6500 Series SwitchesTroubleshoot and AlertsTroubleshooting TechNotes Troubleshooting Switch Port and Interface Problems Download Print Available Languages Download Options PDF (108.2 KB) View with Adobe Reader on cisco show interface status a variety of devices Updated:Apr 03, 2009 Document ID:12027 Contents Introduction Prerequisites Requirements
Cisco Switch Output Drops
Components Used Conventions Physical Layer Troubleshooting Using the LEDs to Troubleshoot Check the Cable and Both Sides of the Connection cisco show interface errors Ethernet Copper and Fiber Cables Gigabit Ethernet Troubleshooting Connected vs Notconnected Most Common Port and Interface Troubleshooting Commands for CatOS and Cisco IOS Understanding Specific Port and Interface Counter Output for CatOS
Cisco Input Errors
and Cisco IOS Show Port for CatOS and Show Interfaces for Cisco IOS Show Mac for CatOS and Show Interfaces Counters for Cisco IOS Show Counters for CatOS and Show Counters Interface for Cisco IOS Show Controller Ethernet-Controller for Cisco IOS Show Top for CatOS Common System Error Messages Error Messages on WS-X6348 Modules %PAGP-5-PORTTO / FROMSTP and %ETHC-5-PORTTO / FROMSTP %SPANTREE-3-PORTDEL_FAILNOTFOUND %SYS-4-PORT_GBICBADEEPROM: / cisco output errors %SYS-4-PORT_GBICNOTSUPP %AMDP2_FE-3-UNDERFLO %INTR_MGR-DFC1-3-INTR: Queueing Engine (Blackwater) [1]: FIC Fabric-A Received Unexpected Control Code Command Rejected: [Interface] not a Switching Port Common Port and Interface Problems Port or Interface Status is Disable or Shutdown Port or Interface Status is errDisable Port or Interface Status is Inactive Uplink Port or Interface Status is Inactive Deferred Counter on the Catalyst Switch Interface Starts Incrementing Intermittent Failure to set timer [value] from vlan [vlan no] Trunking Mode Mismatch Jumbos, Giants, and Baby Giants Cannot Ping End Device Using Set Port Host or Switchport Host to Fix Startup Delays Speed/Duplex, Autonegotiation, or NIC Issues Spanning Tree Loops UDLD: One-Way Link Deferred Frames (Out-Lost or Out-Discard) Software Problems Hardware Problems Input Errors on a Layer 3 Interface Connected to a Layer 2 Switchport Rapidly Incrementing Rx-No-Pkt-Buff Counter and Input Errors Understand Unknown Protocol Drops Trunking between a Switch and a Router Connectivity Issues due to Oversubscription Subinterfaces in SPA Modules Troubleshooting rxTotalDrops Troubleshoot Output Drops Last Input Never from the Output of Show interface Command Related Information Introduction This document is intended to help determine why a port or interface experiences problems. This document applies to Catalyst swit
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BackProducts Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > Discard errors on Catalyst switch cisco interface resets Want to Advertise Here? Solved Discard errors on Catalyst switch Posted on 2009-09-15 Switches / Hubs 2 Verified Solutions 10 Comments 3,387 Views Last Modified: 2012-06-27 Getting discard errors but port counters do http://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/12027-53.html not show any errors example port 9/30 and 4/6 2009 Sep 11 12:38:35 %SYS-3-PORT_OUT_DISCARD:Port 4/6 detected 2026 output discard error(s) in last 30 minutes 2009 Sep 14 13:19:42 %SYS-3-PORT_OUT_DISCARD:Port 9/30 detected 2424795 output discard error(s) in last 30 minutes discard-errors.log.txt 0 Question by:Dragon0x40 Facebook Twitter LinkedIn Google LVL 50 Active 5 days ago Best Solution byDon Johnston From the Cisco output interpreter: %SYS-3-PORT_OUT_DISCARD:Port x/x detected [dec] output discard https://www.experts-exchange.com/questions/24734975/Discard-errors-on-Catalyst-switch.html error(s) in last [dec] minutes Explanation: This error message indicates that a number of outbound packets Go to Solution 10 Comments LVL 50 Overall: Level 50 Switches / Hubs 35 Message Active 5 days ago Accepted Solution by:Don Johnston2009-09-15 From the Cisco output interpreter: %SYS-3-PORT_OUT_DISCARD:Port x/x detected [dec] output discard error(s) in last [dec] minutes Explanation: This error message indicates that a number of outbound packets are being discarded even though they are valid. One reason for this could be that you are sending more traffic than the port can handle. Recommended Action:You won't see any errors on the port itself, instead you could monitor inbound and outbound traffic on the port using the commands 'Show Mac' (for CatOS) and 'Show Interfaces Counters' (for Cisco IOS). Your network may be sending too many packets through this port for the port to handle at its current speed/duplex setting. This could happen where you have multiple high-speed ports flowing to a single (usually slower) port. Consider moving the device connected off this port to faster media. For example, if the port is 10 Mbps, move this device to a 100 Mbps or Gigabit port. Consider changing the topology to route frames differently. Avoid
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