Crc Error Packets
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Download Print Available Languages Download Options PDF (108.2 KB) View crc error fix with Adobe Reader on a variety of devices Updated:Apr 03, 2009 Document ID:12027 Contents Introduction input errors and crc errors on serial interface Prerequisites Requirements Components Used Conventions Physical Layer Troubleshooting Using the LEDs to Troubleshoot Check the Cable and Both Sides of the Connection Ethernet Copper and https://supportforums.cisco.com/discussion/10806391/crc-error-and-input-error-how-can-fix-these 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 and Cisco IOS Show Port for CatOS and Show Interfaces for Cisco IOS Show Mac for CatOS and Show Interfaces Counters for http://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/12027-53.html 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: / %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
SERVICES Services Overview Education Services Business Critical Services Consulting Services Managed Services Appliance Services CUSTOMER CENTER Customer Center Support Community MyVeritas Customer Success Licensing Programs Licensing Process ABOUT About Corporate Profile Corporate Leadership https://www.veritas.com/support/en_US/article.000010474 Newsroom Research Exchange Investor Relations Careers Legal Contact Us English 中文(简体) English http://searchnetworking.techtarget.com/tip/Common-network-errors-and-causes Français Deutsch Italiano 日本語 한국어 Português Español USA Site: Veritas Veritas PartnerNet What does some of the physical network errors means e.g. CRC errors? Article:000010474 Publish: Article URL:http://www.veritas.com/docs/000010474 Support / Article Sign In Remember me Forgot Password? Don't have a Veritas Account? Create a Veritas Account now! Welcome First crc error Last Your Profile Logout Sign in to Subscribe Please sign in to set up your subscription. Close Sign In Print Article Products Article Languages Subscribe to this Article Manage your Subscriptions Problem When troubleshooting networking issues it can help to understand the meaning on some of the errors seen in the interface statistics. Error Message 1. Alignment Errors crc error packets An Alignment Error indicates a received frame in which both are true:a. The number of bits received is an uneven byte count (that is, not an integral multiple of 8)b. The frame has a Frame Check Sequence (FCS) error. Alignment Errors often result from MAC layer packet formation problems, cabling problems that cause corrupted or lost data, and packets that pass through more than two cascaded multiport transceivers.2. CollisionsCollisions indicate that two devices detect that the network is idle and try to send packets at exactly the same time (within one round-trip delay). Because only one device can transmit at a time, both devices must stop sending and attempt to retransmit. Collisions are detected by the transmitting stations.The retransmission algorithm helps to ensure that the packets do not retransmit at the same time. However, if the two devices retry at nearly the same time, packets can collide again; the process repeats until either the packets finally pass onto the network without collisions, or 16 consecutive collisions occur and the packets are discarded.3. Excessive CollisionsExcessive Collisions indicate that 16 consec
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