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Undersize Description: CatOS sh port and Cisco IOS sh interfaces counters errors . I know this is off subject however I just had to ask. For switches that run Cisco IOS, this command displays output similar to a Cisco router, like software image name and version information and system memory sizes. Thanks again Meanwhile, back in the city... Source

matrix 'overall' (default) Element by element Total number of symbol errors 'column-wise'mth column of x vs. Select Custom or Input port to list the indices of the RX frame elements that the object should consider when making comparisons. Generally, a one percent ratio of errors to total traffic is acceptable for half-duplex connections. Obviously, if they are being dropped the buffers are being kept very busy with other data and therefore could indicate congestion.

Common Causes: This can occur in a high throughput situation where an interface is hit with a high volume of bursty traffic from many other interfaces all at once. Excessive errors for certain counters usually indicate a problem. Size/max/drops = the current number of frames in the queue / the max number of frames the queue can hold before it must start dropping frames / the actual number of

This issue is resolved in Cisco IOS release 12.1(19)EA1 or 12.2(18)SE or later. Platform Exceptions: Catalyst 4000 Series that run Cisco IOS Previous to software Version 12.1(19)EW, a runt = undersize. PortRcvRemotePhysicalErrors Similar to!PortRcvErrors, the end bad packet EBP flag is set. Giants Description: CatOS sh port and Cisco IOS sh interfaces and sh interfaces counters errors.

The ibtracert command can provide that information by displaying the GUIDs, ports, and LIDs of the nodes.On the command-line interface (CLI), run the following command: # ibtracert slid dlid where slid After 12.1(19)EW, a giant in show interfaces increments only when a frame is received >1518bytes with a bad FCS. each row of xTotal number of symbol errors 'row-wise' (default) y vs. On the command-line interface (CLI), run the following command: # ibclearerrors The output is displayed, as in the following example: ## Summary: 5 nodes cleared 0 errors # 14.2.2 Clearing Data

It could be a bad cable or NIC on the far end. Multi-Col Description: CatOS sh port and Cisco IOS sh interfaces counters errors. The number of times one collision occurred before the interface transmitted a frame to the media successfully. http://networking.ventrefamily.com dieselboy Post Whore Posts: 2747 Joined: Tue Aug 05, 2008 6:36 am Certs: CCNP, CCNA Voice, SMB Select, Linux+ Re: Random Input errors Wed Jun 01, 2011 11:05 am Exactly

The number of times a collision occurred before the interface transmitted a frame to the media successfully. Show Port for CatOS and Show Interfaces for Cisco IOS The show port {mod/port} command is used when that run CatOS on the Supervisor. Show Controller Ethernet-Controller for Cisco IOS For Catalyst 3750, 3550, 2970, 2950/2955, 2940, and 2900/3500XL switches use the command show controller ethernet-controller to display traffic counter and error counter output that If collisions increase dramatically, this points to a highly utilized link or possibly a duplex mismatch with the attached device.

The mode-conditioning patch cord is required for link distances less than 328 feet (100 m) or greater than 984 feet (300 m). this contact form On the command-line interface (CLI), run the following command: # ibcheckstate -v The output is displayed, as in the following example: # Checking Switch: nodeguid 0x0021283a8389a0a0 Node check lid 15: OK Warning:Disabling auto-negotiation hides link drops or physical layer problems. Common Causes: This can occur in a high throughput situation where an interface is hit with a high volume of bursty traffic from many other interfaces all at once.

For Cisco IOS, the show counters interface command was introduced in software version 12.1(13)E for the Catalyst 6000 series only and is the equivalent of the show counters command for CatOS The output in the example is only a small portion of the actual output. 14.2 Controlling the InfiniBand Fabric This section contains the following topics: Clearing Error Counters Clearing Data Counters This increments when the CRC generated by the originating LAN station or far-end device does not match the checksum calculated from the data received. have a peek here The Canonical Format Indicator (CFI) bit in the TCI of an 802.1q frame is is set to 0 for the ethernet canonical frame format.

output errors Description: Cisco IOS sh interfaces counter. The reasons for this include 1. If the port is in a VLAN by itself, and no other ports on the switch belong to that VLAN, all inbound packets are dropped and the counter increments.

CatOS counter indicating that the transmit jabber timer expired.

After 16 attempts have been made to send the packet the packet is dropped, and the counter increments. Note: If a port value of 255 is specified for a switch node, the counters are the total for all switch ports. Network cables have been replaced anyway. The filter for raw packets [ inbound | outbound ] is turned on and these are raw packets 2.

Frames that increment at the upper end of this counter run the risk of exceeding 15 collisions and being counted as Excessive collisions. An SX GBIC needs to connect with an SX GBIC. After 12.1(19)EW, a giant in show interfaces increments only when a frame is received >1518bytes with a bad FCS. http://netlookmag.com/symbol-error/symbol-error-during-carrier.html Does running a blog such as this take a large amount of work?

The number of failed buffers and the number of buffers swapped out. Common Causes: One possible reason to discard such a packet can be to free up buffer space. If the FCS, CRC, alignment, or runt counters increment, check for a duplex mismatch. Refer to the Catalyst Switch Cable Guide.

Xmit-Err Description: CatOS sh port and Cisco IOS sh interfaces counters errors. The default is 0. When you set this property to Custom, you can list the indices as a scalar or a column vector of double-precision integers through the CustomSamples property. See schematic (a) in the figure.If one is a row (respectively, column) vector and the other is a two-dimensional matrix, then symerr compares the vector element by element with each row

The number of times one collision occurred before the interface transmitted a frame to the media successfully.