Find answers to your questions by entering keywords or phrases in the Search bar above. /Nums [0 32 0 R] When you add the VLAN back into the VLAN table from a VTP server switch, the ports of the switches in the domain that belong to that restored VLAN become active again. The Catalyst4912G, 2948G, and 2980G switches are fixed-configuration switches, but are logically modular. Common Causes:Check for a bad cable. Use thespeedandduplexcommands from interface configuration mode to hardcode both sides to 10 or 100 and half or full as necessary. These types of errors on the interface are related to a traffic problem with the ports oversubscribed. This is the command to use on the Catalyst 6000, 4000, 3550, 2950, and and 3750 series. An SX GBIC does not link with an LX GBIC. Normally the deferred frames are the number of frames that have been transmitted successfully after waiting for the media, because the media was busy. These types of errors increase rapidly, especially when the traffic that passes through that link is high or when it has devices such as servers connected to that interface. If not, contact the TAC, as this can be a faulty port. >> These messages generally tell you what the mismatch is and where it occurs. When you use an LX/LH GBIC with 62.5-micron diameter MMF, you must install a mode-conditioning patch cord (CAB-GELX-625 or equivalent) between the GBIC and the MMF cable on both the transmit and receive ends of the link. endobj << /Type /Annot The Rx-No-Pkt-Buff does not depend on the total traffic rate. Try the cable in another port or interface if one is available and see if the problem continues. /V 58 0 R >> For information about setting the IP address and default gateway, see "Configuring the Switch IP Address and Default Gateway.". Problems sometimes occur between Cisco switches and certain third-party NIC cards. This does not tell you whether autoneg was used to achieve this. >> The table describes the LED status indicators for Ethernet modules or fixed-configuration switches: Ensure that both sides have a link. As an example, consider a scenario where a 1gig multicast stream is forwarded to 24 100 Mbps ports. >> . The number of frames dropped on an interface because the CFI bit is set. R2#show inter fa 0/0. Description:show interfacescounter. 06:17 PM . In order to resolve this issue, complete these steps: Make sure Cisco Discovery Protocol (CDP) runs between the switch and router and both can see each other. No destination multicast are the number of multicast packets that the port did not forward to any other ports. This is helpful to use to determine whether a misconfiguration of the mod/port or interface can cause a problem. /Count 24 Description:show interfacesand show interfaces counters errors. For troubleshoot information, see theDeferred Frames (Out-Lost or Out-Discard)section of this document. Warning: Category 5e and Category 6 cables can store high levels of static electricity because of the dielectric properties of the materials used in their construction. All switches in the path must be reachable from each other. Text All rights reserved. This section lists the guidelines for the Layer 2 Traceroute utility: The Layer 2 Traceroute utility works for unicast traffic only. This is an example of output from the show interfaces command for an interface: "How long the port is in Up or Down status" is NOT the same thing as "the last time a port sent or received traffic." Cisco IOS has the option to use theglobal spanning-tree portfast defaultcommand to automatically apply portfast to any interface configured as a layer 2 access switchport. Share Improve this question Follow asked Aug 23, 2015 at 6:13 ae41 Use these resources to familiarize yourself with the community: Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. The frames received that are smaller than the minimum IEEE 802.3 frame size (64 bytes for Ethernet), and with a bad CRC.Common Causes:This can be caused by a duplex mismatch and physical problems, such as a bad cable, port, or NIC on the attached device.Platform Exceptions:Catalyst 4000 Series that run Cisco IOSPrevious to software Version 12.1(19)EW, a runt = undersize. The interfaces that are "up" are in the connected state. Last input nevermeans there was no successful interface packet transfer to other end point or terminal. /ModDate (D:20110317115332Z) If any devices in the path are transparent to CDP, l2trace will not be able to trace the Layer 2 path through those devices. Ifshow interfacesshows up/ line protocol up (connected) but you see errors increment in the output of either command, refer to the Common Port and Interface Problems section of this document for advice. /Count 4 Verify distance and cable used per GBIC as defined in this table. stream This commanda display the 32-bit and 64-bit error counters per port or interface. Generally, a one percent ratio of errors to total traffic is acceptable for half-duplex connections. 7 0 obj Description:For the Catalyst 6000 Series only - show interfaces counters error.Common Causes:See Platform Exceptions.Platform Exceptions:Catalyst 5000 Seriesrcv-err = receive buffer failures. By using command line(ssh), I can get switch interfaces status like belowjust demo: Cisco-Switch# show int status Port Name Status Vlan Duplex Speed Eth0/1 test_alias connected 1 a-full a-100 Eth0/2 notconnect 1 auto auto Eth0/3 connected 3 a-full a-100 Eth0/4 connected 3 a-full a-100 Eth0/5 potchann linkFlapE 255 auto auto Eth0/6 notconnect 300 auto auto Eth0/7 sfpAbsent routed auto . Number of frames that took longer than two seconds to travel through the switch. Jumbo frames are not defined as part of the IEEE Ethernet standard and are vendor-dependent. 8 0 obj For example, the Catalyst 1900/2820 turns ports orange when they are in STP block mode. /N 28 0 R Switches can participate as the source or destination of the traceroute command but will not appear as a hop in the traceroute command output. Use theshow interfaces fastEthernet 6/1 statuscommand to display this: Last input, output - The number of hours, minutes, and seconds since the last packet was successfully received or transmitted by the interface. This example shows the basic usage of the traceroute command: This example shows how to perform a traceroute with six queries to each hop with packets of 1400bytes each: Catalyst 4500 Series Software Configuration Guide, 7.5, Configuring the Switch IP Address and Default Gateway, Configuring Ethernet and Fast Ethernet Switching, Configuring Fast EtherChannel and Gigabit EtherChannel, Configuring Spanning Tree PortFast, BPDU Guard, BPDU Filter, UplinkFast, BackboneFast, and Loop Guard, Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports, Configuring Dynamic VLAN Membership with VMPS, Catalyst 4500 Series, Catalyst 2948G and Catalyst 2980G Switches Software Configuration Guide, 7.5, "Configuring the Switch IP Address and Default Gateway.