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 . The traffic load on the interface is excessive and causes the frames to be discarded. No action is required. /ModDate (D:20110317115332Z) Unknown protocol dropsis a counter on the interface. The number of times a collision occurred before the interface transmitted a frame to the media successfully.Common Causes:Collisions are normal for interfaces configured as half-duplex but must not be seen on full duplex interfaces. This can happen where you have multiple high-speed ports flowing to a single (usually slower) port. It also occurs when the hardware hits an oversubscription. /V 58 0 R After you issue this command, configure the port for any layer 2 properties. /Subtype /Link The Rx-No-Pkt-Buff does not depend on the total traffic rate. This can be an indication of faulty hardware, dot1q or ISL trunking configuration issues. Interface resets can occur along with the underruns. /Rect [162 422.8800048828 257.2799987793 434.1600036621] The sum of all errors that prevented the final transmission of datagrams out of the interface.Common Cause:This issue is due to the low Output Queue size. 18 0 obj 28 0 obj Try the following commands. % You can search known software bugs with the Software Bug Toolkit. Collisions must not be seen on interfaces configured as full duplex. If a packet is sent from any other port, in the same VLAN as port 0/2, the packet is dropped. The cable can have encountered physical stress that causes it to be functional at a marginal level. Refer toTroubleshooting Cisco Catalyst Switches to NIC Compatibility Issuesfor details on how to resolve third-party NIC issues. Port on switch down/down (notconnect) - Cisco - The Spiceworks Community Usually this means there was no packet transfer relative to that entity. /EmbeddedFiles 11 0 R Theshow interfacescard-type {slot/port}counterscommand is used when you run Cisco IOS on the Supervisor. The pause packets stop when the connected device is able to receive the traffic. Output queue - The number of packets in the output queue. Bad or wrong Gigabit Interface Convertor (GBIC). In order to avoid packet drops on the device connected to the catalyst switch, issue theip cefcommand on the fast Ethernet interface of the device connected to the switch. The Maximum Transmission Unit (MTU) of the data portion of an ethernet frame is 1500 bytes by default. In normal executive mode, the ping command supports the -s parameter, which allows you to specify the packet size and packet count. This kind of source routing is only defined for Token Ring and FDDI. 26 0 R] /docType () The two options are single mode fiber (SMF) or multimode fiber (MMF). Description:show interfaces counters errors. sh ip traffic - all traffic through the Cisco sh controllers ethernet-controller gi1/0/1 phy - information about the SFP module into a particular port show vlan internal usage - used to show vlan sh inventory raw - in 4924 about stuck SFP seems to be the only way to see. >> 1 0 obj /Dest (G1030299) 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. Failures of any test of a module or port show an 'F' in the test results. Reduce the switch load if thenumber of packets in this field increase. Duplex mismatch is a situation where the switch operates at full-duplex and the connected device operates at half-duplex, or vice versa.
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