Core Issue:Resolution:Also See: Core Issue:These are among the issues: Troubleshooting OSPF Neighbor States Troubleshooting the OSPF Routing Table Troubleshooting OSPF Init State Troubleshooting OSPF MTU Troubleshooting OSPF Corrupt P...
Core issueThe interprocess communication (IPC) errors generally indicate that both supervisors run different Cisco IOS software releases or have incorrect boot variable information. This does not always cause operational failure. In some scenarios, t...
Core issueMalformed packets cause Cisco Catalyst OS (CatOS) 7.x code to display %SYS-4-SUPERVISOR_ERR:Forwarding engine IP errors. These error message counters are recorded in the syslog:%SYS-4-SUPERVISOR_ERR:Forwarding engine IP length error counter...
Core IssueA software-forced crash occurs when the router detects a severe, unrecoverable error and reloads itself to prevent the sending of corrupted data. A vast majority of software-forced crashes are caused by Cisco IOS Software bugs, although so...
Core issueThe error message looks similar to this:%PFREDUN-4-PHYSMEM_MISMATCH: Asymmetrical redundant configuration: Active [chars] has ([int]/[int]K) memory, Standby has ([int]/[int]K)%PFREDUN-SP-4-PHYSMEM_MISMATCH: Asymmetrical redundant configurat...
Core issueConfiguration information resides in these two places when the Multilayer Switch Feature Card (MSFC) operates:The default (permanent) configuration in Non-Volatile RAM (NVRAM) The running (temporary) memory in RAM The default configuration ...
Core IssueThe Policy Feature Card (PFC) extends the features and functionality of the Catalyst 6000 family of switches by providing a number of enhancements such as advanced Quality of Service (QoS) features and security capabilities. Cisco Express F...
ResolutionWhen the total amount of traffic aggregated from the source ports exceeds the physical limitations of the destination port, it results in some dropped packets on the destination port. This does not cause any switch performance degregation o...
Core issueThis issue occurs in a scenario where two Cisco Catalyst switches in two different VTP domains are connected together via a cross-over cable and you see a link light, but no traffic passes at the Layer 2 level between the switches.A trunk l...
Core issueThis issue causes the Supervisor Engine to go to ROM Monitor (ROMmon) mode.ResolutionTo resolve this issue, perform these steps:Console into the Supervisor engine. If the prompt is displayed as ROMmon, the Supervisor Engine is not able ...
Core issueThe Cisco Catalyst 2940, 2950, 2955, 2970, 3550 and 3750 switches are not accessible from a router for IP address configuration.ResolutionIf the switch cannot be accessed, the management VLAN interface (VLAN 1 is the default management VLAN...
Core issueThe WS-X4506-GB-T module is a six-port alternately-wired 10/100/1000BASE-T Cisco Catalyst 4500 series Power over Ethernet (PoE) 802.3af or 1000BASE-X SFP. When installed in a 4500 switch running CatOS, the show module command displays the m...
Core issueWhen the auto-upgrade process cannot find the appropriate stack member software to copy to the switch in voicemail (VM) mode, the auto-advise process tells you the command, which is the archive copy-sw or archive download-sw privileged EXEC...
ResolutionThe MEM-S1-128MB= memory upgrade kit consists of two 64-MB DRAM, Dual Inline Memory Modules (DIMMs). The memory upgrade kit upgrades the total Supervisor Engine memory from 64 MB (2 32-MB DIMMs) to 128 MB (2 64-MB DIMMs).Issue the show vers...
ResolutionIt is very important that the switches added to or removed from the switch stack are powered OFF. Issue the switch provision global configuration command on the stack master in order to provision or supply a configuration to the new switch ...
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