Switching

Dear all,I know that  have posted this already before in the WAN Switching forum but I found no proper solutionI have Catalyst 2960 switch and 3560 PoE switch are connected together through a 1M leased line via trunk ports.I cannot ping from any side...

Hi all,Two days ago I found the next error in my Cisco 3825:000026: Nov 18 08:44:56.722 MEXICO: %TCP-2-INVALIDTCPENCAPS: Invalid TCB encaps pointer: 0x63E6B278 -Process= "TCP Driver", ipl= 0, pid= 162 -Traceback= 0x60B43250 0x611594C4 0x6115A6C4 0x60...

Hi - new to Cisco here, and would like to get some thoughts from the group.  Hope I'm posting this in the right area.   I'm helping troubleshoot some strange network behavior, so any input to point me in the right direction would be appreciated given...

The switch acts as a means to contact the other devices that are switches and routers. (Do  I need a telnet or virtual terminal or just a hostname/ip with a secret-password to access those other devices through the switch?)Firstly one of those device...

the ff is the scenario-4507r-redundant sup 5requirement-replace flash on the standby sup without any downtime (production)iam planning to do the ff steps-remove the standby sup-replace the flash-insert the sup engine back-copy tftp:ios_image slaveboo...

what is the difference between bootflash and slot on the following comand;Switch#copy source_device:source_filename slot0:target_filenameOr:Switch#copy source_device:source_filename bootflash:target_filename

How can I find out why my default gateway router (Cisco 857) keeps sending out ARP requests for the MAC address of a host that is offline?When I sniff packets on the internal LAN, I continue to see these broadcast ARP requests coming from this router...

when the traffic comes into the mirroring interface(so called the span destination port),the traffic is forwarding to other direction? reference system routing table?when I show interface the mirroring interface, I found the inbound rate from neighbo...

hello,what is the use of the external memory slot infront of sup 5 and when it is designed to be used?thanks