Switching

Hi All,We have a Dell M1000e Chassis containing four Cisco 3130 switches in a stack. On two occasions now when we have rebooted a blade server, the server has lost full or partial connectivity with the rest of the network, as if the Port channel / vl...

 Hi, i'm in need of ios image for cisco 2950 series switch, because when its boots up its shows me a error message, Error loading "flash:c2950-i6q412-mz.121-13.EA1.bin" 

Hello.I have 5 switches 3850. I want to powerstack it. I read currently only 4 switches are allowed((( I upgraded switches to  Version 03.03.03.SE. I tried to set stack of 5 switches but log was generated:%PLATFORM_STACKPOWER-3-INVALID_TOPOLOGY: Inva...

I have a scenario. Two major companies have their Two switches connected together (3750X-24P) via a patch cable. The link between the two switches is an access port. I want Vlan 12 to communicate with users of Vlan 15 on other side. I know on trunk p...

 what AC power supplies are compatible with Cisco Nexus 7604  ( i mean part numbers )  ?Also if i want to get STM cards for Cisco Nexus 7604   , what are the compatible Cards ( Part numbers ) ?

 Hello Team,I would like to know about the reconfiguration of VSS on Catalyst 6509. VSS is already running but we need to reconfigure it on other ports.Currently Its is running on the VS-S720-10G Supervisor 2x10-G ports but we need to reconfigure it ...

Hi everyone I'm facing a problem i cannot solve with a SG300-20. Hope someone have a hint.What i try to do is, to create a VLAN for allocating Public IP's from the ISP. The infrastructure is as followed. Got a cable modem with one ethernet port from ...

Dear all,Anyone struggled with the same problem:According the specs the F3 line card should support FEX 2000 (in our case: NX2248PQ and NX2238TP)While configuring an interface with "SWITCH MODE FEX-FABRIC", the system complains with:DC1(config-if)# s...

Hi,How can I make2960S stack numbering unchanged after power-on?I apply stack-master highest priority (14)After power-up sometimes Master Switch number becomes #2 or #3 or #4 sw#sh switch detailSwitch/Stack Mac Address : c025.5ccf.7c00               ...

Port Security is enabled on switch, hence random mac's are disabled. But what if an insider disconnect his company assigned PC and connect with his own laptop into the same port having spoofed mac address of PC. Is there a way to detect that employee...

I am planning on performing a ISSU upgrade to a pair of 5510 nexus switches.  When I run the show install all impact command, it states an issue with a vPC port-channel and bridge assurance being enabled.  I have the read that best practice for vPC i...

Good day to all.I have Cisco Catalyst 3560 Syslog which you can see bellow \%PLATFORM-1-CRASHED: Program Exception (0x0700)!00:02:10: %PLATFORM-1-CRASHED:  00:02:10: %PLATFORM-1-CRASHED: SRR0 = 0x00882B94  SRR1 = 0x00029230  SRR2 = 0x006310EC  SRR3 =...

Hello, I'm looking to understand AAA commands better and different ways to setup it up. I've looked at the manuals but get lost mostly because it's boring to read. Is there a resource or a site that breaks this down in a better format that other folk...