Switching

Hello, a customer has two Catalyst 4507R+E chassis in an VSS cluster. The last year update to Version 03.11.07 with ISSU worked flawless. This year the target was to move from 03.11.07 to the latest 03.11.10. But with the ISSU process we ran in an is...

Hello All, i have new 9200l cisco Switches' and they are stacked switches .And currently working on IOS version 17.06.03.To upgrade the IOS version (17.09.04a)of these new switches ,I am trying to copy IOS file from Pen drive to switch flash memory  ...

Hi. Following are the details of the switch  cisco Nexus3500 C3548P-10GX Chassis Intel(R) Core(TM) i3- CPU @ 2.50GHz with 16396528 kB of memory. Processor Board ID FOC25244X6C  We were interested in doing the analysis of packets (particularly TCP/UDP...

Hi everyone, I have two Cisco 9404R and 48 24-port 2960, and have configured a virtual private network with an internal LAN of Category 5e 1000 mega lines. My external Internet WAN uses SK 100 mega lines. When one of the internal PC in the virtual pr...

I have a requirement to add a secondary stack to a 3850 switch. The primary switch is set as priority 1 and the standby which will be connected is set at priority 14. Will I be able to copy ios into both switches stacked without changing priority 

Hi,Is it possible to extract from the switch configuration with basic cisco IOS commands which switch port has the trunk configured. The idea is that the return data from the given command will be the port number containing the switch port mode trunk...

What happens to a RSPAN packet sent to a switch without RSPAN configured, but has the VLAN?RSPAN configured on switch1 with source vlan4, destination vlan5.RSPAN not configured on switch2 or switch3.VLAN 4 is a client VLAN and clients connected to sw...

I have a switch stack that I have to clear the arp and mac table every morning for some certain users to be able to work. Has anyone had these issues or know of a bug for the version of code I am on? I know this isn't a lot of info but as soon as I s...

I want to know if my SFP is working excellent or has problem . When I type show interface fc1/2 transceiver details it is showing follow output :fc1/2 sfp is presentName is CISCO-FINISARManufacturer's part number is FTLF8529P3BCV-CSRevision is ASeria...

Hi.  I'm working on getting things setup with my 3750.  I'm a total noob, so forgive my ignorance but I've hit a new stumbling block.  I wanted to take the config I got from show running-config and make some changes then paste it back in.  So I copie...

Hi!I bought a Catalyst 3750-E WS-C3750E-48TD-S from eBay for $25. I was actually at their warehouse picking up a printer and saw it sitting there and figured hell, 48 gig ports for $25? Heck yea lol. I know jack about Cisco though, I've never touched...

How can I emulate switch in GNS3 for learning purposes to practice building real lab for  CCNA/CCNP certifications. I love GNS3- it is a great tool which can run real Router IOS, but still limitation for learning switching functionalities.  Please up...