Switching

  dears   i am receiving this messages daily  the same mac address is seen for 3 different IP addresses. i think this is a cluster. is this normal or a problem ?   2016 Apr 18 17:36:21 Nexus5K01 %FWM-2-STM_LEARNING_RE_ENABLE: Re enabling dynamic lear...

Hi, entry number 5414 : IPMCAST_RPF-4-RPF_LOOKUP_LOOP RPF route lookup loop for 169.254.48.178 timestamp: 2134226590 What  does it mean , how to solve this  Thanks

I am having difficulty getting my switch to boot. I think it is a bad flash file. Any way to remedy this? Here is some output

Hi All I went through RMA guidelines but it didnt give me any definitive answer.  We have a customer who is going to install 3650 switches in rather "dusty" environment - cooling plant areas, manufacturing areas etc. are there any RMA guidelines if...

Hi,I’m planning to install a brand new Cisco firewall as follows. Current DesignSwitch A ------ Switch BProposed DesignSwitch A --- New Firewall --- Switch BIn order to determine which model, I need to know how many traffic/bandwidth on the network. ...

Hi!! I hope you guys can help us, How can we know if our Cisco card "Cisco N2XX-AIPCI02 Intel Gigabit Ethernet Quad Port LAN Adapter PCI-Express X4" is Compatible with our Cisco UCS C220 M3 Rack server??? Where we can find this data? Thanks and R...

The responses I see from Cisco, that this is "Moderate Severity" and expected is not acceptable.  If this starts occurring in release 12.2(55) then it is clearly created by a bug.  The switch did not exhibit this behavior prior to this release.  Beca...

Hello. Validating an scenario that take advantage of the capabilities offered by a Fortigate solution in HA A-A (Active-Active) I´m trying to enable the topology attached (please see diagram in JPG format). As bellow I´m going to explain the issue pe...

Hi, I have a Cisco switch 2960 connected Polycom Phone(310) (There is an related Question on the support form no solution) Switch port configured with port security no static MAC addresses. PC connected behind the Polycom 310 works fine. If we discon...

Hi guys, I'll be running a Cisco catalyst 6500 series, with the following Fiber Line cards, WS-X6708-10G + WS-X6408A-GBIC. Moreover I need to add a 100Mbit/s fiber module (it's for Internet Connectivity), is there any way to set it up ? For the Gbic...

Hi all! We have problems regarding DHCP on Nexus 9 with Nx-OS 7.0.3. We have many VLANs but on VLAN 16 PCs can't get IP address from DHCP server. Using a static IP on the same VLAN is working fine. we use ip dhcp relay command and the configuration ...

2960 plus support Dynamic trunking protocol or not ?

Which are the best practices to re-use a C3850 removed from a previous stack? I had two stacked c3850, now i want to use them as stand-alone switch. I know how to remove switch 2 from the stack using "no provision..." command on switch 1, but then wh...

 Hi , Can anyone please help me to know what is the deference between  WS-C3650-24TS and  WS-C3560V2-24TS-E  . As per the cisco website  end of sale and life  announced for  WS-C3560V2-24TS-E   ( For V2 series) . http://www.cisco.com/c/en/us/prod...