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Hello,I wanted to measure the time that the connectivity is lost when a link is broken (in millisecond) before RSTP recover the connectivity can sameone tel me how to do that , i tried ping but it's not accurate ? Thanks.

Hi,   Just a hopefully quick question :)   Is there IPv6 device tracking support on the 3560CX platform in any software release?  If not, is there an ETA for this?   Thanks!

dvan by Cisco Employee
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Hi. We have interesting problem. We have Fortigate 3000D (intranet firewall),  and 2 C6500s, our backbone switch (vss), and 2 N7Ks( will be new backbone switch) devices. Fortigate 3000D connected to C6500 , and C6500 switchs connected to N7K.  We are...

alper.kus by Level 1
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I have a Cisco 3650 that it booting into ROMMON.  In ROMMON, when I run dir I am only seeing these:switch: dirxmodem[0]: (read-only)null[1]: (read-write)bs[3]: (read-only)tftp[12]: (read-write)usbflash0[13]: (read-write) So I run flash_init and it se...

Hello Team,  I want to know difference between different IOS realses for Cisco 3850. Like we have Cisco 16.x.x(with Gibraltar/Fuji/Everest/Denali) or even Cisco IOS 3.3.x.   Secondly how can I decide IOS upgrade path with the following info:-********...

DEV1389 by Level 1
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So I have made a few posts about our VSS issues , however after a rommon and OS upgrade the base issue still persists.We are now running on the "gold" release 3.08.08.E.152-4.E8.After a power down it takes around 9-10 minutes to reach SSOOnce SSO is ...

pwiscott by Level 1
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I have a strange problem.  I'm trying to upgrade the IOS on a C3750 & C3850 switches using Solarwinds TFTP server.  I can initiate the IOS to from the TFTP to the switch.  From the console:  It seems to run (displays !!!!!!!!!!!!!!!!!!...) then I get...

Long9zhen by Level 1
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Hi All,our backup server is connect with cisco 3750. that port is configued as Trunk VLAN100. for other sw to sw links we are using VLAN1 trunk. my question is trunk allows all vlan traffic to pass then why they have put vlan100 instead of vlan1  the...

reashad by Level 1
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I have server with 10GE connection to N2K switch. instead of configure as access port , can I configure as trunk port (dot1q) to carry multiple vlan over to server ? Most document stated N2k is pure host port , trunk port is not supportBut I got cust...

tckoon by Level 1
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Topology is a provider network with some managed switches where voice and data are separate; only 2 vlans total 1 for voice and 1 for data. Would like to connect an unmanaged switch to this environment to an access port on the managed switch with bot...

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