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Hi Network Engrs,I've always wanted to ask you this question. Based from the table below         I pick one. Class A subnet 255.255.255.0 has 65536 effective subnets, while Class B 255.255.255.0 has 256 subnets.So, how did it come up with these numbe...

Hi,we get network issues, if one of our employees build a loop on a desktop switch in his/her office.My test enviroment looks like this.Switch A is a Cisco 4500 with SUP7 and IOS Version 03.03.00.SG. Switch B is an unconfigured Netgear GS108T Desktop...

Hi guys,Do you know why when upgrading a switch IOS via ftp, sometimes there is a folder created in the flash for the new firmware automatically, and sometimes dont.I just transfered a .bin file to the new switch and noticed it was copied on the root...

Jagan1976 by Level 1
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  • 9 replies
  • 0 Helpful votes

Hello, i'm having issues getting various model switches to sync with a newly built NTP (Win2008) server with Atomic clock attached to it. The software for the clock is set to stratum 1. I know the clock is syncronising and the server is showing the c...

Walsby1983 by Level 1
  • 7278 Views
  • 18 replies
  • 0 Helpful votes

Hi Everyone,Just received a couple of Nexus 7Ks, need to update the OS on them.Kind of interested in which OS would be the best fit, saw release notes that for new deployments they recommend latest release of 6.1, although from o ther sources I read ...

Dear all, Would it be possible to have an OTV SITE-VLAN between 2 authorotive edge device, to travers a Fabric Path domain? Current test seems to fail site adjancency between AED OTV device over internal link, using Site-Vlan crossing a Fabric Path d...

wim.juste by Level 1
  • 668 Views
  • 1 replies
  • 0 Helpful votes

Is it advisable to update to the 15.2.1E1 IOS for these devices or should I stay on 12.2(58)SE2 and 12.2(55)SE3 IOS?  I know 15.0.2 had issues.  Also, I have two 3750E-48TD switches that are on IOS 15.0(1)SE or SE2.  Should I go ahead an update them?

cpremo by Level 1
  • 365 Views
  • 1 replies
  • 0 Helpful votes

hello we have a 3750 cisco switch , need to built a setup with 2 vlans vlan 10 with subnet 172.16.20.0/24  gateway ip address is 172.16.20.1 which is on firewall which is connected to uplink port eth 1/1 on 3750vlan 20 10.10.10.0/24  with gateway 10....

I have two Cisco 3750E switches that are stacked. I am replacing these switches with 2 stacked Cisco 2960X switches. All the switches are 48 ports and the 2960's have a different IOS version.Is it possible to import the configuration from the 3750 to...

akhang001 by Level 1
  • 293 Views
  • 1 replies
  • 0 Helpful votes

Hello AllIP SEC tunnel configuration required with these below mention parameters.create a secure, industry standard ipsec config for the ipsec tunnels- include all parameters including tunnel encryption, authentication, integrity and key exchangeReg...

anil703 by Level 1
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  • 1 replies
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