Switching

Hi,We want to do Static DHCP reservations for some lab equipment in our network. I think the traditional CLI way to do them is by creating single-member DHCP pools: Conf tip dhcp pool host_x.x.x.xhost x.x.x.x /24client-identifier 01xx.xxxx.xxxx.xx An...

Mahdi,The previous problems were attached to multiple already closed/Solved threads and have been fixed. This is a new issue, therefore a new conversation should be started. Since you seem unable to start one yourself, I have done it for you. The new...

i have 2 box cisco 3850 with same series and same software version (typical), these switch operating in stack switching mode. i plug some SFP module in both of them, but when i take look in show inventory command, i see the SFP module only detected i...

I am new in Ironport management.   Last 12 hour i am getting the following warning   Potential Directory Harvest Attack detected.  See the system mail logs for more information about this attack.   Version: 11.1.0-128 Serial Number: 564DA1C84C7E64303...

What is the significance/impact of using switchport protected in Trunk ports that connect two switches? For eg.SW1int gi0/1-->Access VLAN 10-->switchport protected-->Host Aint gi0/24-->Switchport mode Trunk-->switchport protected (des link to SW2)***...

Hi AllI got some issues with STP. I got MST running on switch1 and PVST on switch2. Switch1 -> ISP -> Switch2 -> RouterI configured VLAN922 on switch1 as SVI and added to trunk port that connects to ISP.  In switch2 vlan922 is Layer2, as Layer3 is in...

Hello everyone!We have configured DHCP snooping on one of our switches. All works fine, clients are able to get IP addresses, I can see the bindings table. However, what bothers me, is that there are lots of dropped packets in statisticsPackets Forwa...

Hello,I can't find the meaning of the dot in front of a line in the log buffer :Oct 26 18:30:25: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan11, changed state to down .Oct 26 18:30:25: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan11, c...

Does anyone know where I can get Visio stencils for a Cisco SX550X-16FT?

I know nexus 7000 base on multi stage crossbar fabric design  , does this mean multi stage cross bar is a CLOS fabric architecture design, there many small crossbar fabric on i/o  module and fabric card, and connect by CLOS structure ,and inside fabr...

There is a bug with EIGRP with control plane ICMP traffic . ICMP traffic is not working from 2960XR from one particular subnet . It started working after I removed the eigrp neighbor from the switch.As a workaround, we have blocked the route and traf...