Switching

Hi, I have a spsific question about the funciton of root guard, that I can't checkit now on my own from some reason, so i it can be very helpfull if someone can answer me for this. I learned that the root guard put the port that it configured on it i...

i want to connect more than two switches and routers and to time synchronize them,the result of time synchronization should me display on any display panel. please tell how should i do.

is 100% loop free after apply loop guard?

I have a Cisco Nexus 3064 that I am using as part of a flat network for the Lab. I have 30 Virtualization Servers(MS HyperV and VMware vSphere) connected to this switch and I want to enable jumbo frames. The Virtualization Servers are able to ping th...

I am working with the Nexus 9372TX  and utilizing the QSFP-40G-SR4 40gig to 10gig optics.  The documentation of the code version 7.0(3)I4(6) defines using the interface breakout command to split the interface and define the 4 10gig sub interfaces.  I...

Hi, I have 2960-CG switch showing error loading flash switch:Switch:Error loading "flash:c2950-i6q4l2-mz.121-12c.EA1.bin" Interrupt within 5 seconds to abort boot process. Boot process failed...how can we fix it without format OS.& how can i hard r...

Hi, I'm using a Cisco Catalyst 4948 switch with 2 optical SFP modules GLC-SX-MMD. What I'm getting is strange: When connecting the both optical modules with a fiber, the link of both ports is OK. But if I connect the ports to an other devices, compa...

Hi. We have completed our rollout of over 100 L2 switches. All of them have the exact config - except the obvious e.g. ip address etc. We have a direct connection for testing purposes from our offices to the core switches in DC to access all switche...

Hello all, I have two ASR routers that I use for my edge router.  Each router has one connection each to the same ISP on different routers from the ISP.  Each router is set up as a router on a stick with seven sub interfaces.  Each interface is a di...

Hi guys, This is KJ. I'd like to get a helping hand from you. How can I set L3 mode on C6500 switch ? Actually, I tested vlans using C6509. There are a Line card and a supervisor in C6509. 2 vlans(vlan 10 and vlan 20) set in a line card(Port 1-10 vl...