Switching

Hi, I'm evaluating some LAN design proposals and am seeing two distinct designs emerge. The switches are to be located across a pair of comms cabinets.Some designs propose a single (6 x 3750X) stack split across the two cabs. Others propose a pair of...

I have a monitor session process set up to forward data from 4 ports to a single output port. I am surprised to see that on the output port, the rate of output drops is steadily increasing:  Input queue: 0/75/0/0 (size/max/drops/flushes); Total outpu...

Hello everyone,First post here, so please excuse any n00b mistakes...I have a 4507(WS-C4507R) as my core switch running ver. 12.1(19r)EW, multiple VLANs and ports configured in different modes, etc.I'm replacing this switch with another 4507(WS-C4507...

HiI have a new Cisco 6506-E chassis with VS-SUP720 3C and am trying to get it onto Adv IP Services SXJ6.  When setting the bootvar to either disk0 or bootdisk (to try and rule out media issues) I get:Self extracting the image... [OK]*** TLB (Load/Fet...

I have been replicating the configuration from our old router (2621), to a 3945 ISR. One thing that I can't quite understand is the sub-interface.My main network (Network 1) is 172.16.100.0 255.255.255.0gi 0/0 is 172.16.100.1 255.255.255.0gi0/1 has n...

Since VLAN 1 is the "default" vlan, does it get passed in a trunk even though VLAN 1 has been disabled on the switch?Again VLAN 1 being the "default" vlan, does it get passed even though it is not on the vlan allowed list?    

                   We currently have a wireless link between some of our sites that appears as a multi-point mesh to the network even though it is physically a point-to-point network. We are looking to provide a backup link for this mesh using a diff...

Hello,How will switch handle a frame destined for MAC address that is being learned of two ports?          

Hi All, My concern is that if we have three switches connected in triangular fashion and flex link feature is used only on one switch then do we see any layer 2 issues?For example if we consider this topology :If all the links above are configured as...

I have many 3560 access layer switch spread across the campus.  Over the past few weeks, my Cisco Prime LMS server has alerted me at random times the management ip address of various switches is down.  I have confirmed from my system that I cannot re...

dear all,i have problem in my cisco 3750when i tagged ports the avaya phone worksbut when i add ports in vlan voice directly the phone not worked please help me, an thank you.

Hi !I am currently managing the IT of a Hotel that uses Cisco 2950 switches and a backbone Cisco Catalyst 3550 to provide wired Internet to Guest Rooms.Each Guest room uses one port of the Cisco 2950 switch and it is set up as a VLAN (for example roo...

Each time ESXi is powered on, either on a gigabyte switch or on a FastEthernet Switch ... I have packet drop. Have a look at the picture so see what I mean.Here's the scenario:Cable Modem ----> 2821 Gi0/0 -----> 3550 Gi0/0----Port-Channel 1          ...