Switching

I'm not sure of the best way to do this. I have one 3750 and two WS-C2960-48TC-L. Not 2960-S so no flexstack module. I was originally supposed to be getting 4 fiber runs from the 3750 to the 2960s. Two to each switch. I was going to create an aggrega...

I am wondering if in a Nexus 5K switch, with 2K FEX attached, if you have devices in the same VLAN on the 2K, when these devices begin communicating, sending traffic to each other, would there be any traffic through the 5K? Or, would everything be co...

We have a new site coming online connected to our core network. The site is 4 miles away and we have dark fiber. We are connecting dual 10Gb links and are using 10g-lr-s sfps. The core has 6509s and the site is using 3850s. There is an Lc-Lc fiber pa...

Hello,I have to routers in a lab connected with a serial cable.When I want to use hdlc as encapsulation, I just have to configure a ip address and the no shutwon command because hdlc is default.On the DCE side, what I can check with "show controllers...

Hi, I have CISCO 2960 two switches, now I did teaming in server after that I connected one patch cable to one switch and another patch cable to another switch, the following image will shows you how the connectivity was, can I do like this Regards,Th...

I need to gather some conversational data -- src/dst IP and port -- on several switches thought-out a large network for about a 1 week span. Since netflow isn't supported on the 3750/3750x platform without additional hardware, what other options do I...

Dear TeamWhen our system upgrade IOS of router 2921 with c2900-universalk9-mz.SPA.150-1.M3.bin to c2900-universalk9-mz.SPA.154-3.M2.We can not use telnet service !Please check in attach file, please explain help me ?Thank you 

Been a part of this network for several years.  It started flat, as we've grown we've added more VLANs for VoIP, Storage, vMotion etc.  All the while, we've had our users and servers on VLAN1.  I now have the task of migrating us away from VLAN1.  I'...

Hi,We are trying to decide if we should use Catalyst 3750 or 4948 to do switching and routing in a data centre.Previously some reasons for buying 4948 have been redundant power supplies and non-blocking switches.Now with the new Catalyst 3750-X comin...

I have a 3750 switch with two 48-port switches connected via stacking cable.  On these switches I have two VLANS: VLAN100 for data,  and VLAN300 for Desktop VTCs (dVTCs).  I configured the switch with VLAN 100 having an ip address.I have verified:-IP...

Hi,I have 2 4500X-16SPF+ and i want to use VSS but i'm asking if the management of port is the same than a StackWise.For exemple, can I manage 32 ports or just 16 ? Does it works like Teen 1/0/1-16 and Teen 2/0/1-16 ?Thx

I am new to WCCP and I am having trouble getting the Sophos Web Appliance to Connect to a 6509e port channel. The Web app is on a VM host and the host is connected to the 6509 by two interfaces on a port channel.Here are the wccp parts of the config:...

Hi, everyone.  Was hoping to get some advice and assistance regarding two issues with a brand new SG300-10MP our company recently bought.1.  I've been having difficulty getting a proper trunk port to work on this, as compared to the Cisco Catalyst 29...