Switching

I am trying to understand how to connect 5 switches using 0.5 M cables only.  I have read this "best practices" document, but it leaves some unanswered questions.http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-2960-x-series-switche...

We have a C4507R-E with Sup7 Card (slot 4) (WS-X45-SUP7-E) with ipbase license.  As the supervisor engine is hot swappable we are planning  to replace it with a newer one without outage by putting the new Sup7 Card to the free slot 3.  The new one (s...

Hi, is anyone aware of any quirks or special configurations required when connecting Intel 10GbE NICs to Nexus switches? We've run into a number of problems. Have I missed anything obvious? Details below.Setup no. 1: Nexus 4900M, two Dell R510 with d...

Hi, We have a bunch of 2960s switches of which some of them can't be upgraded to IOS 15.0(2). It compared the show version commands and the ones that can be upgraded haveModel revision number           : H0While the ones that can't be upgraded have:M...

Hi All I have a 3750X with SP Services software.  What I am seeing is the phone mac address is appearing on the data and voice vlan.  I have other switches 2960 and 3750 and it is not showing MAC address on both VLANs.  Any ideas?  The 3750X LAN base...

Best practise to change new SUP on 6509, currently we have dual sup. is it we need to power down the switch and install ne sup?

hello everyone,I've been trying to solve a problem for over a day regarding inter-vrf routing using MP-BGP and I can't seem to figure a few things out.I have Cisco 1921 which has VRF-JLAN and VRF-JGLOBE with 3 interfaces configured as (g0/0 = vrf JLA...

 I am looking for some feedback on an issue I am having connecting a host server to one of our nexus 2ks. L1 issue it appears.... The port I am attempting to connect to is amber in color. I connect in my server and no link. I have checked the port co...

No traffic received from the RSPAN monitoring port at 3750 to the required NIC of my Mynavoice recording server.what might be the issue?#Vlan951#Name recording_1999#remote span%%in all switchesSwitch 4507 where recorded phone connected>#Monitor sessi...

I have a strange situation with a 2960s.  After attempting to upgrade the IOS version to 150-2.SE4, the switch appears to load the image and boot normally, but then seems to fail and start over again to load the image (more slowly the second time).  ...

Hi, I need some help and it may seem a bit silly.I have a simple network design with 1 router, swtich and two pcs. I want to be able to test out out subnetting to see how it works. I am going to use a 10.0.0.0 network with 8 subnet bits. Subnet 1 wil...

 Hi I have different vlans spread out edge switches, recently i had issues with a specific vlan. some switchports that are assigned to this vlan stop working, they appear connected  ( green ) but don't respond to ping requests even with clients on th...

I am trying to find the new command fro radius-server source-ports 1645-1646 since it appears to be depricated.  We use tacacs so we do not have the radius server specified but we do need to put in the ports.  Can someone please tell me the new comma...