Switching

3945 is running c3900e-universalk9-mz.SPA.151-4.M23560e is running c3560e-universalk9-mz.150-1.SEI've got brand new 3945's with onboard 16-port 3560e switches.  On the first power up I see that there are several new vlans added that appear to be defa...

Hi, I have N7k (NX-OS 6.2(2)) with SUP1, M1 and F1 linecards. I need to export netflow for traffic in VLAN 30 and I configured bridged netflow. Config is: flow exporter NF_EXP destination 10.10.101.11 transport udp 9993 source Vlan101 version 9 flow ...

In Cisco C2960X, CPU utilization is going to >90%  Current Switch IOS version is 15.2(2)E.

Hello. We have 3 sites with SIP server in one office and VoIP phones with internal numbers in other two. We've got a little problem with Asterisk server in our local network. Company, who set it up, says, that we need 5060 and 10000-20000 ports forwa...

I am trying to setup intervlan routing with 2 vlans on a 3550 switch.I have done the standard commands:enabled ip routing setup vlan interfaces w/ ip add & netmasksmade sure all end devices have the right IP, netmask and gateway pointing to vlan inte...

Hello, I've got a 2950 trunked to a 3750 in my network.  The computers connected to the 2950 are able to pass traffic to the rest of the network over the trunk and vice versa, but I am unable to ping the 2950's SVI over the trunk.  When I bring the ...

I have a Cisco WS-CE520-8PC-K9 that goes through initial setup just fine all the way until the SYS LED is solid green but as soon as I connect it to my router with any of the 8 ports the AMBER led is solid and I can't log into the switch in any way. ...

HI - Try to implement MacSec manual mode between 2 x c3850 as shown below. Topology: c3850-G1/1/1 ---macsec-- c3850-G1/1/1 interface GigabitEthernet1/1/1 switchport access vlan 123 switchport mode access cts manual sap pmk 123 mode-list gcm-encrypt T...

HelloI'm trying to get IP Source Guard working on a cisco Instant Access client switch (parent switch ios is s2t54-ipservicesk9-mz.SPA.152-1.SY1a.bin) DHCP snooping is enabled and I can see the binding ok but when I enable "ip verify source vlan dhcp...

We had an issue where an inter vlan data transfer crashed the network. Our rotuing is being done on a pair of 4506s which serve as our core with a mix of HSRP and VRRP. We initiated a data transfer from a host on vlan 110 (subnet 10.100.110.0/24) t...

Hello Cisco Support Community, I am currently studying for my CCENT exam, and have a question that I haven't been able to find the answer to quite yet. Do each host within a VLAN connect with a physical link to the switch's interface?  Or is this int...