Switching

Hi All, I faced a case with switch high CPU usage, around 70 %. Case had solved after I issued "ip multicast-routing"  command. The following is the background. There are about 10 SVI interface with "ip pim sparse-dense-mode" on this switch (Core). ...

I have a question on if the Native VLAN needs to be allowed on the trunk port?  Below is an example:switch Avlan 310 name MAN!vlan 333 name NATIVEinterface Port-channel2 description * MAN EtherChannel * switchport trunk encapsulation dot1q switchport...

I built a stack of two WS-C2960X-48TD-L and upgraded them to c2960x-universalk9-mz.152-2.E6.bin, which would get stuck during boot at some Point after loading the Image. Then I tried c2960x-universalk9-mz.152-4.E4.bin which worked for one of the swi...

Hi, I knew this but totally got about this for a moment. I will very appreciate if you can remind me. If I look at the mac address table, the ports says 'Router' (BOLD). What does that mean? xx-2#sh ip arp 10.18.30.35Protocol Address Age (min) Har...

I have two networks that need to be able to pass multicast traffic. There is a network in between that will not participate in multicast. Is there a way for two nodes to forward multicast traffic over unicast between each other to accomplish this? I ...

Hi,I have 2 questions about it:1.-  I can't save a customized config file (let's name it my-config) onto nvram. I mean, I try to execute the command:  "copy running-config nvram:my-config" and it prompts %Error copying nvram:my-config (Invalid argume...

We are planning to replace our Cisco7206-VXR-NPEG2 with cisco3650. I would like to know if it is good idea. 7206 is being used only for layer3 routing and one access list with couple hundred entries. One interface of router is connected to ISP and an...

Hi All, We are facing lot of apipa issues in our LAN network. Below are the details: 1.DHCP server is working fine. Other desktops/laptops are picking up valid IPs in the same VLAN. 2. DHCP is in different subnet. 3.Have checked configuration from s...

Hi there,  This is my first time here.  I have a new 2960-X 48 port swtich, and i am trying to do the first time config. on it. I have a cable plugged into the console port and am using putty to connect to it. When the switch starts i see the followi...

Having some issues with multicast traffic. We use a basic informa-cast paging server with our voip environment. The paging has stopped working for one branch site. As I was taking a look at some basic multicast troubleshooting. Here are some things I...

If i enable portfast on port 3 then STP will disable on port 3 or still this port can send or receive BPDUs?

Hello, I wonder about configuring the console interface of the Cisco layer 2 switch for telnet or ssh purposes. thanks in advance