Switching

ip dhcp snooping database flash:dhcpb.txtip dhcp snooping interface GigabitEthernet1/0/27 channel-group 1 mode active ip dhcp snooping trust!interface GigabitEthernet1/0/28 channel-group 1 mode active ip dhcp snooping trust! interface Port-channel1 d...

I want a core switch with following specifications : 12 port 10 gig fiber switch12 port 1 gig fiber switch 8 port 1 gig LAN switch  Can someone help me with which switch shall I choose, or stack in order to fulfil the above requirements. 

I recently came across a setup that I haven't seen before. Basically, the L3 switch is the gateway for the user LAN. We'll say that address is 10.1.1.1/24. From there traffic is sent to a router. Here is the odd part (from my perspective).....the rou...

Hi, I have this switch (SF200-48P) and I'm trying to configure an host under the dns settings. I've correctly added the host but I can't resolve from the classic ping test. This is my current configuration.   What I have to do?? I've tried to set the...

Hi all, We’re looking at 3.6.4, 3.6.6, and Denali-16.3.2.Mainly need a stable network to support normal L2 switching, and 802.1x/ISE.If we can also get ERSPAN, that would be a plus, but not a requirement.3.6.4 is listed as the recommended version in ...

Hi I am trying to use a common VLAN between the built in layer 3 ports and a 4 x GE NIM. The reason being is that I require the use of the fibre port due to distance and the copper ports as there are a few devices connecting directly.  My config is ...

I have a client using the management port on the 5672 for peer connectivity to the other 5672 and they sync over this connection.  We have interface vlan 90 setup and we can login with that ip.  When I turn up interface vlan 110, we lose connectivity...

Hi, For a research project, we are searching for a suitable 40 Gbps L2 switch. Nexus 5624Q is one of the candidates. We haven't any experience with Cisco products. My question is that is it possible to limit bandwidth based on mac addresses? In our c...

Hi everyone, i am reading through the Implementing Cisco IP Switch Networks (Switch), i came across this statement "In this example, the core layer interconnects with a data center and edge distribution module to interconnect WAN, remote access, and ...

Hi all, I'm no Cisco/network engineer, so I'm going on suspicion and wild speculation here, but I have an issue with an 887VA router I'm working on that is maybe to do which VLAN a router elects as its default? Basically on my router, I shutdown VL...