Switching

We are using Intervlan routing and no routing protocols. All departments sit on their own VLAN. Our core router is a WS-C4500x-32 that handles all routing for our environment. I am having huge trouble successfully constructing an VACL to allow hosts ...

Thanks in advance for your help. I'm an amateur. I've attached a picture of my current network. Don't mind the poorly made diagram. I don't know what I'm doing.  My issue is that Server 1 can access the internet and Server 2 and other hosts (not pict...

Tenemos en una obra la necesidad de comunicar varios switches IE 3000 8TC, para los cuáles tenemos comprados SFPs del código GLC-FE-100LX-RGD, con un switch Catalyst WS-C3850, para el cual tenemos SFPs del código GLC-LH-SM. La fibra del canal es mono...

Hi, Pls tell me how to copy C3850 IOS Software image to tftp for future ios recovery. C3850 default configuration is install mode to boot packages.conf. SW3850S-01#sh verCisco IOS Software, IOS-XE Software, Catalyst L3 Switch Software (CAT3K_CAA-UNIV...

I am looking at UPS units for some of our IDF closets, I like the more efficient simulated sine wave version UPs, but seems like they occasionally do have issue with some devices. I do not see why it would matter in most cases though because the PSU ...

When trying to add me new 3750-X to the Cisco Network Assistant I get:Unsupported Device Type: WS-C3750X-24 Cannot add device x.x.x.x to communityHas anybody else seen this? If it truly is unsupported by CNA why do they say that it is on the product ...

Hi   I'm trying to replicate a client’s parent/child domain in a test environment – I’m assuming (I don’t know for sure their exact setup) that they will have enterprise level networking setup, so potentially layer 2 workgroup switches with routers d...

  Hi.I have an L3 switch with ospf connected to two DNS servers. Each DNS server propagates an IP listener by OSPF. I understand, that OSPF having routes of equal cost, should balance the load by default, but this is not happening. So, how do I confi...

I have configured a port-channel between two switches and it is currently working. I need to add the following commands: spanning-tree bpduguard disable spanning-tree portfast disable   When I add it to the port-channel it does reflect on the interfa...

I am struggling with this setup. The goal is easy: i have a remote site connected with VPN to the main office. The VPN router of the remote site is sitting behind the provider modem/router on the inside, on a private subnet 10.10.10.0/24, so the IPSE...

I have a 4431 router. G0/0 has subinterfaces (g0/0.1ip 10.10.10.0, .2  ip 10.10.20.0, etc.) for routing internal LAN subnets as this port connects to a switch  and all communicates fine. G0/1 has no configs or IPs as of now and connects to Inside por...

I have a question...   I have environment that has a Voice VLAN already DHCP scope is configured with option 66 pointing to TFTP server e.g: 10.28.2.20 and Avaya phone are running.  We need to put cisco phone on the same vlan.  So i configured DHCP s...

Just some background info first. I used to install Edgewater routers on the network edge to do traffic shaping both upstream & downstream for voice. The affects of configuring traffic shaping on the Edgewater device from a workstation on the LAN pers...

Hi,  I am seeing consistently across all my 3850 access switches that the io memory is very low. Is this a software bug or is it normal? Even when we upgraded to a new IOS version it did not change.    3850-SW# sh mem                     Head        ...