Switching

So the last few hours I have been reading about the native VLAN on Cisco Switches and have found allot of contradicting \ misinformed opinions on the internet.   First of all  Clause 9 of the 1998 802.1Q standard defines Frames belonging to the nati...

Hi I've recently purchased a Cisco catalyst 2960S-24TS-L & setup 3 VLANS 10 (no current IP),20 (192.168.2.1) and 30 (192.168.3.1) to reflect the router VLAN configuration & ip information. When conntecing my PC to the switch to test connectivity on (...

I am reading through a QOS Document and they want me to trust the DSCP value from an IP phone (Siemens) but untrust the PC DSCP value.  How can I trust one thing but not the other?Any ideas?I am using a 2960 Cisco switch with IP base IOS.Thank you

Hello,I have two 2960S-48TS-L stacked together.  The Slave switch is normal, but the Master switch has the 4 SFP ports and Fa0 port orange LED from power on, as well, the USB and console ports are both green.  Otherwise, the switch works nominally.  ...

Hello - I have a Cisco 881 W router connected on port fa4 (WAN) to my cable ISP. Behind that (LAN side) I have created a VLAN 50 on port fa1 that runs to a Watchguard (XTM 2 series) to the External port. From there things are running smoothly as I ha...

Hi, about to install first UC320w and wanted some sample 800 series router configurations showing required port fowarding, ACL entries and QoS examples.Thanks.

Hi,I got 10 Catalaysts 3750 (all of them identical) and I got tthe IOS Update. Anyway I only have service contract for 4 of them. Am I allowed to update all of them? Or only the four devices which have the service contract?Thanks for your help!best r...

Hi everyone,I am preparing for my CCNA, while I am working GNS3 or the real routers or switches some commands are not applied. I did some researches online and found it is the IOS versions that I am using. so can any one give me a brief description f...

Hi all, I'm a bit new to the world of smart switches, so this is likely something very simple I'm overlooking.I have a SG200-50 switch. When I assign it a management IP of 192.168.0.2, I can access it just fine for a certain amount of time. But if I ...

Hey everyone,I just purchased the CCNA network  simulator but I can't log in when I run the program.  It's the CCNA  640-802 Network Simulator software 2nd edition. I have a cisco press  login and password which specifically says you need (see screen...

I am unable to access a series of switches connected together through a management vlan.  I receive the message "The server xx.xx.xx.xx at level_15_access requires a username and password."  Entering the username and password fails and the same usern...

Afternoon,We are currently deploying a new VMWare Environment utilising an HP C Class Blade Chassis, Virtual Connect 10GbE modules, BL680 blades with Flex10 NICs, Nexus 1000V virtual switch and Nexus 5010 switches.i.e.Nexus 5010 -> HP VC 10GbE -> Fle...

We need to give TCP 3389 & 3399 priority over all other traffic between a Cisco 1941 and 2951.What is needed to do this?