Cisco Network Technology

To setup logging on your Cisco switch is pretty straight forward, you enable logging, you tell it what to log and then were to send it. Most Cisco devices use the syslog protocol to manage system logs and alerts. But unlike their PC and server counterparts,...

Question: If there are two ip addresses like 192.168.32.x and 192.168.33.x enabled in WS-C3560X-24T-S(x is any valid digit) with subnet mask of say 28 how to know if they are in the same network or not? Please i want a general answer & the above is just...

Question: In blocking state switch ports will only listen BPDUs but not forward BPDUs. If yes then how this switch is receiving BPDUs from other switches since other switch ports will also be in "disable" state so they can not send BPDUs. I heard that...

Question: I am trying to master the STP convergence process in my cisco WS-C2960S-24TS-L , but I have a few questions related to the design in the picture I attached. So if the switch1's root port goes down, I understand it will send inferior BPDU's to...

Question: I have a cisco eigrp CISCO2921/K9 route,But I wonder how a route to Null0 works in EIGRP? Answer: A null interface is basically a trash, whatever you send to a nullinterface is the same as dropping the traffic. Okey so why when I perform route...

Question: can someone please explain to me in short what is the meaning of ip route 0.0.0.0 0.0.0.0 null0 Answer: The Null0 "interface" is a virtual bit-bucket. Meaning it's a trash can to route things to. There's automatically a Null0 route (called a...

Question: This seems like a simple concept but I'm having a hard time grasping which traffic is tagged vs that which is not tagged. We have a network of primarily 3750 switches with several VLANs, and dot1q trunks setup between the switch stacks. I've...

Question: In Lab , I have used two Cisco WS-C3750X-24T-L Switches. I have created two vlans Vlan2 and Vlan 3 on first Switch. I have created two SVI on first switch and assign Ip address 10.10.20.1/24 and 10.10.30.1/24 respectively. Host between two Vlan...

Upgrading IOS on Cisco routers and switches is hightly recommendable because of the following reasons Incorporate new features: Unless an update is simply a bug fix, every new release of the Cisco IOS includes new features. Upgrading your routers and...

Question: I need some guidance in VTP Configuration in cisco WS-C3560X-48T-L, 1. How I can delete VTP Domain name without removing vlan.dat . 2. What is the path for vtp configuration fil and can we save it separetely 3. Can VTP 3 and VTP 2 are compatible...