Question: What is the difference between router and L3 switching apart from WAN interfaces? Answer: Routers were devices that connected the LAN to the WAN and switches were just LAN devices and you may add a layer 3 switch,for example WS-C3750X-48P-S...
Question: i am studying DTP topic and came across this scenario that needs to be clarified. afaik, initially, trunk can only be formed on negotiated link (DTP) between two switches if VTP domain is the same. http://www.cisco.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080094c52.shtml...
The following tip is similar to the one on the Router IOS image transfer. It is highly recommended that you are familiar with Router IOS image transfer procedure (including the troubleshooting) before attempting Switch IOS image transfer, especially when...
Question: When I tried some textbook ACL to block pings or telnet from a certain source, the ACL not only blocked pings or telnet from that IP address, but also blocked itself from ping or telnet into that IP address. It's out of my expectation that ACL...
Initially, in a new switch like WS-C2960-24TC-L Default VLAN=Native VLAN=VLAN 1 But, as controlling traffic like CDP(Cisco Discovery Protocol: To find out connected devices), VTP, PAgP traverse over VLAN 1 Cisco recommends to change Native VLAN from VLAN...
Question: so i have 3 switches. switch A connected to switch B and B connected to C. Switch A is a vtp server vtp version 2 Switch B is a VTP Transpernt mode Version 2 Switch C is a VTP Client mode version 2 all connections are trunking no pruning involved,...
Question: I'm a bit confused about a detail in the switch adresses learning process: Switch WS-C2960S-24TS-L has an empty bridging table. Has 2 PC's connected PC1 sends a PING to PC2 (so A learns PC1 MAC) As switch A doesn't know PS2, it floods the packet....
Question: so i have read different things every were does the local vlan model use 80/20 or 20/80? i think it is 20/80 so the is 20 %local 80 % external but i have read different answers every were :S Answer: Recall from your CCNP switch book, there are...
Question: I seem to need some help in vlans. I am getting little confused. If I have got it right, the behaviour of access port is: - Tag untagged frames passing it inbound (from the connected host). - Allow frames holding the default vlan tag to pass...
Question: Yesterday a friend of mine was having some issues in his office network & tried my hand at resolving them. While I was SSHed to his 2960, I was surprised to see 2 SVIs as 'up' & 'up'. In fact, I created another SVI & that came up as well. I...
