Other Network Architecture Subjects

Guys, I would like to have more over view to the following:- 1- what is the exact functionality of (DR/BDR) on ospf tobology. 2- what is the point of using (auto-summary) command on eigrp, and when we should use it? 3- also I am alittle bit confused ...

Does each port have a MAC address of its own.If yes How can I see the mac address of a port on 2950 switchThanks

If I have say 2 subinterfaces on my router, vlan 200 and vlan 300, will say the pc's in vlan 1 automatically be able to see these as they will be using the normal interface fa 0/0 ?

My company is looking to peer to two different ISPs, currently we have a private BGP AS number, Can we keep our private AS number of we have to order a public AS number in order to peer to two different ISP's?

Hi all,these 2 sites are connected with fiber-optic through 2950G-xl-en switches. Same vlans (1-11) being configured on both switches. I also configured vlan trunk on port gi0/1 on both switches. The command is "switchport mode trunk". No encapsulati...

We recently upgraded an 831 router to IOS 12.3(14)T5. I consoled into the router via my PC/Hyperterminal to tftp the startup config. I copied the startup to the router via tftp, reloaded the router and even before I could get to the logon prompt, I...

Added VLANs to vlan database. Created separate VLAN i/f for voice (vlan12) and data (vlan7)on 2800 w/ip addresses.[sh ip int brief]: vlan 7 is up&up, vlan12 is up&down.On fa0/0/1:interface FastEthernet0/1/0 switchport access vlan 7 switchport voice ...

two switches are connected with each other, trunk port status is up but I Cannot ping & telnet the switch, but sometime when i restart the switch it start to work again but soon i start to face this problem

I was wondering if the above router is suitable to be part of a ccnp lab. All comments and suggestions are welcome!

Can someone direct me to a detailed doc on the 4500 line card architecture?I want to drill down to the ASIC architecture. Plenty on the 6500's but I can't find anything regarding 4500's.

Hi, I understand that fallback bridging can be used to connect two Vlans when routing isn't possible. However, as an exercise is it possible to provide fallback bridging for IP ?I have been trying for over an hour now and cannot get my end user PC's...

If I am using subinterfaces, do I need to put an ip address on my fast ethernet interface, or can I go without, what is the normal practice ?thanks