Private VLANs Commonly used in SP networks to put users in common subnet but no direct forwarding of packets between customers in same VLAN. Enforce security by forcing traffic to go through router instead of switched locally. There are three
Ethernet – notes
RJ 45 pinouts 10-BASE-T and 100BASE-TX uses pairs two and three, gigabit Ethernet uses all four pairs. Pinout for straight cable: 1-1;2-2;3-3;6-6 Pinout for crossover cable: 1-3;2-6;3-1;6-2 A standard PC transmits on pair one and two and receives on three
Cisco CCIE Routing & Switching 350-001 v4.0 Practice Exam
Bought this product from Boson today in preparation for the written exam. I’m going to read through the certification guide one more time and practice the questions from Boson. After that it’s time to take the written. I’m aiming for
Quality of Service – notes
Hardware queue Packets can be sent trough hardware queue without interrupting CPU Always uses FIFO logic Cannot be affected by IOS queuing tools Class Based Weighted Fair Queing Every class (queue) gets a defined percentage/amount of bandwidth If a class
IPv6 – notes
Addresses are 128 bits long Separated with colons every 16 bits Address separated in prefix and interface id, most common is /64 Leading zeroes can be omitted from address and double colon may be used to represent Successive zeroes, may
MPLS – notes
First defined in RFC 2547 Originally called tag switching and was Cisco proprietary MPLS is the open standard Operates at layer 2.5 between switching and routing Terms used in MPLS: LER = Label Edge Router – MPLS capable, placed at
150 hours done
I’m finishing up on MPLS, will be finished in a day or two and then I will put up some notes. I reached 150 hours today. Written exam is about two or three months away I think before I am
Starting MPLS
Finished BGP yesterday and I’m now moving on to MPLS. I have read the certification guide and now I’m going to read MPLS and VPN architectures by Pepelnjak.
Border Gateway Protocol (BGP) – notes
Uses TCP as transport, port 179 Path vector protocol Checks before becoming a neighbor The TCP connection request must come from an IP associated with a neighbor command The AS number must match that in the neighbore statement The routers
BGP almost done
I’m 3/4 done with Halabis book Internet routing architectures. It’s one of the best books out there and a recommended read for ayone wanting to learn some serious BGP. When done with BGP I will probably move on to MPLS.