Archives for CostiSer.Ro

List of articles:

2019-10-08

MACsec over WAN

Stats: 2272 words

Reading time: 10 minutes

Reading ease: 88.48

2017-03-07

SDN Lesson #2 – Introducing Faucet as an OpenFlow Controller

Stats: 2842 words

Reading time: 12 minutes

Reading ease: 61.80

2016-08-13

Quiz #25 – Troubleshooting IPsec Authentication Headers (AH)

Stats: 2175 words

Reading time: 9 minutes

Reading ease: 117.14

2016-08-01

MACsec Implementation on Linux

Stats: 1909 words

Reading time: 8 minutes

Reading ease: 75.60

2016-07-11

Performance Review of Overlay Tunnels with Open vSwitch

Stats: 2050 words

Reading time: 9 minutes

Reading ease: 85.16

2016-07-07

Overlay Tunneling with Open vSwitch - GRETAP, VXLAN, Geneve, GREoIPsec

Stats: 1443 words

Reading time: 6 minutes

Reading ease: 68.77

2016-06-26

My SDN Testbed

Stats: 2174 words

Reading time: 9 minutes

Reading ease: 73.10

2016-02-04

Website Reborn and Migrated to Pelican

Stats: 481 words

Reading time: 2 minutes

Reading ease: 77.19

2016-01-19

What is the broadcast address in IPv6 ?

Stats: 61 words

Reading time: 1 minutes

Reading ease: 66.15

2016-01-11

How many penalty points does a BGP route get for each flap, when Route Dampening is enabled ?

Stats: 41 words

Reading time: 1 minutes

Reading ease: 60.90

2016-01-08

How do two adjacent routers know that they have a two-way OSPF communication ?

Stats: 75 words

Reading time: 1 minutes

Reading ease: 71.62

2016-01-05

How many bits does the VLAN ID have in the 802.1Q header ?

Stats: 28 words

Reading time: 1 minutes

Reading ease: 108.03

2016-01-04

How does Path MTU Discovery (PMTUD) work ?

Stats: 60 words

Reading time: 1 minutes

Reading ease: 67.82

2014-12-03

OSPF Default-Information Originate – Side Effects of ALWAYS keyword

Stats: 1147 words

Reading time: 5 minutes

Reading ease: 90.87

2014-08-07

SDN Lesson #1 – Introduction to Mininet

Stats: 1627 words

Reading time: 7 minutes

Reading ease: 59.83

2014-06-02

QoS Pre-Classify - Where to Apply the Service Policy ?

Stats: 848 words

Reading time: 4 minutes

Reading ease: 57.47

2014-05-10

Quiz #24 – OSPF Default-Information Originate Always

Stats: 598 words

Reading time: 3 minutes

Reading ease: 87.61

2014-04-22

How do ACLs handle fragments ?

Stats: 2002 words

Reading time: 9 minutes

Reading ease: 82.81

2014-04-07

Quiz #23 – QoS on IPsec Tunnels

Stats: 471 words

Reading time: 2 minutes

Reading ease: 71.58

2014-03-27

Pre-bestpath Cost Community – What is it?

Stats: 1912 words

Reading time: 8 minutes

Reading ease: 73.28

2014-02-13

How Can MSTP Configuration Changes Impact Your Network

Stats: 883 words

Reading time: 4 minutes

Reading ease: 68.37

2014-02-03

Quiz #22 – Policy Based Routing (PBR) Problem or Not ?

Stats: 428 words

Reading time: 2 minutes

Reading ease: 66.62

2014-01-25

How Could MTU affect BGP Sessions ?

Stats: 2117 words

Reading time: 9 minutes

Reading ease: 84.95

2014-01-08

TOP 5 Most Commented Quizzes in 2013

Stats: 627 words

Reading time: 3 minutes

Reading ease: 69.29

2013-11-29

Quiz #21 – EIGRP as CE-PE

Stats: 891 words

Reading time: 4 minutes

Reading ease: 84.37

2013-11-21

Cisco vs. Juniper – Advertising Inactive Routes into BGP

Stats: 853 words

Reading time: 4 minutes

Reading ease: 69.48

2013-10-26

Quiz #20 – NAT between Two Partner Companies

Stats: 244 words

Reading time: 1 minutes

Reading ease: 72.42

2013-10-19

BGP – Suppress-Inactive and Next-Hop Matches

Stats: 1065 words

Reading time: 5 minutes

Reading ease: 81.24

2013-10-04

Quiz #19 – Short Network Cuts with MSTP

Stats: 154 words

Reading time: 1 minutes

Reading ease: 73.00

2013-09-13

RIP – Auto Summarization and Impact on Discontiguous Networks

Stats: 1309 words

Reading time: 6 minutes

Reading ease: 75.05

2013-09-13

RIP – Basic Configuration on Juniper

Stats: 876 words

Reading time: 4 minutes

Reading ease: 96.98

2013-08-28

Quiz #18 – Cisco vs. Juniper - Filtering ICMP between BGP Peers

Stats: 202 words

Reading time: 1 minutes

Reading ease: 52.32

2013-08-19

Redistributing Internal BGP (iBGP) into an IGP – why is it dangerous ?

Stats: 1265 words

Reading time: 6 minutes

Reading ease: 84.90

2013-08-11

Quiz #17 – Cisco vs. Juniper - BGP Advertisements

Stats: 111 words

Reading time: 1 minutes

Reading ease: 66.87

2013-08-07

Frame Relay – Understanding Static and Dynamic Mappings

Stats: 1158 words

Reading time: 5 minutes

Reading ease: 68.43

2013-08-01

Quiz #16 – BGP Filtering Updates

Stats: 221 words

Reading time: 1 minutes

Reading ease: 95.58

2013-06-03

Quiz #15 – RIPv2 Problems after Link Failure

Stats: 330 words

Reading time: 2 minutes

Reading ease: 66.81

2013-05-26

OSPF – Understanding the Forwarding Address (FA)

Stats: 807 words

Reading time: 4 minutes

Reading ease: 74.51

2013-05-23

Quiz #14 – Default Originate into OSPF

Stats: 272 words

Reading time: 2 minutes

Reading ease: 87.84

2013-05-12

NAT – Order of Operation

Stats: 490 words

Reading time: 2 minutes

Reading ease: 81.61

2013-04-27

Quiz #13 – Frame Relay self pinging

Stats: 454 words

Reading time: 2 minutes

Reading ease: 90.10

2013-04-15

OSPF on PE-CE Links and the Understanding the Down Bit

Stats: 1401 words

Reading time: 6 minutes

Reading ease: 79.74

2013-04-04

Quiz #12 – OSPF Improper Path Selection

Stats: 256 words

Reading time: 2 minutes

Reading ease: 92.58

2013-03-31

Protecting the BGP Session with MD5 Authentication

Stats: 744 words

Reading time: 3 minutes

Reading ease: 50.46

2013-03-27

Quiz #11 – NAT both Source and Destination

Stats: 298 words

Reading time: 2 minutes

Reading ease: 75.20

2013-03-23

MPLS LDP-IGP Synchronization

Stats: 1406 words

Reading time: 6 minutes

Reading ease: 86.39

2013-03-17

Quiz #10 – OSPF on CE-PE links

Stats: 281 words

Reading time: 2 minutes

Reading ease: 83.44

2013-03-14

Catalyst MLS QOS - part I

Stats: 748 words

Reading time: 3 minutes

Reading ease: 59.83

2013-02-20

Quiz #9 – BGP peering over a Cisco ASA

Stats: 240 words

Reading time: 1 minutes

Reading ease: 90.38

2013-02-17

Recursive Routing with Tunnels - study case: GRE over IPsec

Stats: 767 words

Reading time: 4 minutes

Reading ease: 55.35

2013-02-13

Quiz #8 – MPLS: inside Provider's Core

Stats: 222 words

Reading time: 1 minutes

Reading ease: 85.94

2013-02-10

Quiz #7 – MLS QOS

Stats: 261 words

Reading time: 2 minutes

Reading ease: 59.72

2013-02-07

OSPF – P-bit Setting in Type-7 LSAs

Stats: 1007 words

Reading time: 5 minutes

Reading ease: 101.09

2013-02-03

Quiz #6 – Routing protocols over IPsec

Stats: 324 words

Reading time: 2 minutes

Reading ease: 93.71

2013-02-02

EBGP Peering Not Established over a Default Route

Stats: 744 words

Reading time: 3 minutes

Reading ease: 88.67

2013-01-29

Quiz #5 – OSPFv3 Default Route into a NSSA Area

Stats: 274 words

Reading time: 2 minutes

Reading ease: 109.59

2013-01-26

NAT – Port Forwarding in Both Directions

Stats: 959 words

Reading time: 4 minutes

Reading ease: 106.81

2013-01-22

Quiz #4 – BGP over ISP

Stats: 293 words

Reading time: 2 minutes

Reading ease: 89.72

2013-01-19

Quiz #3 – NAT port redirection from inside to outside

Stats: 201 words

Reading time: 1 minutes

Reading ease: 67.68

2013-01-10

OSPF – Redistribution between different ospf processes

Stats: 1295 words

Reading time: 6 minutes

Reading ease: 80.31

2013-01-06

MSTP – Inside a Region

Stats: 555 words

Reading time: 3 minutes

Reading ease: 83.91

2012-12-30

Quiz #2 – OSPF Redistribution between different processes

Stats: 275 words

Reading time: 2 minutes

Reading ease: 103.81

2012-12-27

Quiz #1 – MSTP

Stats: 247 words

Reading time: 1 minutes

Reading ease: 81.61

2012-05-27

Auto-RP and usage of "ip pim autorp listener"

Stats: 557 words

Reading time: 3 minutes

Reading ease: 79.24

2011-06-27

ACLs Supported on 3560&3750 Switches– Part II (VLAN Maps)

Stats: 114 words

Reading time: 1 minutes

Reading ease: 75.35

2011-06-26

ACLs Supported on 3560 & 3750 Switches - Part I (Port ACL & Router ACL)

Stats: 455 words

Reading time: 2 minutes

Reading ease: 85.79

2011-05-27

OSPF on CE-PE links

Stats: 814 words

Reading time: 4 minutes

Reading ease: 60.87

2011-05-23

Difference for PORTFAST & BPDUFILTER used globally or at interface-level

Stats: 262 words

Reading time: 2 minutes

Reading ease: 54.46

2011-05-16

Matching packets based on their size

Stats: 492 words

Reading time: 2 minutes

Reading ease: 74.78