Month – August 2013

Problems when running IGP IBGP encounter:BGP routing updates only the best entries

BGP recently doing exercises,Do the following topology when encountered some problems,This topology is

I configured the network segment:

among them


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OSPF link regional accreditation and certification (Port Authentication) difference

In the configuration in OSPF,There are portions of the content certification,OSPF authentication is divided into two,They are

  • Based authentication area
  • Based authentication link (port)

The same time,Authentication mode can also be divided into two,One is plain text authentication,Another is the MD5 encrypted authentication。

Here we do not discuss OSPF encryption method,It is simply illustrative ofRegional links and similarities and differences between these two types of authentication。[……]

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OC: Optical Carrier Optical Carrier

OC standard fiber cable is commonly used in today's networks set of standards,Readily not hurt to look at memory。

Optical Carrier (OC) is determined at a level many SONET fiber optic network of a group of signal bandwidth。It is usually expressed as OC-n,among them,n is a multiplication factor,It indicates basic rate is 51.84 Mbit / s the number of times。Currently defined standards:
OC-1 — 51.8 4on[……]

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