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Labels: ospf ccie learning notes CCIE Study Notes-OSPFArea area-ID default-cost Set the default route overhead to broadcast to stub, total stub, and NSSA on the ABR or ASBR. The default value is 1. Router OSPF 1 Area 1 default-cost 10Area area-id nssa no-redistribution Connect the NSSA region to the ABR of area 0. Do not allow this ABR to publish the route re-published to this ABR to NSSA, but only to area

Self-taught CCIE route protocol troubleshooting 01. What protocol does RIP transmit information and what mechanism is used to calculate the optimal route? RIP updates route information based on UDP port 520 using the BELLMEN-FORD algorithm. The basic principle is to follow the minimum hop count principle. Therefore, the route table path is not necessarily the optimal path. 02. In a non-broadcast environment, what commands can be used to send and recei

Problems that should be paid attention to when configuring OSPF Experiment (CCIE-LAB) 1 When configuring NBMA in FR, You need to manually specify the neighbor on the center point, write the ip ospf pri 0 to ensure that the center is DR. 2. If you can PING yourself, you only need to configure your MAP on the vro. 3. There are two types of authentication: link authentication and regional authentication. The configuration command is similar, except that

routecodes:l-Local, c-connected, S-static, R-rip, M-mobile, B-bgpnbs P NBSP;D-EIGRP, ex-eigrp external, O-OSPF, IA-OSPF Inter area NBSP;N1-OSPF NSS A external Type 1, N2-OSPF NSSA external type 2 NBSP;E1-OSPF external type 1, E2-OSPF external Type 2 i-is-is, Su-is-is Summary, L1-is-is level-1, L2-is-is level-2 ia-is-is Inter area, *-candidate default, U-per-user static route NBSP;O-ODR, P-peri Odic downloaded static route, H-NHRP, l-lisp a-application route NBSP ; +-Replicated r

Configuration Filter-listRotuer (Config-router) #Neighbor Ip-address Filter-list As-path-filter in/outUsing regular expression matching| : Represents or, | The two ends match any one[]: denotes one within the range, [1234] [1-4]. : Represents any one character [1-3]. [A]---213 and 3 spaces 3^: Indicates the start of a string$: Represents the end of a string_: Represents any delimiter (cannot represent a number)(): Represents a combination in which the result of the combination is then involved

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/27/56/wKiom1Nx2b6wI8BpAALoUdZoJJQ877.jpg "title=" 5.13. JPG "alt=" wkiom1nx2b6wi8bpaaloudzojjq877.jpg "/>"What skills can I learn from this course?"Through this video you can learn all the configuration of the iOS XR system for the most important device of the Cisco SP CCIE Exam and help you pass SP CCIE certification successfully. This course cover

Information location: http://www.china-ccie.com/ccie/lilun/igp/igp.htmlThrough the analysis can be learned that the reason for the suboptimal path is: (OSPF ad value is less than RIP) (in fact, the use of two-way redistribution, resulting in a more complex network, the generation of suboptimal path, this thing really no other way to use.) ）Since router R1 in the RIP Zone distributes the external route 100.1.1.0 into the RIP, R2 again distributes 100.1

I. Source of information: Now CCIE Security Lab are all V4, but did not find the relevant books on the Internet, can only see the V3, honestly said that the translation of people is not very good, but did not find the corresponding English version available for downloading, can only make up to see. A.pdf Book http://file1.51cto.com/?mod=getCoden=6055rB+G69I9PUJvRigTCTGq5NUL+ bjura06su1iviizjyvnnlvzbkamtqcrphrkl2r4e1bkz+evgqi+ Cplbv3afit04uskh2az3lb

require that all the items in this question are correct, and only the score is given. If one option is incorrect, no score is obtained. You must correct all the options to get the score. Do not give up selecting multiple questions, because it will be very difficult to Pass the case. Let's look in the best direction. If we get 70 points for 100 points, we will Pass the case. You can make a mistake by 30 points. It is very easy! CCIE Routing Switching

processing, When sending, check the As_path, if you have the as number and the peer as number, then change to their as number. as_pathip as-path access-list 1 Permit _2$ Allow source to route IP as-path access-list 2 Permit ^2$ Federation (Federation): 64512-6553 5BGP Confederation identifier as BGP Confederation Peer0 as number community attribute Local-as only one asno-advertise pass No-export Transmit only one public as requires neighbor BGP neighbor address send-community Mate aa:nn Pass

:609px;height:241px; "alt=" Wkiol1bvrxcbxo-xaaalwupei_k660.jpg "/>Any anycast does not have a dedicated address segment, which is used in unicast addresses (aggregatable global unicast, local site address, unique site address)650) this.width=650; "src=" http://s1.51cto.com/wyfs02/M00/7D/C4/wKioL1bvr16CGh7kAACNU3HCIWE860.jpg "title=" 3333. JPG "width=" "height=" 364 "border=" 0 "hspace=" 0 "vspace=" 0 "style=" width:600px;height:364px; "alt=" Wkiol1bvr16cgh7kaacnu3hciwe860.jpg "/>650) this.width=

CCIE Study NotesTo declare a default route to the OSPF domain: 1. Use ipdefault-network: 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M02/45/C2/wKioL1Pq4nOQ6YakAADtETgZiec877.jpg "Title =" image001.png "alt =" wkiol1pq4noq6yakaadtetgziec877.jpg "/> Key configurations of R2: IP Route 2.0.0.0255.0.0.0 null 0 // create a primary network in the routing table Router VPN 1 Network2.0.0.0 // declare the primary network Ipdefault-network 2.0.0.0

 I. Definition of redistribution Route redistribution refers to the ability of border routers linked to different routing selection domains to exchange and advertise route selection information between different Autonomous Systems. 650) this. width =

Optional delivery-BGP Communities is a marker for routing entries to ensure continuity of routing filtering and selection-BGP routers can community the routing entries when redistribution, sending, and receiving routing updates (ROUTE-MAP)-Depending