acronymsAcronyms are words that consist of the first letter of each word in a term or phrase. For example, HTML is an acronym for Hypertext Markup Language. Acronyms should be used in identifiers only if they are widely recognized and understood by the public. Acronyms are different from abbreviations because abbreviations are abbreviations for a word. For example, theID is an abbreviation for identifier . Typically, the library name should not use a
utcthis Commit Would replace or remove the entire running configuration. Thisoperation can be service affecting. wish to proceed? [No]: Y//Type Y to confirm, default is not processed RP/0/0/CPU0:SEP 7 15:13:59.185:ospfv3[1024]:%routing-ospfv3-5-adjchg:process, NBR 11.1.1 .1 on GIGABITETHERNET0/0/0/2 from full to down, Neighbor down:interface down or detached rp/0/0/cpu0:sep 7 15:13:59.185 : ospfv3[1024]:%routing-ospfv3-5-adjchg:process, Nbr 33.1.1.1 on gigabitethernet0/0/0/0 from full to down,
Technorati Tags: ccie,isp, operator, Isis,is-is1, area, AreaThe OSPF area----0, the backbone area. 1, non-backbone area.In Isis, the area is no longer determined by number.--isis allows the entire routing domain to be divided into multiple zones.-- A router currently has a maximum of 254 area IDs. Configure different zone IDs for smooth zone merging, segmentatio
Huawei's configuration:
As shown in the following illustration, for the purpose of understanding the IP address (C class address/30 mask) that is used to make the host name connected between them.
The blue area is Area1, the green area is Area2, and they are in ISIS's agreement. R7 and R8 are also doing ISIS, but not to R3 and R6 (R3 and R7, R6 and R8 to run EBGP between them)
The following command: 0 0 means never time out, no matter when the in
identifiers.For all public members, types, and namespace names composed of multiple words, use Pascal case.
Note that this rule does not apply to instance fields. Public instance fields should not be used because of the detailed description in the member design guidelines.Use case-insensitive mixing for parameter names.
The following table summarizes the upper and lower case rules of identifiers and provides examples of different types of identifiers.
Identifier
Case sensitivity
Typename
Attribute
Pascal
Backcolor
Uppercase/lowercase rules for acronyms
An acronym is a word that consists of the first letters of each word in a term or phrase. For example, HTML is the abbreviation of hypertext markup language. Acronyms should be used in identifiers only when the public is widely aware and understood. The acronym is different from the
support new computer network protocols. The new features simplify network devices and operations, and the upgrade will not be so troublesome when OSPFv3 is used.
(2) The difference between IS-ISv6 and IS-ISv4
Another connection status Protocol widely used by carriers is isforipv6. We know that isis is a standard routing protocol (ISO/IEC10589) that was originally used to support dynamic protocols of CLNS networks. Because the design of
metric 10000 100 255 1 1500 re-distributing RIP without the AS or process number, when the time is re-allocated to IGRP and ospf, the bandwidth is: bandwidth delay reliability loading mturouter (config) # router ospf 2 router (config-Router) # redistribute isis level-2 subnets resdistributing ISIS only L2 routes. When it is sent to OSPF, use the SUBNETS parameter to redistribute subnets in the classificati
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Cornell's K. Birman (the originator of virtual synchronization)History of Virtual Synchrony ReplicationThis article describes the development history of Virtual Synchrony. Based on this article, the core documents of Virtual synchronization are sorted out as follows:
• J.M. Chang, N.F. Maxemchuck, "Reliable broadcast protocols", ACM Trans. on. Computer Systems 2 (3), Aug. 1984, pp. 251-273• F. cristian, H. aghali, R. strong and D. dolev, "Atomic Broadcast: From Simple Message Diffusion to Byzant
There are many network protocols, such as isis, rip, ospf, and bgp. In large companies, network devices often run multiple network protocols, if no configuration is required between various network protocols, no information can be exchanged between devices. In this case, the routing redistribution technology appears, the purpose of Route redistribution is to achieve collaboration among multiple routing protocols. Routing redistribution principle: by a
address 2009:1212::1 is a multicast addressMTU is bytesICMP error Messages limited to one every millisecondsICMP redirects is enabled//enable ICMP redirectionND Dad is enabled, number of dad attempts:1//nd (neighbor detection) and duplicate address detection startND reachable time is 30000 millisecondsND advertised reachable time is 0 milliseconds//(neighbor detection) up toND advertised retransmit interval is 0 millisecondsND Router Advertisements is sent every secondsND Router advertisements
AWK application-Retrieval of informationThe awk program can be used to retrieve information from the database, which is actually various types of text files. The better the structure of a text file, the easier it is to work, even though the result is simply a line of independent words.The following acronym list is a simple database.$CatAcronymsBASIC Beginner ' s AI i-purpose Symbol IC instruction codecics Customer Information Control systemcobol Commo
NET design Specifications: conventions, idioms and patterns ——— naming conventions Foreword: Recently in the ". NET design Specifications: conventions, idioms and patterns of the book, mainly speaking. NET design specifications, before this piece is not particularly concerned about, recently want to put these systems to learn, the following is basically a reading notes it. Chapter III Naming specifications 3.1 casing conventionsUse the appropriate casing to make the identifiers of types, members
; } Fieldset,img { border:0; } Address,caption,cite,code,dfn,em,strong,th,var { font-weight:normal; Font-style:normal; } Ol,ul { List-style:none; } caption,th { Text-align:left; } H1,h2,h3,h4,h5,h6 { font-weight:normal; font-size:100%; } Q:before,q:after { content:; } abbr,acronym {border:0; }
OK, I believe you have already understood the purpose of CSS reset, perhaps you can also according to their own preferences, write a CSS reset system
Is-is neighbors cannot establish the following troubleshooting:
Network environment
The Is-is routing protocol is run between two NE80, and a Ip-trunk interface is connected through the transmission via 3 2.5G POS interface. Ip-trunk link status is up, two NE80 devices can ping each other, but cannot establish is-is neighbor relationship.
Fault analysis
There may be several reasons for this
Is-is configuration is inconsistent on step 12 devices.
Step 22 device versions are inco
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