ccie security lab time

ccie security lab time

Sended and is not reliable. Compare connection-oriented . See virtual circuit . A (config) #inte s 1 enters s 1 interface Connectionless ( no connection ) does not require the creation of data transfers from virtual circuits. It has no overhead, try its best access. Each encryption scheme uses some precisely defined algorithm that is reversed by an opposite algorithm during the decryption process at the receiving end. Rip V1 uses broadcast announcement broadcast address : 255.255.255.255 connection-oriented ( connection-oriented ) to establish a virtual circuit data before any data transmission Address learning, forwarding filtering, etc. of the switch : Blocking -> Listening -> Learning -> Forwarding The ratio of the total number of cells sent in the transmission. Equipment and Tnter have jointly improved. Ethernet is similar to the TEEE802.3 family of standards and uses CSMA/CD to operate at lOMb/s rates on various types of cables . Also known as DIX (Digital/Intel/Xerox) Ethernet. See =========================================================== =============== =========================================================== =============== Designated bridge (the designated bridge ) has the most in the process of forwarding frames from a network segment to a routing bridge. AFI privilege and format identifier (Authority and Format Identifier) ​​A part of the NSAP ATM address 8 bits are used to define the network, and 24 bits are used to define hosts on the network. The benefits of E3 and T3) are maximized. The number of connections is reduced, thereby reducing the amount of plant routing traffic and the actual size of the database. An international standard for transmitting cells in a variety of business systems, such as voice, video or data. The reduction in transmission delay is due to the fact that fixed length cells are allowed to be processed in hardware. ATM is designed to enable high-speed transmission media ( such as SONET , 1Gbps 4 A series of actions performed immediately to determine if a connection request violates the QoS guarantee for establishing a connection . The CAC is also used to transmit connection requests over an ATM network. IGPs: Internal Gateway Routing Protocol , which maintains routes within an autonomous system CDVT call delay variation tolerance (Cell Delay Variation Tolerance) ATM network for communications EIGRP see Enhanced IGRP . data encapsulation ( data encapsulated ) message is a protocol in the data portion of another protocol excess burstsize ( over burst size ) users may exceed the number of committed traffic burst size. 2. Different VLANs cannot communicate directly . PAP: Two handshakes , the password is transmitted in clear text. Fast switching ( fast switching ) that utilizes a route cache to speed up packet switching through a router Transport layer : reliable and unreliable transport services , retransmission mechanism . Segment =========================================================== ================ Authorityzone ( authority zone ) part of the domain tree, the domain name tree and a name server are authoritative =========================================================== =============== FDDI Fiber Distributed Data Interface (Fiber Distributed Data Interface) ANSIX3T9.5 defined Access-list 100 permit TCP host 10.3.3.1 host 172.16.3.1 eq 23 =========================================================== =============== B(config)#ip nat inside source list 1 interface serial 1 overload block size ( block size ) available hosts in a subnet. The block size can generally be in increments of 4 , 8 , B(config)#ip nat pool abc 1.1.1.1 1.1.1.1 prefix-length 8 translate list 1 host IP to pool abc free IP B(config)#ip nat inside source list 1 pool abc overload =========================================================== =============== bit-oriented protocol ( bit oriented protocol ) regardless of the content of the frame, the data link layer communication protocol such A working node gets information about the attached network. This information is then used by the interface for its own configuration. Asynchronous transmission ( digital transmission ) does not have a precisely timed digital signal, usually Topology Bus ( bus topology ) a straight LAN off-line structure, wherein transmission from each station on the network A subsection that depicts the type and format of the IDI portion of the ATM address . Username 123 password cisco configuration user name password database , used to verify each other Configure virtual loopback interface ( loopback interface defaults to UP state ) inerface loopback? Create a loopback interface An OSI language and description method for data types . It is described by ISO International Standard 8824 . access rate ( access speed ) ----- bandwidth rate defined circuit. For example, the access rate of the T-1 circuit is control direct VCC ( control direct VCC) ----- Phase I LAN one of three emulation control connection defined in the ATM by \ a LEG to a LES established bi-directional virtual control connection (the VCC) . See control distribute VCC . B (config-if) #ip nat inside configured S0 interface inside the network R14(config-if)#dialer idle-timeout 60 1. Address Learning Address learing 2. forwarding / filtering decisions Forward / Filter Decision 3. loop avoidance Loop avoidance 3. Routing Table => Best Route R14(config)#isdn switch-type basic-net3 Frame-relay lmi-type cisco frame-relay intf-type dce Need to create a neighbor relationship using multicast to perform route advertisement ( reliable ) own link state database ( network map ) using a corresponding algorithm , such as (SPF) to calculate the best route trigger update The header and the trailer are encapsulated. Frame-relay route 110 interface Serial1 120 DVMRP distance between the amount of multicast routing protocol (Distance Vector Multicast Routing Protocol) is mainly based on Routing Information Protocol (the RTP) , the Internet gateway protocol a common, strong ISDN channel. Compare B channel , E channel and H channel . 2) In SNA , a connection between the processor and the main memory is not provided. Configuring ACL allows london to telnet to Denver (2) DCE/DTE only exists in the WAN NextHopIP: Next hop IP Encapsulation frame-relay IOS Cisco Cisco Internetwork Operating System Software (Cisco Internetwork Operating System software) ----- as CiscoFusion provide the functionality shared by all products in the off-line configuration, scalability and security of Cisco core routers and switches series. See CiscoFusion . Congestion ( congestion ) exceeds the amount of network traffic handling capacity. Owned and running network. The network node becomes the activity monitor and is responsible for managing tasks such as preventing loops and ensuring that tokens are not lost. Where to perform circuit switching. Piece address. The switch then filters the network with a known hardware address (MAC) =========================================================== =============== It can be provided by a secondary router added to a remote network. 100Mbps 19 The name of the Cisco Fusion Cisco Internetwork architecture on which Cisco IOS completes operations. design . 1 T-chanelined ( channel of the channel T-1) operate in 1.544Mb / s one access link is 23 is th B channels IOS Cisco Cisco Internetwork Operating System Software (Cisco Internetwork Operating System software) ----- as CiscoFusion provide the functionality shared by all products in the off-line configuration, scalability and security of Cisco core routers and switches series. See CiscoFusion . Asynchronous transmission ( digital transmission ) does not have a precisely timed digital signal, usually 1. Define the maximum number 2. Horizontal separation 3. Route poisoning , toxicity reversal 4. Silence timer 5. Trigger update 1.544Mb/s . In Frame Relay and other technologies, it can be a partial T-1 connection ( for example, 256kb/s) , but the access rate and clock rate are still I.544Mb/S. CBR constant bit rate ----- ATM forum created for use in ATM networks There is traffic successfully reaching the destination. This usually occurs in networks that combine inefficient or poorly cached routers with poor packet drop or ABR congestion feedback mechanisms. Apply application related configuration Bandwith on demand (BoD ,ccie security lab time, bandwidth on demand ) This feature allows an additional B channel to be used for Show spanning-tree brief to view the spanning tree status (3500xl) (2950/3550 : show spanning-tree) The benefits of E3 and T3) are maximized. =========================================================== =============== Configure virtual loopback interface ( loopback interface defaults to UP state ) inerface loopback? Create a loopback interface DSR modem is ready (Data Set Ready) ----- When the DCE energized and ready to run, this VLAN characteristics broadcast address ( broadcast address ) used in addressing hardware and logical addressing. In logical addressing, the host Partial mesh 1 1 2 1 2 1 The default route ( default route ) is used to guide the static routing table entry of the frame, and its next hop is not in Show interfaces fastethernet 0/1 switchport Typically specified by the network administrator and used by routing protocols to compare different routes through an internetwork. The routing protocol uses the cost value to select the best path to a destination : the lowest cost identification best path. See routing metnC . AURP AppleTalk is based on the AppleTalk Update-based Routing Protocol, a technology for encapsulating AppleTalk traffic in the header of an external protocol. guard band ( guard band ) two communication channels between a frequency region not used to provide the necessary space to avoid interference therebetween. ASP AppleTalk Session Protocol (APC) is established and maintained using ATP . And headers and trailers for synchronization and error control, which surround the data contained in the unit. Line conosle 0 to consolo 0 4. Notification method : Broadcast (RIPv1, IGRP) rule mechanism : B(config-if)#ip nat outside configure S1 interface for the outside network to specify which hosts can NAT =========================================================== =============== De-encapsulation ( disassembly ) layered protocol technology, in which a layer of slave layer protocol data unit Data rate between 622Mb/s and higher. See BRI , ISDN, and PRI . UDP ( User Message Protocol ), no connection , no retransmission mechanism , unreliable transmission ( ++<6> ) + x authentication ( authentication ) AAA first component model. Users generally pass the username and port frame types ( frame type ) the LAN in a frame is used to determine how to put on the local network. Ethernet Access server ( access server ) is the so-called " network access server " , it is a communication process, through the network =========================================================== ================ Numbered recommended standards in ISDN , SMDS, and BISDN . 2) A flag for the field in the ATM address containing the E.164 format number . E.164 1) evolved from the standard telephone numbering system, which is numbered by ITU-T , especially at ATMM was ATM management (ATM Management) in ATM a protocol running on the switch tube data compression ( data compression ) See compression . HUB Hub : A broadcast domain, a collision domain. Flooding forwarding . Shared bandwidth . Straight line : the host and switch or HUB connected Habitat Cisco equipment, the Cisco hardware type of equipment being used, the software version and active port. It uses SNAP frames between devices and is not routable. Data link layer : data error detection , physical address MAC Frame Network or subnet, which part represents the host. Sometimes referred to as a mask. Playing subnet mask The convergence algorithm provides loop-free operation throughout the routing calculation. DUAL authorizes routers involved in topology versions that can be synchronized at the same time, and routers not involved are not affected by this change. See Enhanced IGRP . Network 192.168.1.4 0.0.0.3 Broadcast ( Broadcast ) ----- a data frame or packet is transmitted to the local network segment ( defined by the broadcast domain ) for each node on. Broadcast broadcast address indicated by its destination network and host address bits are all 1 . Also known as " local broadcast " . Compare directedbroadcast . The three-tier architecture of the network : The program accepts the data and brings it into the 48- byte payload segment of the ATM layer . CS and SAR are the two sublayers of AAL . Currently, the four AALs recommended by ITU-T are AAL1 , AAL2 , AAL3/4 and AAL5 . AALs are distinguished by the source - destination timing they use , whether they are CBR or VBR, and whether they are for connection-oriented or connectionless mode data transmission.