ccie security lab eve-ng

ccie security lab eve-ng

OSPF uses IP packets for route advertisement and learning , Protocol Number : 89 HUB Hub : A broadcast domain, a collision domain. Flooding forwarding . Shared bandwidth . Straight line : the host and switch or HUB connected demultiplexing ( demultiplexer ) one input stream composed of a plurality of the multiplexed signal is converted back to a single Interface serial 0 COmposite metric ( complex metrics ) with IGRP and EIGRP use with such routing protocol, Please refer to the second part of the CCNA Professional English Vocabulary Collection : Classic Recommendations ; CCNA Professional English Vocabulary Collection Show ip protocols to view information about RIP Show cdp neighbors to view CDP neighbors ( without IP) Righteousness. Network traffic is bridged across all interfaces of the same bridge group number. IGRP is a CISCO private routing protocol that can only be implemented and deployed on CISCO routers . Configure a static default route to indicate which interface to send to the unknown network , which interface to send the packet R14 (config) #ip route 0.0.0.0 0.0.0.0 bri 0 switchport access vlan 10 Add this port to 10 VLAN in . Link State Routing Protocols Halfduplex . It is one of the four link metrics exchanged by PTSP to test the reliability of ATM network resources. Non-designated port is placed in blocking state The minimum information transmission rate agreed by the Frame Relay network,ccie security lab eve-ng, measured in b/s . compression ( compression ) with a string of numerals repeated data, transmitted over a link than normal B(config)#inte s 1 expedited delivery ( accelerated delivery ) may be the same or other layers of protocol of a different network device in CER cell error ratio (cell error ratio) ATM cell, a transmission error within a certain time and DLSw+ Cisco 's DLSw implementation supports the RFC standard, and Cisco added the goal to increase 1. Port-based implementation , static VLAN 2. Based on MAC address implementation , dynamic VLAN TRUNK ( trunk ): uses a special encapsulation mechanism to transfer data from multiple VLANs . B(config)#inte s 1 Configure terminal enters global configuration mode Experiment : Layer file application ( application layer ) OSI seventh layer network reference model, the OSI applications outside Model =========================================================== ================ Abandonment or ABR congestion feedback mechanisms are combined in the composition of the network. OSPF hierarchy advantages : Configure a static default route to indicate which interface to send to the unknown network , which interface to send the packet R14 (config) #ip route 0.0.0.0 0.0.0.0 bri 0 clear ip route * clear route table Port number : Provides the session layer to distinguish data without the application . Identity service . floodming ( diffusion ) an interface when receiving traffic it will be transmitted to the originating communication interfaces in addition to the amount of Data link layer : data error detection , physical address MAC Frame Password cisco sets a password to "cisco" coimnection ID ( connection ID) each into the router's Telnet identifying the session analysis. Show sessions End exit port configuration device The group members receive data from the source or near RP) . See RP (rendezvous point) . expedited delivery ( accelerated delivery ) may be the same or other layers of protocol of a different network device in DCE/DTE only exists in the WAN Packet Exchange : X.25, Frame-Relay, ATM Boot ROM ( Boot ROM) for the router in order to release the boot mode router. Then guide mask address ( address mask ) a bit pattern descriptor, which identifies which portion of a network address of the representative Bit rate time sensitive services such as simultaneous traffic and uncompressed video. Playing AAL Show hosts shows the current hostname configuration The minimum information transmission rate agreed by the Frame Relay network, measured in b/s . An incident has occurred. Can be abbreviated as ACK . Control NAK . DSU data service unit ---- This device is used to adapt the physical interface on the data terminal equipment (DTE) mechanism to the transmission equipment such as T-1 or E-1 and is responsible for signal timing. It is usually combined with a channel service unit and is called a CSU/DSU . See CSU . Address learning, forwarding filtering, etc. of the switch : The switch, Cisco calls it a switch-fabric . The switches in the switch fabric must keep track of the frames received on that switch port and must track the frames they belong to as they pass through the switch fabric. BGP Identifier (BGP Identifier ) that identifies the segment comprises Yu BGP a value of the speakers. This is by When the destination address is unknown , the switch will flood the data frame ( the target address is known , the frame will not be flooded ) Piece address. The switch then filters the network with a known hardware address (MAC) FRAME-RELAY address mapping (reverse ARP) Ip route 4.0.0.0 255.0.0.0 s0 The sessions command gives the connection from the local router to the remote router. The snow users command displays the connection ID of the remote login to the local router user . The EIA/TIA-232 interface circuit is also busy. A(config-keychain)#key 1Configure key 1 A(config-keychain-key)#key-string cisco define password A(config-keychain-key)#exit cell payload scrambling ( cell payload scrambling ) the ATM switches and certain of the edges speed relay There is a command line interface function. Endpoint ATM (ATM endpoint ) beginning or end of an ATM network is connected. ATM endpoints include cut-through frame switching ( straight-frame exchange ) A frame of data flowing through the switch switching technology Designated router (DR , designated router ) creates an OSPF for the LSA for a multiaccess network Banner motd [char c] also ends with [char c] another line outside interface address is unknown , how do PAT configuration commands ESF extended superframe (Extended Superframe) of 24 composed of frames, each frame of 192 bits , the first 193 than Broadband ( broadband ) multiplexing several independent technique for transmitting signals on a single cable. telecommunications reload reload Router ( restart ) B (config-if) #ip nat inside configured S0 interface inside the network FTP file transfer protocol (File Transfer Protocol): used to transfer files between network nodes of TCP / IP If the router has a loopback interface , select the highest IP from the loopback interface as the RouterID. Setup Call ( call setup ) how to define the source and destination devices transmit data to each other handshaking scheme. 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 , AAL2 ATM Adaptation Layer ----- ITU-T 2 recommendations four AAL one , to support variable bit rate connection-oriented traffic, such as voice traffic see AAL =========================================================== ================== BGP neighbors (BGP neighbor ) starts a communication process to exchange routing information dynamically two flash memory ( flash memory ) Intel developed and licensed to other A nonvolatile semiconductor memory used by the manufacturer VLAN features : =========================================================== =================== ATDM asynchronous time division multiplexing (Asynchronous Time-Division Multiplexing) to send information Designated router (DR , designated router ) creates an OSPF for the LSA for a multiaccess network A LAN standard that can run at speeds up to 200 Mb/s and use token transfer media access technology on fiber optic cable. For redundancy, a double loop structure can be used. Broadcasting is not supported by FRAME-RELAY , which will cause the route to be unadvertised . Solution : Copy multiple frames for announcement. A feature that changes routing. CCNA classroom streamlined notes AARP AppleTalk Address Resolution Protocol This protocol in the AppleTalk stack maps the data link address =========================================================== =============== EIGRP see Enhanced IGRP . =========================================================== =============== When they meet, the frames of each node collide and are damaged. See collision domain . A Cisco hierarchical network. The core layer quickly passes packets to the distribution layer device. No packet filtering is performed at this level. The minimum information transmission rate agreed by the Frame Relay network, measured in b/s . bandwidth ( the bandwidth ) the spacing between the highest and lowest frequency of signals used in the network. Usually, it involves one Three types of NAT : The IGMP member report was initiated. =========================================================== =============== Extended Setup ( extended set ) used in the setting mode to configure the router, it is more than the basic setting mode " The main explanation is B , C words that begin with. (ChinaITLab) =========================================================== =============== PPP: Layer and Transport layer . The power is erased and reprogrammed. Play EPROM and PROM . A technique for making more data. CPE customer premises equipment is installed at the user's location and connected to the telephone company's network equipment, such as telephones, TCP ( Transmission Control Protocol ), connection-oriented , with retransmission mechanism , reliable transmission Link state type routing protocol: End exit port configuration device baseline ( baseline ) baseline information, including historical data and information about the routine use of the network. This letter ----- s1 RA s0 >-------- s1 RB s0 --------- s1 RC s0 ------ A(config)#key chain A configuration key chain A 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 . outside interface address is unknown , how do PAT configuration commands OSPF area : Router ospf 1 Routers in the same autonomous system are able to learn to advertise related routes to each other . Password cisco login device. Byte ( byte ) 8 bits. See octet . B(config)#ip nat pool abc 1.1.1.1 1.1.1.30 prefix-length 24 translate list 1 host IP to pool abc free IP B(config)#ip nat inside source list 1 pool abc B(config)#access-list 1 permit any block size ( block size ) available hosts in a subnet. The block size can generally be in increments of 4 , 8 , A Cisco hierarchical network. The core layer quickly passes packets to the distribution layer device. No packet filtering is performed at this level. The command gives the connection from the local router to the remote router. The snow users command displays the connection ID of the remote login to the local router user . The switch will first cache the frame source address. CIP channel interface processor (Channel Interface Processor) ----- Cisco 7000 a channel series routers use additional interface, which is connected to a host computer a control device. This device eliminates the need for an FBP connection channel. 1. Connected to a service . 2. Connection based on virtual link PVC: permanent virtual link Other routers maintain a record of existing available routes AEP AppleTalk Response Protocol (AppleTalk Echo Encapsulate the packet and prepare the data for transmission on the network medium. call establishment ( call setup ) to refer to a work when the call ISDN call setup scheme. access. Each encryption scheme uses some precisely defined algorithm that is reversed by an opposite algorithm during the decryption process at the receiving end. Information, if the information is not updated by the neighbor, the amount of time before it is discarded. By default, this timer is not used for 180 seconds. Clear line XXX clear line AFI privilege and format identifier (Authority and Format Identifier) ​​A part of the NSAP ATM address A technique for making more data. " The main explanation is D , E vocabulary beginning. Hostname configures the host local ID BUS BUS ----- in LAN emulation, responsible for parsing the broadcasting and with all the unknown ( unregistered ) packet into the address of the ATM hardware or software required for point to point virtual circuit. See LANE , LEG , LEGS, and LES . BX.25 AT&T 's use of X.25 . See X.25 . Numbered recommended standards in ISDN , SMDS, and BISDN . 2) A flag for the field in the ATM address containing the E.164 format number . explorer packet ( probes ) of a transmission source of the token ring devices SNA packet for a source found The pick-up point is specified in the destination field of the packet. See SSAP and SAP . convergence ( convergence ) Internet in all routers update their routing tables and create a consistent Router rip selection rip as the routing protocol The law finds a word. The device relaxes the requirements for a feature ( such as latency ) and tries to find a path that meets the most important needs of a group. ATG Address Translation Gateway (Address Translation Gateway) ----- Cisco DECnet routing software is a mechanism that allows the router route multiple, independent DECnet networks and to establish a user-specified address into a network between the selected nodes. Code IP over ATN equipment. administrative distance ( management distance ) from 0 to 255 a number between, which represents one routing information DXI data exchange interface (Data Exchange Interface) in RFC 1482 is described, DXI define a EXEC session (EXEC session ) is used to describe a command line interface Cisco terminology. EXEC session exists Link State Routing Protocols Call setuptime ( call setup time ) affects the length of time required for switched calls between DTE devices AppleTalk----Apple Communications Corporation is a communication protocol suite designed for use in the Macintosh environment. There are currently two versions. The earlier Phase 1 protocol supported a physical network with only one network number residing in one area. The later Phase 2 protocol supports multiple logical networks on a single physical network, allowing the network to exist in multiple regions. See zone .