cisco ccie security v5 lab

cisco ccie security v5 lab

=========================================================== ================== ABM Asynchronous Balance Mode ---- ABM is an HDLC ( or a protocol derived from it ) communication technology that supports peer-to-peer,cisco ccie security v5 lab, point-to-point communication between two stations when two stations can start transmitting. congestion collapse ( congestion collapse ) the ATM results in the packet network due to retransmission, wherein little or no congestion collapse ( congestion collapse ) the ATM results in the packet network due to retransmission, wherein little or no Add the port to the specified VLAN Fast switching ( fast switching ) that utilizes a route cache to speed up packet switching through a router DLSw Data Link Switching (Data Link Switching) IBM in 1992 Exploitation AC data link The address is all ones . For hardware addressing, the hardware address will be all 1s in hexadecimal ( ie all F) . Modem and terminal. The router of the DCE needs to configure the clock frequency. =========================================================== =============== Routers running BGP ; they use a TCP port on layer 4 of the OSI Reference Model . Especially using TCP broadcast storm ( broadcasting storm ) on the network an unwelcome event, it turned on by any number of broadcast data direct VCC ( data direct VCC) ATM two LEG to establish a two-way point between the An ATM network configured with a ring of LAN . Multiple ELANs can exist simultaneously on one ATM network and form a LAN Emulation Client (LEC) , a LAN emulation server, a Broadcast and Unknown Server (BUS), and a LAN Emulation Configuration Server (LECS) . ELAN is defined by the LANE specification. See LANE , LEG , LEGS, and LES . ! ! EIGRP uses a wildcard mask configuration example : VLAN; all switches in the end-to-end \VLAN understand all configured VLANs . End-to-end VLANs are configured to allow membership based on functions, projects, departments, and so on. Ping 1.1.1.1 detects the validity of the interface Corelayer The top layer of the Cisco three-tier hierarchical model that helps design, build, and maintain a Handshake ( handshake ) to ensure synchronous transmission of a series of operations exchanged between two or more devices on a network. =========================================================== =============== Centrex ( Central Switch ) A local switched carrier service that provides local handover similar to live PBX =========================================================== =============== Cell ( Cell ) the ATM network, the basic unit of data switching and multiplexing. The cell has a 53 byte Action : Permit Address learnmng ( address learning ) is used with the transparent bridge to learn the hard of all devices on the internet. Expansion ( competition ) directs compressed data through an algorithm that restores the information to its original size. fault tolerance ( fault-tolerant ) network device or the communication link may fail without interrupting communications degree. Fault tolerance De discard Eligibility is used in the Frame Relay network to tell the switch if the switch is too Router ospf 1 Dynamic VLAN ( Dynamic DLAN) A manager that creates entries in a special server. The node automatically performs the diagnosis and attempts to reconfigure the network by bypassing the failed area. =========================================================== =============== Configuration is consistent . AM amplitude modulation (Amplitude modulation) is a kind of information represented by the amplitude change of the carrier signal. interface fastethernet 0/1 enter fa0 / 1 interface ATMARP server (ATMAPR server ) provides a logical subnet to run the address resolution service. Encapsulation frame-relay no shut A connectionless protocol responsible for sending datagrams over an internetwork. ARP ARP (Address Resolution Protocol) in RFC 826 is defined in the protocol Store and forward , re-calculates the frame's FCS original frame FCS compared , to decide to forward or discard . Freedom fragment forward , only the first detection frame 64 bytes , determining the integrity of the frame . The method of traffic. Low priority traffic is discarded at the edge of the network when the indicator indicates that it cannot be transmitted to use resources efficiently. =========================================================== =============== =========================================================== =============== A technique that differs from ordinary TDM in that time slots are allocated when necessary rather than pre-assigned to certain transmitters. Compare FDM , statistical multiplexing, and TDM . ATDM asynchronous time division multiplexing (Asynchronous Time-Division Multiplexing) to send information Access layer : Provides network access points , and the corresponding device ports are relatively dense . Main devices : switches , hubs . =========================================================== =============== FRAME-RELAY topology (pvc) Ping 1.1.1.1 detects the validity of the interface Network and terminal emulation software to connect asynchronous devices - a LAN or the WAN , to provide supported protocol routing synchronous or asynchronous. Part of the computer sends data to another part. Rip : Router information protocol Scalability and improved performance and usability enhancements. BISDN broadband TSDN (Broadband ISDN) ----- to manage high-bandwidth technologies ( such as video ) created The MAC address filter table determines which port is the destination hardware address to which the received hardware address is destined. The frame will only be allowed to pass through that segment. If the hardware address is unknown, the frame is forwarded to all ports. =========================================================== =================== Medium, indicating the beginning and end of each character. Compare isochronous transmission . If the router does not store the loopback , select the highest IP from the physical interface as the RouterID (the interface must be active ) Autonomous system : Ethernet ( Ethernet ) A baseband LAN specification created by Xerox , then via Xerox , Digital Password cisco login Kind of protocol to communicate. The bridging function is at the data link layer, layer 2 of the OSI reference model . The purpose of the bridge is to filter, send or spread any incoming frames based on the MAC address of the particular frame. The higher the RouteID, the easier it becomes to become a DR (Designated Router designated router ) Different frequency and phase relationships. Asynchronous transfers typically encapsulate a single character in control bits ( called start and stop bits ) broadcast domain ( Radio City ) receiving apparatus of any broadcast frame sent from a device in the device group Non-designated port is placed in blocking state Crankback (in case of busy return ) In ATM , when a node cannot accept a connection somewhere on the selected path Show cdp neighbors detail View CDP neighbors ( including Layer 3 IP addresses ) show cdp entry * View CDP neighbors ( including Layer 3 IP addresses ) Clock rate ? Configure the clock frequency of the DCE interface ( system specified frequency ) AAA- ---- Authentication (Authentication) , authorization (Authorization) and statistics (Accounting) Cisco ADSU ATM data service unit (ATM Data Service Unit) is used by HSSI connection mechanism compatible Beacon ( beacon ) An FBDT device or token ring frame that indicates a serious problem on the ring, such as electricity Hide : access-list 1 deny any degree. LMI: Local Management Interface . OSPF uses IP packets for route advertisement and learning , Protocol Number : 89 Segment, even the port field in the transport layer header filters the IP address table of the network active monitor ( activity monitor ) for Token Ring management mechanism. The highest MAC address on the ring bidirectional shared tree ( bidirectional shared tree ) A method for forwarding multicast tree sharing. This method allows EFCI Explicit Forward Congestion indication (Explicit Forward Congestion Indication) ATM network The location of the standard access control list application : the location of the access control list application that is applied to the interface that is closest to the target : the application is in the interface closest to the source, show ip interface serial 0, to view the configuration of the interface's acl . 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 . =========================================================== =============== Interface ethernet 0/1 enters the Ethernet port numbered 1 in slot 0 . Network view, the process required to use the best possible path. No user data passed during convergence. all-routes explorer packet ( full routing packet detection ) a can pass over the entire SRB sounding packet network, Please refer to the fourth part of the CCNA Professional English Vocabulary Collection : Classic Recommendations ; CCNA Professional English Vocabulary Collection Used to determine the duplex mode and speed that can be used. The route to the network. 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. CAC Connection Allow Control (Connection Admission Control) Each ATM switch is connected in the connection guard band ( guard band ) two communication channels between a frequency region not used to provide the necessary space to avoid interference therebetween. =========================================================== =============== =========================================================== =============== reload reload Router ( restart ) Encapsulation PPP enables PPP on the interface 1. Reduce the size of the routing table 2. Speed ​​up the convergence 3. Limit the spread of LSA 4. Improve stability Hostname configures the host local ID Encapsulation frame-relay clockrate 64000 5.ExChange 6.Loading 7.Full end-to-end VLANs ( end the VLAN) ----- across the switch fabric (switch-fabric) from end to end IBM agency link. See FRAD . BECN: Backward explicit congestion notification =========================================================== =============== convergence ( convergence ) Internet in all routers update their routing tables and create a consistent When the destination address is unknown , the switch will flood the data frame ( the target address is known , the frame will not be flooded ) The level is set to 32768 . Target port : None Terminal history size <0-256> set command buffer size 0: means no cache Modulation method. See modulation . =========================================================== =============== This routing algorithm group repeats the number of hops in a given route, requiring each router to send its complete updated routing table, but only to its neighbors. This routing algorithm has a tendency to generate loops, but is simpler than the link state algorithm. See link-state routing al-gorithm and SPF . Beacon ( beacon ) An FBDT device or token ring frame that indicates a serious problem on the ring, such as electricity data frame ( data frame ) the OSI protocol data unit package on the reference model data link layer. From the network layer BISDN broadband TSDN (Broadband ISDN) ----- to manage high-bandwidth technologies ( such as video ) created Frame-relay switching NetMask: target network subnet mask If the router does not store the loopback , select the highest IP from the physical interface as the RouterID (the interface must be active ) The twisted pair transmission distance is 100 meters . Whether a given node ID in an AppleTalk network is used by another node. If the node ID is used at the end, the sending node can use the ID of that node . If the node ID is already used, the sending node will select a different ID and send more AARP probe packets. See AARP Other features are available, including timing. This is an extended version of SF . See SF . Packet . connection-oriented ( connection-oriented ) to establish a virtual circuit data before any data transmission EPROM erasable programmable read-only memory----- Autonomous switching (autonomous switching Cisco routers use ciscoBus to independently exchange system processing =========================================================== =============== The level is set to 32768 . call establishment ( call setup ) to refer to a work when the call ISDN call setup scheme. Configure ACL to reject london to access Denver Address mapping ( address mapping ) by converting a network address from one format to another, this designated port ( designated port ) and the Spanning Tree Protocol (STP) used together to specify the forwarding port. If ABM Asynchronous Balance Mode ---- ABM is an HDLC ( or a protocol derived from it ) communication technology that supports peer-to-peer, point-to-point communication between two stations when two stations can start transmitting. To authenticate, the user and password uniquely identify them. ATM user-user connection (ATM user - user connection ) A connection established by the ATM layer to provide switchport mode trunk change the interface mode to trunk mode of operation in 3550 to create an 802.1Q trunk road LMI: Local Management Interface . BGP neighbors (BGP neighbor ) starts a communication process to exchange routing information dynamically two device. Byte ( byte ) 8 bits. See octet . ABM Asynchronous Balance Mode ---- ABM is an HDLC ( or a protocol derived from it ) communication technology that supports peer-to-peer, point-to-point communication between two stations when two stations can start transmitting. Please refer to the fourth part of the CCNA Professional English Vocabulary Collection : Classic Recommendations ; CCNA Professional English Vocabulary Collection Physical layer : =========================================================== =============== Show ip access-lists to view specific list conditions and matching information Numbered recommended standards in ISDN , SMDS, and BISDN . 2) A flag for the field in the ATM address containing the E.164 format number . The ratio of the total number of cells sent in the transmission. RA: autonomous confederation ( Autonomous Federation ) rely mainly on their own network reachability and routing information cost ( cost ) , also known as path cost, an arbitrary value, according to the number of hops, bandwidth, or other juice operator, Port Auxiliary ( auxiliary port ) the Cisco console port on the router backplane, which allows the call routing OSPF area : 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. At least two non-adjacent AppleTalk network through an external network ( such as TCP / IP) is a connection establishment AppleTalk the WAN . This connection is called an AURP tunnel. By exchanging routing information between external routers, AURP maintains a routing table for the full AppleTalk WAN . See AURP tunneL . Part of the original IEEE802.3 standard for 10BaseT , 1OBaseT is the 1OMb/s baseband Ethernet specification. The default route ( default route ) is used to guide the static routing table entry of the frame, and its next hop is not in Configuration and beacon . Network or subnet, which part represents the host. Sometimes referred to as a mask. Playing subnet mask Flow control ( flow control ) is a technique used to ensure that the receiving unit is not overwhelmed by the data of the sending device. Configure IP protocol R14(config)#interface bri 0 R14(config-if)#ip address negotiated Used to " fused " the capabilities of various routers and switch sets . CLR cell loss ratio (Cell Loss Ratio) ----- ATM ratio of discarded cells and cell successfully transmitted. When establishing a connection, the CLR can be specified as a QoS parameter. =========================================================== =============== 10.1.1.0/0.0.0.255 interface fastehternet 0/1 enter fa0 / 1 interface Bus ( bus ) through a physical path ( usually wire or copper wire ) a digital signal can be used to calculate OSPF only supports IP network environments and only supports equivalent load balancing. show flash: view flash in the IOS file R14(config)#interface bri 0 PAP: Two handshakes , the password is transmitted in clear text. One of the related AAL sublayers, which is further divided into CS and SAR sublayers. The CPCS prepares data for transmission over the ATM network, which creates a 48- byte payload cell that is sent to the ATM layer . See AAL and ATM layer . administrative distance ( management distance ) from 0 to 255 a number between, which represents one routing information CSMA / CD carrier with Collision Detection Sense Multiple Access (Carrier Sense Multiple Access / Collision Detect ) Ethernet IEEE802.3 a technology committee defined. Every device is sending The description in the dynamic routing table is clear. Address learning, forwarding filtering, etc. of the switch : Version 2 configures the rip version to version 2 no auto-summary to turn off automatic summarization A working node gets information about the attached network. This information is then used by the interface for its own configuration. Call setuptime ( call setup time ) affects the length of time required for switched calls between DTE devices 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 , EFCI Explicit Forward Congestion indication (Explicit Forward Congestion Indication) ATM network IGRP: based on bandwidth, latency, reliability, load, MTU (maximum transmission unit) =========================================================== =============== AUX port ( auxiliary management interface ): can be connected to MODEM to achieve remote management , exclusive mode . Configuration information. Displays a physical view of the CiSCO device chassis and provides device monitoring capabilities and basic troubleshooting capabilities. Can be integrated with a large number of SNMP- based network management platforms. Change type. Sometimes called modified cut-through . Fallback (in the fall ) ATM network, this mechanism is used to get a path, if it can not use the regular side ACL is the most important : The ACL condition list will have a condition of hiding " reject all " at the end . Table or logical address table. C: 192.168.0.0/24 -- 192.168.255.0/24 FEIP Fast Ethernet Interface Processor (Fast Ethernet Interface Processor) Cisco7000 Series Routing Exit application and exit the database configuration mode of the VLAN The defined length includes a 5- byte header and a 48- byte payload that identify the stream of the cell . See Rate enhancement and VCT conversion. See ATM . 1. Control network traffic 2. Implement packet filtering The ISDN interface for communication , which consists of two B channels ( each 64 Kb/s) and one D channel (16 Kb/s) . Compare PRT . See BISDN . ATCP AppleTalk control program (the AppleTalk Control Program) : establishing and configuring AppleTalk over ----- s1 RA s0 >-------- s1 RB s0 --------- s1 RC s0 ------ Switchport trunk encapsulation dot1q need to choose which way [dot1q|isl] switchport mode trunk change interface mode to trunk work mode show interface trunk view current switch TRUNK configuration WAN : The method of traffic. Low priority traffic is discarded at the edge of the network when the indicator indicates that it cannot be transmitted to use resources efficiently. =========================================================== =============== PPP: Backbone ( backbone ) basic part of the network, which provides sent to other networks and other networks originating from Partial mesh Frame-relay route 110 interface Serial1 120 Interface Serial1.1 multipoint Access layer : Provides network access points , and the corresponding device ports are relatively dense . Main devices : switches , hubs . Show users to see " who " login to local ADSU ATM data service unit (ATM Data Service Unit) is used by HSSI connection mechanism compatible Routing methods. The autonomous system is subdivided by region and must be assigned a separate 16 -digit number by TANA . See area . A data link product from EtherTalk Apple Computer Inc. that allows AppleTalk networks to be powered by Ethernet =========================================================== =============== The line is damaged , the interface does not have any connection cable. Serial1 is up, line protocol is down switchport mode trunk change the interface mode to trunk mode of operation in 3550 to create an 802.1Q trunk road NET / ADAPTIVE company in I991 co-founded the international organization, the organization for the development and promotion of the ATM standards-based technology implementation of the agreement. The ATM Forum relaxed the official standards developed by ANSI and ITU.T and created implementation agreements before the official standards were released. It does not indicate an error and can be intentional. See fragmentation . Show sessions to view " I " telnet outgoing sessions =========================================================== =============== EGPs: External Gateway Routing Protocol , Maintaining Routes between Autonomous Systems Negotiation. Ip route 4.0.0.0 255.0.0.0 s0 ISL 's main road agreement created an 802.1Q main road in 2950 AppleShare and Mac OS file sharing allows users to share files and applications on the server. Flexibility : VLANs can span multiple switches Transmission method. Use acknowledgments and flow control for reliable data transfer. Contrast connectionless . See virtual circuit . Reliable transmission mainly involves physical addressing, line procedures, network topology, error notification, orderly delivery of frames, and flow control. The IEEE has further split this layer into a MAC sublayer and an LLC sublayer. Also known as the link layer. Can be compared to the data link control layer of the SNA model. See Application layer , LLC , MAC , Network layer , Physical =========================================================== ================ distribution layer ( distribution layer ) the Cisco intermediate three layer hierarchical model, which contribute to the design, installation and maintenance 1OOBaseT is based on the IEEE 802.3U standard, 1OOBaseT is a baseband fast Ethernet using UTP wiring =========================================================== =============== Support for multiple network layer protocols through NCP can achieve " authentication ", " compression ", " error detection ", " multi-link " through LCP . B (config-if) #ip nat inside configured S0 interface inside the network Interface fastethernet 0/1 enters Fast Ethernet 0/1 interface Adopt standard : Data link layer : CONSOLE PORT ( management console interface ): distance limit , exclusive way . GRE Generic Routing Encapsulation (Generic Routing Encapsulation): Cisco utilizing TP a tunneling protocol to create a tunnel protocol packet encapsulated in various types of capabilities, thereby producing a virtual point to point connection, a connection across the IP network connection Go to the remote Cisco router. The TP tunnel utilizes GRE , which allows the network to be extended beyond the single protocol backbone environment by linking multi-protocol subnets in a single protocol backbone environment.