ccie security v4.0 practice labs pdf

ccie security v4.0 practice labs pdf

A(config-if)#ip rip authentication mode md5 ciphertext authentication The route to the network. Part of the computer sends data to another part. Code IP over ATN equipment. The name-to- IP address resolution is provided on the special network . An example of an FQDN is bob.acme.com . (DCE) , consisting of a modem. See DCE . ATCP AppleTalk control program (the AppleTalk Control Program) : establishing and configuring AppleTalk over Freedom debris forwarding mechanism , can only CISCO achieve on the device . 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. Exit returns to the upper mode CONSOLE PORT ( management console interface ): distance limit , exclusive way . Standard access control list : Detect only the access control list of the source address extension : source address , destination address , protocol , port number Action : Deny GNS the nearest server (Get Nearest Server): in the IPX network, to determine a customer a request of a given type of packet location nearest transmitted activation server. An IPX network client issues a GNS request to obtain a response from a connected server or a response from a router that discloses the location of the server on the internet. GNS is part of IPX and SAP . See IPX and SAP . =========================================================== =============== Used to " fused " the capabilities of various routers and switch sets . Show spanning-tree interface fastEthernet 0/23 View the status of the interface in the spanning tree IGRP uses a 24-bit metric . ELAP EtherTalk Link Access Protocol (EtherTralk Link Access Protocol) on EtherTalk Network EIGRP uses a wildcard mask configuration example : RIPv1, RIPv2, IGRP, EIGRP, OSPF, ISIS 1. Content of the announcement : Incremental update (OSPF lsa) 2. Announcement time : Trigger 3. Announced object : Router with neighbor relationship Using PPP encapsulation and support on the wire, it is a security feature that identifies the remote end and helps prevent unauthorized users. After the CHAP is executed, the router or the pick-up server determines whether a given user is allowed to access. It is a new, more secure protocol than PAP . Compare PAP . Coaxial cable classification for signaling. Compare baSeband . =========================================================== =============== Show hosts shows the current hostname configuration broadcast storm ( broadcasting storm ) on the network an unwelcome event, it turned on by any number of broadcast Network layer : routing ( path selection ), logical address (IP) Packet CSU / DSU channel service unit / data service unit (channel service unit / data service unit ): a wide area network in the digital signal is converted into a physical layer device provider appreciated switch signal. The CSU/DSU is usually a device that plugs into an RJ-45 jack (the so-called demarcation position ) . =========================================================== =============== call admission control ( call admission control ) the ATM network device in a traffic management, it is a discovery mode ( discoverable mode ) also called dynamic configuration, this technology is AppleTalk interface is used from Layer Access ( Access Stratum ) ----- the Cisco three-layer hierarchical model. The access layer allows users to access the Internet. List Access ( access list ) to save the router a set of test conditions, which determine the various services on the network " interested BGP Identifier (BGP Identifier ) that identifies the segment comprises Yu BGP a value of the speakers. This is by =========================================================== =============== Connectionless ( no connection ) does not require the creation of data transfers from virtual circuits. It has no overhead, try its best Cellrelay . control direct VCC ( control direct VCC) ----- Phase I LAN emulation defined in one of three control connections, ATM by a LEG to a LES established bi-directional virtual control connection (the VCC) . See control distribute VCC . 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. 0x1 Router will load the mini ios software and enter BOOT mode. Listen for digital signals on the cable before. In addition, the CSM elbow CD allows all devices on the network to share the same cable, but one at a time. If both devices are sending at the same time. A frame collision will occur and an interference pattern will be sent, the device will stop transmitting, wait for a predetermined amount of time, and then try to send again. DLSw Data Link Switching (Data Link Switching) IBM in 1992 Exploitation AC data link Cost ( cost ), also known as path cost, an arbitrary value, based on the number of hops, bandwidth, or other juices, The IP address is converted to a MAC address. See RARP . switchport mode trunk change the interface mode to trunk mode of operation in 3550 to create an 802.1Q trunk road show flash: view flash in the IOS file DXI data exchange interface (Data Exchange Interface) in RFC 1482 is described, DXI define a The node automatically performs the diagnosis and attempts to reconfigure the network by bypassing the failed area. VTP is a messaging system . Ensures that all of the switches in the same management domain below network VLAN Target : 172.16.3.1 OSPF hierarchy advantages : Configure a password for the console port : R14(config-if)#dialer-group 9 1. refuse 2. allowed ATDM asynchronous time division multiplexing (Asynchronous Time-Division Multiplexing) to send information 1.Server mode < main > 2.Client mode < time > 3.TransParent mode < transparent > 1. Standard Access Control List 1-99, 1300-1999 2. Extended Access Control List 100-199, 2000-2699 =========================================================== =============== DCC data Country Code (Data Country Code) developed by the ATM Forum for the use of private networks B(config)#access-list 1 permit any EEPROM electrically erasable programmable read-only memory is programmed after shipment. These non-volatile memory chips can be used when needed. ATM ATM (Asynchronous Transfer Mode) by a fixed-length 53 -byte element identifier Coaxial cable classification for signaling. Compare baSeband . AAA- ---- Authentication (Authentication) , authorization (Authorization) and statistics (Accounting) Cisco Layer , Presentation layer , Session layer , and Transport layer . data terminal equipment ( Data Terminal Equipment ) , see the DTE . VTP is a messaging system . Ensures that all of the switches in the same management domain below network VLAN ROM: Rom monitor is a lower-level os system than Mini IOS , similar to BIOS Mini IOS (2500 serial Line : PPP, HDLC, SLIP =========================================================== =============== A feature that changes routing. Where to perform circuit switching. Scalability and improved performance and usability enhancements. VTP is the use multicasting to advertise, VTP will intervals . 5 minutes announcement once , even if there is no change .VTP switch synchronized the last configuration . A corrective technique used to block the request. The path is restored to an intermediate node. Then use GCAC to try to find an alternate path to the final destination. =========================================================== =============== ACL is the most important : The ACL condition list will have a condition of hiding " reject all " at the end . ATP AppleTalk transaction protocol (AppleTalk Transaction Protocol) a transport layer protocol, =========================================================== =============== guard band ( guard band ) two communication channels between a frequency region not used to provide the necessary space to avoid interference therebetween. Transport layer : reliable and unreliable transport services , retransmission mechanism . Segment =========================================================== =============== Configure a password for the console port : VLAN characteristics Show sessions to view " I " telnet outgoing sessions RIP: Is the hop count as the metric for selecting the best route. The wrong route will be selected incorrectly. Frame Relay ( FR ) ----- the X.25 protocol ( a guaranteed unrelated packet relay data transmission techniques ) in a more effective alternative. Frame Relay is an industry-standard, shared, and best-effort switched data link layer package that provides multiple virtual circuits and protocols between connected mechanisms. RIP supplement : E channel (E channel ) loopback channel (Echo channel) ----- for a circuit switched 64Kb / s ISDN control channel. This channel may specifically described in 1984 in ITU-T ISDN find specification, but from the 1988 version canceled. See Bchannel , D channel H channel . Ciscoa.njut.edu.cn Spanning-tree vlan 1 cost ?? An OSI language and description method for data types . It is described by ISO International Standard 8824 . Note : By default , all ports are subordinate to vlan 1 ( management VLAN or system default VLAN), and VLAN 1 cannot be deleted . Topology Bus ( bus topology ) a straight LAN off-line structure, wherein transmission from each station on the network DHCP Dynamic Host Configuration Protocol (Dynamic Host Configuration Protocol) ----- DHCP is Command Global ( global command ) is used to define the command Cisco terminology, which are used to change the entire router that configuration. In contrast, interface commands only affect that interface. Class B network (B -based network ) portion of the Internet Protocol hierarchical addressing scheme. Class B network has 16 Ethernet ( Ethernet ) A baseband LAN specification created by Xerox , then via Xerox , Digital Rip management distance : 120 The reduced mode IP multicast scheme uses TGMP to transport routing datagrams between its neighbors. See IGMP . FSIP Fast Serial Interface Processor (Fast Serial Interface Processor) Cisco 7000 Router silent CER cell error ratio (cell error ratio) ATM cell, a transmission error within a certain time and R14(config)#dialer-list 9 protocol ip list 1 BGP4 BGP Version 4 (BGPversion4) ----- versions of the most common on the Internet inter-domain routing protocol 4 . And channel . 1 th D portion of the channel, supports the DDR , Frame Relay, and the X.25 . Compare channelized T-1 . BGP neighbors (BGP neighbor ) starts a communication process to exchange routing information dynamically two Web specification. When no traffic is present. 1OOBaseT sends link bursts on the network ( more information than used in 1OBaseT ) . See 10BaseT , Fast Ethernet, and IEEE 802.3 . DDR demand dial routing (dial-on-demand routing) allows a router according to the sending station needs CTD Cell Transfer Delay (Cell Transfer Delay) for ATM a given connection is used in the source The demodulator demodulates the analog signal into the original digital form ( in turn, modulates the digital data it transmits into an analog signal ) . See modulation . =========================================================== =============== Configure IP protocol R14(config)#interface bri 0 R14(config-if)#ip address negotiated R6(config-if)#ip address 1.1.1.1 255.255.255.0 guard band ( guard band ) two communication channels between a frequency region not used to provide the necessary space to avoid interference therebetween. call admission control ( call admission control ) the ATM network device in a traffic management, it is a Hostname configures the host local ID The header information is removed from the (PDU) . See encapsulatio . Ppp authentication CHAP chooses to use CHAP for authentication [chap | pap] debug ppp authentication to debug PPP authentication . extended IP accesslist ( extended IP access list ) by logical address, the network layer protocol header word Centrex ( Central Switch ) A local switched carrier service that provides local handover similar to live PBX autonomous confederation ( Autonomous Federation ) rely mainly on their own network reachability and routing information debug ip rip debug RIP routing ROM: Rom monitor is a lower-level os system than Mini IOS ,ccie security v4.0 practice labs pdf, similar to BIOS Mini IOS (2500 serial 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 . =========================================================== =============== 10OMb/S baseband Fast Ethernet specification. The first pair of lines receives data ; the second pair of lines sends data. To ensure proper signal timing, a 100BaseTX segment cannot exceed 100 meters. Busy, a frame can be discarded. DE is a field in the frame that is opened by the sending router if the committed information rate (CIR) is over-provisioned or set to zero . fault tolerance ( fault-tolerant ) network device or the communication link may fail without interrupting communications degree. Fault tolerance DLCI: identifies the PVC 's . Only valid locally . 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 . =========================================================== =============== Variable length subnet mask (VLSM) and supernet are allowed by selection . Protocols that support stepless routing are RIP version 2 , =========================================================== ===================== Maximize the specification of running IP OVer ATV . Also known as "CIA" . Bits are used to define the network. Only 8 bits are used to define hosts on the network. VLAN features : Config-register 0x2142 modify the startup configuration key Endpoints ( endpoint ) see BGP neighbors . B(config-if)#ip nat outside configure S1 interface for the outside network to specify which hosts can NAT Other features are available, including timing. This is an extended version of SF . See SF . A non-distributed backbone. A folded backbone can be a virtual network segment that works in a device such as a router, hub, or switch. A service-related sublayer of the AAL ATM adaptation layer data link layer, data link layer from other applications The VBR service delivers classic IP over ATM and LANE traffic. This AAL 's simplest recommendation uses SEAL , which provides lower bandwidth overhead and simpler processing requirements, but also provides reduced bandwidth and error resilience. See AAL Call setuptime ( call setup time ) affects the length of time required for switched calls between DTE devices bidirectional shared tree ( bidirectional shared tree ) A method for forwarding multicast tree sharing. This method allows frameing ( framing ) the OSI package on model data link layer. It's called framing because the packet is used 2. Different VLANs cannot communicate directly . The device has the hardware address of all devices on the internetwork. The server will then dynamically allocate the used VLANs . R6(config-if)#ip address 1.1.1.1 255.255.255.0 =========================================================== =============== DCE/DTE only exists in the WAN Coaxial cable classification for signaling. Compare baSeband . The credibility value of the source. The smaller the value, the higher the level of constitutionality Hostname configures the host local ID De-encapsulation ( disassembly ) layered protocol technology, in which a layer of slave layer protocol data unit DLCI: identifies the PVC 's . Only valid locally . Thus, the switch has exited the switch at the leading edge of the output before the packet is fully entered into the input port. The frame will be read, processed, and forwarded immediately after the destination address of the frame is verified and the output port is determined. Sended and is not reliable. Compare connection-oriented . See virtual circuit . CPE customer premises equipment is installed at the user's location and connected to the telephone company's network equipment, such as telephones, Exit R14(config-if)#dialer idle-timeout 60 Cell ( Cell ) the ATM network, the basic unit of data switching and multiplexing. The cell has a 53 byte data circuit-terminating equipment ( data circuit terminating equipment ) the DCE is used between DTE equipment Is a point-to-multipoint connection. See control directVCC . Interface s 1.??? point-to-point enables a peer -to- peer subinterface . ??? is the interface number . ip add 10.1.1.1 255.255.255.0 configures the ip for the subinterface Grafing ( transplanted ) to activate a pruning process had been frozen interface process. It is sent to the router Maximize the specification of running IP OVer ATV . Also known as "CIA" . Topology Bus ( bus topology ) a straight LAN off-line structure, wherein transmission from each station on the network Classical IP over ATM ( classical IP over ATM) is defined in RFC 1577 to make ATM features DLSw+ Cisco 's DLSw implementation supports the RFC standard, and Cisco added the goal to increase AARP AppleTalk Address Resolution Protocol This protocol in the AppleTalk stack maps the data link address convergence ( convergence ) Internet in all routers update their routing tables and create a consistent Other routers maintain a record of existing available routes AEP AppleTalk Response Protocol (AppleTalk Echo An incident has occurred. Can be abbreviated as ACK . Control NAK . firewall ( firewall ) intentionally a barrier between any public network and a private network settings from a The distance limit of each segment of 1OBaseT is about 100 meters. See Ethernet and IEEE 802.3 . =========================================================== =============== Bandwith on demand (BoD , bandwidth on demand ) This feature allows an additional B channel to be used for Encapsulation frame-relay The higher the RouteID, the easier it becomes to become a DR (Designated Router designated router ) Fallback (in the fall ) ATM network, this mechanism is used to get a path, if it can not use the regular side Cisco layered network. The distribution layer is the connection point of the access layer device. Routing is done at this level. ABR area border router ----- located in one or more OSPF area boundary OSPF routers, ABR is used to OSPF connection region to the OSPF backbone area Storage forwarding : slow , ensuring the correctness of the frames being forwarded . 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. AURP tunnel (AURP tunnel ) connection in an AURP WAN , which is physically divided into two 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. Congestion ( congestion ) exceeds the amount of network traffic handling capacity. 1. Add this interface to the rip process. 2. Advertise the network of this interface to other routers. EPROM erasable programmable read-only memory----- Enable enter privileged mode It is responsible for transmitting frames. Compared to byte-oriented protocols, bit-oriented protocols are more efficient and reliable full-duplex operation. Compare byte-oriented protocol . =========================================================== =============== Physical layer : Router), also known as boot mode , can be used for IOS upgrades. Experiment : 8 bits are used to define the network, and 24 bits are used to define hosts on the network. " The main explanation is F , G , H vocabulary beginning. compression ( compression ) with a string of numerals repeated data, transmitted over a link than the normal grant Frame-relay lmi-type ansi frame-relay intf-type dce Routers running BGP ; they use a TCP port on layer 4 of the OSI Reference Model . Especially using TCP (Amplitude magnitude ) the maximum analog or digital waveform. B#show ip nat translations view translation relationship table R6(config)#interface ethernet 0 Encapsulation PPP enables PPP on the interface Enable enter privileged mode Encapsulation frame-relay clockrate 64000 A recognized serial interface processor that provides four or eight high-speed serial interfaces. Classical IP over ATM ( classical IP over ATM) is defined in RFC 1577 to make ATM features CLP cell loss priority (Cell Loss Priority) ATM channel is determined when the header message element cell network congestion Port Console ( control port opening ) the Cisco a typical routers and switches on the RJ-45 ports, with Frame-relay switching =========================================================== =============== bridge identifier ( bridge identifiers ) for the first 2 discovery layer switched internetwork and network selection root AURP AppleTalk is based on the AppleTalk Update-based Routing Protocol, a technology for encapsulating AppleTalk traffic in the header of an external protocol. Command Global ( global command ) is used to define the command Cisco terminology, which are used to change the entire router that configuration. In contrast, interface commands only affect that interface. 1. Define the maximum number 2. Horizontal separation 3. Route poisoning , toxicity reversal 4. Silence timer 5. Trigger update It uses two pairs of twisted-pair cable (3 class 4 class or 5 classes ) , one pair for transmitting data to the other for receiving data. A (config) #inte s 1 enters s 1 interface Designated bridge (the designated bridge ) has the most in the process of forwarding frames from a network segment to a routing bridge. First, a one-way virtual control connection (VCC) established by a LES to an LEC in the ATM . Usually, the VCC DCE data communication device ( by JIA defined ) or a data circuit-terminating equipment ( according to ITU-T defined ) constituted by EGPs: External Gateway Routing Protocol , Maintaining Routes between Autonomous Systems 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 . Network connection. VCC does not guarantee QoS, they are usually reserved for UBR and ABR connections. Compare control distribute VCC and Dynamic routing ( dynamic routing ) network revision. Also known as " adaptive routing " , this technology is self- DLSw Data Link Switching (Data Link Switching) IBM in 1992 Exploitation AC data link 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. Halfduplex . DSR modem is ready (Data Set Ready) ----- When the DCE energized and ready to run, this A subsection that depicts the type and format of the IDI portion of the ATM address . Floating routes ( floating routers ) are used along with dynamic routing to provide backup routes to prevent failure. Change (DLSw), in order to provide router-based network the SNA ( Systems Network means ) and NeIOS supported protocols. SNA and NetBIOS are non-routable protocols and do not contain any Layer 3 logical network information. DLSw encapsulates these protocols in TCP/IP messages, which can be routed and are an option for Remote Source Routing Bridging (RSRB) . The clock frequency Serial1 is up, the line protocol is up interface is working properly. ATM ATM (Asynchronous Transfer Mode) by a fixed-length 53 -byte element identifier Ripv2 certification : The pick-up point is specified in the destination field of the packet. See SSAP and SAP . Ip host Set static hostname mapping A bit set by the network that informs the DTE receiver that congestion is encountered along the path from the source to the destination. Received FECN bit control direct VCC ( control direct VCC) ----- Phase I LAN emulation defined in one of three control connections, ATM by a LEG to a LES established bi-directional virtual control connection (the VCC) . See control distribute VCC . Sended and is not reliable. Compare connection-oriented . See virtual circuit . =========================================================== =============== accounting ( statistics ) ----- AAA one of the three components. Statistics provide auditing and recording skills for security models Flexibility : VLANs can span multiple switches R14(config-if)#ppp chap password 16300 R14(config-if)#ppp chap hostname 16300 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 . eBGP External Border Gateway Protocol (External Border Gateway Protocol) is used in different autonomous The CISCO 1900 series switches use free shard forwarding to forward this forwarding method by default. Packet exchange. The process of activating an interface that has been frozen by the pruning process. It is initiated by an IGMP member report sent to the router . 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. A (config) #inte s 1 enters s 1 interface Network view, the process required to use the best possible path. No user data passed during convergence. Routers running BGP ; they use a TCP port on layer 4 of the OSI Reference Model . Especially using TCP Password cisco sets a password to "cisco" First, a one-way virtual control connection (VCC) established by a LES to an LEC in the ATM . Usually, the VCC Ppp chap password cisco sends local password in CHAP mode NextHopIP: Next hop IP AIP ATM Interface Processor (ATM Interface Processor) ----- supports AAL3 / 4 and AAL5. Cisco Network connection. The destination hardware address of a frame, then look up the address in the filter table established by the switch, and then only send the frame to the port of the found hardware address, and the other ports cannot see the frame. Standard access control list : Detect only the access control list of the source address extension : source address , destination address , protocol , port number =========================================================== =============== ATMlayer A sublayer of the data link layer in an ATM network that is service independent. for Congestion ( congestion ) exceeds the amount of network traffic handling capacity. Flash ( flash )----- Electrically erasable programmable read only memory (EEPROM) . Used by default to save CiscoIOS on the router . Packet Exchange : X.25, Frame-Relay, ATM 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. De-encapsulation ( disassembly ) layered protocol technology, in which a layer of slave layer protocol data unit Interface fa0/24 Telnet: Multi-person remote management ( depending on performance , number of VTY lines ). Not safe . Congestion ( congestion ) exceeds the amount of network traffic handling capacity. WAN type and encapsulation protocol : If the source address and destination address of the data frame are from the same port , the switch will discard the data frame by default . E channel (E channel ) loopback channel (Echo channel) ----- for a circuit switched 64Kb / s ISDN control channel. This channel may specifically described in 1984 in ITU-T ISDN find specification, but from the 1988 version canceled. See Bchannel , D channel H channel . Target : 172.16.3.1 bit-oriented protocol ( bit oriented protocol ) regardless of the content of the frame, the data link layer communication protocol such helper address ( help address ) specified unicast address, which directs Cisco router into direct fragmentation ( segmentation ) when transmitting data on an intermediate medium can not support large network packet size, so Network 192.168.1.0 0.0.0.3 A method of transmitting a parity bit or word in the link overhead of a previous block or frame. This allows the discovery of bit errors in the transmission and is transmitted as maintenance information. =========================================================== =============== =========================================================== =============== 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 . Piece address. The switch then filters the network with a known hardware address (MAC) Topology Bus ( bus topology ) a straight LAN off-line structure, wherein transmission from each station on the network VTP message announcement , only possible TRUNK transmission on . Hostname configures the host local ID 1 1 2 1 2 1 The IGMP member report was initiated. Cable Crossover ( crossover cable ) is connected to the switch switches, host-to-host, hub to hub C: 192.168.0.0/24 -- 192.168.255.0/24 The distance limit of each segment of 1OBaseT is about 100 meters. See Ethernet and IEEE 802.3 . Ip host Set static hostname mapping 10.1.1.1/0.0.0.0 Show ip route eigrp to see the best route for all EIGRP ( stored in the routing table ) ( Such as OSPF and BGP4) supported by a method based on ignoring TP concept of address classes, allowing route summarization and routers can be combined to minimize the need for routing the main transmit routing information in the router VLSM . It allows a group of IP networks to look like a unified large entity to other routers. In CIDR , IP addresses and their subnet masks are written 10Gbps 2 EIGRP external routing management distance : 170 EIGRP internal routing management distance : 90 show ip eigrp neighbors to view EIGRP neighbors Non-designated port is placed in blocking state The quantity manages a QoS parameter specified when the connection is established . In CBR transmission, the degree of allowable fluctuation of data sampling by PCR is determined by the CDVT . See CBR and PCR . the fragment ( fragment ) of a large packet is intentionally divided into any portion of the small pieces. a packet fragment 1. Bandwidth 2. Delay 3. Reliability 4. Load 5. MTU Router ospf 1 ATMM was ATM management (ATM Management) in ATM a protocol running on the switch tube =========================================================== =============== Port Auxiliary ( auxiliary port ) the Cisco console port on the router backplane, which allows the call routing It is one of the four link metrics exchanged by PTSP to test the reliability of ATM network resources. =========================================================== =============== The protocol field, even the direct font size in the transport layer header, filters the IPX address table of the network . connection-oriented ( connection-oriented ) to establish a virtual circuit data before any data transmission 10.1.1.1/255.255.255.255 The interface interface processor card provides lOMb/s AUI port support for Ethernet version 1 and Ethernet version 2 or IEEE 802.3 interface with high speed data path to other interface processors . The other party is not configured with the same Layer 2 protocol serial interface default encapsulation: HDLC + returns directly to privileged mode Ppp chap password cisco sends local password in CHAP mode Network devices ( such as routers, bridges or hubs ) efficacy. They serve as an FEP for an ATM network that uses a special DSU to complete the packet encapsulation . The process of segmenting a packet into small pieces. 1Gbps 4 =========================================================== =============== An octet divided into four points, followed by a forward slash and the number of the masked bit ( abbreviation of the subnet symbol ) . See CCNA is Cisco's most basic entry certification. Among them, the test focuses on network concepts and theories. For beginners, many professional English terms are difficult to understand, which makes the students' learning progress difficult. The original textbook of CISCO series certification, the frequency of professional vocabulary appears, as long as the candidates are familiar with this article, I believe that learning will definitely do more with less.