ccie security v5 course outline

ccie security v5 course outline

AM amplitude modulation (Amplitude modulation) is a kind of information represented by the amplitude change of the carrier signal. ROM: Rom monitor is a lower-level os system than Mini IOS , similar to BIOS Mini IOS (2500 serial The main path of traffic. Communication between two ATM service users ( such as ATMM processes ) . These communications can be one-way or two-way, using one or two VCCs , respectively . See ATM layer and ATMM . distribution layer ( distribution layer ) the Cisco intermediate three layer hierarchical model, which contribute to the design, installation and maintenance =========================================================== =============== =========================================================== =============== 10Gbps 2 =========================================================== ================ the adjacency ( abutting ) the relationship between the neighboring routers and end nodes use a common media segment established to =========================================================== =============== FEIP Fast Ethernet Interface Processor (Fast Ethernet Interface Processor) Cisco7000 Series Routing The protocol field, even the direct font size in the transport layer header, filters the IPX address table of the network . FECN: Forward Explicit Congestion Notice CiscoView GUI management software for Cisco network devices that provides dynamic status, statistics, and full 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. 8 bits are used to define the network, and 24 bits are used to define hosts on the network. 4. Notification method : Broadcast (RIPv1, IGRP) rule mechanism : CISCO router , the serial interface defaults cisco HDLC encapsulation in practical applications , Cisco HDLC incompatible standard hdlc. Routing methods. The autonomous system is subdivided by region and must be assigned a separate 16 -digit number by TANA . See area . VTP is a messaging system . Ensures that all of the switches in the same management domain below network VLAN Neighbor indicates a specific neighbor A(config)#key chain A configuration key chain A Modulation method. See modulation . Each non-root bridge elects a root port 1) Bandwidth Cost Lowest 2) Recevied BridgeID Lowest In the network, the link access protocol formed on the standard Ethernet data link layer. 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 Fast switching ( fast switching ) that utilizes a route cache to speed up packet switching through a router B8ZS binary 8 replacement - a line coding, explained at the far end of the connection, when transmitting eight zeros continuously on the link of the T-1 and E-1 circuits, it uses a special Code replacement. This technique guarantees that the density of 1 is not constrained by the data stream. Also known as bipolar 8 zero replacement. Compare AMI . See ones density . Enable password Set the plaintext enable password =========================================================== =============== 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 . Target port : None Show ip ospf neighbor to view neighbors (NeighborID is RouterID) 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 . frameing ( framing ) the OSI package on model data link layer. It's called framing because the packet is used Source : 10.3.3.1 Reduce the send rate. byte-oriented protocol ( byte oriented protocol ) to mark the frame boundaries, the use of a user character Configure ACL to reject london to ping through Denver (1) If the router does not store the loopback , select the highest IP from the physical interface as the RouterID (the interface must be active ) CONSOLE PORT ( management console interface ): distance limit , exclusive way . EIGRP uses a wildcard mask configuration example : Asynchronous transmission ( digital transmission ) does not have a precisely timed digital signal, usually CIR committed information rate (cormmitted imformation rate) is averaged over a minimum time range, Guide IOS and how to configure it. Scalability and improved performance and usability enhancements. Show ip protocols to view information about RIP 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 . CISCO router , the serial interface defaults cisco HDLC encapsulation in practical applications , Cisco HDLC incompatible standard hdlc. Show sessions to view " I " telnet outgoing sessions Show frame-relay lmi show frame-relay pvc show frame-relay map The protocol field, even the direct font size in the transport layer header, filters the IPX address table of the network . autonomous confederation ( Autonomous Federation ) rely mainly on their own network reachability and routing information DDP Datagram Delivery Protocol (Datagram Delivery Protocol) for the AppleTalk protocol as Group cut-through frame switching ( straight-frame exchange ) A frame of data flowing through the switch switching technology CDVT call delay variation tolerance (Cell Delay Variation Tolerance) ATM network for communications data frame ( data frame ) the OSI protocol data unit package on the reference model data link layer. From the network layer cut-through frame switching ( straight-frame exchange ) A frame of data flowing through the switch switching technology Transmission method. Use acknowledgments and flow control for reliable data transfer. Contrast connectionless . See virtual circuit . =========================================================== =============== 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 . Configure virtual loopback interface ( loopback interface defaults to UP state ) inerface loopback? Create a loopback interface frameing ( framing ) the OSI package on model data link layer. It's called framing because the packet is used cell payload scrambling ( cell payload scrambling ) the ATM switches and certain of the edges speed relay Reduce the send rate. 1.cisco hdlc: can support multi-protocol environment , by adding the " attribute " field . 2.standard hdlc: only support single-protocol environment B(config)#inte s 1 Enable HDLC on the interface : interface serial 0 encapsulation HDLC R14(config-if)#ppp chap password 16300 R14(config-if)#ppp chap hostname 16300 Piece address. The switch then filters the network with a known hardware address (MAC) =========================================================== =============== CER cell error ratio (cell error ratio) ATM cell, a transmission error within a certain time and =========================================================== =================== =========================================================== =============== =========================================================== =============== Rip V1 uses broadcast announcement broadcast address : 255.255.255.255 Copy running-config startup-config saves the current configuration concept : Network and terminal emulation software to connect asynchronous devices - a LAN or the WAN , to provide supported protocol routing synchronous or asynchronous. Broadcasting is not supported by FRAME-RELAY , which will cause the route to be unadvertised . Solution : Copy multiple frames for announcement. 3. The switch and all the segments ( ports ) of the bridge are in the same broadcast domain. Show controllers serial 0 is used to view the attributes of DCE and DTE 1. Use hop count as a metric 2. Support up to 6 paths for the average load (default set to 4) 3. Periodic notification time : 30s 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 Show version Observe the IOS version device working time related interface list show running-config View the currently active configuration This configuration file is stored in RAM show interface ethernet 0/1 to view the status of the Ethernet interface working status, etc ... edge. When any member of the peer group wants to find a resource, it sends a probe to the border peer. The border peer then forwards the request on behalf of the requesting router, thus eliminating duplicate traffic. Corelayer The top layer of the Cisco three-tier hierarchical model that helps design, build, and maintain a Flash ( flash )----- Electrically erasable programmable read only memory (EEPROM) . Used by default to save CiscoIOS on the router . 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. Maximize the specification of running IP OVer ATV . Also known as "CIA" . Other routers maintain a record of existing available routes AEP AppleTalk Response Protocol (AppleTalk Echo Set when to dial R14 (config) #access-list 1 permit any =========================================================== =============== R1(config)#no cdp run disables CDP protocol in global configuration mode ( affects all interfaces ) r1(config-if)#no cdp enable disables CDP protocol on interface ( only affects the specified interface ) clear cdp table clears CDP neighbors table B(config)#inte s 1 filtering ( Filter ) The following table provides security on the network by between visits. Nvram: non-volatile memory , power-off information will not be lost <-- user configuration <-- startup-config ram: random access memory , power-off information is lost <-- currently effective configuration <-- running-config Centrex ( Central Switch ) A local switched carrier service that provides local handover similar to live PBX Used to determine the duplex mode and speed that can be used. A remote AppleTalk location access protocol for resources and data. Used to determine the duplex mode and speed that can be used. 1900 only supports ISL trunk protocol 2950 only supports 802.1Q trunk protocol 3550 supports 802.1Q and PAT configuration the fragment ( fragment ) of a large packet is intentionally divided into any portion of the small pieces. a packet fragment CLP cell loss priority (Cell Loss Priority) ATM channel is determined when the header message element cell network congestion Rate enhancement and VCT conversion. See ATM . Advertising ( advertisement ) routing or service update is sent at a given interval, allowing on the network Modem and terminal. Sended and is not reliable. Compare connection-oriented . See virtual circuit . AMI Alternate Mark Inversion (Alternate Mark Inversion) T-1 and E-1 A circuit on a circuit compiled Collision ( conflict ) Ethernet two nodes simultaneously transmit the result of the transmission. When they are on physical media 100BaseTX is based on the IEEE 802.3U standard, 100BaseTX is wired using two pairs of UTP or STP When to disconnect Spanning trees can avoid loop problems caused by redundancy . Solve the problem : put redundant ports into blocking state . Interfaces in blocking state will not receive / send user data . Source port : None Telnet: Multi-person remote management ( depending on performance , number of VTY lines ). Not safe . Debug ip igrp transactions debug igrp event content A (config-if) #ip rip authentication key-chain A selected A key chain It can be provided by a secondary router added to a remote network. RouterID generated ? Advertising ( advertisement ) routing or service update is sent at a given interval, allowing on the network ANSI is a member of the IEC and ISO . Bits are used to define the network. Only 8 bits are used to define hosts on the network. And the protocol to close the session and the sequential request. See ATP . =========================================================== =============== There is traffic successfully reaching the destination. Usually in a router with poor productivity or insufficient caching ability and poor packet loss B#show ip nat translations view translation relationship table =========================================================== ================ The amount of time. By default, the cdp timer is 90 seconds. C: 192.168.0.0/24 -- 192.168.255.0/24 BGP peers (BGP peers ) See BGP neighbors . 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 . Exit Switch function: AST Automatic Spanning Tree (Automatic Spanning Tree): to generate a probe frames from a moving network node to another node of a feature in the SRB support automatically resolve the spanning tree network. The AST is based on the IEEE 802.1 standard. See IEEE802.1 and SRB . 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 Show ip access-lists to view specific list conditions and matching information =========================================================== =============== Show cdp interface serial 1 View the CDP information of the interface. A non-distributed backbone. A folded backbone can be a virtual network segment that works in a device such as a router,ccie security v5 course outline, hub, or switch. ARA AppleTalk Remote Access (AppleTalk Remote Access) is built for Macintosh users Floating routes ( floating routers ) are used along with dynamic routing to provide backup routes to prevent failure. Hostname configures the host local ID List Access ( access list ) to save the router a set of test conditions, which determine the various services on the network " interested ARP ARP (Address Resolution Protocol) in RFC 826 is defined in the protocol all-routes explorer packet ( full routing packet detection ) a can pass over the entire SRB sounding packet network, Guide IOS and how to configure it. Private IP address : =========================================================== ================ flash memory ( flash memory ) Intel developed and licensed to other A nonvolatile semiconductor memory used by the manufacturer =========================================================== =============== ARM asynchronous response mode (Asynchronous Response Mode) uses a master station and at least one auxiliary A(config)#key chain A configuration key chain A Cable Crossover ( crossover cable ) is connected to the switch switches, host-to-host, hub to hub Application layer : user interface DATA =========================================================== ================ 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 .