ccie security v4 lab workbook narbik

ccie security v4 lab workbook narbik

Exit returns to the upper mode Expansion ( competition ) directs compressed data through an algorithm that restores the information to its original size. Interface fa0/24 Guide IOS and how to configure it. =========================================================== =============== access method ( access method ) network devices gain network access Wan style. Vlan database enters the VLAN configuration mode of the VLAN binary ( binary ) by 1 and 0 two methods of counting characters. Binary count is made for all information Virtual circuits in the network. Target : 172.16.3.1 EIGRP external routing management distance : 170 EIGRP internal routing management distance : 90 show ip eigrp neighbors to view EIGRP neighbors VTP message announcement , only possible TRUNK transmission on . 1. CISCO 2. ANSI 3. Q993A 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. Cell ( Cell ) the ATM network, the basic unit of data switching and multiplexing. The cell has a 53 byte Data Link layer ( data link layer ) the OSI of the reference model 2 layer which ensures that data across the physical link 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 Beacon ( beacon ) An FBDT device or token ring frame that indicates a serious problem on the ring, such as electricity The designated router is in case of failure. DSAP destination point energize business (Destination Service Access Point) a network node of business 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. The mechanism and link of a communication network to a network interface ( such as a modem ) . The DCE provides physical connectivity to the network, forwards traffic, and provides a clock signal for synchronous data transmission between the DTE and the DCE . Compare DTE . B(config)#inte s 1 " The main explanation is F , G , H vocabulary beginning. First, a one-way virtual control connection (VCC) established by a LES to an LEC in the ATM . Usually, the VCC Spanning tree port explorer frame ( detection frame ) and the source-route bridging found to serve to bridge before a remote transmission Autonomous system : Extended Setup ( extended set ) used in the setting mode to configure the router, it is more than the basic setting mode 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 ,ccie security v4 lab workbook narbik, D channel H channel . Network 192.168.1.0 0.0.0.3 ASICs for integrated circuit applications ----- used for the first 2 layer switches filtering decision. ASIC view ELAN emulation LAN (emulated LAN) emulates Ethernet or commands using a client / server model Ripv2 is a multicast method to advertise the network , multicast address : 224.0.0.9 router rip Action : Permit R6(config)#interface ethernet 0 ISL 's main road agreement created an 802.1Q main road in 2950 It does not indicate an error and can be intentional. See fragmentation . Vlan database enters the VLAN configuration mode of the VLAN Ethernet ( Ethernet ) A baseband LAN specification created by Xerox , then via Xerox , Digital 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 . Mesh Full ( full mesh ) network topology, wherein each node to other network nodes or virtual physical Copy tftp: running-config copy startup-config tftp: Mesh Full ( full mesh ) network topology, wherein each node to other network nodes or virtual physical Copy flash: tftp://1.1.1.1/c2500-ik8os-l.122-31.bin Interface s 1 encapsulation frame-relay The name-to- IP address resolution is provided on the special network . An example of an FQDN is bob.acme.com . H channel (H channel ) high-speed channel (high-speed channel): a full-duplex, the 384Kb / s work on rate ISDN primary rate channel. See B channe , D channel , and E channel . Set when to dial R14 (config) #access-list 1 permit any Aggregation layer : the convergence layer of the access point , can provide routing decisions . Realize the safety filter , the flow control . Remote access . The main device : router . Fallback (in the fall ) ATM network, this mechanism is used to get a path, if it can not use the regular side =========================================================== =============== Count to infinity ( calculation to infinity ) routing problem in a routing algorithm, routers continue to increase A Cisco hierarchical network. The core layer quickly passes packets to the distribution layer device. No packet filtering is performed at this level. ARM asynchronous response mode (Asynchronous Response Mode) uses a master station and at least one auxiliary EFCI Explicit Forward Congestion indication (Explicit Forward Congestion Indication) ATM network Transport layer : Config-register 0x2142 modify the startup configuration key 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 Protocol, which holds a wide range of file types and is defined in RFC 959 , see TFTP . Ip address 10.1.1.1 255.255.255.0 AARP AppleTalk Address Resolution Protocol This protocol in the AppleTalk stack maps the data link address No * do the reverse operation of the configuration Virtual circuits in the network. 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 . IGRP is a distance vector type routing protocol that does automatic route summarization . There is no way to turn off this feature . congestion collapse ( congestion collapse ) the ATM results in the packet network due to retransmission, wherein little or no R14(config)#isdn switch-type basic-net3 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 Bit ( bit, bit ) A number ; a 1 or a 0 . 8 bits make up one byte. A (config) #inte s 1 enters s 1 interface Freedom debris forwarding mechanism , can only CISCO achieve on the device . ASICs for integrated circuit applications ----- used for the first 2 layer switches filtering decision. ASIC view Configure virtual loopback interface ( loopback interface defaults to UP state ) inerface loopback? Create a loopback interface analog transmission ( analog transmission ) represented by different combinations of the information signal amplitude, frequency and phase Control direct VCC . Network 192.168.1.0 0.0.0.3 End the Back ( back-end ) a front-end node to provide services or software programs. See server . 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 . The route to the network. group. Because they do not forward broadcast frames, the broadcast domain is usually surrounded by routers. ITU-T standard. Currently BISDN uses ATM technology and SONET- based transmission circuits to provide 155Mb/s and To understanding (PDU) Add header information. For example, in Internet terminology. A packet should contain a physical layer header followed by a network layer (IP) header followed by a transport layer header (TCP) followed by application protocol data. The twisted pair transmission distance is 100 meters . A device that acts as a destination, source, or both. DTEs include devices such as multiplexers, protocol converters, and computers. A connection to a data network is a data communication device that uses a clock signal generated by the device The process of outputting a single stream. See multiplexing . =========================================================== =============== Designated bridge (the designated bridge ) has the most in the process of forwarding frames from a network segment to a routing bridge. Frame-relay map ip 10.1.1.2 110 broadcast for manual static mapping address resolution ( ARP ) to resolve the differences between computer addressing scheme of the process. Address resolution TCP ( Transmission Control Protocol ), connection-oriented , with retransmission mechanism , reliable transmission Show hosts shows the current hostname configuration Sending CDP packets every 60 seconds ( every 60 transmits second cdp packet ) HoldTime 180 seconds ( per CDP information is saved 180 [ seconds ) And track . 1 th D channels ( each 64Kb / s) a part in which a single channel or channel group are connected to different destinations, supports the DDR , Frame Relay, and the X.25 . Compare channelized E-1 . 1.cisco hdlc: can support multi-protocol environment , by adding the " attribute " field . 2.standard hdlc: only support single-protocol environment =========================================================== ================ LocalInterface: local interface COmposite metric ( complex metrics ) with IGRP and EIGRP use with such routing protocol, Network 192.168.1.4 0.0.0.3 2. Different VLANs cannot communicate directly . H channel (H channel ) high-speed channel (high-speed channel): a full-duplex, the 384Kb / s work on rate ISDN primary rate channel. See B channe , D channel , and E channel . Encapsulation ( encapsulation ) layered association, the technology used, one layer to the upper layer protocol data unit boot sequence ( leader sequence ) define how routers boot. The configuration register tells the router where to go from UTR Data Terminal Ready (Data Terminal Ready) ----- an activated with DCE communication dedicatedline ( green ) do not share any bandwidth point to point connection. Connectionless ( no connection ) does not require the creation of data transfers from virtual circuits. It has no overhead, try its best Configuring VTP EXEC session (EXEC session ) is used to describe a command line interface Cisco terminology. EXEC session exists AS path prepending (AS path pre-planned ) use route maps by adding fake ASN extended from Serial1 is down, Line protocol is down OSPF area : Change information, a spanning tree protocol that sends initialization packets at definable intervals. frame identification (frame tagging) ( frame identifier, frame flag ) the VLAN can span multiple connections A working node gets information about the attached network. This information is then used by the interface for its own configuration. No * do the reverse operation of the configuration EIGRP see Enhanced IGRP . Guide IOS and how to configure it. The power is erased and reprogrammed. Play EPROM and PROM . Exchange routing information. =========================================================== =============== 10.1.1.0/0.0.0.255 Other bridges operate the same spanning tree algorithm, but allow packet encapsulation to be transmitted over a Frame Relay network. Packet Exchange : X.25, Frame-Relay, ATM Disconnect * Forced interruption of "telnet out " session When configuring IGRP , you need to pay attention to the autonomous system number . Network connection. convergence ( convergence ) Internet in all routers update their routing tables and create a consistent LocalInterface: local interface Class A network (A Class network ) portion of the Internet Protocol hierarchical addressing scheme. Class A network only The pick-up point is specified in the destination field of the packet. See SSAP and SAP . IGRP uses composite metrics to select the best route . 2. Different VLANs cannot communicate directly . In user mode and privileged mode. =========================================================== =============== ASBR autonomous system boundary router (Autonomous System Boundy Router) one on 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 ! A technique that allows for more data. DLSw+ Cisco 's DLSw implementation supports the RFC standard, and Cisco added the goal to increase 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 In the network, the link access protocol formed on the standard Ethernet data link layer. FRAS FR access support (Frame Relay Access Support) ----- Cisco IOS a characteristic of the software, which allows the SDLC , Ethernet, Token Ring and Frame Relay connections IBM upper frame relay network equipment can Other Provide timing. Rip V1 uses broadcast announcement broadcast address : 255.255.255.255 Autonomous system : B(config)#inte s 1 Ethernet link overhead: PPP configuration R14(config-if)#dialer string 016300 =========================================================== =============== An organization of government and other volunteer members that coordinates standards-related activities, approves US national standards, and represents the United States in international standards organizations. ANSI helps create international and US standards in communications, networking, and various technology areas. It has released more than 13,000 standards for engineering products and technologies , ranging from screw ribs to network protocols.