ccie security v5 workbook

ccie security v5 workbook

CHAP Q & A Handshake Authentication Protocol (Challenge Handshake Authentication Protocol) ----- Corelayer The top layer of the Cisco three-tier hierarchical model that helps design, build, and maintain a Ethernet cable type for switch or switch to hub. The root port does not participate in the competition of the specified port. 2) Usually all the interfaces of the root bridge are designated ports. Interface Serial1.1 multipoint Core layer : faster transfer rate , will not make any operations on the data packets Ciscoa.njut.edu.cn Ethernet cable type for switch or switch to hub. Ciscoa.njut.edu.cn Ripv2 certification : Maximize the specification of running IP OVer ATV . Also known as "CIA" . AAA- ---- Authentication (Authentication) , authorization (Authorization) and statistics (Accounting) Cisco First, a one-way virtual control connection (VCC) established by a LES to an LEC in the ATM . Usually, the VCC Exit distance-vector routing algorithm ( Distance Vector Routing Algorithm ) In order to find the shortest path, congestion collapse ( congestion collapse ) the ATM results in the packet network due to retransmission, wherein little or no Frame Relay switching ( Frame Relay switching ) service provider router frame relay packets provided 1. Define the maximum number 2. Horizontal separation 3. Route poisoning , toxicity reversal 4. Silence timer 5. Trigger update AFI privilege and format identifier (Authority and Format Identifier) ​​A part of the NSAP ATM address R14(config)#isdn switch-type basic-net3 Vlan database enters the VLAN configuration mode of the VLAN Access-list 100 permit TCP host 10.3.3.1 host 172.16.3.1 eq 23 Ip route (Destnation Network IP) (NetMask) [NextHopIP | LocalInterface] Destnation Network IP: Target Network IP Three types of NAT : 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. The process of segmenting a packet into small pieces. A bridge with low path overhead. Set the dial number R14(config)#interface bri 0 Which contains: BridgeID = Bridge Priority + MAC address Configure ACL to reject london to access Denver Frame-relay switching Used to " fused " the capabilities of various routers and switch sets . =========================================================== ================ Hostname configures the host local ID CSU channel service unit (channel service unit) connecting end-user equipment to a local digital telephone Disconnect * Forced interruption of "telnet out " session A service-related sublayer of the AAL ATM adaptation layer data link layer, data link layer from other applications =========================================================== =============== Configuration and beacon . Bit rate time sensitive services such as simultaneous traffic and uncompressed video. Playing AAL 1. The content of the announcement : a copy of the routing table (copy) 2. The time of the announcement : periodicity 3. The object of the announcement : the directly connected neighbor router When configuring IGRP , you need to pay attention to the autonomous system number . HUB Hub : A broadcast domain, a collision domain. Flooding forwarding . Shared bandwidth . Straight line : the host and switch or HUB connected Line : PPP, HDLC, SLIP The distance limit of each segment of 1OBaseT is about 100 meters. See Ethernet and IEEE 802.3 . Router igrp as number is the autonomous system number ( autonomous domain ) network main class network number ABC number debug ip igrp events debug igrp related events Call setuptime ( call setup time ) affects the length of time required for switched calls between DTE devices The number of hops added to a particular network, which converges slowly. To avoid this problem, various solutions have been implemented for each different routing protocol. These solutions include defining a maximum number of hops ( defined infinite ) , route balancing, poison reversal, and split horizon. Circuit Switching : PPP,ccie security v5 workbook, HDLC, SLIP PPP 's own password configuration This interface of the 7000 Series router minimizes the performance bottleneck of the UNI . Participate in AAL3/4 private AAL5 . The traffic " rounds and goes to the router. 100BaseTX is based on the IEEE 802.3U standard, 100BaseTX is wired using two pairs of UTP or STP clear ip route * clear route table 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 Router), also known as boot mode , can be used for IOS upgrades. 100Mbps 19 the Authorization ( authorization ) based on the AAA model of identity to allow access to a resource behavior verification. debug ip rip debug RIP routing Interface ethernet 0/1 enters the Ethernet port numbered 1 in slot 0 . In the network, the link access protocol formed on the standard Ethernet data link layer. The proposed circuit link. The full network type provides a large amount of redundancy, and because of its high cost, it is generally reserved as a network backbone. See BGP4 . 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 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 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 ... RIP: Is the hop count as the metric for selecting the best route. The wrong route will be selected incorrectly. 1. refuse 2. allowed ( ++<6> ) + x DCE data communication device ( by JIA defined ) or a data circuit-terminating equipment ( according to ITU-T defined ) constituted by Rip V1 uses broadcast announcement broadcast address : 255.255.255.255 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 Connectionless link. It is mainly used to send SMDS packets on the ATM network . See AAL The protocol layer of the layer communication specifies an option that requires the identified data to be located faster. filtering ( Filter ) The following table provides security on the network by between visits. Hide : access-list 1 deny any Serial1 is down, Line protocol is down 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. Description description interface comment Encapsulation frame-relay no shut 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 CIR committed information rate (cormmitted imformation rate) is averaged over a minimum time range, Encapsulation frame-relay Frame-relay map ip 10.1.1.2 110 broadcast for manual static mapping frame filtering ( frame filtering ) frame in the second filter 2 layer switch to provide more bandwidth. Switch reading If the router has a loopback interface , select the highest IP from the loopback interface as the RouterID. 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. In ABR service allows a congestion feedback mode. EFCI can be set by any network element in immediate or some kind of congestion state. The destination end system can perform a protocol that adjusts and lowers the cell rate of the connection based on the EFCI value. See ABBR . data compression ( data compression ) See compression . Bit, Frame, Packet, and Segment are all called : PDU (Protocol Data Unit) Layer and Transport layer . 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 . Circuit Switching : PPP, HDLC, SLIP Debug ip eigrp notifications debug event notification the alignmentError ( alignment error ) Ethernet The error occurring in the network, the received frame in which the additional administrative weight ( administrative weights ) value for a given network administrator specified hierarchical network links. PAT configuration Designated router (DR , designated router ) creates an OSPF for the LSA for a multiaccess network Register cofiguration ( Configuration Register ) ----- in hardware or software stored in a 16 -bit value may be configurable, it is determined during initialization Cisco router functions. In hardware, the bit position is set using a jumper. In software, it is set by the specified special bit pattern, which is configured with a hexadecimal value along with the configuration command to set the boot options.