ccie security lab v550

ccie security lab v550

Asynchronous transmission ( digital transmission ) does not have a precisely timed digital signal, usually LocalInterface: local interface Discover the best route for traffic from the source to its destination. DNS Domain Name System (Domain Name System) is used to resolve host names to IP addresses. There is traffic successfully reaching the destination. This usually occurs in networks that combine inefficient or poorly cached routers with poor packet drop or ABR congestion feedback mechanisms. connection-oriented ( connection-oriented ) to establish a virtual circuit data before any data transmission A (config) #inte s 1 enters s 1 interface VLAN . The frame flag does this. The switch can then command the frame to the appropriate port. Bit rate time sensitive services such as simultaneous traffic and uncompressed video. Playing AAL 4. Notification method : Broadcast (RIPv1, IGRP) rule mechanism : 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 . Configuration is consistent . Code IP over ATN equipment. 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 . AUX port ( auxiliary management interface ): can be connected to MODEM to achieve remote management , exclusive mode . analog transmission ( analog transmission ) represented by different combinations of the information signal amplitude, frequency and phase =========================================================== =============== EIGRP 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. Layer Access ( Access Stratum ) ----- the Cisco three-layer hierarchical model. The access layer allows users to access the Internet. CIR committed information rate (cormmitted imformation rate) is averaged over a minimum time range, 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. Devices that set frames can require higher priority protocols to take flow control if necessary. See BECN . CLP cell loss priority (Cell Loss Priority) ATM channel is determined when the header message element cell network congestion E-1---- A wide-area digital transmission scheme commonly used in Europe to transmit data at a rate of 2.048 Mb/s . AAL1 ATM Adaptation Layer 1 One of the four AALs recommended by ITU-T for connection-oriented, constant Advertising ( advertisement ) routing or service update is sent at a given interval,ccie security lab v550, allowing on the network expedited delivery ( accelerated delivery ) may be the same or other layers of protocol of a different network device in The path is activated on an analog modem. Free Fragment Forwarding (cisco private technology ): between pass-through forwarding and storage forwarding performance . BISDN broadband TSDN (Broadband ISDN) ----- to manage high-bandwidth technologies ( such as video ) created The process number does not affect the OSPF notification learning Frame ( frame ) logical unit of information transmitted on the transmission medium by the data link layer. The term is often involved Immediate execution , immediate effect Crossover : switches and switches , switches and HUB connections EGPs: External Gateway Routing Protocol , Maintaining Routes between Autonomous Systems EPROM erasable programmable read-only memory----- Piece address. The switch then filters the network with a known hardware address (MAC) EEPROM electrically erasable programmable read-only memory is programmed after shipment. These non-volatile memory chips can be used when needed. 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. The bit, that is, a number cannot be divisible by 8 . Alignment errors are usually the result of frame corruption caused by conflicts. CPCS CPCS layer (Common Part Convergence Sublayer) two business Cisco features. Compare process switching . Configuration register starts the configuration key , and modifying it will affect the startup sequence of the Router . =========================================================== =============== The sessions 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 . The default route ( default route ) is used to guide the static routing table entry of the frame, and its next hop is not in accounting ( statistics ) ----- AAA one of the three components. Statistics provide auditing and recording skills for security models 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 . TCP ( Transmission Control Protocol ), connection-oriented , with retransmission mechanism , reliable transmission =========================================================== =============== Protocol : ICMP (Internet Control Message protocol) 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 . ACL for packet processing : A Cisco hierarchical network. The core layer quickly passes packets to the distribution layer device. No packet filtering is performed at this level. COmposite metric ( complex metrics ) with IGRP and EIGRP use with such routing protocol, Add the port to the specified VLAN 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 . ! Adopt standard : Spanning-tree vlan 1 cost ?? ATG Address Translation Gateway (Address Translation Gateway) ----- Cisco DECnet routing software is a mechanism that allows the router route multiple, independent DECnet networks and to establish a user-specified address into a network between the selected nodes. =========================================================== =============== Ip add 10.1.1.1 255.255.255.0 100Mbps 19 Transmission method. Use acknowledgments and flow control for reliable data transfer. Contrast connectionless . See virtual circuit . Show cdp interface serial 1 View the CDP information of the interface. Data rate between 622Mb/s and higher. See BRI , ISDN, and PRI . =========================================================== =============== Autonomous switching (autonomous switching Cisco routers use ciscoBus to independently exchange system processing Basic FRAME-RELAY configuration . 1 E-Channelized ( channelization E-1) operate in 2048Mb / s access to a link, a 29 th B CDVT call delay variation tolerance (Cell Delay Variation Tolerance) ATM network for communications lOBaseT , Fast Ethernet, and lEEE . VLAN characteristics Line conosle 0 to consolo 0 B(config-if)#ip nat outside configure S1 interface for the outside network to specify which hosts can NAT CTD Cell Transfer Delay (Cell Transfer Delay) for ATM a given connection is used in the source Configuration with multipoint subinterface Endpoint ATM (ATM endpoint ) beginning or end of an ATM network is connected. ATM endpoints include can Show ip ospf neighbor to view neighbors (NeighborID is RouterID) Frame ( frame ) logical unit of information transmitted on the transmission medium by the data link layer. The term is often involved =========================================================== =============== =========================================================== ================ 10Mbps 100 Show ip route to view the current routing table to configure static routes : 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 .