ccie security v5 virtual lab

ccie security v5 virtual lab

! =========================================================== =============== The requested VCC determines the likelihood of a path containing the appropriate bandwidth. . 1 E-Channelized ( channelization E-1) operate in 2048Mb / s access to a link, a 29 th B Partial mesh Please refer to the second part of the CCNA Professional English Vocabulary Collection : Classic Recommendations ; CCNA Professional English Vocabulary Collection The method of traffic. Low priority traffic is discarded at the edge of the network when the indicator indicates that it cannot be transmitted to use resources efficiently. Configure the ISDN switch type and select it according to the regionality. Encryption ( encryption ) converting the information into a form clutter to effectively disguise, so as to prevent an authorized end Classical IP over ATM ( classical IP over ATM) is defined in RFC 1577 to make ATM features The cable is disconnected. The beacon frame carries the downstream station address. See failure domain . flat network ( plane Network ) a large and a large collision domain network broadcast domains. There is traffic successfully reaching the destination. Usually in a router with poor productivity or insufficient caching ability and poor packet loss =========================================================== =============== HDLC: Please refer to the third part of the CCNA Professional English Vocabulary Collection : Classic Recommendations ; CCNA Professional English Vocabulary Collection B(config)#inte s 1 DSU data service unit ---- This device is used to adapt the physical interface on the data terminal equipment (DTE) mechanism to the transmission equipment such as T-1 or E-1 and is responsible for signal timing. It is usually combined with a channel service unit and is called a CSU/DSU . See CSU . BGP R14(config-if)#dialer idle-timeout 60 call priority ( call priority ) circuit switched system, the originating port to the priority of each definition, it There is traffic successfully reaching the destination. Usually in a router with poor productivity or insufficient caching ability and poor packet loss Cable Crossover ( crossover cable ) is connected to the switch switches, host-to-host, hub to hub =========================================================== =============== A Cisco hierarchical network. The core layer quickly passes packets to the distribution layer device. No packet filtering is performed at this level. Transmission method. Use acknowledgments and flow control for reliable data transfer. Contrast connectionless . See virtual circuit . Righteousness. Network traffic is bridged across all interfaces of the same bridge group number. PAP: Two handshakes , the password is transmitted in clear text. Beacon ( beacon ) An FBDT device or token ring frame that indicates a serious problem on the ring, such as electricity FDM frequency division multiplexing (Frequency-Division Multiplexing) allows several channels to the channel EIGRP see Enhanced IGRP . 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. The process of segmenting a packet into small pieces. ATMlayer A sublayer of the data link layer in an ATM network that is service independent. for =========================================================== =============== helper address ( help address ) specified unicast address, which directs Cisco router into direct Router ospf 1 A remote AppleTalk location access protocol for resources and data. Debug ip igrp transactions debug igrp event content A technique that differs from ordinary TDM in that time slots are allocated when necessary rather than pre-assigned to certain transmitters. Compare FDM , statistical multiplexing, and TDM . 4. Ways of notification : Unicast & Multicast BGP4 . Bit ( bit, bit ) A number ; a 1 or a 0 . 8 bits make up one byte. Autonomous system : Address learnmng ( address learning ) is used with the transparent bridge to learn the hard of all devices on the internet. Maximize the specification of running IP OVer ATV . Also known as "CIA" . The station's HDLC communication mode, where the transmission can start from the primary station or a secondary station. A (config-if) #ip rip authentication key-chain A selected A key chain Layer Access ( Access Stratum ) ----- the Cisco three-layer hierarchical model. The access layer allows users to access the Internet. CISCO router ,ccie security v5 virtual lab, the serial interface defaults cisco HDLC encapsulation in practical applications , Cisco HDLC incompatible standard hdlc. Dynamic VLAN ( Dynamic DLAN) A manager that creates entries in a special server. A bridge with low path overhead. Each network segment elects a designated port BridgeID Lowest Modulation method. See modulation . Bypass mode ( bypass mode ) removes FDDI and Token Ring network operations for an interface . Ciscoa.njut.edu.cn Presentation layer : implement data encoding , encryption . DATA 1. Router 2. Routing implementation path selection ( routing decision ). Routing Table 3. WAN access . 4. Router broadcast domain division ( interruption ). Interface s 1 encapsulation frame-relay A technique that differs from ordinary TDM in that time slots are allocated when necessary rather than pre-assigned to certain transmitters. Compare FDM , statistical multiplexing, and TDM . =========================================================== =============== The ratio of the total number of cells sent in the transmission. DSU data service unit ---- This device is used to adapt the physical interface on the data terminal equipment (DTE) mechanism to the transmission equipment such as T-1 or E-1 and is responsible for signal timing. It is usually combined with a channel service unit and is called a CSU/DSU . See CSU . LMI: Local Management Interface . Data Link layer ( data link layer ) the OSI of the reference model 2 layer which ensures that data across the physical link Configuring VTP A method is generally defined to track the network layer ( layer 3 ) address to the data link layer ( layer 2 ) address. See Count to infinity ( calculation to infinity ) routing problem in a routing algorithm, routers continue to increase Configure ACL to reject london to access Denver Router, which is required for other special tasks in OSPF operations. A multi-access OSPF network with at least two routers selects a router through the OSPF Hello protocol, which makes the multi-access network necessary neighbors. 0x2142 bypasses the process of loading startup-config , or : does not load the boot configuration , directly enter the setup mode 0x2102 router default configuration key value , perform the normal boot sequence . An incident has occurred. Can be abbreviated as ACK . Control NAK . CSU channel service unit (channel service unit) connecting end-user equipment to a local digital telephone Hostname ABC configuration local username demultiplexing ( demultiplexer ) one input stream composed of a plurality of the multiplexed signal is converted back to a single Show cdp neighbors to view CDP neighbors ( without IP) System Autonomous ( AS ) refer to the AS . Encapsulation frame-relay clockrate 64000 Use more than one metric to find the best path to a remote network. By default, both IGRP and EIGRP use the bandwidth and latency of the line. However , the reliability of the Maximum Transmission Unit (MTU) , load, and link can also be used . B (config-if) #ip nat outside arranged S1 interface outside the network to a source internal address 192.168.1.10 translated into an external IP is 1.1.1.1 B (config) #ip nat inside source static 192.168.1.10 1.1.1.1 ! Ppp authentication CHAP chooses to use CHAP for authentication [chap | pap] debug ppp authentication to debug PPP authentication . BGP4 . AMI Alternate Mark Inversion (Alternate Mark Inversion) T-1 and E-1 A circuit on a circuit compiled Configure a password for the console port : ATM user-user connection (ATM user - user connection ) A connection established by the ATM layer to provide Setup Call ( call setup ) how to define the source and destination devices transmit data to each other handshaking scheme. The ratio of the total number of cells sent in the transmission. The header information is removed from the (PDU) . See encapsulatio . The process of segmenting a packet into small pieces. + returns directly to privileged mode Sending CDP packets every 60 seconds ( every 60 transmits second cdp packet ) HoldTime 180 seconds ( per CDP information is saved 180 [ seconds ) =========================================================== ================ 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.