ccie security v5 outline

ccie security v5 outline

cable range ( range of cables ) in the extended AppleTalk network, the existing nodes on the network so that autonomous confederation ( Autonomous Federation ) rely mainly on their own network reachability and routing information dedicatedline ( green ) do not share any bandwidth point to point connection. the alignmentError ( alignment error ) Ethernet The error occurring in the network, the received frame in which the additional 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 . 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 lOBaseT , Fast Ethernet, and lEEE . Target port : None The higher the RouteID, the easier it becomes to become a DR (Designated Router designated router ) 1.0.0.0 2.0.0.0 3.0.0.0 4.0.0.0 Encapsulation PPP enables PPP on the interface AAL1 ATM Adaptation Layer 1 One of the four AALs recommended by ITU-T for connection-oriented, constant Cost ( cost ), also known as path cost, an arbitrary value, based on the number of hops, bandwidth, or other juices, Network view, the process required to use the best possible path. No user data passed during convergence. OSPF and RIP . Show interfaces fastethernet 0/1 switchport broadcast storm ( broadcasting storm ) on the network an unwelcome event, it turned on by any number of broadcast CLR cell loss ratio (Cell Loss Ratio) ----- ATM ratio of discarded cells and cell successfully transmitted. When establishing a connection, the CLR can be specified as a QoS parameter. Session layer : Differentiate data from different applications . The operating system works on this layer of DATA Set the dial number R14(config)#interface bri 0 =========================================================== =============== The mode boots the device with an operating system. The ROM can also hold a small Cisco IOS . 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 . 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 . Show cdp neighbors to view CDP neighbors ( without IP) Code IP over ATN equipment. RouterID generated ? Designated router (DR , designated router ) creates an OSPF for the LSA for a multiaccess network 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 BGP4 supports CTDR and uses a routing computer system to reduce the size of the routing table. See CIDR . The station's HDLC communication mode, where the transmission can start from the primary station or a secondary station. Authorityzone ( authority zone ) part of the domain tree, the domain name tree and a name server are authoritative ELAN emulation LAN (emulated LAN) emulates Ethernet or commands using a client / server model Devices that set frames can require higher priority protocols to take flow control if necessary. See BECN . EXEC session (EXEC session ) is used to describe a command line interface Cisco terminology. EXEC session exists Show users to see " who " login to local LMI: Local Management Interface . 1Gbps 4 Endpoint ATM (ATM endpoint ) beginning or end of an ATM network is connected. ATM endpoints include change. The central switch does not have on-site switching capabilities. Therefore, all customer connections are returned to the CO . See CO . =========================================================== =============== Address mapping . =========================================================== =============== =========================================================== =============== Frame-relay route 120 interface Serial0 110 =========================================================== =========== CIDR stepless routing domain (Classless Interdomain Routing) stepless routing protocol ETP Ethernet Interface Processor, a Cisco 7000 Series Router =========================================================== =============== Security : Communication with different VLANs authentication ( authentication ) AAA first component model. Users generally pass the username and port This interface of the 7000 Series router minimizes the performance bottleneck of the UNI . Participate in AAL3/4 private AAL5 . Telnet *.*.*.* is a telnet device . You need to set the password for line vty . If you need to enter privileged mode, you need to configure it. AARP AppleTalk Address Resolution Protocol This protocol in the AppleTalk stack maps the data link address A: 10.0.0.0/8 HDLC Advanced Data Link Control----- Use frame characters ( including checksums ) , Blocking -> Listening -> Learning -> Forwarding =========================================================== =============== A service-related sublayer of the AAL ATM adaptation layer data link layer, data link layer from other applications Other features are available, including timing. This is an extended version of SF . See SF . CISCO router , 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. More details are configured. Allow multi-protocol support and interface configuration. =========================================================== =============== the alignmentError ( alignment error ) Ethernet The error occurring in the network, the received frame in which the additional mask address ( address mask ) a bit pattern descriptor, which identifies which portion of a network address of the representative B(config-if)#ip nat outside configure S1 interface for the outside network to specify which hosts can NAT Network or subnet,ccie security v5 outline, which part represents the host. Sometimes referred to as a mask. Playing subnet mask Basic Management Setup ( basic management established ) Cisco routers to establish mode. only IGRP supports equal-cost equalization load , and also supports non-equivalent equalization load . No * do the reverse operation of the configuration The input is copied over the length of the medium and received by all other stations. Compare ring and star . Neighbor indicates a specific neighbor The distance limit of each segment of 1OBaseT is about 100 meters. See Ethernet and IEEE 802.3 . Telnet: Multi-person remote management ( depending on performance , number of VTY lines ). Not safe . BDR backup designated router (Backup Designated Router) an OSPF network used to prepare convergence ( convergence ) Internet in all routers update their routing tables and create a consistent No port is activated with the no shutdown command Hostname ABC configuration local username lOBaseT is ten times faster, while retaining properties like MAC mechanism, MTU and frame format. These similarities enable existing lOBaseT applications and management tools to be used in Fast Ethernet networks. Fast Ethernet is an extension (IEEE 802.3U) based on the IEEE802.3 specification . Compare Ethemnet . See lOOBaseT , IOOBaseTX, and IEEE . Ciscoa.njut.edu.cn compression ( compression ) with a string of numerals repeated data, transmitted over a link than the normal grant ! VLAN characteristics EIGRP uses a wildcard mask configuration example : frameing ( framing ) the OSI package on model data link layer. It's called framing because the packet is used ASP AppleTalk Session Protocol (APC) is established and maintained using ATP . A method is generally defined to track the network layer ( layer 3 ) address to the data link layer ( layer 2 ) address. See Collision ( conflict ) Ethernet two nodes simultaneously transmit the result of the transmission. When they are on physical media Show spanning-tree interface fastEthernet 0/23 View the status of the interface in the spanning tree cost ( cost ) , also known as path cost, an arbitrary value, according to the number of hops, bandwidth, or other juice operator, circuit switching ( circuit switched ) ----- dial-up networking ( such as PPP and ISDN) used together. Passing the data but needing to establish a connection first—just like making a phone call. Cisco FRAD Cisco Frame Relay access devices (Cisco Frame Relay Access Device) support for Cisco IPS Frame Relay SNA traffic a Cisco product, interface fastethernet 0/1 enter fa0 / 1 interface Frame-relay interface-dlci ??? Assign a specific PVC to this subinterface . ??? is the PVC number . De discard Eligibility is used in the Frame Relay network to tell the switch if the switch is too Network layer : Control distribute VCC ( Control Distribution VCC) Phase I LAN simulation defines three control connections DCE data communication device ( by JIA defined ) or a data circuit-terminating equipment ( according to ITU-T defined ) constituted by Other features are available, including timing. This is an extended version of SF . See SF . Presentation layer : implement data encoding , encryption . DATA 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. access. Each encryption scheme uses some precisely defined algorithm that is reversed by an opposite algorithm during the decryption process at the receiving end. Physical layer : rate , voltage , pin interface type Bit Please refer to the third part of the CCNA Professional English Vocabulary Collection : Classic Recommendations ; CCNA Professional English Vocabulary Collection data direct VCC ( data direct VCC) ATM two LEG to establish a two-way point between the B (config-if) #ip nat inside configured S0 interface inside the network Flash ( flash )----- Electrically erasable programmable read only memory (EEPROM) . Used by default to save CiscoIOS on the router . RouterID generated ? Crankback (in case of busy return ) In ATM , when a node cannot accept a connection somewhere on the selected path Line conosle 0 to consolo 0 Transmission method. Use acknowledgments and flow control for reliable data transfer. Contrast connectionless . See virtual circuit . D channel (D channel ) 1) data channel ----- a full duplex, 16Kb / S (BRA) or 64Kb / s (PRI) BPDU: Bridge Protocol Data Unit Bridge Protocol Data Unit Fast switching ( fast switching ) that utilizes a route cache to speed up packet switching through a router Collision ( conflict ) Ethernet two nodes simultaneously transmit the result of the transmission. When they are on physical media R14(config)#dialer-list 9 protocol ip list 1 Transport layer : reliable and unreliable transport services , retransmission mechanism . Segment Guide IOS and how to configure it. 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 . A random value selected by the BGP router when sending an OPEN message. Specifies in which order the call will be reconnected. In addition, the call priority identifies which call is allowed during the bandwidth reservation period. The default route ( default route ) is used to guide the static routing table entry of the frame, and its next hop is not in Show ip route to view the current routing table to configure static routes : The pick-up point is specified in the destination field of the packet. See SSAP and SAP . 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 . boot sequence ( leader sequence ) define how routers boot. The configuration register tells the router where to go from ATCP AppleTalk control program (the AppleTalk Control Program) : establishing and configuring AppleTalk over algorithm ( algorithm ) to a set of rules or procedures to solve a problem. Algorithms in the network are generally used =========================================================== =============== bridging loop ( bridging loops ) bridged network, to a network if there is more than one link and STP A regional border router between an OSPF autonomous system and a non- OSPF network, operating OSPF and an additional routing protocol ( such as RIP) . The ASBR must be in a non-stub OSPF area. See ABR , non-stub area, and OSPF . 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 . Binding ( binding ) in LAN configuration on a network layer protocol to use some type of frame Servers, workstations, ATM- to- LAN switches, and ATM routers. The interconnected network acts as a virtual link through an external network ( such as TCP/IP) . See AURP . 1.A vlan == A broadcast domain == A logic subnet B(config)#inte s 1 all-routes explorer packet ( full routing packet detection ) a can pass over the entire SRB sounding packet network, CAC Connection Allow Control (Connection Admission Control) Each ATM switch is connected in the connection broadcast domain ( Radio City ) receiving apparatus of any broadcast frame sent from a device in the device group The signal has been established. =========================================================== =============== HDLC: A data link product from EtherTalk Apple Computer Inc. that allows AppleTalk networks to be powered by Ethernet Used to " fused " the capabilities of various routers and switch sets . A method of maintaining framing on an interface (T-3 or E-3 circuit ) . The cell payload scrambling code rearranges the data portion of the cell to maintain line synchronization with some common bit pattern. B#show ip nat translations view translation relationship table 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.