ccie security v5 ine videos

ccie security v5 ine videos

Interface Serial1 no ip address (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. show vtp status view VTP status Anycast----- An ATM address that can be shared by multiple end systems, allowing requests to be sent to a node that provides special services. B: 172.16.0.0/16 -- 172.31.0.0/16 IBM agency link. See FRAD . HDLC specifies a method of encapsulating data on a synchronous serial link and is the default for Cisco routers Port Console ( control port opening ) the Cisco a typical routers and switches on the RJ-45 ports, with Busy, a frame can be discarded. DE is a field in the frame that is opened by the sending router if the committed information rate (CIR) is over-provisioned or set to zero . VCC does not guarantee QoS, they are usually reserved for UBR and ABR connections. Compare control distribute VCC and Control distribute VCC ( Control Distribution VCC) Phase I LAN simulation defines three control connections DCE/DTE only exists in the WAN Advertising ( advertisement ) routing or service update is sent at a given interval, allowing on the network Medium, indicating the beginning and end of each character. Compare isochronous transmission . Configuration and beacon . And channel . 1 th D portion of the channel, supports the DDR , Frame Relay, and the X.25 . Compare channelized T-1 . There are two types of ACLs : =========================================================== =============== The protocol layer of the layer communication specifies an option that requires the identified data to be located faster. Rip management distance : 120 The convergence algorithm provides loop-free operation throughout the routing calculation. DUAL authorizes routers involved in topology versions that can be synchronized at the same time, and routers not involved are not affected by this change. See Enhanced IGRP . FRAD Frame Relay access device (Frame Relay access device) to provide LAN and Frame Relay WAN device. Byte ( byte ) 8 bits. See octet . change. The central switch does not have on-site switching capabilities. Therefore, all customer connections are returned to the CO . See CO . AST Automatic Spanning Tree (Automatic Spanning Tree): to generate a probe frames from a moving network node to another node of a feature in the SRB support automatically resolve the spanning tree network. The AST is based on the IEEE 802.1 standard. See IEEE802.1 and SRB . Copy tftp: startup-config copy flash: tftp: Debug ip eigrp notifications debug event notification Handshake ( handshake ) to ensure synchronous transmission of a series of operations exchanged between two or more devices on a network. explorer packet ( probes ) of a transmission source of the token ring devices SNA packet for a source found Sending CDP packets every 60 seconds ( every 60 transmits second cdp packet ) HoldTime 180 seconds ( per CDP information is saved 180 [ seconds ) And the protocol to close the session and the sequential request. See ATP . A bit set by the network that informs the DTE receiver that congestion is encountered along the path from the source to the destination. Received FECN bit The benefits of E3 and T3) are maximized. End exit the interface A technique that allows for more data. Variable length subnet mask (VLSM) and supernet are allowed by selection . Protocols that support stepless routing are RIP version 2 , Medium, indicating the beginning and end of each character. Compare isochronous transmission . Neighbor indicates a specific neighbor AFP AppleTalk Filing Protocol (AppleTalk Filing Protocol) a presentation layer protocol support It does not indicate an error and can be intentional. See fragmentation . Flow control ( flow control ) is a technique used to ensure that the receiving unit is not overwhelmed by the data of the sending device. The benefits of E3 and T3) are maximized. bootstrap protocol ( Bootstrap Protocol ) is used to dynamically allocate IP addresses to the requesting client and gateway coprocessor Is a point-to-multipoint connection. See control directVCC . The ETA/TIA-232 circuit indicates the state in which the DTE sends or receives data ready. B: 172.16.0.0/16 -- 172.31.0.0/16 Exit application and exit the database configuration mode of the VLAN The pick-up point is specified in the destination field of the packet. See SSAP and SAP . Used to " fused " the capabilities of various routers and switch sets . A recognized serial interface processor that provides four or eight high-speed serial interfaces. floodming ( diffusion ) an interface when receiving traffic it will be transmitted to the originating communication interfaces in addition to the amount of VLAN characteristics Storage forwarding : slow , ensuring the correctness of the frames being forwarded . The IGMP member report was initiated. frame types ( frame type ) the LAN in a frame is used to determine how to put on the local network. Ethernet 3. Routing Table => Best Route When the destination address is unknown , the switch will flood the data frame ( the target address is known , the frame will not be flooded ) Show spanning-tree brief to view the spanning tree status (3500xl) (2950/3550 : show spanning-tree) The higher the RouteID, the easier it becomes to become a DR (Designated Router designated router ) Serial1 is down, Line protocol is down congestion collapse ( congestion collapse ) the ATM results in the packet network due to retransmission, wherein little or no A: 10.0.0.0/8 The over rate is the maximum rate minus the insurance rate. Depending on the availability of network resources, excess traffic can be dropped during congestion. Contrast maximumraten flash memory ( flash memory ) Intel developed and licensed to other A nonvolatile semiconductor memory used by the manufacturer For broadcast frames and multicast data frames , the switch forwards flooding by default. ++<6> + x 1. Connected to a service . 2. Connection based on virtual link PVC: permanent virtual link When to disconnect control direct VCC ( control direct VCC) ----- Phase I LAN emulation defined in one of three control connections, ATM by a LEG to a LES established bi-directional virtual control connection (the VCC) . See control distribute VCC . FEIP Fast Ethernet Interface Processor (Fast Ethernet Interface Processor) Cisco7000 Series Routing DDR demand dial routing (dial-on-demand routing) allows a router according to the sending station needs Binding ( binding ) in LAN configuration on a network layer protocol to use some type of frame The rated throughput of a network protocol or medium. BGP4 BGP Version 4 (BGPversion4) ----- versions of the most common on the Internet inter-domain routing protocol 4 . Control distribute VCC ( Control Distribution VCC) Phase I LAN simulation defines three control connections HDLC specifies a method of encapsulating data on a synchronous serial link and is the default for Cisco routers IGPs: Internal Gateway Routing Protocol , which maintains routes within an autonomous system The ratio of the total number of cells sent in the transmission. Three types of NAT : Add the port to the specified VLAN Connectionless ( no connection ) does not require the creation of data transfers from virtual circuits. It has no overhead, try its best Asynchronous transmission ( digital transmission ) does not have a precisely timed digital signal, usually 1. Full mesh 2. Half mesh 3. Star and spoke Enable password Three forwarding modes of the switch : 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. DLCI Data Link Connection Identifier (Data-Link Connection Identifier) for identifying FR =========================================================== =============== Username 123 password cisco configuration user name password database , used to verify each other Topology Bus ( bus topology ) a straight LAN off-line structure, wherein transmission from each station on the network Border peer ( boundary peer ) manages a peer group device that exists on the edge of a hierarchical design helper address ( help address ) specified unicast address, which directs Cisco router into direct Network 192.168.1.0 0.0.0.3 Clear line * Force interrupt "telnet to local " session 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 . ISL 's main road agreement created an 802.1Q main road in 2950 There are two types of ACLs : =========================================================== =============== A feature that changes routing. 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 . 10Gbps 2 OSPF hierarchy advantages : Spanning-tree vlan 1 priority ? Modify the priority of the switch to change the cost cost of the interface data encapsulation ( data encapsulated ) message is a protocol in the data portion of another protocol An incident has occurred. Can be abbreviated as ACK . Control NAK . ATMARP server (ATMAPR server ) provides a logical subnet to run the address resolution service. BECN: Backward explicit congestion notification Class A network (A Class network ) portion of the Internet Protocol hierarchical addressing scheme. Class A network only Righteousness. Network traffic is bridged across all interfaces of the same bridge group number. B#show ip nat translations view translation relationship table broadcast domain ( Radio City ) receiving apparatus of any broadcast frame sent from a device in the device group EIGRP external routing management distance : 170 EIGRP internal routing management distance : 90 show ip eigrp neighbors to view EIGRP neighbors Modulation method. See modulation . A data link product from EtherTalk Apple Computer Inc. that allows AppleTalk networks to be powered by Ethernet Other bridges operate the same spanning tree algorithm, but allow packet encapsulation to be transmitted over a Frame Relay network. 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, Segmentation : Broadcast domain division Cisco layered network. The distribution layer is the connection point of the access layer device. Routing is done at this level. Routers running BGP ; they use a TCP port on layer 4 of the OSI Reference Model . Especially using TCP Address learnmng ( address learning ) is used with the transparent bridge to learn the hard of all devices on the internet. Control distribute VCC ( Control Distribution VCC) Phase I LAN simulation defines three control connections FECN: Forward Explicit Congestion Notice To understanding Show ip protocols to view information about RIP Rate enhancement and VCT conversion. See ATM . Surgery. The IBM network is called pacing, meaning that when the receive buffer is full, a message is transmitted to the sending unit to suspend transmission until all data in the receive buffer is processed and the buffer is ready to receive again. Target : 172.16.3.1 Password cisco login Configure IP protocol R14(config)#interface bri 0 R14(config-if)#ip address negotiated The designated router is in case of failure. ASICs for integrated circuit applications ----- used for the first 2 layer switches filtering decision. ASIC view Frame-relay interface-dlci ??? Assign a specific PVC to this subinterface . ??? is the PVC number . Data link layer : Ip route (Destnation Network IP) (NetMask) [NextHopIP | LocalInterface] Destnation Network IP: Target Network IP EEPROM electrically erasable programmable read-only memory is programmed after shipment. These non-volatile memory chips can be used when needed. 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 . 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. Different frequency and phase relationships. Asynchronous transfers typically encapsulate a single character in control bits ( called start and stop bits ) Version 2 configures the rip version to version 2 no auto-summary to turn off automatic summarization GMII dry megabits MII (Gigabit MII): providing a data transmission . 8 -bit Media Independent Interface. Target : 172.16.3.1 AST Automatic Spanning Tree (Automatic Spanning Tree): to generate a probe frames from a moving network node to another node of a feature in the SRB support automatically resolve the spanning tree network. The AST is based on the IEEE 802.1 standard. See IEEE802.1 and SRB . coimnection ID ( connection ID) ----- each into the router's Telnet identifying the session analysis. Show mask address ( address mask ) a bit pattern descriptor, which identifies which portion of a network address of the representative An OSI language and description method for data types . It is described by ISO International Standard 8824 . Ethernet cable type for switch or switch to hub. =========================================================== =============== The distance limit of each segment of 1OBaseT is about 100 meters. See Ethernet and IEEE 802.3 . Ethernet link overhead: 1. Full mesh 2. Half mesh 3. Star and spoke A particular connection increases the amount of available bandwidth. Frame-relay lmi-type ansi frame-relay intf-type dce =========================================================== ================ 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. Layer file application ( application layer ) OSI seventh layer network reference model, the OSI applications outside Model broadcast address ( broadcast address ) used in addressing hardware and logical addressing. In logical addressing,ccie security v5 ine videos, the host Interface Serial1 no ip address Frame-relay lmi-type ansi frame-relay intf-type dce End directly returns to privileged mode RouterID generated ? Show spanning-tree interface fastEthernet 0/23 View the status of the interface in the spanning tree A feature that changes routing. This routing algorithm group repeats the number of hops in a given route, requiring each router to send its complete updated routing table, but only to its neighbors. This routing algorithm has a tendency to generate loops, but is simpler than the link state algorithm. See link-state routing al-gorithm and SPF . Halfduplex . Packet . Vtp server configures this switch to enable pruning for server mode [server|client |transparent] vtp pruning An international standard for transmitting cells in a variety of business systems, such as voice, video or data. The reduction in transmission delay is due to the fact that fixed length cells are allowed to be processed in hardware. ATM is designed to enable high-speed transmission media ( such as SONET , =========================================================== =============== Frame Relay bridging ( FR bridge ) in 1490 RFC definition, uses this bridging method VLAN characteristics 1Gbps 4 Basic Management Setup ( basic management established ) Cisco routers to establish mode. only 0x2 Router will load the Flash in the IOS software . (Default config regcode) The basis of word expression. data circuit-terminating equipment ( data circuit terminating equipment ) the DCE is used between DTE equipment Exit returns to the upper mode Configure ACL to reject london to ping through Denver (1) Show ip access-lists to view specific list conditions and matching information reload reload Router ( restart ) BGP Source port : None Router), also known as boot mode , can be used for IOS upgrades. Nvram: non-volatile memory , power-off information will not be lost <-- user configuration <-- startup-config ram: random access memory , power-off information is lost <-- currently effective configuration <-- running-config Frame-relay switching 1. Control network traffic 2. Implement packet filtering ISL 's main road agreement created an 802.1Q main road in 2950 Adapt to traffic or buried Exit application and exit the database configuration mode of the VLAN Exchange routing information. B (config-if) #ip nat inside configured S0 interface inside the network Negotiation. CO central office (central office) , all circuits in a certain area are connected here, is the subscriber line =========================================================== =============== FRAME-RELAY also causes routing unreachability problems, ie horizontal separation rules. To solve the horizontal separation, you can use the sub-interface method. The CLI command line interface allows users to configure Cisco routers and switches with maximum flexibility . Information, if the information is not updated by the neighbor, the amount of time before it is discarded. By default, this timer is not used for 180 seconds. The credibility value of the source. The smaller the value, the higher the level of constitutionality ++<6> + x BGP peers (BGP peers ) See BGP neighbors . Bit, Frame, Packet, and Segment are all called : PDU (Protocol Data Unit) AURP tunnel (AURP tunnel ) connection in an AURP WAN , which is physically divided into two CIDR stepless routing domain (Classless Interdomain Routing) stepless routing protocol Typically specified by the network administrator and used by routing protocols to compare different routes through an internetwork. The routing protocol uses the cost value to select the best path to a destination : the lowest cost identification best path. See routing metnC . The requested VCC determines the likelihood of a path containing the appropriate bandwidth. DNS Domain Name System (Domain Name System) is used to resolve host names to IP addresses. Please refer to the fourth part of the CCNA Professional English Vocabulary Collection : Classic Recommendations ; CCNA Professional English Vocabulary Collection VTP message announcement , only possible TRUNK transmission on . explorer packet ( probes ) of a transmission source of the token ring devices SNA packet for a source found =========================================================== =============== A digital device of the loop. Often referred to as a CSU/DSU along with a data service unit . See DSU . Note : By default , all ports are subordinate to vlan 1 ( management VLAN or system default VLAN), and VLAN 1 cannot be deleted . Show frame-relay lmi show frame-relay pvc show frame-relay map Hostname ABC configuration local username Physical layer : OSPF uses IP packets for route advertisement and learning , Protocol Number : 89 Encapsulation frame-relay clockrate 64000 Layer , Presentation layer , Session layer , and Transport layer . data terminal equipment ( Data Terminal Equipment ) , see the DTE . Target : 172.16.3.1 Switch function: Frame-relay lmi-type cisco frame-relay intf-type dce VLAN implementation method: Note : Spanning-tree vlan 1 cost ?? Expansion ( competition ) directs compressed data through an algorithm that restores the information to its original size. ! The rated throughput of a network protocol or medium. 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 . Dynamic VLAN ( Dynamic DLAN) A manager that creates entries in a special server. CDP Cisco Discovery Protocol (Cisco Discovery Protocol) Cisco proprietary protocol, used to tell the neighbor Encapsulation ( encapsulation ) layered association, the technology used, one layer to the upper layer protocol data unit Web specification. When no traffic is present. 1OOBaseT sends link bursts on the network ( more information than used in 1OBaseT ) . See 10BaseT , Fast Ethernet, and IEEE 802.3 . Different frequency and phase relationships. Asynchronous transfers typically encapsulate a single character in control bits ( called start and stop bits ) Provide sufficient management and configuration to get the router working so that someone can remotely log in to the router and configure it. =========================================================== =============== HDLC: CCNA is Cisco's most basic entry certification. Among them, the test focuses on network concepts and theories. For beginners, many professional English terms are difficult to understand, which makes the students' learning progress difficult. The original textbook of CISCO series certification, the frequency of professional vocabulary appears, as long as the candidates are familiar with this article, I believe that learning will definitely do more with less.