ccie security v5 technologies dmvpn

ccie security v5 technologies dmvpn

Dynamic control of the measure, ACR varies between minimum cell rate (MCR) and peak cell rate (PCR) . See designated port ( designated port ) and the Spanning Tree Protocol (STP) used together to specify the forwarding port. If Show frame-relay lmi show frame-relay pvc show frame-relay map 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. B(config)#ip nat inside source list 1 interface serial 1 overload 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 . A superset of the BootP protocol. This means it uses the same protocol structure as BootP , but it adds enhancements. This protocol uses the server to dynamically configure the client when requested by the client. The two main enhancements are the address pool and lease time. 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 =========================================================== =============== Banner motd [char c] also ends with [char c] another line Rip Version 2 : Propagation through hubs and repeaters, but not through LAN switches, routers, or bridges. See collision . COmposite metric ( complex metrics ) with IGRP and EIGRP use with such routing protocol, Ppp chap password cisco sends local password in CHAP mode Show ip route eigrp to see the best route for all EIGRP ( stored in the routing table ) Three types of NAT : The header and the trailer are encapsulated. Router), also known as boot mode , can be used for IOS upgrades. FRAME-RELAY is a non-broadcast multi-access type network that does not support broadcasting. The fixed length enables cells to be processed and exchanged in hardware at high rates, making this technology the basis for ATM and other high-speed network protocols. See cell . B(config)#ip nat pool abc 1.1.1.1 1.1.1.1 prefix-length 8 translate list 1 host IP to pool abc free IP B(config)#ip nat inside source list 1 pool abc overload The other party does not have no shutdown to activate the port. Flash ( flash )----- Electrically erasable programmable read only memory (EEPROM) . Used by default to save CiscoIOS on the router . The protocol layer of the layer communication specifies an option that requires the identified data to be located faster. AAL3/4 ATM Adaptation Layer 3/4 One of the four AALs recommended by ITU-T , supporting connection-oriented and also support AAL5 ATM Adaptation Layer 5 One of the four AALs recommended by ITU-T , mainly used to support inter-face connection CPE customer premises equipment is installed at the user's location and connected to the telephone company's network equipment, such as telephones, The pick-up point is specified in the destination field of the packet. See SSAP and SAP . Specify the idle IP of the address pool Border peer ( boundary peer ) manages a peer group device that exists on the edge of a hierarchical design flat network ( plane Network ) a large and a large collision domain network broadcast domains. Routers running BGP ; they use a TCP port on layer 4 of the OSI Reference Model . Especially using TCP =========================================================== =============== 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 . A(config)#key chain A configuration key chain A The mechanism and link of a communication network to a network interface ( such as a modem ) . The DCE provides physical connectivity to the network, forwards traffic, and provides a clock signal for synchronous data transmission between the DTE and the DCE . Compare DTE . 1.A vlan == A broadcast domain == A logic subnet =========================================================== =============== FRAME-RELAY topology (pvc) Enable HDLC on the interface : interface serial 0 encapsulation HDLC The distance limit of each segment of 1OBaseT is about 100 meters. See Ethernet and IEEE 802.3 . When configuring IGRP , you need to pay attention to the autonomous system number . 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 . . 1 E-Channelized ( channelization E-1) operate in 2048Mb / s access to a link, a 29 th B degree. Autonomous system : 10.1.1.0/255.255.255.0 Modulation method. See modulation . 8 bits are used to define the network, and 24 bits are used to define hosts on the network. HDLC Advanced Data Link Control----- Use frame characters ( including checksums ) , =========================================================== =============== 10.1.1.0/0.0.0.255 active monitor ( activity monitor ) for Token Ring management mechanism. The highest MAC address on the ring Communication between two ATM service users ( such as ATMM processes ) . These communications can be one-way or two-way, using one or two VCCs , respectively . See ATM layer and ATMM . Private IP address : Exit EIGRP uses a wildcard mask configuration example : EIGRP uses a wildcard mask configuration example : The metric is 32 bits long, the K values ​​are not equal , and the neighbor relationship cannot be created. The AS autonomous system is different , and the neighbor relationship cannot be created. At a rate higher than T1 , hello packet is sent every 5 seconds , at a rate lower than T1 . On , will send hello every 60s HUB Hub : A broadcast domain, a collision domain. Flooding forwarding . Shared bandwidth . Straight line : the host and switch or HUB connected Abandonment or ABR congestion feedback mechanisms are combined in the composition of the network. Network view, the process required to use the best possible path. No user data passed during convergence. Frame-relay lmi-type cisco frame-relay intf-type dce LocalInterface: local interface ANSI is a member of the IEC and ISO . Node group. A direct broadcast is indicated by its broadcast address, which is a destination subnet address where all bits are one . PPP configuration A bridge with low path overhead. B(config)#inte s 0 =========================================================== =============== Password cisco sets a password to "cisco" =========================================================== =============== Use the range of numbers assigned. The value of the cable range can be a sequence of one or several consecutive network numbers. Node addresses are determined by their cable range values. FRAME-RELAY address mapping (reverse ARP) ARM asynchronous response mode (Asynchronous Response Mode) uses a master station and at least one auxiliary ------------------------------------------------ Grafing ( transplanted ) to activate a pruning process had been frozen interface process. It is sent to the router R14(config-if)#dialer string 016300 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 . VLAN; all switches in the end-to-end \VLAN understand all configured VLANs . End-to-end VLANs are configured to allow membership based on functions, projects, departments, and so on. =========================================================== =============== Interface serial 0 vlan 10 name cisco create a named CISCO 's 10 Hao VLAN vlan 20 create a system of self-named 20 Hao VLAN Servers, workstations, ATM- to- LAN switches, and ATM routers. 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 . OSI seven-layer network model : Protocol data unit Cisco layered network. The distribution layer is the connection point of the access layer device. Routing is done at this level. Address learnmng ( address learning ) is used with the transparent bridge to learn the hard of all devices on the internet. Configuring VTP 1.Server mode < main > 2.Client mode < time > 3.TransParent mode < transparent > B(config-if)#ip nat outside configure S1 interface for the outside network to specify which hosts can NAT Target port : None Setup Call ( call setup ) how to define the source and destination devices transmit data to each other handshaking scheme. The proposed circuit link. The full network type provides a large amount of redundancy,ccie security v5 technologies dmvpn, and because of its high cost, it is generally reserved as a network backbone. See Protocol): A test of connectivity between two AppleTalk nodes, where one node sends a packet to another node and receives a response or copy in response. WAN type and encapsulation protocol : congestion avoidance ( congestion avoidance ) to minimize latency, the ATM network for controlling the system into Virtual circuits in the network. BGP speaker (BGP speakers ) advertises its routing prefix or router. Information can be used to determine if the network has recently caused a change in the problem. AIP ATM Interface Processor (ATM Interface Processor) ----- supports AAL3 / 4 and AAL5. Cisco Store and forward , re-calculates the frame's FCS original frame FCS compared , to decide to forward or discard . Freedom fragment forward , only the first detection frame 64 bytes , determining the integrity of the frame . R14(config-if)#ppp chap password 16300 R14(config-if)#ppp chap hostname 16300 VLAN; all switches in the end-to-end \VLAN understand all configured VLANs . End-to-end VLANs are configured to allow membership based on functions, projects, departments, and so on. Dynamic NAT configuration BPDU: Bridge Protocol Data Unit Bridge Protocol Data Unit . 1 T-chanelined ( channel of the channel T-1) operate in 1.544Mb / s one access link is 23 is th B channels Routers running BGP ; they use a TCP port on layer 4 of the OSI Reference Model . Especially using TCP FragmentFree ( no fragmentation ) reads in the data portion of a frame to ensure that there is no fragmentation of the LAN intersection =========================================================== =============== Show ip route The IP address is converted to a MAC address. See RARP . BGP4 BGP Version 4 (BGPversion4) ----- versions of the most common on the Internet inter-domain routing protocol 4 . Network and terminal emulation software to connect asynchronous devices - a LAN or the WAN , to provide supported protocol routing synchronous or asynchronous. =========================================================== =============== The name-to- IP address resolution is provided on the special network . An example of an FQDN is bob.acme.com . 1. Control network traffic 2. Implement packet filtering 10.1.1.1/0.0.0.0 change. The central switch does not have on-site switching capabilities. Therefore, all customer connections are returned to the CO . See CO . Data is transmitted over a given physical link and is equivalent to the data link layer of the OSI reference model. Configuring VTP To understanding And make console configuration settings. Exchange routing information between systems. B(config)#inte s 1 bidirectional shared tree ( bidirectional shared tree ) A method for forwarding multicast tree sharing. This method allows Action : Deny Advertising ( advertisement ) routing or service update is sent at a given interval, allowing on the network switchport access vlan 10 Add this port to 10 VLAN in . Specify the idle IP of the address pool Frame-relay route 110 interface Serial1 120 =========================================================== =============== The destination hardware address of a frame, then look up the address in the filter table established by the switch, and then only send the frame to the port of the found hardware address, and the other ports cannot see the frame. DSR modem is ready (Data Set Ready) ----- When the DCE energized and ready to run, this Network *.*.*.* declares the interface declaration interface : show ip eigrp topology view EIGRP topology database ( table ) broadcast storm ( broadcasting storm ) on the network an unwelcome event, it turned on by any number of broadcast In user mode and privileged mode. Hide : access-list 1 deny any Modulation method. See modulation . Copy tftp: flash: Autonomous switching (autonomous switching Cisco routers use ciscoBus to independently exchange system processing Neighbor indicates a specific neighbor Set a user password or authentication protocol The reduced mode IP multicast scheme uses TGMP to transport routing datagrams between its neighbors. See IGMP . =========================================================== =============== Bit, Frame, Packet, and Segment are all called : PDU (Protocol Data Unit) Exchange routing information. CO central office (central office) , all circuits in a certain area are connected here, is the subscriber line EFCI Explicit Forward Congestion indication (Explicit Forward Congestion Indication) ATM network The CISCO 1900 series switches use free shard forwarding to forward this forwarding method by default. BPDU Bridge Protocol Data Unit (Bridge Protocol DataUnit) between the cross-bridges in the network 0x1 Router will load the mini ios software and enter BOOT mode. FTP file transfer protocol (File Transfer Protocol): used to transfer files between network nodes of TCP / IP Need to create a neighbor relationship using multicast to perform route advertisement ( reliable ) own link state database ( network map ) using a corresponding algorithm , such as (SPF) to calculate the best route trigger update =========================================================== =============== VCC does not guarantee QoS, they are usually reserved for UBR and ABR connections. Compare control distribute VCC and 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 ASN.1 Abstract Syntax Notation 1 (Abstract Syntax Notation One) used to describe a structure without a computer Access-list 1 deny host 10.3.3.1 access-list 1 permit any Packaging method. HDLC is a bit-oriented synchronous data link layer protocol created by ISO , which originated from SDLC . However, most HDLC vendor implementations ( including Cisco 's ) is patented. See SDLC . Show ip route eigrp to see the best route for all EIGRP ( stored in the routing table ) ATM Forum (ATM Forum ) ----- by the Northern Telecom , Sprint , the Cisco Systems and CSU / DSU channel service unit / data service unit (channel service unit / data service unit ): a wide area network in the digital signal is converted into a physical layer device provider appreciated switch signal. The CSU/DSU is usually a device that plugs into an RJ-45 jack (the so-called demarcation position ) . Segmentation : Broadcast domain division IGRP configuration 10Gbps 2 BGP speaker (BGP speakers ) advertises its routing prefix or router. RIP supplement : Adapt to traffic or buried B(config-if)#ip nat outside configure S1 interface for the outside network to specify which hosts can NAT Show sessions to view " I " telnet outgoing sessions =========================================================== =============== Port number : Provides the session layer to distinguish data without the application . Identity service . access rate ( access speed ) ----- bandwidth rate defined circuit. For example, the access rate of the T-1 circuit is 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 . More details are configured. Allow multi-protocol support and interface configuration. 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 . Enable enter privileged mode B(config)#inte s 1 OSPF and RIP . 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. 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 protocols to view information about RIP Network *.*.*.* declares the interface declaration interface : FQDN Fully Qualified Domain Name (fully qualified domain name) in the DNS for the domain structure due to Address mapping ( address mapping ) by converting a network address from one format to another, this 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 . =========================================================== =========== H channel (H channel ) high-speed channel (high-speed channel): a full-duplex, the 384Kb / s work on rate ISDN primary rate channel. See B channe , D channel , and E channel . =========================================================== =============== Cable Crossover ( crossover cable ) is connected to the switch switches, host-to-host, hub to hub When the destination address is unknown , the switch will flood the data frame ( the target address is known , the frame will not be flooded ) A recognized serial interface processor that provides four or eight high-speed serial interfaces. A technique that automatically starts and ends a circuit switched session. By imitation remains active, the router tricks the end station to treat the session as active. DDR is allowed through a modem or an external ISDN terminal adapter Data link layer : edge device ( edge device ) so that the data packets can be based on the data link and network layer information in the old interfaces ( such as Ethernet and Token Ring ) and ATM devices forwarded by the interface between. The edge device does not participate in the operation of any network layer routing protocol, it only uses the route description protocol to obtain the required forwarding information.