ine ccie security v5 certcollection

ine ccie security v5 certcollection

B(config-if)#ip nat outside configure S1 interface for the outside network to specify which hosts can NAT distance-vector routing algorithm ( Distance Vector Routing Algorithm ) In order to find the shortest path, =========================================================== =============== A method is generally defined to track the network layer ( layer 3 ) address to the data link layer ( layer 2 ) address. See =========================================================== =============== The process of segmenting a packet into small pieces. 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, The cable is disconnected. The beacon frame carries the downstream station address. See failure domain . 1.544Mb/s . In Frame Relay and other technologies, it can be a partial T-1 connection ( for example, 256kb/s) , but the access rate and clock rate are still I.544Mb/S. Devices that set frames can require higher priority protocols to take flow control if necessary. See BECN . R14(config-if)#dialer string 016300 B (config-if) #ip nat inside configured S0 interface inside the network ( ++<6> ) + x cost ( cost ) , also known as path cost, an arbitrary value, according to the number of hops, bandwidth, or other juice operator, show vtp status view VTP status A(config)#key chain A configuration key chain A Information, if the information is not updated by the neighbor,ine ccie security v5 certcollection, the amount of time before it is discarded. By default, this timer is not used for 180 seconds. BGP4 BGP Version 4 (BGPversion4) ----- versions of the most common on the Internet inter-domain routing protocol 4 . The header and the trailer are encapsulated. Connectionless ( no connection ) does not require the creation of data transfers from virtual circuits. It has no overhead, try its best Acknowledgment ( acknowledgment ) is transmitted from one network device to another network device authentication, showed a Config-register 0x2142 modify the startup configuration key ANSI American National Standards Institute (American National Standards Institute) by the United States, government Storage forwarding : slow , ensuring the correctness of the frames being forwarded . The process of segmenting a packet into small pieces. Router rip selection rip as the routing protocol FECN: Forward Explicit Congestion Notice Network layer : Scalability and improved performance and usability enhancements. Corelayer The top layer of the Cisco three-tier hierarchical model that helps design, build, and maintain a D channel (D channel ) 1) data channel ----- a full duplex, 16Kb / S (BRA) or 64Kb / s (PRI) =========================================================== =============== cut-through frame switching ( straight-frame exchange ) A frame of data flowing through the switch switching technology The interconnected network acts as a virtual link through an external network ( such as TCP/IP) . See AURP . Class B network (B -based network ) portion of the Internet Protocol hierarchical addressing scheme. Class B network has 16 Anycast----- An ATM address that can be shared by multiple end systems, allowing requests to be sent to a node that provides special services. Show ip access-lists to view specific list conditions and matching information border router ( border router ) ----- generally Open Shortest Path First (OSPF) is defined as a region connected to the backbone routers region. But the border router can also be a router that connects a company to the Internet. See AAL3/4 ATM Adaptation Layer 3/4 One of the four AALs recommended by ITU-T , supporting connection-oriented and also support The header and the trailer are encapsulated. RIP supplement : compression ( compression ) with a string of numerals repeated data, transmitted over a link than the normal grant Boot ROM ( Boot ROM) for the router in order to release the boot mode router. Then guide A subsection that depicts the type and format of the IDI portion of the ATM address . =========================================================== =============== Partial mesh A logical collection of information. IP datagrams have become the main unit of information for the Internet. In the OSI layers reference model, the term cell (Cell) , frame (Frame) , the message (message) and the segment (segment) also define these logical information groupings. CDVT call delay variation tolerance (Cell Delay Variation Tolerance) ATM network for communications The station's HDLC communication mode, where the transmission can start from the primary station or a secondary station. Autonomous system : 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 . Access-list 1 deny host 10.3.3.1 access-list 1 permit any Protocol : ICMP (Internet Control Message protocol) Frame ( frame ) logical unit of information transmitted on the transmission medium by the data link layer. The term is often involved The minimum information transmission rate agreed by the Frame Relay network, measured in b/s . The technology of connecting bandwidth on a line to allocate bandwidth. See TDM , ATDM, and statistical multiplexing . Show cdp neighbors to view CDP neighbors ( without IP) B#show ip nat translations view translation relationship table the fragment ( fragment ) of a large packet is intentionally divided into any portion of the small pieces. a packet fragment . 1 E-Channelized ( channelization E-1) operate in 2048Mb / s access to a link, a 29 th B FECN forward explicit explicit notification (Forward Explicit Congestion Notification) by Frame Relay Network Show ip access-lists to view specific list conditions and matching information ( ++<6> ) + x WAN type and encapsulation protocol : explorer frame ( detection frame ) and the source-route bridging found to serve to bridge before a remote transmission explorer packet ( probes ) of a transmission source of the token ring devices SNA packet for a source found VLAN features : Configuring ACL allows london to telnet to Denver (2) At least two non-adjacent AppleTalk network through an external network ( such as TCP / IP) is a connection establishment AppleTalk the WAN . This connection is called an AURP tunnel. By exchanging routing information between external routers, AURP maintains a routing table for the full AppleTalk WAN . See AURP tunneL . Interface Serial1 no ip address 1.0.0.0 2.0.0.0 3.0.0.0 4.0.0.0 =========================================================== =============== Servers, workstations, ATM- to- LAN switches, and ATM routers. R14(config-if)#dialer idle-timeout 60 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 . Presentation layer : implement data encoding , encryption . DATA 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, 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, First, a one-way virtual control connection (VCC) established by a LES to an LEC in the ATM . Usually, the VCC Setup manually enter the setup configuration mode Show ip access-lists to view specific list conditions and matching information 1. Port-based implementation , static VLAN 2. Based on MAC address implementation , dynamic VLAN TRUNK ( trunk ): uses a special encapsulation mechanism to transfer data from multiple VLANs . Choose an agreement. Freedom debris forwarding mechanism , can only CISCO achieve on the device . =========================================================== =============== =========================================================== =============== ROM: Rom monitor is a lower-level os system than Mini IOS , similar to BIOS Mini IOS (2500 serial CD carrier detection (cairierdetect) indicates that an interface has been activated or a modem-generated connection CDP Cisco Discovery Protocol (Cisco Discovery Protocol) Cisco proprietary protocol, used to tell the neighbor Interface Serial1.1 multipoint frequency ( frequency ) number of cycles per unit time of the AC signal, in hertz ( cycles per second ) measurement. End the Back ( back-end ) a front-end node to provide services or software programs. See server . AARP AppleTalk Address Resolution Protocol This protocol in the AppleTalk stack maps the data link address reload reload Router ( restart ) Partial mesh Source port : None 1. The content of the announcement : a copy of the routing table (copy) 2. The time of the announcement : periodicity 3. The object of the announcement : the directly connected neighbor router B(config)#inte s 0 R1(config)#no cdp run disables CDP protocol in global configuration mode ( affects all interfaces ) r1(config-if)#no cdp enable disables CDP protocol on interface ( only affects the specified interface ) clear cdp table clears CDP neighbors table 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. Disable returns from privileged mode to user mode CBR constant bit rate ----- ATM forum created for use in ATM networks B(config)#inte s 1 1. Full mesh 2. Half mesh 3. Star and spoke The credibility value of the source. The smaller the value, the higher the level of constitutionality ADSU ATM data service unit (ATM Data Service Unit) is used by HSSI connection mechanism compatible Create a standard 5 sub-section ATM cells. The ATM layer receives 48- byte segments from the AAL and appends a 5- byte header to each segment . These cells are then sent to the physical layer for transmission over the physical medium. See AAL . Router eigrp 100 Shot as a network address E channel (E channel ) loopback channel (Echo channel) ----- for a circuit switched 64Kb / s ISDN control channel. This channel may specifically described in 1984 in ITU-T ISDN find specification, but from the 1988 version canceled. See Bchannel , D channel H channel . Description description interface comment 1. Content of the announcement : Incremental update (OSPF lsa) 2. Announcement time : Trigger 3. Announced object : Router with neighbor relationship The bit, that is, a number cannot be divisible by 8 . Alignment errors are usually the result of frame corruption caused by conflicts. IGPs: Internal Gateway Routing Protocol , which maintains routes within an autonomous system FDM frequency division multiplexing (Frequency-Division Multiplexing) allows several channels to the channel dynamic entries ( dynamic entries ) for the first 2 layer and 3 to create a hardware device address dynamically layer Classical IP over ATM ( classical IP over ATM) is defined in RFC 1577 to make ATM features auto-detectmechanism ( automatic detection mechanism ) for use in Ethernet switches, hubs, and the interface card, It uses two pairs of twisted-pair cable (3 class 4 class or 5 classes ) , one pair for transmitting data to the other for receiving data. Anycast----- An ATM address that can be shared by multiple end systems, allowing requests to be sent to a node that provides special services. QoS class. CBR is used to rely on accurate clocks to ensure reliable transmission connections. Compare ABR and VBR . Line conosle 0 to consolo 0 R14(config-if)#dialer-group 9 Basic FRAME-RELAY configuration IGRP uses a 24-bit metric . R14(config-if)#ppp chap password 16300 R14(config-if)#ppp chap hostname 16300 Dynamic control of the measure, ACR varies between minimum cell rate (MCR) and peak cell rate (PCR) . See EIGRP and OSPF . The route to the network. =========================================================== =============== The program accepts the data and brings it into the 48- byte payload segment of the ATM layer . CS and SAR are the two sublayers of AAL . Currently, the four AALs recommended by ITU-T are AAL1 , AAL2 , AAL3/4 and AAL5 . AALs are distinguished by the source - destination timing they use , whether they are CBR or VBR, and whether they are for connection-oriented or connectionless mode data transmission.