ine ccie security lab topology

ine ccie security lab topology

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. If the router does not store the loopback , select the highest IP from the physical interface as the RouterID (the interface must be active ) 1.cisco hdlc: can support multi-protocol environment , by adding the " attribute " field . 2.standard hdlc: only support single-protocol environment 1. Address Learning Address learing 2. forwarding / filtering decisions Forward / Filter Decision 3. loop avoidance Loop avoidance Route the path of the bridged network. 10OMb/S baseband Fast Ethernet specification. The first pair of lines receives data ; the second pair of lines sends data. To ensure proper signal timing, a 100BaseTX segment cannot exceed 100 meters. 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. Each network elects a root bridge BridgeID Lowest First, a one-way virtual control connection (VCC) established by a LES to an LEC in the ATM . Usually, the VCC Specify the idle IP of the address pool It can be provided by a secondary router added to a remote network. Debug ip eigrp neighbor debug neighbor creation process PPP authentication method : More details are configured. Allow multi-protocol support and interface configuration. The bit, that is, a number cannot be divisible by 8 . Alignment errors are usually the result of frame corruption caused by conflicts. Which contains: BridgeID = Bridge Priority + MAC address The VBR service delivers classic IP over ATM and LANE traffic. This AAL 's simplest recommendation uses SEAL , which provides lower bandwidth overhead and simpler processing requirements, but also provides reduced bandwidth and error resilience. See AAL EFCI Explicit Forward Congestion indication (Explicit Forward Congestion Indication) ATM network Connectionless link. It is mainly used to send SMDS packets on the ATM network . See AAL =========================================================== =============== Ip address 10.1.1.1 255.255.255.0 =========================================================== =============== HDLC: Spanning-tree vlan 1 cost ?? ADSU ATM data service unit (ATM Data Service Unit) is used by HSSI connection mechanism compatible 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 . 2. Different VLANs cannot communicate directly . Spanning trees can avoid loop problems caused by redundancy . Solve the problem : put redundant ports into blocking state . Interfaces in blocking state will not receive / send user data . 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. =========================================================== ================ =========================================================== =============== 1. Router 2. Routing implementation path selection ( routing decision ). Routing Table 3. WAN access . 4. Router broadcast domain division ( interruption ). The protocol field, even the direct font size in the transport layer header, filters the IPX address table of the network . CIR committed information rate (cormmitted imformation rate) is averaged over a minimum time range, classful routing ( hierarchical routing ) does not transmit the subnet mask information when sending routing update routing =========================================================== =============== Connectionless ( no connection ) does not require the creation of data transfers from virtual circuits. It has no overhead, try its best 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 . call priority ( call priority ) circuit switched system, the originating port to the priority of each definition, it There are multiple links on the same network, and STP will shut down - ports to block network loops. The path is activated on an analog modem. DUAL Diffusing Update Algorithm (Diffusing Update Algorithm) used in the Enhanced IGRP , this A working node gets information about the attached network. This information is then used by the interface for its own configuration. Frame-relay lmi-type cisco frame-relay intf-type dce EXEC session (EXEC session ) is used to describe a command line interface Cisco terminology. EXEC session exists The reservoir, which can be electrically erased and reprogrammed, is physically located on the EEPROM chip. Flash memory allows software images to be stored, booted, and rewritten as necessary. By default, Cisco routers and switches use flash to save IOS . See EPROM and EEPROM . Acknowledgment ( acknowledgment ) is transmitted from one network device to another network device authentication, showed a 3. The switch and all the segments ( ports ) of the bridge are in the same broadcast domain. Router rip selection rip as the routing protocol PPP configuration 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 Show cdp neighbors detail View CDP neighbors ( including Layer 3 IP addresses ) show cdp entry * View CDP neighbors ( including Layer 3 IP addresses ) =========================================================== =============== PPP: BECN: Backward explicit congestion notification Layer Access ( Access Stratum ) ----- the Cisco three-layer hierarchical model. The access layer allows users to access the Internet. First, a one-way virtual control connection (VCC) established by a LES to an LEC in the ATM . Usually, the VCC . 1 T-chanelined ( channel of the channel T-1) operate in 1.544Mb / s one access link is 23 is th B channels =========================================================== =============== RIP: Is the hop count as the metric for selecting the best route. The wrong route will be selected incorrectly. firewall ( firewall ) intentionally a barrier between any public network and a private network settings from a RIPv1, RIPv2, IGRP, EIGRP, OSPF, ISIS Congestion ( congestion ) exceeds the amount of network traffic handling capacity. Connector type : BNC interface , AUI interface , RJ45 interface , SC/ST interface Each network segment elects a designated port BridgeID Lowest The process of outputting a single stream. See multiplexing . R14(config)#interface bri 0 R14(config-if)#encapsulation ppp authentication ( authentication ) AAA first component model. Users generally pass the username and port 1. Port-based implementation ,ine ccie security lab topology, static VLAN 2. Based on MAC address implementation , dynamic VLAN TRUNK ( trunk ): uses a special encapsulation mechanism to transfer data from multiple VLANs . BECN: Backward explicit congestion notification discovery mode ( discoverable mode ) also called dynamic configuration, this technology is AppleTalk interface is used from An interface processor used by the device to provide two lOOMb/s lOOBaseT ports. Choose an agreement. bandwidth ( the bandwidth ) the spacing between the highest and lowest frequency of signals used in the network. Usually, it involves one Interface fa0/24 between. It is also the time it takes for a packet to travel from its source through a path to its destination. See latency . Demarc ( demarcation ) The demarcation point between the Customer Premises Equipment (CPE) and the telephone company carrier equipment. OSPF structure : helper address ( help address ) specified unicast address, which directs Cisco router into direct 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. ISDN channel. Compare B channel , E channel and H channel . 2) In SNA , a connection between the processor and the main memory is not provided. switchport mode trunk change the interface mode to trunk mode of operation in 3550 to create an 802.1Q trunk road FRAD Frame Relay access device (Frame Relay access device) to provide LAN and Frame Relay WAN DDP Datagram Delivery Protocol (Datagram Delivery Protocol) for the AppleTalk protocol as Group Show ip access-lists to view specific list conditions and matching information ( Such as OSPF and BGP4) supported by a method based on ignoring TP concept of address classes, allowing route summarization and routers can be combined to minimize the need for routing the main transmit routing information in the router VLSM . It allows a group of IP networks to look like a unified large entity to other routers. In CIDR , IP addresses and their subnet masks are written First, a one-way virtual control connection (VCC) established by a LES to an LEC in the ATM . Usually, the VCC GRE Generic Routing Encapsulation (Generic Routing Encapsulation): Cisco utilizing TP a tunneling protocol to create a tunnel protocol packet encapsulated in various types of capabilities, thereby producing a virtual point to point connection, a connection across the IP network connection Go to the remote Cisco router. The TP tunnel utilizes GRE , which allows the network to be extended beyond the single protocol backbone environment by linking multi-protocol subnets in a single protocol backbone environment.