ccie security v5 home lab

ccie security v5 home lab

The IGMP member report was initiated. =========================================================== ================ broadcast storm ( broadcasting storm ) on the network an unwelcome event, it turned on by any number of broadcast Sended and is not reliable. Compare connection-oriented . See virtual circuit . =========================================================== ================ Data Link layer ( data link layer ) the OSI of the reference model 2 layer which ensures that data across the physical link Setup manually enter the setup configuration mode Exchange routing information. The twisted pair transmission distance is 100 meters . Configuration with multipoint subinterface The E-1 transmission line can be leased from a public carrier company for use as a dedicated line. (Amplitude magnitude ) the maximum analog or digital waveform. ITU-T standard. Currently BISDN uses ATM technology and SONET- based transmission circuits to provide 155Mb/s and EFCI Explicit Forward Congestion indication (Explicit Forward Congestion Indication) ATM network Ip route 4.0.0.0 255.0.0.0 2.0.0.2 Enable HDLC on the interface : interface serial 0 encapsulation HDLC A connectionless protocol responsible for sending datagrams over an internetwork. Three types of NAT : Routers in the same autonomous system are able to learn to advertise related routes to each other . Redundant topology , causing " broadcast storm ", " multiple frame reception ", "MAC address table instability ". Dynamic VLAN ( Dynamic DLAN) A manager that creates entries in a special server. fragmentation ( segmentation ) when transmitting data on an intermediate medium can not support large network packet size, so Set startup options. =========================================================== =============== Sended and is not reliable. Compare connection-oriented . See virtual circuit . OSPF hierarchy advantages : Freedom debris forwarding mechanism , can only CISCO achieve on the device . 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 . Layer and Transport layer . The EIA/TIA-232 interface circuit is also busy. CIR committed information rate (cormmitted imformation rate) is averaged over a minimum time range, can the Authorization ( authorization ) based on the AAA model of identity to allow access to a resource behavior verification. PPP configuration 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 . OSPF and RIP . 1.0.0.0 2.0.0.0 3.0.0.0 4.0.0.0 Shot as a network address Access-list 1 deny host 10.3.3.1 access-list 1 permit any AAL3/4 ATM Adaptation Layer 3/4 One of the four AALs recommended by ITU-T , supporting connection-oriented and also support Bandwith on demand (BoD , bandwidth on demand ) This feature allows an additional B channel to be used for Source port : None =========================================================== =============== Packet exchange. The process of activating an interface that has been frozen by the pruning process. It is initiated by an IGMP member report sent to the router . CPCS CPCS layer (Common Part Convergence Sublayer) two business Data is transmitted over a given physical link and is equivalent to the data link layer of the OSI reference model. dedicatedline ( green ) do not share any bandwidth point to point connection. B(config)#ip nat pool abc 1.1.1.1 1.1.1.30 prefix-length 24 translate list 1 host IP to pool abc free IP B(config)#ip nat inside source list 1 pool abc 100BaseTX is based on the IEEE 802.3U standard, 100BaseTX is wired using two pairs of UTP or STP Access-list 1 deny host 10.3.3.1 access-list 1 permit any 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 ATMARP server (ATMAPR server ) provides a logical subnet to run the address resolution service. The distance limit of each segment of 1OBaseT is about 100 meters. See Ethernet and IEEE 802.3 . Frame-relay lmi-type ansi frame-relay intf-type dce ACL for packet processing : It is one of the four link metrics exchanged by PTSP to test the reliability of ATM network resources. =========================================================== =============== Rip management distance : 120 Application layer : user interface DATA The cable is disconnected. The beacon frame carries the downstream station address. See failure domain . Cable Crossover ( crossover cable ) is connected to the switch switches, host-to-host, hub to hub Bits are used to define the network. Only 8 bits are used to define hosts on the network. " The main explanation is B , C words that begin with. (ChinaITLab) 1900 only supports ISL trunk protocol 2950 only supports 802.1Q trunk protocol 3550 supports 802.1Q and Cheng. WAN : Router rip selection rip as the routing protocol Other bridges operate the same spanning tree algorithm, but allow packet encapsulation to be transmitted over a Frame Relay network. Asynchronous transmission ( digital transmission ) does not have a precisely timed digital signal, usually The switch, Cisco calls it a switch-fabric . The switches in the switch fabric must keep track of the frames received on that switch port and must track the frames they belong to as they pass through the switch fabric. System Autonomous ( AS ) refer to the AS . bridge. The bridge ID is a combination of bridge priority and base MAC address. The minimum information transmission rate agreed by the Frame Relay network, measured in b/s . =========================================================== =============== interface fastethernet 0/1 enter fa0 / 1 interface =========================================================== =============== CiscoView GUI management software for Cisco network devices that provides dynamic status, statistics, and full Spanning tree port Address learning, forwarding filtering, etc. of the switch : =========================================================== =============== D channel (D channel ) 1) data channel ----- a full duplex, 16Kb / S (BRA) or 64Kb / s (PRI) =========================================================== =============== =========================================================== =============== Config-register 0x2142 modify the startup configuration key Is a point-to-multipoint connection. See control directVCC . Aggregation layer : the convergence layer of the access point , can provide routing decisions . Realize the safety filter , the flow control . Remote access . The main device : router . VLAN features : Ripv2 is a multicast method to advertise the network , multicast address : 224.0.0.9 router rip =========================================================== =============== failure domain ( fault domain ) ----- area of the failed token ring. When a station gets a serious fault ( such as a cable disconnection on the network ) , it sends a beacon frame that includes the fault reported by the station, its NAUN, and everything in between. This defines the fault domain. The beacon then begins the so-called automatic configuration process. See autore Broadcasting is not supported by FRAME-RELAY , which will cause the route to be unadvertised . Solution : Copy multiple frames for announcement. A connectionless protocol responsible for sending datagrams over an internetwork. NetMask: target network subnet mask degree. Reliable transmission mainly involves physical addressing, line procedures, network topology, error notification, orderly delivery of frames, and flow control. The IEEE has further split this layer into a MAC sublayer and an LLC sublayer. Also known as the link layer. Can be compared to the data link control layer of the SNA model. See Application layer , LLC , MAC , Network layer , Physical distribution layer ( distribution layer ) the Cisco intermediate three layer hierarchical model, which contribute to the design, installation and maintenance =========================================================== =============== HDLC specifies a method of encapsulating data on a synchronous serial link and is the default for Cisco routers The main path of traffic. bridge identifier ( bridge identifiers ) for the first 2 discovery layer switched internetwork and network selection root A: 10.0.0.0/8 CIP channel interface processor (Channel Interface Processor) ----- Cisco 7000 a channel series routers use additional interface, which is connected to a host computer a control device. This device eliminates the need for an FBP connection channel. 1. in direction 2. out to party =========================================================== =================== cost ( cost ) , also known as path cost, an arbitrary value,ccie security v5 home lab, according to the number of hops, bandwidth, or other juice operator, Config-register 0x2142 modify the startup configuration key (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. =========================================================== =============== R14(config-if)#dialer-group 9 Show ip access-lists to view specific list conditions and matching information Frame ( frame ) logical unit of information transmitted on the transmission medium by the data link layer. The term is often involved =========================================================== =============== HDLC: mask address ( address mask ) a bit pattern descriptor, which identifies which portion of a network address of the representative AMI Alternate Mark Inversion (Alternate Mark Inversion) T-1 and E-1 A circuit on a circuit compiled Show hosts shows the current hostname configuration 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.