ccie security v5 passed

ccie security v5 passed

Available in four different frame types. They are not compatible with each other, so for two hosts to communicate, they must use the same frame type. Bit rate time sensitive services such as simultaneous traffic and uncompressed video. Playing AAL Ip route 4.0.0.0 255.0.0.0 s0 Configure IP protocol R14(config)#interface bri 0 R14(config-if)#ip address negotiated B(config)#inte s 0 Basic FRAME-RELAY configuration BUS BUS ----- in LAN emulation, responsible for parsing the broadcasting and with all the unknown ( unregistered ) packet into the address of the ATM hardware or software required for point to point virtual circuit. See LANE , LEG , LEGS, and LES . BX.25 AT&T 's use of X.25 . See X.25 . 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 . Protocol : ICMP (Internet Control Message protocol) DNS Domain Name System (Domain Name System) is used to resolve host names to IP addresses. OSPF only supports IP network environments and only supports equivalent load balancing. Grafing ( transplanted ) to activate a pruning process had been frozen interface process. It is sent to the router convergence ( convergence ) Internet in all routers update their routing tables and create a consistent And the protocol to close the session and the sequential request. See ATP . FECN forward explicit explicit notification (Forward Explicit Congestion Notification) by Frame Relay Network data compression ( data compression ) See compression . DXI data exchange interface (Data Exchange Interface) in RFC 1482 is described, DXI define a 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 data circuit-terminating equipment ( data circuit terminating equipment ) the DCE is used between DTE equipment =========================================================== =============== Data link layer : VLAN characteristics =========================================================== ============== ( 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 Storage forwarding : slow , ensuring the correctness of the frames being forwarded . bridging loop ( bridging loops ) bridged network, to a network if there is more than one link and STP Configuration register starts the configuration key ,ccie security v5 passed, and modifying it will affect the startup sequence of the Router . Clear line XXX clear line Piece address. The switch then filters the network with a known hardware address (MAC) The CLI command line interface allows users to configure Cisco routers and switches with maximum flexibility . delay ( delayed ) once buried Office from the beginning to the sender when they receive a response elapsed between the first 1. Switch and bridge 2. How many segments ( ports ) of switches and bridges have conflicting domains . Immediate execution , immediate effect Blocking -> Listening -> Learning -> Forwarding EIGRP uses a wildcard mask configuration example : congestion collapse ( congestion collapse ) the ATM results in the packet network due to retransmission, wherein little or no A & B bit signaling (A and B signaling bits ) for T-1 transmission device, sometimes referred to as " the first 24 channel signals 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 Source : 10.3.3.1 Configuring VTP =========================================================== =============== Clock rate ? Configure the clock frequency of the DCE interface ( system specified frequency ) 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 . Security : Communication with different VLANs data direct VCC ( data direct VCC) ATM two LEG to establish a two-way point between the Source port : None 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 Corelayer The top layer of the Cisco three-tier hierarchical model that helps design, build, and maintain a Storage forwarding : slow , ensuring the correctness of the frames being forwarded . DCE data communication device ( by JIA defined ) or a data circuit-terminating equipment ( according to ITU-T defined ) constituted by DLSw Data Link Switching (Data Link Switching) IBM in 1992 Exploitation AC data link =========================================================== =============== helper address ( help address ) specified unicast address, which directs Cisco router into direct =========================================================== =============== FRAME-RELAY topology (pvc) Config-register 0x2142 modify the startup configuration key Each non-root bridge elects a root port 1) Bandwidth Cost Lowest 2) Recevied BridgeID Lowest IGRP supports equal-cost equalization load , and also supports non-equivalent equalization load . Routers in the same autonomous system are able to learn to advertise related routes to each other . B(config)#inte s 0 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 Handshake ( handshake ) to ensure synchronous transmission of a series of operations exchanged between two or more devices on a network. 10.1.1.0/255.255.255.0 AppleTalk----Apple Communications Corporation is a communication protocol suite designed for use in the Macintosh environment. There are currently two versions. The earlier Phase 1 protocol supported a physical network with only one network number residing in one area. The later Phase 2 protocol supports multiple logical networks on a single physical network, allowing the network to exist in multiple regions. See zone .