difference between ccie security v4 and v5
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2. Topology Table => Network Map
BIP bit interleaved parity (Bit Interleaved Parity) ATM are used to monitor the link on the error
all-routes explorer packet ( full routing packet detection ) a can pass over the entire SRB sounding packet network,
Configuration with multipoint subinterface
OSPF area :
Show frame-relay lmi show frame-relay pvc show frame-relay map
Numbered recommended standards in ISDN , SMDS, and BISDN . 2) A flag for the field in the ATM address containing the E.164 format number .
Blocking -> Listening -> Learning -> Forwarding
Frame Relay switching ( Frame Relay switching ) service provider router frame relay packets provided
In user mode and privileged mode.
CTD Cell Transfer Delay (Cell Transfer Delay) for ATM a given connection is used in the source
Designated router (DR , designated router ) creates an OSPF for the LSA for a multiaccess network
A(config-keychain)#key 1Configure key 1 A(config-keychain-key)#key-string cisco define password A(config-keychain-key)#exit
The address is all ones . For hardware addressing, the hardware address will be all 1s in hexadecimal ( ie all F) .
B(config)#access-list 1 permit any
Media type : twisted pair , coaxial cable , fiber
The process number does not affect the OSPF notification learning
( 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
Autonomous system :
The root port does not participate in the competition of the specified port. 2) Usually all the interfaces of the root bridge are designated ports.
Passive-interface configures the corresponding interface to not send any notifications
Other routers maintain a record of existing available routes AEP AppleTalk Response Protocol (AppleTalk Echo
CHAP Q & A Handshake Authentication Protocol (Challenge Handshake Authentication Protocol) -----
RIP supplement :
DLSw+ Cisco 's DLSw implementation supports the RFC standard, and Cisco added the goal to increase
VLAN features :
Target port : 23
vlan 10 name cisco create a named CISCO 's 10 Hao VLAN vlan 20 create a system of self-named 20 Hao VLAN
Enable enter privileged mode
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 .
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Specifies in which order the call will be reconnected. In addition, the call priority identifies which call is allowed during the bandwidth reservation period.
D channel (D channel ) 1) data channel ----- a full duplex, 16Kb / S (BRA) or 64Kb / s (PRI)
end-to-end VLANs ( end the VLAN) ----- across the switch fabric (switch-fabric) from end to end
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Ip address 10.1.1.1 255.255.255.0
In ABR service allows a congestion feedback mode. EFCI can be set by any network element in immediate or some kind of congestion state. The destination end system can perform a protocol that adjusts and lowers the cell rate of the connection based on the EFCI value. See ABBR .
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Ip route (Destnation Network IP) (NetMask) [NextHopIP | LocalInterface] Destnation Network IP: Target Network IP
CAC Connection Allow Control (Connection Admission Control) Each ATM switch is connected in the connection
Flexibility : VLANs can span multiple switches
B(config-if)#ip nat outside configure S1 interface for the outside network to specify which hosts can NAT
Used to connect to remote sites .
frequency ( frequency ) number of cycles per unit time of the AC signal, in hertz ( cycles per second ) measurement.
B(config)#inte s 0
!
Transport layer : reliable and unreliable transport services , retransmission mechanism . Segment
active monitor ( activity monitor ) for Token Ring management mechanism. The highest MAC address on the ring
Call setuptime ( call setup time ) affects the length of time required for switched calls between DTE devices
EFCI Explicit Forward Congestion indication (Explicit Forward Congestion Indication) ATM network
VLAN implementation method:
Router), also known as boot mode , can be used for IOS upgrades.
Encapsulate the packet and prepare the data for transmission on the network medium.
Hide : access-list 1 deny any
Ip address 10.1.1.1 255.255.255.0
frequency ( frequency ) number of cycles per unit time of the AC signal, in hertz ( cycles per second ) measurement.
Web specification. When no traffic is present. 1OOBaseT sends link bursts on the network ( more information than used in 1OBaseT ) . See 10BaseT , Fast Ethernet, and IEEE 802.3 .
B(config)#access-list 1 permit any
Spanning-tree vlan 1 cost ??
Control distribute VCC ( Control Distribution VCC) Phase I LAN simulation defines three control connections
Frame-relay lmi-type cisco frame-relay intf-type dce
enable secret provided in the ciphertext enable password ( in preference to the use plaintext ) service password-encryption of all encryption system cleartext password ( weak )
A bridge with low path overhead.
End exit port configuration device
1. Add this interface to the rip process. 2. Advertise the network of this interface to other routers.
R14(config)#dialer-list 9 protocol ip list 1
bridge group ( bridging group ) in a bridge configuration of the router, bridge group number determined by a unique
1. Connected to a service . 2. Connection based on virtual link PVC: permanent virtual link
Relay Cell ( Cell Relay ) using small fixed size packets ( called cells ) technique. Their solid
" The main explanation is F , G , H vocabulary beginning.
(Amplitude magnitude ) the maximum analog or digital waveform.
ADSU ATM data service unit (ATM Data Service Unit) is used by HSSI connection mechanism compatible
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 .
Call setuptime ( call setup time ) affects the length of time required for switched calls between DTE devices
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 .
R14(config)#interface bri 0 R14(config-if)#encapsulation ppp
Cellrelay .
Set when to dial R14 (config) #access-list 1 permit any
Link state type routing protocol:
Encryption ( encryption ) converting the information into a form clutter to effectively disguise, so as to prevent an authorized end
B(config)#inte s 0
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,difference between ccie security v4 and v5, Cisco routers and switches use flash to save IOS . See EPROM and EEPROM .
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 .
VTP is the use multicasting to advertise, VTP will intervals . 5 minutes announcement once , even if there is no change .VTP switch synchronized the last configuration .
Virtual circuits in the network.
Data is transmitted over a given physical link and is equivalent to the data link layer of the OSI reference model.
And the protocol to close the session and the sequential request. See ATP .
byte-oriented protocol ( byte oriented protocol ) to mark the frame boundaries, the use of a user character
demultiplexing ( demultiplexer ) one input stream composed of a plurality of the multiplexed signal is converted back to a single
Neighbor indicates a specific neighbor
1. Address Learning Address learing 2. forwarding / filtering decisions Forward / Filter Decision 3. loop avoidance Loop avoidance
Enable password Set the plaintext enable password
1. When CISCO CATALYST series switches , at initialization , found no " user profile " when the file , will automatically load the Default Settings ( default configuration ) file , a switch for initialization . To ensure that the switch is working properly .2.