dte dce

congestion mark and BECN are controlled by bits in the FR frame header. In addition to the FECN and BECN bits, the FR frame also provides a discarded indicator DE to identify non-important data that can be discarded when network congestion occurs. The FECN mechanism is enabled when the DTE device sends data to the FR network. If the network is congested, DCE devices, such as switches, will automatically se

serial port. [4] type "debug serial interface". If line protocol does not come up, or the number of activated ports does not increase, it indicates that the router hardware is incorrect and the router port is changed; if line protocol is UP and the number of activated ports increases, the fault is not on the local router. [5] Change the router port. 3. Serial * is up and line protocol is down (DCE) faults: [1] CLOCKRATE in router port configuration i

11. V24-V25 commands At + IPR Determine the DTE rate. At + ICF Determine the DTE-DCE feature structure. At + IFC Controls DTE-DCE local traffic. At C Set the DCD signal. At D Set the DTr (Data Terminal ready) sign

. () of the following IP addresses is Class C address dA. 127.233.13.34 B .152.87.209.51C.169.196.30.54 D. 202.96.209.2146. Which of the following methods is not included in VLAN division? DA. Based on port B. Based on MAC addressC. Protocol-based D. Physical location-based47. Which of the following statements about DTE and DCE are true? BA. the DTE device provid

1. Introduction RFCOMM provides a serial (9-pin RS-232) Simulation Based on The L2CAP protocol, the latest specification is v1.2, supporting up to 60-channel communication connections between two bluetooth devices RFCOMM supports two device types, but does not differentiate themType 1: DTE, communication terminal (such as computer or printer)Type 2: DCE, Communication Node (modem) Shows the connection met

-my Mac is ABCD. ABCD. ABCD Layer-3 Address Resolution of broadcast media: Remote or local L2 MAC address and remote L3 Address binding Local fr dlci and remote IPv4 address binding Remote ISDN phone and original power IPX Address binding -Reverse ARP parses the remote layer-3 address to the local layer-2 address -Only directly connected devices can be parsed. Nbma port type: Multi-Point interface-connection to multiple L2 links resolution from L3 to L2

Tags: routing table sync load welcome OLE Logging Network Title DVR Experiment Command Router> enable access from user mode to privileged moderouter# Disable or exit exit from privileged mode to user moderouter# Show sessions to view the Telnet session on this computerrouter# disconnect to close all Telnet sessionsrouter# Show Users view a user on this computerrouter# Erase startup-config Delete configuration in NVRAMrouter# Reload Restart Routerrouter# Config Terminal enter privil

I believe that many vro users still have a better understanding of vro configurations. Here we will mainly introduce the specific steps of vro configuration and debugging. vro plays an important role in the computer network, it is a bridge of computer networks. It not only connects to different networks, but also selects data transmission paths and blocks illegal access. Router configuration is not very easy for beginners. Now we will introduce the vro configuration and simple debugging for your

There are still many things worth learning about configuring routers. Here we mainly introduce Ethernet port configuration, X.25 configuration, and so on. Routers play an important role in computer networks and serve as a bridge between computer networks. It not only connects to different networks, but also selects data transmission paths and blocks illegal access. Configuring a router is not very easy for beginners. We will introduce general router configuration and simple debugging for your re

the TTL level to the RS-232 protocol level and then return the TTL level. The typical operating level of the receiver is + 3 ~ + 12 V and-3 ~ -12 V. Because the difference between the transmission level and the receiving level is only 2 V to 3 V, the common mode suppression capability is poor. In addition, the distribution capacitor on the twisted pair wires can provide a maximum transfer distance of about 15 meters, the maximum speed is 20 kb/s. RS-232 is for point-to-point that only one pair

routerA (conf-if) # e xec-timeout 0 0 the first "0" represents the minute, and the second "0" represents the second 15: configure the serial port parameters for the two routers to connect through the serial port as a DTE, one is used as DCE. The DCE device must provide the clock frequency and bandwidth to the DTE devi

the password of Virtual Terminor: Router (config) # line console 0 Router (config) # Line vty 0 4 Router (config-line) # Password Host name settings: Router (config) # hostname View the current configuration: Router # show running-config View port status: Router # sho ip interface brief Interface IP-Address OK? Method Status Protocol Ethernet0 192.168.100.2 yes nvram up Loopback0 172.16.1.1 YES manual up Serial0 172.16.0.5 YES manual up Serial1 unassigned yes nvram administratively down C

may be different:Do you want to configure serial0/0 interface? [Yes]:Some encapsulations supported arePPP/HDLC/frame-relay/lapb/ATM-dxi/smds/x25Choose encapsulation type [PPP]: No serial cable seen.Choose mode from (DCE/DTE) [DTE]: If the serial optical cable is DCE, you will see the following prompt:Serial Interface

, still using UNI signaling structure.3. B-ICI (BISDN Inter-Carrier Interface)The B-ICI is defined as the interface between two Public ATM networks and provides a connection for the UNI interface of the two operators respectively. Its definition is based on the NNI interface, it supports transmission of multiple services across different networks, including cell-based PVC, PVC-based frame relay, circuit simulation, SMDS, and SVC.4. DXI (Data Exchange Interface)DXI is defined between the digital

up, or the number of activated ports does not increase, it indicates that the router hardware is incorrect and the router port is changed; if line protocol is UP and the number of activated ports increases, the fault is not on the local router.[5] Change the router port.3. Serial * is up, line protocol is down (DCE) Faults:[1] CLOCKRATE in router port configuration is lost.[2] The DTE device is not started

commandIndicates that the number of activated ports does not increase, proving that the router hardware is incorrect. Change the router port if line protocol is UP andThe number of activated ports increases, proving that the fault is not on the local router.[5] Change the router port.3. Serial * is up, line protocol is down (DCE)Faults:[1] CLOCKRATE in router port configuration is lost.[2] The DTE device i

virtual circuit code on the nodes along the line. The virtual Circuit designator in the group is represented by a 12-bit binary number (4-bit group number and 8-bit channel number). In addition to the code 0 for the diagnostic packet reservation, the virtual circuit can be built using the remaining 4,095 code, so theoretically, a DTE up to 4,095 virtual circuits. These virtual circuits multiplex the physical link between the

Frame Relay network in China is a public transport network (such as the Chinese telecom is to provide Frame Relay network services), mainly for the transfer of data service, the user router as DCE connected to the Frame Relay switch as DCE, through the Frame Relay network to establish virtual circuit, virtual circuit with data Link identification code to identifyFrame Relay Configuration steps( 1 ) as

WAN ( Wide Area Network ) WanThe data link layer, the physical layer, running in the OSI model.The protocols of the data link layer are mainly:HDLC (High-level Data Link control)PPP (Point-to-point Protocol-to-dot protocol)Frame-relay (Frame Relay)ATM (asynchronous Transfer mode Asynchronous transfer model)configuration of the serial port ( Serial Interface )R1 (config) #interface serial 0/1R1 (config-if) #ip Add 1.1.1.1 255.255.255.0R1 (config-if) #clock rate 128000//

Writing macros over the past few days is very interesting. If you want to write a document annotation, you can write it into maceos, which is much faster, Sub annotation () Sub Annotation ()DTE. activedocument. selection. Text = " //**************************" DTE. activedocument. selection. newline ()DTE. activedocument. selection. Text = " //