In small and medium enterprise network interconnection, there are many connections using Frame Relay networks because the transmission mode is similar to a leased line and supports Traffic Transmission. If it is a frame relay network, then, the interfaces connecting the vswitch are all various frame relay nodes. In this way, multiple virtual connection channels a
1 Development Status of relay protection
The rapid development of power systems puts forward new requirements for relay protection. The rapid development of electronic technology, computer technology and communication technology has continuously injected new vigor into the development of relay protection technology, therefore, the
We have also introduced two DHCP relay faults before. I don't know if you still remember them. If you are not clear about it, You can briefly review it. The DHCP relay fault described here is about the problem that clients of different business types cannot obtain IP addresses of different network segments through relay.
DHCP
Introduction to Frame Relay is a high-performance WAN protocol. It runs on the first and second layers of the OSI reference model, that is, the physical layer and the data link layer. Ii. Related Terms 1. local access rate2, virtual circuit3, permanent virtual circuit (PVC) 4. switched virtual circuit (SVC) 5. data-link connection identifier (DLCI) 6. committed information rate (CIR) 7. inverse address resolution protocol (Inverse ARP) 8. local manage
Frame-Rekay ):
Frame relay is a connection-oriented service. It is an industry standard pure L2 data link layer protocol. It uses HDLC encapsulation between connected devices and can process multiple virtual circuits (VC; frame Relay is more effective than X.25. Currently, it is generally considered that frame relay should be used to replace X.25;
Virtual lin
Suggestion: Read my post, DHCP principles and IP address conflict detection.
1. Summary of DHCP server Conflict Detection
2. the working principle of the DHCP relay agent for forensics conflicts with the IP address because it is not in the same subnet, so gratuitous ARP is definitely not old)
DHCP server Conflict Detection
Engineers often ask the following question: to improve DHCP redundancy in a sub-network, two DHCP servers are set up at the sam
In wireless networking, we can simply divide it into two aspects from the user's perspective: home wireless networking and enterprise wireless networking. In enterprise networking, due to the wide network coverage and complicated structure, different Wireless AP network modes will be selected. Next we will introduce the wireless relay mode.
The wireless relay mode, as its name implies, is the function of a
The complexity of the network structure also makes it difficult for us to maintain some of its services. Sometimes, some faults may inevitably occur. Here we will mainly explain the problem that the client in the DHCP relay fault cannot obtain the IP address of the same network segment as the IP address through the relay proxy.
DHCP relay troubleshooting ◆ Networ
This section lets us learn the next Frame RelayFrame Relay in CCNA's exams and daily work are seldom useful, but we still want to know, it is after all a CCNA in the focus.Frame Relay (Frames relay)Also referred to as FRFrame Relay is an important WAN technology, its main function is to connect two or more long-distanc
Lab environment:
1. the topology is simple, but classic. The experiment is completed using the GNS simulator.
2. Four 36XX routers, one of which is configured as FR-SW. The router is directly connected to the frame relay switch.
Lab requirements:
1. configure a vro as a frame relay switch
2. The other three routers are directly connected to the frame relay switch
Frame Relay is becoming increasingly popular today, but it has been widely used in past designs.
This blog post briefly summarizes some concepts of FR from the second layer.
Before introducing frame relay, let's first understand the differences between broadcast media and non-broadcast media:
Broadcast media): Ethernet, token-ring, FDDI
Features:
The source can call all connected (L
A frame relay switch is a useful device, either in the lab or elsewhere. Like the boot register, the setting of the frame relay switch is also very profound in the router settings. You can build many different network models by learning how to configure a frame relay switch. As we are a "service provider", we must be able to independently allocate the full-induce
4.7 Frame-Relay Static Route
Purpose:
1. Master the Static Routing Technology deployed on frame relay.
2. Achieve communication between different branches through static routing.
Tutorial topology:
650) this. width = 650; "src =" http://img1.51cto.com/attachment/201308/172518838.png "title =" 4.7.png "/>
Tutorial steps:
1. Based on the topology shown in the figure, simulate the frame
This article mainly introduces the Totolink wireless Relay Setup tutorial, the Totolink series of wireless router models are more, and different models of wireless routers between the settings page will be different. This article will use Totolink n600r V2 wireless Router As an example to demonstrate the introduction of Totolink Router relay settings tutorial, other models of the Totolink router, you can re
User Access ProceduresFrame Relay Service is a kind of bearer service which provides two-way transparent transmission of user information through standard interface between user device and Frame relay network, and keeps its order unchanged. The interface between the user and the network is called the User----network interface (UNI), as shown in the figure. In the user----the user side of the network interfa
1.1.1. If a crash happens thisconfiguration does not guarantee that the relay log info will be consistent
[Environment description]
Msyql5.6.14
[Error message]
When mysql slave is started, the following Warning occurs in error. log:
[Warning] Slave SQL: If a crash happensthis configuration does not guarantee that the relay log info will beconsistent, Error_code: 0
This Warning information has no impact on t
section, the phenomenon has not changed, and Relay_log_file always on the same file.In order to find the cause of this phenomenon, we use strace to analyze. Because of the server phenomenon is very large disk write operations, so first use iotop to locate write a large number of thread ID, and then through the strace-p to analyze.The information collected through Strace is as follows:Read -,"376bin>303275t1721325322bg000k0000040005.5.31-"...,8192) = MaxLseek ( $,0, seekset) =0Write( $,"./
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