GBIC is the abbreviation of Giga Bitrate Interface Converter, is an interface device which converts gigabit electrical signals into light signal. The Gbic design can be used for hot-swappable. The gbic is an interchangeable product that conforms to international standards. Gigabit switches designed with GBIC interfaces
baselx/LH, or 1000basezx interfaces that follow IEEE 802.3z one by one. Furthermore, Cisco is providing a 1000 baselx/LH interface that fully complies with the IEEE 802.3z 1000baselx standard, but its transmission distance on a single-mode optical fiber is as high as 10 kilometers, it is 5 kilometers farther than the ordinary 1000baselx interface. In short, with the continuous development of new functions, it is easier to upgrade these modules to the latest interface technology, so that the cus
Ethernet port/slot to connect the port with the fiber optic network. GBIC can be used and exchanged on a variety of Cisco Products see Table 2), and can be port-by-port mixed with the 1000 BaseSX, 1000 BaseLX/LH, or 1000BaseZX interface following IEEE 802.3z. Furthermore, Cisco is providing a 1000 BaseLX/LH interface that fully complies with the IEEE 802.3z 1000BaseLX standard, but its transmission distance on a single-mode optical fiber is as high a
1. What is GBIC?
GBIC is short for Giga Bitrate Interface Converter. It is an Interface device that converts Gigabit electrical signals into optical signals. GBIC is designed for hot swapping. GBIC is an Interchangeable product that complies with international standards. The gigabit switches designed with
The SFP is the abbreviation for the small FORM pluggable and can be easily understood as an upgraded version of the Gbic. The SFP module is half the size of the Gbic module, and can be configured with more than one port number on the same panel. The other features of the SFP module are basic and gbic consistent. Some switch vendors call the SFP module a miniaturi
Today there are user Cisco 3850 Insert multimode Gigabit module after error log as follows:*oct 13:48:54:%platform_pm-6-module_errdisable:the inserted SFP MODULE with interface name GI1/0/18 was not suppor Ted*OCT 13:48:54:%pm-4-err_disable:gbic-invalid error detected on GI1/0/18, putting GI1/0/18 in err-disable state*oct 13:48:56:%LINK-3-UPDOWN:INTERFACEGIGABITETHERNET1/0/18, changed state-to-downCisco official website to view the document after processing as follows:3850 (config) # no errdisab
Before continuing to analyze the source code, it is necessary to familiarize yourself with the UML Model diagram of the connector. Otherwise, in the face of the intricate dependency, it is inevitable that people cannot clarify their clues.
First, familiarize yourself with the following UML Model:
The illustration I drew is incomplete, so that the UML Model of the connector can be clearly expressed to avoid
Error message
caused By:com.mysql.cj.core.exceptions.InvalidConnectionAttributeException:The server time zone value '? й??????? ' is Unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the Servertimezone configuration) to use a more specifc Time zone value if you want to utilize time zone support.
Reason for the occurrence:Due to the use of MySQL connector/j more than 6.x version, and t
The receiver/connector mode is designed to reduce the coupling between connection establishment and service execution after the connection is established. For example, in the WWW browser, the service or "actual work" performed is to parse and display the HTML page received by the client's browser. Connection establishment is secondary and may be accomplished through BSD sockets or some other equivalent IPC mechanism. Using these patterns allows progra
Http://unixboy.javaeye.com/blog/451671
Http://unixboy.javaeye.com/category/75180
RJ45 connector:
Used for Ethernet (Ethernet 10/100/1000 m UTP/STP Interface), commonly used in Category 5 unshielded twisted pair wires. RJ-45 is also used for other interfaces such as ISDN, pins are defined differently.
Listen 48 connector:
Used to connect T1, E1 serial lines, usually using shielded twisted pair wire; RJ-
already a fairly respectable number.
In the case of this level of load, you may not need to put the Web server before Tomcat. But there is a second reason to do so, and that is to create a control area (demilitarized zone). Placing a Web server on a host is equivalent to inserting a quarantine zone (neutral zone) between the company's private network and the Internet or other external public networks, which allows the application on Tomcat to secure access to other private resources, as well a
As mentioned in the introduction, Catalina has two main modules: connectors and containers. In this chapter, you will write a connector that can create better request and response objects to improve the program in Chapter 2nd. A connector compliant with Servlet 2.3 and 2.4 specifications must create javax. servlet. http. httpservletrequest and javax. servlet. http. httpservletresponse and pass them to the s
Before discussing the details of connectors and their role in the overall ActiveMQArchitecture, it ' s important to understand connector URIs. Uniform Resource Identifiers(URIs), as a concept, aren ' t new, and you ' ve probably used them over and over againWithout realizing it. URIs were first introduced for addressing resources in the worldWide Web. The specification (Http://mng.bz/8iPP) defines the URI as "a compactstring of characters for identify
loadrunner hint error: Error:socket0-software caused connection abort. Error code:10053.In today's testing process found that the socket request connection always error, code is 10053,google after the problem has been resolved. The key point is the configuration of one of the parameters of the Web server (tomcat/jboss). "Maxkeepaliverequests"Maxkeepaliverequests the maximum number of requests for HTTP requests that can be made for a single connection, with a default value of 100. If you set its
mode)
we understand the above principle, it is not difficult to understand why the above buffer often to flip, theflip method to switch buffer from write mode to read mode. Calling the flip () method resets position back to 0 and sets the limit to the value of the previous position, which is equivalent to preparing the read, and the sendbuffer in the preceding code is immediately: /output to channelClient.write (Sendbuffer); in this client.write method, the actual byte is read from buffer a
MYSQL: MySQL 5.0 Reference Manual: Connector 1.4.5 locking ing a connector/odbc dsn on UNIX
odbcconfig GUI tool (HOWTO: odbcconfig)
odbcinst
in some cases when using unixodbc , you might get this error:
data source name not found and no default driver specified
if this happens, make sure the odbcini and odbcsysini environment variables are pointing to the r
Oracle (+) connector usage, oracle connector usage
In the Oracle PL-SQL, left and right connections can also be implemented as follows
Example:
SELECT stu_name, class_nameFORM students, classesWHERE students. classid (+) = classes. id
The preceding SQL query uses the right connection.That is, the other side of the "(+)" is the connection direction.All records on the right side of the equal sign are disp
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