sfp dac

Ws-x4148-fe-bd-lc:cisco Catalyst 4500 Fast Ethernet switching module, 48 port 100base-bx-d SMF (LC) Ws-x4124-fx-mt:cisco Catalyst 4000 Fast Ethernet switching module, 24 port 100base-fx (MT-RJ) Ws-x4148-fx-mt:cisco Catalyst 4500 Fast Ethernet switching module, 48-Port 100BASE-FX multimode fiber (MMF) Ws-x4124-rj45:cisco Catalyst 4500 10/100 module, 24 port (RJ-45) Ws-x4148-rj:cisco Catalyst 4500 10/100 module, 48 port (RJ-45) Ws-x4148-rj21:cisco Catalyst 4500 10/100 module, 48 Port Telecom

1. Access Control Mechanism (ACM) ACM: access control mechanisms ACM provides system administrators with a way to control which users and processes can access different files, devices, and interfaces. ACM is a major consideration for ensuring the security of computer systems or networks. ACM provides the following six methods: 1) independent access control: Discretionary Access Control (DAC) 2) Access Control List: access control lists (ACLs) 3) Manda

Release date: 2012-04-10Updated on: 2012-04-28 Affected Systems:HP E5412 zl SwitchHP E5406 zl SwitchHP Management Module 5400 series zl switch J8726ADescription:--------------------------------------------------------------------------------Bugtraq id: 52990Cve id: CVE-2012-0133 HP ProCurve Switch is an enterprise-level network Switch. HP ProCurve 5400 zl Switches has a security vulnerability in implementation. If a vswitch is connected to a virus-infected flash card, attackers can exploit this

The 3560X module has four options for configuration.1.4 Gigabit SFP C3KX-NM-1G2. Or 20 thousand mb sfp + C3KX-NM-10G3. Or 10 thousand mb sfp +, 2 Gigabit SFP C3KX-NM-10G4. or 2 10Gb-T, RJ45 interface C3KX-NM-10GT WS-C3560X-48T-SCatalyst 3560X48 Port Data IP Base 1S356XVK9TN-15001SECAT 3560X ios universal no macsec w

GE switches are still commonly used. So I have studied the full performance solution of the mainstream L2 switches with all-optical ports. I would like to share this with you and hope it will be useful to you. Recently, the F-engine S2200F series all-optical ports, 10-Gigabit L2 switches and F-engine S2200G series all-optical ports, which are independently developed by beacon network, were officially introduced to the market, this is an important step in improving the Ethernet switch Product Lin

low address, where the sp pointer executes the last stack address used Here we introduce the second pointer bp, which is used to represent local variables in the range of this function (this ghost bp is used to indicate the starting address of these local variables. Note that, the starting address does not include sfp and ret) Bp and sp are based on the following operating mechanisms: 1. The called function first defines the original bp push as

errors: 0 dropped: 0 overruns: 0 carrier: 0Collisions: 0 FIG: 1000RX bytes: 0 (0.0 B) TX bytes: 0 (0.0 B)Em3 Link encap: Ethernet HWaddr EC: F4: BB: D0: 0B: 64Up broadcast multicast mtu: 1500 Metric: 1RX packets: 0 errors: 0 dropped: 0 overruns: 0 frame: 0TX packets: 0 errors: 0 dropped: 0 overruns: 0 carrier: 0Collisions: 0 FIG: 1000RX bytes: 0 (0.0 B) TX bytes: 0 (0.0 B)Memory: dbe80000-dbf0000003. view the driver required by the NIC Run the ethtool command to view the NIC driver information

media uplink Port has a two-port Ethernet port and a small pluggable (SFP) Gigabit Ethernet port, one of which is activated when used, but cannot be used at the same time. Network control and bandwidth optimization are achieved through advanced QoS, precise rate limiting, ACL, and multicast services. Network security through multiple authentication methods, data encryption technology, and network access control based on user, port and MAC address sim

1. Introduction to OSS The OSS hierarchy is very simple. applications access the OSS driver through APIS (defined as), and the OSS driver controls the sound card. As shown in: OSS Structure Sound cards mainly have two basic devices: mixer and CODEC (ADC/DAC ). Mixer is used to control the input volume. The corresponding device file is/dev/mixer. codec is used to realize recording (analog signal is converted to digital signal) and play the sound (Di

to authorize another user to access the file he created, he only needs to modify the access limit of the file. That is to say, in Linux, file permissions are controlled by the owner. Therefore, this permission Control method is called autonomous, and the formal English name is Discretionary Access Control, or DAC. Ideally, the DAC mechanism is fine. However, serious security problems may occur in reality.

Login. aspxCreate a text box for username and password on the page, and click "Log on ".-----------------------Login. aspx. CSProtected void submit_click (Object sender, eventargs E){Dataaccess. class1 DAC = new dataaccess. class1 ();If (DAC. checklogin (this. uname. text, this. pwd. Text ))// Response. Write ("success! ");// Response. Redirect ("default. aspx? ");Server. Transfer ("default. aspx ");ElseRes

about SELinux (security-enhanced Linux) : (Reference http://blog.csdn.net/flaght/article/details/2973910)Normal Linux uses the discretionary access control policy (discretionary Acces control, DAC) policy to restrict resource access. This strategy is relatively simple and weak, as long as the required permissions (file owners and file attributes, etc.) can be used resources, which is prone to security risks, and it is difficult to support many securit

When the number of ports that a single switch can provide is insufficient to meet the requirements of the network computer, more than two switches must provide the corresponding number of ports, which also involves the connection between switches. Basically, there are two ways to connect vswitches: Stack and cascade. 1. GBIC and SFP 1) GBIC Cisco GBICGigaStack Gigabit Interface Converter) is a common and low-cost Gigabit Ethernet stack module that pro

Some cisco switch modules organize the TwinGig Converter Module of the Catalyst 3750-E Series Switch: www.2cto.com TwinGig SFP converter can convert the 10 thousand M Ethernet X2 interface into two Gigabit Ethernet Small pluggable (SFP) ports. XENPAK uplink modules of Catalyst 3750G series switches: common optical modules of Ethernet switches include SFP, GBIC, X

}}. {Employee, 117716, "fedoriw Anna", 1, female, 99143, {221,031 }}. {Employee, 115018, "Mattsson Hakan", 3, male, 99251, {203,348 }}. Dept {Dept, 'B/SF', "Open telecom platform "}. {Dept, 'B/sfp', "OTP-Product Development "}. {Dept, 'B/sfr', "Computer Science Laboratory "}. Projects % Projects {Project, Erlang, 1 }. {Project, OTP, 2 }. {Project, beam, 3 }. {Project, mnesia, 5 }. {Project, Wolf, 6 }. {Project, documentation, 7 }. {Project, WWW, 8 }.

: 408gbit/sec:24 Port x8.5 gbit/sec ( line rate ) x2 ( full duplex ). maximum fabric delay : 8 gbit/sec rate with no contention, pass-through routing for NanoMaximum frame : 2112 bytes Net load. frame buffering : You can dynamically allocate a frame of up to 484 frames per port . service levels : Class2,Class 3,andclass F ( inter-switch frames ). Port type : Fl_port,f_port,m_port ( Mirror Port ) and E_port; self-discovery based on switch type (U_port); Optional port type control in Brocade Acce

switch is a gigabit switch (all interfaces are gigabit)TT: Indicates that the gigabit on-connection port of the switch is base-t (i.e.: RJ45 interface)TC: Indicates that the switch gigabit on the port is dual-use, directly with the BASE-T, you can add modules on it.TS: Indicates that the 37 switch also has a gigabit expansion slot.T: Indicates that the 37 switch does not have a gigabit expansion slot.E: Indicates that the switch is an enhanced three layer; S: Indicates that it is a standard thr

Cisco mds9222i Fibre Switch most commonly used debug commands1. Check the switch portShow interface [Interface-range]View specified port run status, WWN information, configuration parameters, and packet statistics.Demonstration:mds9222i-1# Show Interface FC1/1FC1/1 is trunking-port FC1/1 operating normally, is a TE portHardware is Fibre Channel, SFP was short wave laser w/o OFC (SN)-Port, SFP hardware infor

|+------------------+ Memory high end When a function call occurs in a program, the computer does the following: First, the parameters are pressed into the stack;The contents of the Save instruction Register (IP) are returned address (RET); The third is the base address that is sent to the stack(FP), then copy the current stack pointer (SP) to the FP as the new base address, and finally the localAmount of space, the SP minus the appropriate value. Take the following procedure as an example:

problem with this security mechanism based on Linux uid/gid? Note As we mentioned earlier, when a user wants to grant another user access to a file that he or she creates, it just needs to modify the access permission bit of the file. In other words, in a Linux system, the permissions of the file are controlled in the owner's hands. Therefore, this type of authority control is called autonomous, the official English name is discretionary Access control, referred to as the DAC.In the ideal case,