The threat posed by any strict priority-scheduling algorithm is that it could starve lower-priority traffic. To prevent this, the LLQ mechanism has a built-in policer. This policer (like the queuing algorithm itself) engages only when the interface is experiencing congestion. Therefore, it is important to provision the priority classes properly. If the total amount of priority class bandwidth provisioned is lower than the total amount of voice traffic offered to the PQ (including the Layer 2 overhead), the excess voice traffic might be dropped (by the LLQ policer). As with any other policer, LLQ's policer, when engaged, drops traffic indiscriminately and affects the quality of all voice calls active on the interface (not just the last one to go through). In earlier network tracking Releases, the PQ of LLQ policed strictly to the bandwidth assigned, regardless of traffic present or absent in other classes. In later releases, this operation changed to police strictly only if the interface was congestedthat is if other classes were underutilized, PQ traffic would be allowed to exceed its bandwidth without dropping packets
Another benefit provided by the implicit policer within the LLQ mechanism is the capability to use TDM for the single strict-priority queue. TDM abstracts the fact that only a single strict-priority queue exists and allows for the configuration and servicing of "multiple" low-latency queues.
Monday, November 30, 2009
Friday, November 27, 2009
CD MP3 Burner 2.15
CD MP3 Burner 2.15 CD MP3 Burner is such a CD-burning software that can convert MP3 files to conventional Audio CD with two easy steps. It supports MP3 to CD on-the-fly with high speed and quality. It also supports ripping your favorite CD tracks from several different CD disc and burning them to one disc. it supports editing ID3 tags of MP3/OGG files.
Thursday, November 26, 2009
Software inventory tools
The oldest queuing algorithm is PQ, which consists of only four queues (high, medium, normal/default, and low). The scheduler begins by emptying the high queue and begins to service lower queues only when upper queues are completely empty. This basic algorithm proved very successful in handling real-time traffic, but it posed starvation possibilities to lower-priority traffic flows.
A major difference between WFQ and CBWFQ is that, with WFQ, software inventory tools is calculated instantaneously; but with CBWFQ, a minimum bandwidth explicitly is defined and enforced. Additionally, CBWFQ uses Modular QoS CLI (MQC)based class maps for classification, which provide the richest and most granular recognition criteria within the IOS QoS toolset. When class maps are combined with CBWFQ bandwidth statements, minimum-bandwidth guarantees can be provisioned for almost any application
A major difference between WFQ and CBWFQ is that, with WFQ, software inventory tools is calculated instantaneously; but with CBWFQ, a minimum bandwidth explicitly is defined and enforced. Additionally, CBWFQ uses Modular QoS CLI (MQC)based class maps for classification, which provide the richest and most granular recognition criteria within the IOS QoS toolset. When class maps are combined with CBWFQ bandwidth statements, minimum-bandwidth guarantees can be provisioned for almost any application
Wednesday, November 4, 2009
CDBurnerXP Pro 3.0.116
CDBurnerXP Pro 3.0.116 is an easy to use CD burning software, that is able to write CD/DVD-R and CD/DVD-RW discs.
The program can also write disks directly from an ISO image file, and save image as an ISO image file (*.iso).
In addition to CD burning, you can also rip audio CDs, normalize WAV files, encode MP3 files, erase disks. CDBurnerXP Pro does not require ASPI when used under for NT/2000/XP.
The program can also write disks directly from an ISO image file, and save image as an ISO image file (*.iso).
In addition to CD burning, you can also rip audio CDs, normalize WAV files, encode MP3 files, erase disks. CDBurnerXP Pro does not require ASPI when used under for NT/2000/XP.
Tuesday, November 3, 2009
Network discovery
There may be significant turmoil and uncertainty among employees of an acquired organization. IT executives should communicate information to their employees in a timely, easy-to-understand manner to stave off productivity loss and malintent due to speculation and fear. It is equally important for company leaders to define a network discovery for critical IT infrastructure and plan for additional load on the workforce during the transition, and to communicate this information to employees effectively.
Inventory all existing and incoming IT assets. First, ensure that the company has a strong visibility into and understanding of its own IT assets. This provides the basis for a successful IT integration. When acquiring another company, take a thorough inventory of the acquired company's IT assets. Acquiring companies often do not have a full understanding of the IT assets they are acquiring, which opens up the company to increased risk.
Inventory all existing and incoming IT assets. First, ensure that the company has a strong visibility into and understanding of its own IT assets. This provides the basis for a successful IT integration. When acquiring another company, take a thorough inventory of the acquired company's IT assets. Acquiring companies often do not have a full understanding of the IT assets they are acquiring, which opens up the company to increased risk.
Monday, November 2, 2009
AutoPlay Menu Builder 5.6
AutoPlay Menu Builder 5.6 is one of the best tools for creating an automatic playing menu to launch your CDROM. No programming experience is necessary! Just click and drag your mouse a few times, and like magic you can build a menu which will pop up when your CDROM is inserted into the drive. From the menu you can run applications, open documents, play movies, and do much, much more. This is the simple, elegant solution to your CDROM creation needs.
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