voip packet switching

Group First, let's look at the concept of the next grouping. The so-called grouping is to divide a packet into smaller packets. For example, for a 10GB packet, it is not always a one-time delivery of the past bar, but it is divided into a number of small packets sent past. Structure diagram for each block of data:File headers are typically descriptive data, such as source and destination addresses, data typ

Grouping starts from a single host (source), transmits through a series of routers, and ends its journey in another host (destination). When grouping from a node (host or router) along this path to a successor node (host or router), the packet undergoes several different types of latency at each node along the way. The most important of these delays are node processing delay (nodal processing delay), queue delay (queuing delay), transmission delay (tr

Packet Switching:-In a packet switched network data are transmitted in blocks (packets), typically less than 1KB in length.-Each packet contains a chunk of data and sufficient information for the packet to navigate to its destination and the OR Iginal data reconstituted.-A

such as the Cisco 2960x-24ps-l (24,000 Gigabit Port 4,000 gigabit), forwarding bandwidth 108Gbps, switching bandwidth 216Gbps, packet forwarding rate 71.4Mpps, according to the non-clogging line speed forwarding to calculate, exchange capacity of 2*28*1gbps=56gbps, The nominal 216Gbps is much higher than this, why? Is it due to the different design of the switch matrix? How did he figure out the 216Gbps? Ag

The backboard bandwidth is the maximum amount of data that can be transferred between the vswitch interface processor or interface card and the data bus. The higher the bandwidth of the backboard of A vswitch, the stronger the ability to process data, but the design cost will also rise. However, how can we check whether the bandwidth of A vswitch is sufficient? Obviously, the estimation method is useless. I think we should consider the following two aspects: 1) The sum of the total port capacity

The internet has the ability to provide transmission service for distributed applications on the end system, which is related to the ability of packet switching network to transmit packets between many end systems, which is associated with network performance.This lesson mainly studied 1,. Time delay 2, packet loss rate 3, bandwidth and swallow volume. 4 Hops and