Archive for 'CCVP' Category
Bridging the gap between 3550 and 3560 QoS: Part I
The 3560 QoS processing model is tightly coupled with it`s hardware architecture borrowed from the 3750 series switches. The most notable feature is the internal switch ring, which is used for the switch stacking purpose. Packets entering a 3560/3750 ...
Quick Notes on the 3560 Egress Queuing
The goal of this article is to discuss how would the following configuration work in the 3560 series switches:
interface FastEthernet0/13
switchport mode access
load-interval 30
speed 10
srr-queue bandwidth shape 50 0...
Shaping vs. Policing At A Glance
This may seem to be a basic topic, but it looks like many people are still confused by the difference between those two concepts. Let us clear this confusion at once!
Look at the diagram above. Both router links are clocked at 128Kbps, and the ...
Using NBAR for Application Filtering
NBAR can be used to apply application based filters such as blocking youtube.com traffic. To accomplish this we can categorize traffic based on the HTTP hostname. Next we will create a policy-map that matches the youtube.com class and drops the traf...
QoS and where and what can be marked (MQC)
QoS means, to give certain types of traffic in a network priority above other types of traffic or to garanty certain functionallity. And this could be done on many different kind of architectures.
But dependend on the type of traffic QoS can on...
What’s ip precedence?
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|Version| IHL |Type of Service| Total Length [...]
RTP/Voice traffic range
The range for RTP/VOIP traffic packet could take is:
permit udp any any range 16384 32767
Also tcp port 1720 is used for voice control connetions similiar like port 21 with ftp
Der Beitrag wurde
am Mittwoch, ...
QoS campus design / telephony / avaya / diffserv
I have implemented a QoS design for a customer with about 5000 nodes per campus. The design is relatively straigt through. Once you have decided with classes you want to implement, you have to configure the different devices. There has been an access,...
QoS and what to manage with what
There are many different kind of QoS techniques around at Cisco. All of them are like a tollbox for managing traffic. Each technique has it’s preferred operational area. So here are some scenarios in which you would use a certain technique.
...multiple LLQ Low Latency Queues / bandwith (remaining) percent
LLQ means priority a queue, to forward voice and video traffic before all other traffic.
If you have multiple LLQ queues, the difference between the single and multiple queue configuration is, that if you have at least two priority queues, both ...