Cisco IP SLA distributed response time monitoring
Viewing data as seen from a central location is only partially beneficial. Denika will work with your existing Cisco routers and switches, without deploying probes, to gather response time from multiple points around the network. In short, with Denika we can use your existing Cisco routers to perform the following:
UDP Echo measures the response time from the Cisco router to any IP device.
Jitter measures direct packet loss and Jitter. Jitter is inter-packet delay variance. It is very important when utilizing VoIP/Video.
HTTP measures Round Trip Time (RTT) taken to connect and access data from an HTTP server (i.e. transaction time RTT).
TCP Connect RTT
DHCP measures the RTT taken to discover a DHCP server and obtain a lease from it. The IP address is then released.
DLS+ measures the DLSw+ protocol stack and the network response time between DLSw peers.
DNS measures the response time by taking the difference between the time token to send DNS requests and receiving a reply.
http://www.plixer.com/products/denika_nbar.php
|Cisco IP SLA & NBAR| |
Overview: |
Cisco IP SLA (formally SAA)
Viewing data as seen from a central location is only partially beneficial. Denika will work with your existing Cisco routers and switches, without deploying probes, to gather response time from multiple points around the network. In short, with Denika we can use your existing Cisco routers to perform the following:
UDP Echo measures the response time from the Cisco router to any IP device. | |
Jitter measures direct packet loss and Jitter. Jitter is inter-packet delay variance. It is very important when utilizing VoIP/Video. | |
HTTP measures Round Trip Time (RTT) taken to connect and access data from an HTTP server (i.e. transaction time RTT). | |
TCP Connect RTT | |
DHCP measures the RTT taken to discover a DHCP server and obtain a lease from it. The IP address is then released. | |
DLS+ measures the DLSw+ protocol stack and the network response time between DLSw peers. | |
DNS measures the response time by taking the difference between the time token to send DNS requests and receiving a reply. |
Use Plixer Drag & Drill™ technology to zoom in on the exact time frame you want. Need to know what your ping latency was from your internet router to your company website yesterday afternoon? No problem! Stat Center has everything you need to deliver true application performance analysis.
Please review the Cisco IOS IP Service Level Agreements User Guide for information on configuring Cisco's IP SLA Technology.
Cisco NBAR
Applications Denika can monitorwith NBAR include:
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InternetRouter.somix.com: NBAR Protocol on SMTP (1.37)
Click to enlarge
In the example above, a spike in the amount of outbound mail is seen. This increased volume of SMTP traffic could potentially cause slowness in all mail clients across the corporation. With Denika's Real-time feature, a network administrator could then view second-by-second trending of the SMTP traffic currently flowing out of the network, as seen below.
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