Cisco IP SLA distributed response time monitoring

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.


|Cisco IP SLA & NBAR|


Overview:
Support for Cisco IP SLA allows for distributed response time monitoring without the need for expensive probes. Also, Denika supports SNMPv2 and because of this, you can auto discover Cisco's NBAR MIB and get information on over 70 different applications.

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.

Denika IP SLA Monitoring

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.

Denika IP SLA Graph

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:

HTTP
CITRIX
SNMP
POP3
SMTP
RTP
FTP
TFTP
Secure FTP
Secure HTTP
Secure POP3
Secure SMTP
Kazaa
Custom Applications
Etc.

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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