CHATTER AgentBased Network Monitoring in Converged Network Analyzer

“CHATTER” Agent-Based Network Monitoring in Converged Network Analyzer (CNA) 3. 1 Module 2: Basic Operation Pilot Training Materials July 2006 © 2005 Avaya Inc. All rights reserved. Avaya – Proprietary & Confidential. For Internal Use Only.

CNA 3. 1 Chatter § 2 -Basic Operation Primary Graphical Chatter Displays Topology – Shows EDGES (aka “Links”) and NODES (Routers, CNA Agents) • Edges represent DIRECTIONAL links between nodes – Coloring of EDGES (green, pink, red, etc. ) depends on the selected • TEST (RTP, Ping, Traceroute, TCPconnect), • VARIABLE (e. g. , RTP-Delay, Ping-Loss, Traceroute-Hop. RTT), and • CRITERION (Relative, Absolute, Min, Median, Max), as well as the – Absolute threshold setting for each cell and edge – Min/Median/Max Upper and Lower Bounds for the display Zone Matrix – Each cell in the matrix represents all test results (in one direction) between two zones – Coloring of cells same as for Topology edges For both displays, you can drill down on cells or edges to see individual test results © 2006 Avaya Inc. All rights reserved. 2 Avaya – Proprietary & Confidential. For Internal Use Only.

CNA 3. 1 Chatter § 2 -Basic Operation Basic Topology Display Features © 2006

CNA 3. 1 Chatter § 2 -Basic Operation Topology – Test/Variable Viewing Options “Nodes” “Links” or “Edges” © 2006 Avaya Inc. All rights reserved. 4 Avaya – Proprietary & Confidential. For Internal Use Only.

Topology – Criteria Viewing Options © 2006 Avaya Inc. All rights reserved. 5 CNA

CNA 3. 1 Chatter § 2 -Basic Operation Chatter Display Coloring Criteria – Generally based on analysis of the last 150 relevant data points: • Relative (Statistical control limits ~ 25 th and 75 th percentile scores) • Absolute (User-defined threshold for alarming) • Minimum (The lowest value data point in the range) • Median (The 50 th percentile data point value in the range) • Maximum (The highest value data point in the range) © 2006 Avaya Inc. All rights reserved. 6 Avaya – Proprietary & Confidential. For Internal Use Only.

CNA 3. 1 Chatter § 2 -Basic Operation Coloring in Chatter Displays Green Pink Red Blue Yellow Gray Below Threshold n/a Above Threshold n/a Stale Data No Data Relative* (based on 25 th and 75 th percentiles) Stable n/a Rising Rapidly Falling Rapidly Stale Data No Data Minimum Median Maximum (Upper & Lower Bounds) Below Lower Bound Between Upper and Lower Bounds Above Upper Bound n/a Stale Data No Data Criterion Absolute* (a single threshold) * Chatter can generate alarms based on these criteria © 2006 Avaya Inc. All rights reserved. 7 Avaya – Proprietary & Confidential. For Internal Use Only.

More on Display Coloring CNA 3. 1 Chatter § 2 -Basic Operation The 5 different “Criteria” – Relative, Absolute, Minimum, Median and Maximum – are just 5 different schemes for coloring the Zone Matrix and Topology displays Changing the criterion simply changes the way a given set of test results are used to color a cell or edge – The criterion has no effect on the underlying data or the configured Alarm settings – Think of it as taking a picture of a Sunset. Moving to another position changes your perspective and the picture, but it doesn’t change the Sunset! – Similarly, changing the criterion simply changes the summary view of the last 150 test results for a cell or edge © 2006 Avaya Inc. All rights reserved. 8 Avaya – Proprietary & Confidential. For Internal Use Only.

And a Last Word on Criteria CNA 3. 1 Chatter § 2 -Basic Operation Criteria are applied to the last 150 test results for a single variable (delay, loss, etc. ) collected for a given cell or edge – Relative: Shows if the most recent results are trending better or worse than the “norm. ” The new results can become the norm fairly quickly if they are consistently high or low – Absolute: Shows if the most recent test results are above or below a user-defined threshold for alarming – Minimum: Shows how the lowest value test result in the most recent 150 compares to a pair of thresholds set by the user – Median: Shows how the middle value test result in the most recent 150 compares to a pair of thresholds set by the user – Maximum: Shows how the highest value test result in the most recent 150 compares to a pair of thresholds set by the user © 2006 Avaya Inc. All rights reserved. 9 Avaya – Proprietary & Confidential. For Internal Use Only.

CNA 3. 1 Chatter § 2 -Basic Operation Topology – RTP Delay, Minimum Criterion

CNA 3. 1 Chatter § 2 -Basic Operation Topology Node – “Right Click” Menu

CNA 3. 1 Chatter § 2 -Basic Operation Topology Edge – “Right Click” Menu

Edge Scatterplot Graph - Double Click on Edge CNA 3. 1 Chatter § 2 -Basic Operation (or right-menu option) Each data point represents the results for a given metric on a single “test. ” In this case, the metric is “Hop RTT” and the test is “traceroute. ” © 2006 Avaya Inc. All rights reserved. 13 Avaya – Proprietary & Confidential. For Internal Use Only.

CNA 3. 1 Chatter § 2 -Basic Operation Edge Data Table (Data Tab on Data Plot Screen) Each row in the table represents the results for a given metric on a single “test. ” In this case, the metric is “Hop RTT” and the test is “traceroute. ” © 2006 Avaya Inc. All rights reserved. 14 Avaya – Proprietary & Confidential. For Internal Use Only.

Edge Scatterplot Table Sorted by Value © 2006 Avaya Inc. All rights reserved. 15

CNA 3. 1 Chatter § 2 -Basic Operation Another Edge Scatterplot – Ping Test,

CNA 3. 1 Chatter Another Edge Scatterplot – Ping Test, Loss Metric § 2

CNA 3. 1 Chatter § 2 -Basic Operation Additional Topology Display Capabilities © 2006

Topology Hops Control – 1 Hop © 2006 Avaya Inc. All rights reserved. 19

Topology Hops Control – 2 Hops © 2006 Avaya Inc. All rights reserved. 20

Topology Hops Control – 3 Hops © 2006 Avaya Inc. All rights reserved. 21

Topology Hops Control – 4 Hops © 2006 Avaya Inc. All rights reserved. 22

Topology Zoom Control – Max Zoom © 2006 Avaya Inc. All rights reserved. 23

Topology “Tool Tip” – Hover on Node © 2006 Avaya Inc. All rights reserved.

CNA 3. 1 Chatter § 2 -Basic Operation Topology “Tool Tip” – Hover on

Topology “Tool Tip” – Hover on Edge © 2006 Avaya Inc. All rights reserved.

Topology – Show IP Addresses © 2006 Avaya Inc. All rights reserved. 27 CNA

CNA 3. 1 Chatter § 2 -Basic Operation Additional Chatter Displays: Trends, Reports &

CNA 3. 1 Chatter § 2 -Basic Operation Zone Matrix (End-to-End) Display Fundamentals One or more Zone Matrices are produced by the design of the Zone Hierarchy – There will be one Zone Matrix display for each “Parent” Zone avaya emea madrid avaya baskingridge madridcna baskingridge emea • A Parent Zone is one with Child Zones (aka sub. Zones) • A flat zone hierarchy (all Zones are children of the Root Zone) has only one zone matrix chelmsford – In a Zone Matrix, each cell captures unidirectional test results for one pair of Zones (e. g. , FROM Zone A TO Zone B) madridsg waterloo chelmsford madridsg waterloo emea madridcna madrid baskingridge madridcna madridsg ZONE MATRIX ZONE HIERARCHY © 2006 Avaya Inc. All rights reserved. • Plus the diagonal captures WITHIN-ZONE (Intra-Zone) test results for zones with 2 or more CNA Agents in the hierarchy below them • However, intra-zone testing may be disabled for Agents within a Zone waterloo The Zone Matrix display is very simple to understand compared to topology display – It’s a natural way of showing end-to-end test results – Traceroute (per-hop) results are not supported 29 Avaya – Proprietary & Confidential. For Internal Use Only.

CNA 3. 1 Chatter § 2 -Basic Operation A Flat Zone Hierarchy CNALab TH 1 TH 2 C 14 TH 9 A Flat Zone Hierarchy has a Root Zone and n sub. Zones (or child Zones) of the Root Zone – Each of the sub. Zones will test with each other Each of the Child Zones should have CNA Agents assigned, or else it will serve no purpose Intra-Zone testing is enabled by default, but it can be disabled manually © 2006 Avaya Inc. All rights reserved. 30 Avaya – Proprietary & Confidential. For Internal Use Only.

Rules for Multi-Level Zone Hierarchies avaya baskingridge. 49 emea A Zone may have any number of child zones, aka “subzones” A Zone may have subzones or assigned CNA Agents, but not both Zones test only with other sibling zones of the same parent By default, intra-zone testing is enabled – There must be at least two CNA Agents in chelmsford . 129 madrid a “leaf zone” for intra-zone testing to occur – Intra-zone testing can be disabled manually: measurement intra-zone disable . 28 . 26 waterloo When a Zone is involved in a test, it randomly selects a CNA Agent to represent it from one of the “leaf zones” beneath it in the tree – A “leaf zone” is one with no subzones. It . 74 madridcna . 62 © 2006 Avaya Inc. All rights reserved. CNA 3. 1 Chatter § 2 -Basic Operation madridsg typically has CNA Agents assigned to it, since it has no utility otherwise. However, you can create leaf zones with no Agents and then add in the Agents later . 21 31 Avaya – Proprietary & Confidential. For Internal Use Only.

CNA 3. 1 Chatter § 2 -Basic Operation How CNA Agents Are Selected For Testing 32 emea madrid waterloo X madridcna waterloo © 2006 Avaya Inc. All rights reserved. avaya madrid First, chatter selects a Matrix Cell in (one of) the Zone Matrices for which it wants to run a test – e. g. , FROM Waterloo TO Madrid It then randomly selects one CNA Agent to represent the Waterloo subzone and another to represent the Madrid subzone – If the FROM and TO Zones are leaf zones, one of their directly assigned Agents will be selected. Otherwise, an Agent assigned to one of the leaf zones descended from the FROM or TO Zones will be selected randomly Chatter then sends appropriate test requests to both Agents – A Slave Request to the TO Agent, a Master Request to the FROM Agent – A single Test will then be run between the FROM and TO Agents, and the test result will be added to the Results Queues (e. g. , Delay, Jitter, Loss) for the selected FROM/TO Matrix Cell madridsg Avaya – Proprietary & Confidential. For Internal Use Only.

CNA 3. 1 Chatter Pop Quiz: How the Zone Hierarchy Impacts Testing § 2 -Basic Operation avaya baskingridge. 49 Which of the following zone pairs will have tests running between them: emea . 129 © 2006 Avaya Inc. All rights reserved. c. Madrid – Waterloo? d. Madridcna – madrid? e. Madridsg – Madridcna? waterloo f. Chelmsford – Chelmsford? g. Avaya – Avaya? . 74 . 62 b. Chelmsford – EMEA? . 28 . 26 madridcna a. Basking Ridge – Chelmsford? chelmsford h. Waterloo – Waterloo? madridsg ANS: a, b, c, e + f if intra-zone PEEKING!! testing. NO is not disabled . 21 33 Avaya – Proprietary & Confidential. For Internal Use Only.

CNA 3. 1 Chatter § 2 -Basic Operation The Zone Matrices for this Zone Hierarchy avaya baskingridge emea avaya madridcna waterloo madridsg emea madrid emea chelmsford madridsg madridcna waterloo madrid chelmsford emea baskingridge 3 Parent Zones in the Zone Hierarchy 3 Zone Matrices © 2006 Avaya Inc. All rights reserved. 34 Avaya – Proprietary & Confidential. For Internal Use Only.

CNA 3. 1 Chatter Relation Between the Zone Hierarchy and Zone § 2 -Basic Matrix Operation Assume a CNA Lab Zone Hierarchy with a Root Zone called “CNALab” and 4 Subzones of CNALab named TH 1, TH 2, TH 9 and C 14 Each of these Subzones contain CNA Agents that will perform tests with CNA Agents in each of the other Subzones – In addition, the CNA Agents within a Zone can perform tests with each other. We call this Intra-Zone testing. There are 12 combinations of Subzone pairs that result from the directional pairings of 4 Subzones, i. e. , – TH 1 -TH 2, TH 1 -TH 9, TH 1 -C 14, TH 2 -TH 1, TH 2 -TH 9, . . . There are 4 additional pairings that represent the intra-zone testing that can take place between Agents within a Zone, i. e. , – TH 1 -TH 1, TH 2 -TH 2, TH 9 -TH 9, C 14 -C 14 All of these pairings can be represented on a 4 x 4 matrix with 16 Cells, as shown on the next slide © 2006 Avaya Inc. All rights reserved. 35 Avaya – Proprietary & Confidential. For Internal Use Only.

CNA 3. 1 Chatter § 2 -Basic Operation Cells in the Zone Matrix Each cell in the Zone Matrix contains the most recent 150 test results for tests between a given pair of Zones – Cells represent directional traffic, e. g. , the cell marked with an “X” represents traffic from Zone TH 2 to Zone C 14, while Cell “Y” represents traffic from C 14 to TH 2 Left-to-right diagonal cells (the grey ones) represent intra-zone traffic – Intra-zone testing is enabled by default, but it can be disabled – There must be more than one CNA Agent in a zone for intra-zone testing to occur X Y Cell coloring is based on criteria that will be discussed in the next course module © 2006 Avaya Inc. All rights reserved. 36 Avaya – Proprietary & Confidential. For Internal Use Only.

Zone Matrix “Tool Tip” – Hover on Cell © 2006 Avaya Inc. All rights

CNA 3. 1 Chatter § 2 -Basic Operation Zone Matrix Scatterplot – Click on

CNA 3. 1 Chatter § 2 -Basic Operation Zone Matrix Data Table (Data Tab

Chatter Trend Templates © 2006 Avaya Inc. All rights reserved. 41 CNA 3. 1

CNA 3. 1 Chatter § 2 -Basic Operation Topology - Chatter Edge (Trend) Template

CNA 3. 1 Chatter § 2 -Basic Operation Chatter Reports © 2006 Avaya Inc.

Chatter Reports – Cell Report © 2006 Avaya Inc. All rights reserved. 44 CNA

Chatter Reports – Edge Report © 2006 Avaya Inc. All rights reserved. 45 CNA

Chatter Show Commands © 2006 Avaya Inc. All rights reserved. 46 CNA 3. 1

Show Chatter – Show Options © 2006 Avaya Inc. All rights reserved. 47 CNA

CNA 3. 1 Chatter § 2 -Basic Operation Show zone © 2006 Avaya Inc.

CNA 3. 1 Chatter § 2 -Basic Operation Show Cell © 2006 Avaya Inc.

CNA 3. 1 Chatter § 2 -Basic Operation Show Cell Options © 2006 Avaya

CNA 3. 1 Chatter § 2 -Basic Operation Show Edge © 2006 Avaya Inc.

CNA 3. 1 Chatter § 2 -Basic Operation Show Edge Options © 2006 Avaya

Show Edge Option – “all-datapoints” CNA 3. 1 Chatter § 2 -Basic Operation Note: This is the just the historical data plot for the edge © 2006 Avaya Inc. All rights reserved. 53 Avaya – Proprietary & Confidential. For Internal Use Only.