Mais conteúdo relacionado Cisco QoS: Design and Best Practices for Enterprise Networks1. Cisco QoS: Design and Best Practices
for Enterprise Networks
Presenters:
Ken Briley
Technical Lead,
Cisco Systems, Inc.
Patrick Hubbard
Head Geek, SolarWinds Worldwide, LLC
© 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
2. A Few Notes about Today’s Session
» Today’s content will cover QoS design tips for Network Admins
We will discuss QoS design and best practices
And CBQoS reporting with SolarWinds NTA
» Ask questions!!!
We have a Q&A session
Don’t wait until the end – Use the chat box and we will do our best to cover
them all
No attendee left behind – We will email you the answers
» Today’s Session is being recorded
solarwinds.com
slideshare.com
You will get the links by email soon
© 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
Today’s Presenters
Ken Briley
Technical Lead,
Cisco Systems, Inc.
Patrick Hubbard
Head Geek,
SolarWinds
Worldwide, LLC
3. Today’s Session Agenda
• SolarWinds® Overview
• Ken Briley talks about ‘QoS Design and Best Practices’
• QoS Monitoring
• SolarWinds NetFlow Traffic Analyzer and QoS Reports
• Q&A
© 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
4. SolarWinds Overview
Provides enterprise-class network, systems, virtualization, and storage resource
management software that is powerful, easy-to-use, and affordable
Rapidly Growing & Highly Profitable IT Management Company
» Founded in 1999 to deliver IT management software that works for you – and that delivers on our
mission of "unexpected simplicity."
» We sell to businesses of all sizes from SMB to Large Enterprise
» Over 100,000 customers in 170 countries
» More than 450 of the Fortune 500 are customers
» More than one million registered end-users have downloaded our free tools
© 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
4
6. QoS Design
Agenda
• End-to-End QoS Design Strategy Review
• Campus QoS Design Considerations & Recommendations
• WAN QoS Design Considerations & Recommendations
• Summary and References
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
7. QoS Design Strategy Review
Trends In Internet Usage
• By 2015…
Global IP traffic will increase 8-fold
The number of IP devices will be more than twice the global population
Wireless traffic will exceed wired
Non-PC traffic (smartphones, tablets etc.) will account for 15% of all traffic
90% of consumer internet traffic will be video
http://www.cisco.com/en/US/solutions/collateral/ns341/ns525/ns537/ns705/ns827/white_paper_c11481360_ns827_Networking_Solutions_White_Paper.html
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
8. QoS Design Strategy
Trends in Voice, Video and Data Media Applications
Data
Convergence
Media Explosion
• IP Video Conf
Video
• IP Telephony
Voice
Connectivity
Data
Apps
• App Sharing
• Web/Internet
• Messaging
• Email
Leveraging
Investment
Data
Apps
• IP Telephony
• HD Audio
• Softphone
• Other VoIP
• App Sharing
• Web/Internet
• Messaging
• Email
Co-Existence
© 2013 Cisco and/or its affiliates. All rights reserved.
WebEx
Web
Email
Messaging
Voice
• IP Video Conf
• Surveillance
• Video Telephony
• HD Video Conf
• VoD Streaming
TelePresence
Video
• Internet Streaming
• Internet VoIP
• YouTube
• MySpace
• Other
Ad-Hoc App
Unmanaged
Collaborative Media
Experience
Assurance
Cisco Public
9. QoS Design Strategy Review
RFC 4594-Based Strategic QoS Recommendations
Application
Per-Hop
Admission
Queuing &
Application
Class
Behavior
Control
Dropping
Examples
VoIP Telephony
EF
Required
Priority Queue (PQ)
Cisco IP Phones (G.711, G.729)
Broadcast Video
CS5
Required
(Optional) PQ
Cisco IP Video Surveillance / Cisco Enterprise TV
Realtime Interactive
CS4
Required
(Optional) PQ
Cisco TelePresence
Multimedia Conferencing
AF4
Required
BW Queue + DSCP WRED
Cisco Unified Personal Communicator, WebEx
Multimedia Streaming
AF3
Recommended
BW Queue + DSCP WRED
Cisco Digital Media System (VoDs)
Network Control
CS6
BW Queue
EIGRP, OSPF, BGP, HSRP, IKE
Call-Signaling
CS3
BW Queue
SCCP, SIP, H.323
Ops / Admin / Mgmt (OAM)
CS2
BW Queue
SNMP, SSH, Syslog
Transactional Data
AF2
BW Queue + DSCP WRED
ERP Apps, CRM Apps, Database Apps
Bulk Data
AF1
BW Queue + DSCP WRED
E-mail, FTP, Backup Apps, Content Distribution
Best Effort
DF
Default Queue + RED
Default Class
Scavenger
CS1
Min BW Queue (Deferential)
YouTube, iTunes, BitTorent, Xbox Live
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
10. EE820906—Figure 9-6: Expanded QoS Model Based on RFC 2597-Clarification & RFC 5865
Application Class
PHB Marking
Admission Control
PHB Queuing & Dropping
Application Examples
VoIP Telephony
EF
Required
Priority Queue (PQ)
Cisco IP Phones
VoIP - Admitted
DSCP 44
Required
Priority Queue (PQ)
Admitted Voice
Broadcast Video
CS5
Required
(Optional) PQ
Cisco IPVS / Enterprise TV
BV-Admitted
DSCP 41
Required
(Optional) PQ
Admitted Broadcast Video
Realtime Interactive
CS4
Required
(Optional) PQ
Cisco TelePresence
RI-Admitted
DSCP 33
Required
(Optional) PQ
Admitted TelePresence
AF41
TANDBERG EX / MXP
DSCP 35
MM-Conferencing
Admitted MM-Conferencing
Required
BW Queue + DSCP WRED
AF42
AF43
Cisco WebEx
AF3
MM-Streaming
Jabber / TANDBERG Movi
Cisco Cast
AF32
Recommended
BW Queue + DSCP WRED
AF33
Cisco Show-and-Share
Cisco Digital Signs
Network Control
CS6
BW Queue
EIGRP, OSPF, BGP, IKE
Call-Signaling
CS3
BW Queue
SCCP, SIP, H.323
OAM
CS2
BW Queue
SNMP, SSH, Syslog
AF21
Transactional Data
Order Processing Apps
AF22
BW Queue + DSCP WRED
CRM / ERP Apps
AF23
AF11
Bulk Data
Messaging Apps
Email
AF12
BW Queue + DSCP WRED
AF13
FTP
Backups
Best Effort
DF
Default Queue + RED
Default Class
Scavenger
CS1
Min BW Queue
YouTube, iTunes, BitTorent
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
11. QoS Design Strategy Review
Business Requirements Will Evolve and Expand over Time
5-Class Model
8-Class Model
Voice
12-Class Model
EF
Voice
Realtime Interactive
Voice
Signaling
Transactional Data
Network Control
Broadcast Video
CS5
AF4
EF
CS3
CS4
Multimedia Conferencing AF4
Interactive Video
Control
EF
Multimedia Streaming
AF3
CS3
Signaling
CS3
CS6
CS6
Network Control
Network Management
Transactional Data
AF2
Transactional Data AF2
CS2
AF2
Bulk Data
AF1
Bulk Data
AF1
Best Effort
DF
Best Effort
DF
Best Effort
DF
Scavenger
CS1
Scavenger
CS1
Scavenger
CS1
Time
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
12. QoS Design Strategy At-A-Glance
http://www.cisco.com/en/US/docs/solutions/Enterprise/Video/qosmrn.pdf
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
13. Campus QoS Design Considerations &
Recommendations
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
14. Campus QoS Design—Simplified
Agenda
• End-to-End QoS Design Strategy Review
• Campus QoS Design Considerations & Recommendations
• WAN QoS Design Considerations & Recommendations
• Summary and References
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
15. Campus QoS Design Considerations
The Case for Campus QoS
• The primary role of QoS in campus networks is not to control latency or
jitter (as it is in the WAN/VPN), but to manage packet loss.
• In GE/10GE campus networks, it takes only a few milliseconds of
congestion to cause instantaneous buffer overruns resulting in packet
drops.
• Applications—particularly HD video applications—are extremely sensitive
to packet drops, to the point where even 1 packet dropped in 10,000 is
discernable by the end-user.
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
16. Campus QoS Design Considerations
Implications of Video Compression on Packet Loss Tolerance
1920 lines of Vertical Resolution (Widescreen Aspect Ratio is 16:9)
1080 x 1920 lines =
1080 lines of Horizontal
Resolution
2,073,600 pixels per frame
x 3 colors per pixel
x 1 Byte (8 bits) per color
x 30 frames per second
= 1,492,992,000 bps
or 1.5 Gbps Uncompressed
Cisco H.264-based HD Codecs transmit 3-5 Mbps per 1080p image
which represents over 99.67% compression (300:1)
Therefore packet loss is proportionally magnified in overall video quality
Users can notice a single packet lost in 10,000—Making HD Video
One Hundred Times More Sensitive to Packet Loss than VoIP!
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
17. Campus QoS Design Overview
VoIP vs. HD Video—At the Packet Level
Voice Packets
1400
1400
1000
Video Packets
1000
Video
Frame
Bytes
600
Audio
Samples
600
200
200
20 msec
Time
© 2013 Cisco and/or its affiliates. All rights reserved.
33 msec
Cisco Public
Video
Frame
Video
Frame
18. Campus QoS Design Considerations
How Long Can Queue-Buffers Accommodate Line-Rate Bursts?
Gbps Linecard Example (WS-X6148A-GE-TX)
140
Gbps Line Rate
Gbps Line Rate: 1 Gbps = 125 MB/s
or 125 KB/ms
100
80
Total Per-Port Buffer: 5.4 MB
60
40
Total Per-Queue Buffer*: 1.35 MB
20
0
10
30
50
70
90
110
130
150
170
190
210
230
250
270
290
310
330
350
370
390
410
430
450
470
490
510
530
550
570
590
610
630
650
670
690
710
730
750
770
790
810
830
850
870
890
910
930
950
970
990
Bytes Per ms
120
Total Per-Queue Buffering Capacity: 10.8 ms
ms
*Assuming (4) equal-sized queues
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
19. Campus QoS Design Considerations
How Long Can Queue-Buffers Accommodate Line-Rate Bursts?
10 Gbps Linecard Example (WS=X6716-10GE)
1400
10 Gbps Line Rate
Gbps Line Rate: 10 Gbps = 1.25 GB/s
or 1.25 MB/ms
1000
800
Total Per-Port Buffer: 90 MB
600
400
Total Per-Queue Buffer*: 11.25 MB
200
0
10
30
50
70
90
110
130
150
170
190
210
230
250
270
290
310
330
350
370
390
410
430
450
470
490
510
530
550
570
590
610
630
650
670
690
710
730
750
770
790
810
830
850
870
890
910
930
950
970
990
Bytes Per ms
1200
Total Per-Queue Buffering Capacity: 9.0 ms
ms
*Assuming (8) equal-sized queues
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
20. Campus QoS Design Considerations
Strategic QoS Design Principles
• Always perform QoS in hardware rather than software when a choice
exists
• Classify and mark applications as close to their sources as technically and
administratively feasible
• Police unwanted traffic flows as close to their sources as possible
• Enable queuing policies at every node where the potential for congestion
exists
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
21. Campus QoS Design Considerations
Campus QoS Tools and Options
• Global Default QoS Setting
• Trust States and Conditional Trust
• Per-Port QoS, Per-VLAN QoS, Per-Port/Per-VLAN QoS
• Ingress QoS Models
• Egress QoS Models
• EtherChannel QoS
• QoS Roles in a Campus
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
22. Campus QoS Design Considerations
Trust States and Operations
CoS = 5
DSCP = 46
CoS = 5
DSCP = 46
Untrusted
no [mls] qos trust
Trust CoS
[mls] qos trust
cos
CoS = 0
Internal
DSCP = 0
DSCP = 0
CoS-to-DSCP Mapping Table
CoS 0 0
CoS 4 32
CoS 1 8
CoS 5 40
CoS 2 16
CoS 6 48
CoS 3 24
CoS 7 56
mls qos map cos-dscp 0 8 16 24 32 40 48 56
CoS = 5
Internal
DSCP = 40
CoS = 5
DSCP = 46
Trust DSCP
[mls] qos trust dscp
DSCP = 40
CoS = 5
Internal
DSCP = 46
© 2013 Cisco and/or its affiliates. All rights reserved.
DSCP = 46
Cisco Public
23. Campus QoS Design Considerations
Conditional Trust Operation
Cisco TelePresence Example
Trust Boundary
Successful “Condition” Met (i.e. CDP negotiation successful)
Trust is Dynamically Extended to Cisco 7975G IP Phone
2
1
Cisco 7975G: Voice CoS 5 & DSCP EF
Call-Signaling CoS 3 & DSCP CS3
3
TelePresence Primary Codec: Voice + Video CoS 4 & DSCP CS4
Call-Signaling CoS 3 & DSCP CS3
4
CoS-to-DSCP Map:
CoS 5 DSCP EF (46)
CoS 4 DSCP CS4 (32)
CoS 3 DSCP CS3 (24)
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
24. Campus QoS Design Considerations
Trust Boundary
Trust Boundaries
Access-Edge Switches
Conditionally Trusted Endpoints
Example: IP Phone + PC
mls qos trust device cisco-phone
Unsecure Endpoint
no mls qos trust
© 2013 Cisco and/or its affiliates. All rights reserved.
Trust Boundary
Secure Endpoint
Example: Software-protected PC
With centrally-administered QoS markings
mls qos trust dscp
Cisco Public
25. Campus QoS Design Considerations
Per-Port QoS vs. Per-VLAN QoS
Per-Port QoS
Per-VLAN QoS
Policy map is applied to the logical
VLAN interface
VLAN Interfaces
VLAN 10
VLAN 20
VLAN Interfaces
VLAN 10
VLAN 20
Physical Ports
Physical Ports
Policy map is applied to the physical
switch port
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
26. Campus QoS Design Considerations
Per-Port/Per-VLAN QoS
VLAN Interfaces
DVLAN 10
VVLAN 110
DVLAN policy map is applied
to the Data VLAN (only)
on a given trunked switch port
Trunked Physical Ports
VVLAN policy map is applied
to the Voice VLAN (only)
on a given trunked switch port
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
27. Campus QoS Design Recommendations Ingress QoS Models
No Trust (Untrusted)
Trust CoS
Trust DSCP
Marking Policies
VoIP Classifier
Signaling Classifier
Multimedia Conferencing Classifier
Signaling Classifier
Transactional Data Classifier
Bulk Data Classifier
Scavenger Classifier
Best Effort (Class-Default)
(Optional) Policing Policies
Mark EF
VVLAN
Signaling Policer (<32 kbps)
Mark AF41
Mark CS3
Mark AF21
Mark AF11
Mark CS1
Mark DF
DVLAN
Yes
No
MM-Conf Policer (<5 Mbps)
Mark CS3
VoIP Policer (<128 kbps)
Yes
No
Yes
No
Signaling Policer (<32 kbps)
Yes
No
Trans-Data Policer (<10 Mbps)
Yes
No
Bulk Data Policer (<10 Mbps)
Yes
No
Scavenger Policer (<10 Mbps)
Yes
No
Best Effort Policer (<10 Mbps)
Yes
No
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
Drop
Drop
Drop
Drop
Remark to CS1
Remark to CS1
Drop
Remark to CS1
Ingress Queuing Policies
(if required and supported)
Trust Device / Conditional Trust
28. Campus QoS Design Recommendations
Queuing and Dropping Recommendations
• Catalyst Queuing is done in hardware and varies by platform/linecard and is
expressed as: 1PxQyT
Example: 1P3Q8T means:
1 PQ
3 non-priority queues, each with
Best Effort
≥ 25%
8 drop-thresholds per queue
• Minimum queuing capabilities is 1P3QyT
Scavenger/Bulk
≤ 5%
• Realtime (PQ) should be less than 33% of link
Guaranteed BW
• Best-Effort Queue should be guaranteed at 25% of link
• Scavenger/Bulk queue should be minimally provisioned
• Enable congestion-avoidance on non-priority queues (WRED, WTD, DBL)
© 2013 Cisco and/or its affiliates. All rights reserved.
Realtime
≤ 33%
Cisco Public
29. QoS Design—Simplified
Agenda
• End-to-End QoS Design Strategy Review
• Campus QoS Design Considerations & Recommendations
• Cisco Catalyst 2960/3560/3750 QoS Design
• Cisco Catalyst 4500 QoS Design
• Cisco Catalyst 6500 QoS Design
• WAN QoS Design Considerations & Recommendations
• Summary and References
• Appendix: AutoQoS
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
30. Branch Router Port Roles
Queuing/Dropping/Shaping/
Link-Efficiency Policies for
Branch-to-Campus Traffic
Classification and Marking (+ NBAR2)
Policies for Branch-to-Campus Traffic
Branch Router
Branch
Switch
WAN/VPN
WAN Edge
LAN Edge
Optional: DSCP-to-CoS Mapping Policies
for Campus-to-Branch Traffic (to Support
Legacy Branch Switches that Read Only CoS)
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
30
31. WAN/VPN Router and Switch Interface QoS Roles
WAN/VPN Services Block
WAN
Aggregation
Routers
Private WAN
MPLS VPN
Metro Ethernet
IPSec VPN
Switch Port to Switch Port or Router Interface:
WAN/VPN Edge Router Interface:
• Trust-DSCP
• No Trust (IOS default)
• 1P3QyT or 1P7QyT Queuing
• LLQ/CBWFQ policies
• Additional VPN-specific QoS policies (as required)
Router Interface to Switch Port :
• No Trust (IOS Default)
• (Optional) LLQ/CBWFQ policies (only if potential for
congestion exists in WAN-to-LAN direction)
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
32. Cisco MPLS VPN Design
Campus VPN
Block
E
E
Branch 1
F
F
E
MPLS VPN
F
F
E
Branch 2
CE Routers
PE Routers
CE Routers
Enterprise Subscriber (Unmanaged CE Routers)
E
≤ 33%
of BW
Outbound Policies:
Inbound Policies:
HQoS Shaper (if required)
+ LLQ for VoIP (EF), BV (CS5), RTI (CS4)
+ Remark (if necessary)
+ CBWFQ for All Other Traffic Classes
+ Remark (if necessary)
Service Provider:
Outbound Policies:
F
(Trust DSCP)
+ Restore Markings (if necessary)
+ Restore Markings (if necessary)
Inbound Policies:
+ LLQ for Real-Time Classes
+ CBWFQ for All Other Traffic Classes
(Trust DSCP)
Police on a per-Class Basis
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
33. Cisco WAN QoS Design
QoS Design Steps—Cisco ISRG2/ASR1k
1. Verify SP Policy (MPLS transport only)
2. Configure Egress Queuing
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
34. Cisco MPLS VPN Design
Four-Class SP Model Enterprise Mapping Example
Application
DSCP
Network Control
CS6
VoIP Telephony
EF
Broadcast Video
CS5 CS2
EF
CS5
Multimedia Conferencing
AF4 AF2
CS6
Realtime Interactive
CS4 CS5
Multimedia Streaming
AF3 AF2
AF3
Call Signaling
CS3
Transactional Data
AF2 AF3
AF2
OAM
CS2
CS2
Bulk Data
AF1
Scavenger
CS1
Best Effort
DF
© 2013 Cisco and/or its affiliates. All rights reserved.
4-Class SP Model
CS3
DF
Cisco Public
SP-Real-Time
(RTP/UDP)
30%
SP-Critical 1
(TCP)
20%
SP-Critical 2
(UDP)
20%
SP-Best Effort
30%
35. Cisco MPLS VPN Design
Four-Class SP-Model Bandwidth Allocation Example*
Voice 10%
Best Effort 25%
SP-Best
Effort 30%
Realtime Interactive
20%
SP-Realtime
30%
TelePresence Class Supports:
2x CTS-3000 call at 1080p-Best over a
155 Mbps OC3 link
Scavenger 1%
Bulk Data 4%
SP- Critical 2 SP- Critical 1
20%
20%
OAM 5%
Multimedia Streaming 5%
Network Control 5%
Call-Signaling 5%
Multimedia Conferencing 5%
Transactional Data 10%
Broadcast Video 5%
*Traffic Allocations based on a 155 Mbps / OC3 Line Rate
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
36. Cisco TelePresence MPLS VPN Design
Six-Class SP-Model Enterprise Mapping Example
Application
DSCP
6-Class SP Model
Network Control
CS6
VoIP Telephony
EF
Broadcast Video
CS5 CS2
Multimedia Conferencing
AF4 AF2
Realtime Interactive
CS4
Multimedia Streaming
AF3 AF2
Call Signaling
CS3
CS6
AF3
CS3
Transactional Data
AF2 AF3
AF2
Network Management
CS2
Bulk Data
AF1
Scavenger
CS1
CS2
AF1
CS1
SP-Realtime
(RTP/UDP)
10%
SP-Critical 1
(Realtime Int)
20%
SP-Critical 2
(TCP)
20%
SP-Critical 3
(UDP)
20%
Best Effort
DF
© 2013 Cisco and/or its affiliates. All rights reserved.
EF
CS5
CS6
CS4
DF
Cisco Public
SP-Scavenger
5%
SP-Best Effort
25%
37. Cisco MPLS VPN Design
Six-Class SP-Model Bandwidth Allocation Example*
Voice 10%
Best Effort 25%
SP- Realtime
10%
Realtime Interactive
20%
SP-Best
Effort 30%
SP- Critical 1
20%
Scavenger 1%
Bulk Data 4%
SP- Critical 3 SP- Critical 2
20%
20%
OAM 5%
TelePresence Class Supports:
2x CTS-3000 call at 1080p-Best over a
155 Mbps OC3 link
Network Control 5%
Call-Signaling 5%
Multimedia Streaming 5%
Multimedia Conferencing 5%
Broadcast Video 5%
Transactional Data 10%
*Traffic Allocations based on a 155 Mbps / OC3 Line Rate
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
38. Cisco Sub-Line-Rate Access Design
Sub-Line-Rate Access Policy Overview
Metro
Ethernet
Network
HQoS Capable Switch
or Router
Sub-Line Rate
Ethernet
Access Circuit
Network-Facing
Provider Edges
(N-PE)
Trust DSCP
+ Queuing (CoS 4 & 5 PQ)
≤ 33% of
Shaped
Rate
Trust DSCP
+ Hierarchical QoS (HQoS) Shaping to Sub-Line Access Rate
+ PQ for CoS 5 (VoIP + Broadcast Video) within Shaped Rate
+ PQ for CoS 4 (Realtime Interactive) within Shaped Rate
+ Non-PQ for All Other Traffic Classes
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
39. Cisco WAN QoS Designs At-A-Glance
http://www.cisco.com/en/US/technologies/tk543/tk759/technologies_white_paper0900aecd80295aa8.pdf
Cisco Public
© 2013 Cisco and/or its affiliates. All rights reserved.
http://www.cisco.com/en/US/docs/solutions/Enterprise/Video/qoswanaggasraag.html
40. © 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Public
43. QoS Monitoring
» Ideal QoS monitoring should provide statistics on pre and post policy traffic and
traffic drops
» QoS policy validation : Does the right application/conversation have the right
network priority?
» Advanced monitoring tools can query the ‘CISCO-CLASS-BASED-QOS-MIB’ to collect
statistics for QoS policies
» NetFlow data carries information on QoS priority per conversation
© 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
45. NetFlow Traffic Analyzer
Traffic
UDP NetFlow packets
reports on network
traffic including DSCP
QoS
SNMP poll collects
CBQoS data from
the CBQoS MIB
SolarWinds NTA
© 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
NTA Web GUI
46. NetFlow Traffic Analyzer
NetFlow Traffic Analyzer Features
» SolarWinds NTA : Add-On to SolarWinds Network Performance Monitor
» Leverages on flow technologies such as Cisco NetFlow, sFlow®, IPFIX, J-Flow to report on the
WHO, WHAT, WHEN and WHERE of network traffic
» Uses SNMP to report on the performance of your CBQoS policies
New Release: The Enhanced NTA 4.0
» NTA 4.0 comes with enhanced storage and reporting
» Store all collected flow data with 1 minute granularity forever!
» 5x more flow processing power and better load times during report generation
© 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
47. QoS Reporting with NTA
» Details about CBQoS policies applied on an interface including nested policies and
direction (inbound traffic vs. outbound traffic)
» Information on the amount of traffic before and after the effect of each QoS policy
» Pre and post policy statistics available for each class as well as for nested policies
» Drop traffic details – Amount of traffic dropped on an interface per QoS policy
including for each QoS class
» Helps validate the performance of your QoS policies
© 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
49. QoS Reporting with NTA
» NTA supports NetFlow v5 and Flexible NetFlow
» NetFlow data includes ToS information for
each IP conversation
» ToS (DSCP) field reporting in NTA can help
identify mismarked IP traffic
» NTA can report on protocol, applications, end
points and IP conversations under each ToS
© 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
50. Resources
Download a free fully functional 30-day trial at
solarwinds.com/nta
Video
Network Performance Monitor Overview
Intro to CBQoS Monitoring
All QoS features:
http://www.solarwinds.com/solutions/network-qos-report.aspx
Join our community of 150,000+ IT pros at www.thwack.com
© 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
51. Questions?
Follow us on Twitter®
@headgeeks
@solarwinds
Questions?
Thank you for attending!
© 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
52. Thank You!
The SOLARWINDS and SOLARWINDS & Design marks are the exclusive property of SolarWinds
Worldwide, LLC, are registered with the U.S. Patent and Trademark Office, and may be registered or
pending registration in other countries. All other SolarWinds trademarks, service marks, and logos
may be common law marks, registered or pending registration in the United States or in other
countries. All other trademarks mentioned herein are used for identification purposes only and may
be or are trademarks or registered trademarks of their respective companies.
© 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.