Quality of Service guidelines
328 Avaya Application Solutions IP Telephony Deployment Guide
2. The command to turn on compression is
ip rtp header-compression
in interface
configuration mode. It must be implemented at both ends of the WAN link. When the
command was entered into the router, ip tcp header-compression was also installed
automatically. When either command was removed, the other was automatically removed.
See the Cisco documentation for more specific configurations on other types of WAN links (that
is, Frame Relay and ATM). Configuration for the X330WAN router is very similar to Cisco, and is
well documented in the X330WAN User Guides. For this documentation, see the P330 section
at:
http://www.avaya.com/support
Examples of QoS implementation
This section contains sample commands for QoS implementation on Avaya products and Cisco
products.
Examples given include:
●
Example 1: Cisco router configuration for point-to-point WAN links
●
Example 2: C-LANS cannot tag their traffic
●
Example 3: More restrictions on the traffic
●
Converged infrastructure LAN switches
Example 1: Cisco router configuration for point-to-point WAN
links
There is a three-step process to turn on QoS on a Cisco router:
1. Set up a class map that defines “interesting traffic” to be prioritized.
2. Select a queuing strategy. In this case, use a policy map to set priority. Set up a route map
that sets the priority level (critical).
3. Apply the policy map to an interface.
In
Figure 85: High-quality service across a congested WAN link
on page 329, set priority-aware
Class-Based Weighted Fair Queuing (CB-WFQ) with Low Latency Queuing (LLQ). Although
there are more aggressive QoS strategies, they can have a severe impact on data performance.
Those other strategies, including Priority Queuing, Custom Queuing, and RSVP, can be
implemented at a later date, if conditions warrant. This is a good starting point.
Figure 85: High-quality service across a congested WAN link
on page 329 is used as a
reference point. The objective is to assure high quality of service to IP Telephony applications
across the congested WAN link.
Содержание Application Solutions
Страница 1: ...Avaya Application Solutions IP Telephony Deployment Guide 555 245 600 Issue 3 4 1 June 2005 ...
Страница 20: ...About This Book 20 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 21: ...Issue 3 4 1 June 2005 21 Section 1 Avaya Application Solutions product guide ...
Страница 22: ...22 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 74: ...Avaya Application Solutions platforms 74 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 106: ...Call processing 106 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 124: ...Avaya LAN switching products 124 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 139: ...Issue 3 4 1 June 2005 139 Section 2 Deploying IP Telephony ...
Страница 140: ...140 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 186: ...Traffic engineering 186 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 204: ...Security 204 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 214: ...Voice quality network requirements 214 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 228: ...Avaya Integrated Management 228 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 239: ...Reliability Issue 3 4 1 June 2005 239 Figure 69 S8700 Media Server in a high reliability configuration ...
Страница 274: ...Reliability and Recovery 274 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 275: ...Issue 3 4 1 June 2005 275 Section 3 Getting the IP network ready for telephony ...
Страница 276: ...276 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 350: ...Implementing Communication Manager on a data network 350 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 356: ...Network recovery 356 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 366: ...Network assessment offer 366 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 367: ...Issue 3 4 1 June 2005 367 Appendixes ...
Страница 368: ...Appendixes 368 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 394: ...Access list 394 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 414: ...DHCP TFTP 414 Avaya Application Solutions IP Telephony Deployment Guide ...