Руководство По Проектированию для Cisco Cisco IP Contact Center Release 4.6.2
12-12
Cisco Unified Contact Center Enterprise 7.5 SRND
Chapter 12 Bandwidth Provisioning and QoS Considerations
Quality of Service
For details about Cisco Unified Communications packet classifications, refer to the Cisco Unified
Communications Solution Reference Network Design (SRND) guide, available at
Communications Solution Reference Network Design (SRND) guide, available at
http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_implementation_design_guides
_list.html
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Note
Cisco has begun to change the marking of voice control protocols from DSCP 26 (PHB AF31) to
DSCP 24 (PHB CS3). However, many products still mark signaling traffic as DSCP 26 (PHB AF31).
Therefore, in the interim, Cisco recommends that you reserve both AF31 and CS3 for call signaling.
DSCP 24 (PHB CS3). However, many products still mark signaling traffic as DSCP 26 (PHB AF31).
Therefore, in the interim, Cisco recommends that you reserve both AF31 and CS3 for call signaling.
Table 12-2
Public Network Traffic Markings (Default) and Latency Requirements
Priority
Server-Side IP Address and Port
One-Way Latency
Requirement
Requirement
DSCP / 802.1p
Marking
Marking
High
IP address: Router's high-priority public IP address
TCP port:
•
40003 + (i#
40) for DMP high-priority connection on A
•
41003 + (i#
40) for DMP high-priority connection on B
UDP port: 39500 to 39999 for UDP heartbeats if QoS is not enabled on
Unified ICM
Unified ICM
200 ms
AF31 / 3
Medium
IP address: Router's high-priority public IP address
TCP port:
•
40017 + (i#
40) for DMP high-priority connection on A
•
41017 + (i#
40) for DMP high-priority connection on B
1,000 ms
AF31 / 3
Low
IP address: Router's non-high-priority public IP address
TCP port:
•
40002 + (i#
40) for DMP low-priority connection on A
•
41002 + (i#
40) for DMP low-priority connection on B
5 seconds
AF11 / 1