Clan And Processor Clan Qos And Cidr Support - Avaya Communication Manager Administrator's Manual

CLAN and processor CLAN QoS and CIDR support

Previous IP packet addressing and routing procedures for the TN799 Control-LAN circuit pack have not
always been compatible with Avaya Communication Manager customers' evolved networks. Quality of
Service (QoS) features are necessary to provide superior call quality for voice-over-IP (VoIP) signaling.
Although classful IP addressing structures were used in the beginning of VoIP development, enhancing
C-LAN support of Classless Inter-Domain Routing (CIDR) and the closely-related Variable Length
Subnet Mask (VLSM) paradigms provide the platforms for Communication Manager with enhanced IP
addressing and routing flexibility, while ensuring customer-network compatibility.
Configurations/Platforms
To use CIDR and IP QoS, the TN799DP Control-LAN circuit pack is required for:
•
Avaya media gateways (with the Avaya DEFINITY CSI, DEFINITY SI, DEFINITY Server R,
and the Avaya S8700 Media Server)
•
Avaya S8100 Media Servers
To use CIDR and IP QoS, the TN799DP C-LAN circuit pack is not required for:
•
S8300 Media Server
The S8300 Media Server uses its processor CLAN feature. The S8100 Media Server with a CMC1 Media
Gateway confiuration and S8100 Media Server with a G600 Media Gateway configuration use a
TN799DP Control-LAN circuit pack.
Windows Operating System
Whether the TN799 Control-LAN circuit pack tags frames with VLAN and user-priority values is
administered on the IP Network Region screen. However, for the processor CLAN function on S8100
Media Server with a CMC1 and S8100 Media Server with a G600, the operating system also controls
tagging.
•
If the IP Network Region screen is administered to tag, but the Windows operating system is set
to not tag, then the processor CLAN function will not tag.
•
If the Windows operating system is set to tag, but the IP Network Region screen is administered
to not tag, then the S8100 Media Server with a CMC1 or S8100 Media Server with a G600 fill in
the VLAN_ID and 802.1p fields of the extended ethernet header, but with the VLAN_ID to 0, and
the priority to 0.
Tagging is administered on S8100 Media Server with a CMC1 and S8100 Media Server with a G600 as
follows:
1
Log on to S8100 Media Server with a G600 Media Gateway/ S8100 Media Server with a CMC1
using the Windows log-in.
2
Double-click the Intel PROSet icon in the Control Panel or in the system tray.
3
Select the first adapter from the list and right click on it.
There are three adapters; PCLAN uses the first one.
Administrator's Guide for Avaya Communication Manager
November 2003
CLAN and processor CLAN QoS and CIDR support
Feature Reference
1493