Avaya 1000 Manual page 8

• ELAN subnet:
• TLAN subnet:
• Server subnet:
• Client subnet:
Redundancy of a single CS 1000E system can be achieved through the physical separation
CS 1000E High Availability (HA) Core Call Servers, using of the High Speed Pipe (HSP).
See reference 5 (Communication Server 1000 System Redundancy Fundamentals) for
details.
Source Element: The device or application initiating a data flow.
Source Port(s): This is the default port(s) used by the source device or application. Valid values include: 0 – 65535.
Firewall Timeout: Describes information relevant to firewall timeouts.

Always Open - ports should be permanently Open in the firewall. This typically applies to UDP ports or other
protocols such as ICMP and IPsec which do not use ports. Connections, and therefore timeouts do not apply to these
ports.

None - TCP connections to these ports should NOT be closed due to firewall idle timeouts. They are long lived TCP
connections that can be tracked dynamically in the firewall but must not be timed out. During idle periods, there may
be little or no activity on these connections for long periods of time. Temporary outages may result if connections are
closed in the firewall.

Transient - These are TCP connections that will have frequent activity while open. TCP connections to these ports
can be closed by Firewall connection idle timeouts (>10 minutes).

N/A - Not applicable. These ports are either not used or are dynamic (ephemeral) TCP ports that are part of another
connection with firewall behavior defined for the other end of the TCP connection. Ports associated with the HSP
interface are also included as firewalls are not permitted on the HSP.
Possible WAN DSCP: Those listed in this document are distinguished by whether this traffic could potentially transverse the
WAN. Whether it does or not greatly depends on the VoIP network design. DSCP values provided that are not already marked
would need to be marked by the data switch\router. These non-marked values are recommendations only, and can be
changed to match the data network capabilities, or traffic patterns. Those that are labeled as marked are done so normally by
the configuration in Element Manager (EM) for the CS 1000 Call Server. These values can also be changed if required, with
the exception of the voice traffic (DSCP 46). In addition, all ELAN ports marked by the Avaya solution are done statically and
CANNOT be changed. For ESP, protocol 50, the DSCP value is that of the particular port. For example, if a port has a value
of DSCP 10 when ESP (protocol 50) is not used, it would also have a value of DSCP 10 when using ESP (protocol 50). Those
not labeled are either low priority or not applicable.
Marked DSCP: This column specifies which traffic, by default, is currently marked by the Avaya VoIP solution. For ESP,
protocol 50, the DSCP marking used is that of the particular port. The "Marked as per port rule" for protocol 50, the DSCP
marking will remain as identified for the specified ports on the ELAN or TLAN. The ELAN marking recommended cannot be
changed. For example, if a port has a value of YES for Marked DSCP when ESP (protocol 50) is not used, it would also have
a value of YES for Marked DSCP when using ESP (protocol 50).
Description: Describes the purpose of the data flow.
Comments: Important comments.
AR Rules: Specifies the access restrictions for the various ports. This information only applies to the VXWorks Call Server,
MGC, and VGMC (MC32 and MC32S). The restrictions can be either Not Applicable (N/A), Default (D) or Mandatory (M).
Use pursuant to the terms of your signed agreement or Avaya policy.
Avaya Communication Server 1000 Port Utilization – Issue 4.04
For servers and devices with ELAN network interfaces, including Call Server,
Signaling Server, Media Gateway Controller (MGC), CallPilot Network interfaces.
For servers and devices with TLAN network interfaces, including Signaling Server,
Media Gateway Controller (MGC), TLAN network interfaces.
For servers and devices including CallPilot, Call Center, Telephony Manager (TM)
and other network interfaces.
For IP Phone, PC and other network interfaces.
Avaya – Proprietary.
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