Configuring Geographic Separation Of Active And Standby Hosts - Cisco PGW 2200 Software Installation And Configuration Manual

Chapter 4 Configuring the Cisco PGW 2200 Softswitch Software
Parameter
*.IP_Addr1
*.IP_Addr2
*.IP_Addr3
*.IP_Addr4
*.Virtual_IP_Addr1
*.Virtual_IP_Addr2

Configuring Geographic Separation of Active and Standby Hosts

This subsection describes how to configure Cisco PGW 2200 Softswitch hosts that are geographically
separated and positioned on different subnets, such as for a campus or WAN.
Table 4-6
separation) the Cisco PGW 2200 Softswitch:
Table 4-6
Software release version
Total end-to-end delay, one way
Packet loss
Bandwidth limitation
If improved SIP automatic switchover
support is enabled...
OL-18083-14
presents limitations, implications, and caveats taht pertain to remotely locating (physical
Geographic Separation Requirements
Condition
Cisco PGW 2200 Softswitch Release 9.8 Software Installation and Configuration Guide
Modification
Enter the IP address of the bge0 interface.
Enter the IP address of the bge1 interface (if configured).
Enter the IP address of the bge2 interface (if configured).
Enter the IP address of the bge3 interface (if configured).
Enter a virtual IP addresses for the
Cisco PGW 2200 Softswitch used for SIP Failover Support
(optional).
Enter a virtual IP addresses for the
Cisco PGW 2200 Softswitch used for SIP Failover Support
(optional).
Cisco PGW 2200 software 9.3(2) or later (with
associated operating system and hardware
requirements).
Delay is the length of time it takes to send a message
from a source to a destination, such as from Cisco
PGW 2200 to SLT, Cisco PGW2200 to GW, or Cisco
PGW 2200 to Cisco PGW 2200.
Must be less than 150 milliseconds.
Packet loss is defined as missing packets with a message.
Must not exceed 1% (preferably, less than 0.5%).
Note For packet loss rates below 0.5%, increase the
RUDP receive window size (*. rudpWindowSz)
to 64 for increased performance.
Directly related to end-to-end delay. There are no special
requirements.
Both the Cisco PGW 2200s should be part of the same IP
subnet.
Configuring the Execution Environment
Requirement
4-33