Ethernet Hot Standby Solution
840 USE 106 00 January 2003 173
Address Swap Times

Description The following table details what the "time for an Address swap" comprises, s uch as

the time to close connections, time to swap IP addresses, or time to establish

connections.

The following table shows the swap time for each of the Ethernet services.

Service Typical Swap Time Maximum Swap Time
Swap IP Addresses 6 ms 500 ms
I/O Scanning 1 initial cycle of I/O Scanning 500 ms + 1 initial cycle of I/O
scanning
Global Data For times, please see the
840USE11600,

Quantum

NOE 771 xx Ethernet

Modules User Guide

500 ms + 1 CPU scan
Client Messaging 1 CPU scan 500 ms + 1 CPU scan
Server Messaging 1 CPU scan + the time of the
client reestablishment
connection
500 ms + the time of the client
reestablishment connection
FTP/TFTP Server The time of the client
reestablishment connection
500 ms + the time of the client
reestablishment connection
SNMP 1 CPU scan 500 ms + 1 CPU scan
HTTP Server The time of the client
reestablishment connection
500 ms + the time of the client
reestablishment connection