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ON-LINE CONFIGURATION
OPERATION
A - 6
I-E96-213A
®
Primary
Backup
n
n+1
01xx0x0x 00xx1x0x
z
5
z
{
4. The backup MFC can now be placed in EXECUTE mode
provided no errors remain in the new configuration.
Additional configuration changes can be made by entering
CONFIGURE mode (Step 2). If no changes have been made at
this point, a stop and reset returns the backup MFC to Step 1.
Primary
Backup
n
n+1
01xx0x0x 10xx1x0x
z
{
z
5
5. When the checkpoint data for the old configuration is
received from the primary MFC, the reconfigured backup MFC
can assume the role of the primary MFC if a failure is detected
in the old configuration (refer to Step 9). However, the primary
MFC still indicates that no backup is available when the con-
figuration is different.
Additional configuration changes can be made by entering
CONFIGURE mode (Step 2).
If no changes have been made at this point, a stop and reset
returns the backup MFC to Step 1.
Primary
Backup
n
n+1
01xx0x0x 00xx1x0x
z
{
z
{
6. A stop and reset at this step, changes having been made, is
used to tell the reconfigured backup MFC to assume the role of
the primary MFC. The backup MFC enters EXECUTE mode
with the configuration marked as valid.
Primary
Backup
n
n+1
01xx0x0x 10xx1x0x
z
5
z
{
Primary
Backup
n
n+1
01xx0x0x 10xx1x0x
z
{
z
5
7. After the checkpoint data is updated, the backup MFC is
ready to take over the duties of the primary MFC.