
Function Description
4/1553-HSC 901 101/2 Uen B 2009-02-27
21
IP DSLAM Restart
Run Boot SW
Is the Appl. SW file
identical to Flash?
Yes No
Run Application SW from Flash
in unmanaged mode
Download Appl. SW
And store in flash
Run application SW in
managed mode
Download and store
Configuration file to Flash
IP Address used
Domain File
Server
Was the last mode
unmanaged?
Yes
No
DHCP procedure
DHCP
Server
Figure 11 Restarting the IP DSLAM (Normal Procedure)
The stored mode – Managed or Unmanaged – is used to determine
whether the IP DSLAM should try to reach the DHCP server or not. If the
last mode was unmanaged, the IP DSLAM will start from the flash
immediately, skipping the DHCP procedure and saving start-up time. The
application will then go on polling for the DHCP server, but End user traffic
would flow in the meantime.
3.2.3.5 Start with Missing Servers
In the following the IP DSLAM behavior is described when one or more
network elements cannot be reached. The descriptions are based on a
distributed network where the DHCP Server and Domain File Server are
not installed on the same machine, but the IP DSLAM behavior will be the
same if the DHCP Server and the Domain File Server are installed on the
same machine. Note that the IP DSLAM continuously saves changes that
are made (both in Application SW and configuration) to Flash. This means
that both the Application SW and the configuration loaded from Flash will
be the last ones used.
Comentarios a estos manuales