BRILLANTE User Manual, 59300023, rev005
BRILLANTE 1+1 backup in brief
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overall system performance of BRILLANTE by generating
excessive load and network traffic.
The backup BRILLANTE has to have the MAC address of the
eth0 of main BRILLANTE. If this is not defined then the
backup unit cannot replace the main unit. The MAC address
can be obtained from the main BRILLANTE with command:
ifconfig eth0.
This will print out something like this:
eth0
Link encap:Ethernet HWaddr 34:57:BF:C3:62:58
inet addr:10.136.0.14 Bcast:10.136.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3522684 errors:0 dropped:0 overruns:0 frame:0
TX packets:3685018 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:571971977 (545.4 Mb) TX bytes:1217715102 (1161.3 Mb)
Interrupt:16 Base address:0xecc0 Memory:fe100000-fe120000
The MAC address is on the first line. In this example it is:
34:57:BF:C3:62:58.
Triggers
If any of these conditions is met then backup BRILLANTE will
perform fail-over switching.
BRILLANTE 1+1 backup script detects ATM network errors,
disconnected cable and HW failures.
Both main & spare ECMGs are unreachable. The switching is
not performed if an application crash has killed both main and
spare ECMG (The server is online).
The backup BRILLANTE will try once to restart the software
on main BRILLANTE. If this does not help then backup
executes switching.
Backup BRILLANTE cannot connect to main BRILLANTE or
vice versa.
Backup BRILLANTE switches when it detects that main
BRILLANTE is not online anymore. If backup unit loses
power, main Brillante has to make sure that it is not a network
disconnection. So main has to close application processes &
eth0 for a while if backup tries to get online. After a while main
will resume, if backup has not become online.
HW failure is usually noticed by network disconnection.
ATM
ECMG
Application crash
Ethernet
Power loss
HW failure
