Redundant Bricks Configuration Example Lucent Security Products Configuration Example Series

Lucent Technologies – Proprietary Use pursuant to company instruction Redundant Bricks Note: Configuring a redundant pair of Bricks is a very simple process from a software standpoint. The protocol used is very similar to the VRRP protocol used in router redundancy. The pair of Bricks is administratively treated as one Brick. The physical layer connections on the two Bricks need to be identical to one another. The Bricks share a virtual IP Address and virtual MAC addresses The Session Cache of the two Bricks will be identical at all times.

Lucent Technologies – Proprietary Use pursuant to company instruction Redundant Bricks Any models of Bricks can be configured as a redundant pair. Redundant pairs should always consist of two, same model Bricks. The failover time between Bricks is under 400ms which means no lost sessions or VOIP calls in the event of a failover. The Bricks will have identical configurations and must have all of the same network connections. A dedicated fail over link can be used but is not required. A dedicated fail over link is recommended though, especially in applications that involve real time (RT) protocols like VOIP or IPTV.

Lucent Technologies – Proprietary Use pursuant to company instruction From a software standpoint you will do the following Configure one Brick Turn on the redundancy feature (enable Brick failover) Make a USB flash drive or floppy package Boot the second Brick from that flash drive or floppy. The first step is to configure the physical layer. Make sure that all of the interfaces on the pair of Bricks are going to all of the same places (switches, routers and so forth). If Ethernet 1 on Brick one goes to Ethernet switch ABC then Ethernet 1 on Brick two must also go to Ethernet switch ABC and so on. The next slide shows an example of the physical layer connections. Redundant Bricks

Lucent Technologies – Proprietary Use pursuant to company instruction Configuring a Redundant Pair ALSMS /24 Hub IP Hub Network Servers Pair of Bricks

Lucent Technologies – Proprietary Use pursuant to company instruction This configuration example assumes that you have one Brick already configured. If that is not the case go to the configuration example called “Configuring and Activating a Brick”. Once you have configured the first Brick return to this slide. All we are going to do here is add a redundant Brick. This will require a reboot but can be done with a minor change to your configuration. The two Bricks will appear as one Brick and will be identical in every way. Configuring a Redundant Pair

Lucent Technologies – Proprietary Use pursuant to company instruction Once you have built the physical layer, check to see that Brick that you have already configured is up and communicating with the ALSMS. Click on Monitor>Brick Status>All Bricks. Configuring a Redundant Pair

Lucent Technologies – Proprietary Use pursuant to company instruction From the Brick Editor Screen click on the Failover tab. Then click Enable Brick Failover. Configuring a Redundant Pair

Lucent Technologies – Proprietary Use pursuant to company instruction Take a look at the options that you have here. All of these are covered in detail in the Administrative Guide. For now leave the options at default. Once you have enabled Brick Failover click File>Save and Apply. Reboot the Brick that you just saved to. The next step is to make a Floppy or Flash drive package and boot the second Brick from it. Configuring a Redundant Pair

Lucent Technologies – Proprietary Use pursuant to company instruction Insert your flash drive in the USB port of the ALSMS server. From the menu at the top of the screen select: Brick_Utilities>Make Floppy Package Choose option two: Make USB flash drive on ALSMS host. Click OK. Once the flash drive is done, double click on the Safely Remove Hardware icon at the bottom right of your screen Insert the flash drive in the USB port of the Brick and reboot the Brick. You will hear a single beep notifying you that the process has started and then three beeps notifying you when the process is complete. Remove the flash drive from the USB port on the Brick and reboot the Brick. Configuring a Redundant Pair

Lucent Technologies – Proprietary Use pursuant to company instruction Click on Monitor>Brick Status>All Bricks. Notice that only one Brick shows on the screen but that the state is Up-up. This represents the primary Brick (Up) and the secondary Brick (up). Also notice the Failover Labels field. The number there represents the last four digits of the MAC address on Ethernet zero for that Brick. Although there are two physical Bricks they are administratively treated as one. Configuring a Redundant Pair

Lucent Technologies – Proprietary Use pursuant to company instruction Failovers are generally caused by a power outage or a loss of communications making one Brick “healthier” than the other in which case the “unhealthy” Brick will yield. You can also cause a failover manually from the ALSMS GUI, the ALSMS console or the Brick console. Click on Brick Utilities>Open Brick Console. Once you are at the console type display failover to see the statistics on your pair. While you are at the console type help to see what other useful commands are available. Configuring a Redundant Pair

Lucent Technologies – Proprietary Use pursuant to company instruction If you have an SVGA monitor available, connect it to one of your Bricks (an overhead projector would work also). Once the monitor is connected click on Brick Utilities>Initiate Failover. You will be able to see the failover occurring real time. Initiate another failover and see the failover occur from the other Bricks perspective. Of course the best test is to surf the web and turn off the primary Brick while doing so to make sure that your session is maintained by the backup Brick. Be creative here and do some testing. Look for real time applications on the web and put the failover feature to the test.. Configuring a Redundant Pair

Lucent Technologies – Proprietary Use pursuant to company instruction Configuring a Redundant Pair For more detailed information on configuring this feature click Help>On Line Product Manuals>Administration Guide See the section on Brick Device Failover. The Product Manuals can also be found on your ALSMS CD.