Comrex BRIC-Link II, Product Manual

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HotSwap - CrossLock can also be con fi gured to use one network only when the primary network fails. This is
called “HotSwap” mode and is described in detail on page 74 . HotSwap is not a system-wide se ng, and must
be enabled on a par cular network by opening the Network Manager and clicking “Show Advanced Se ngs”. To
enable HotSwap, select the network that will be used as a backup, and open the “Use with CrossLock” op on.
Then change the value from “Yes” to “Backup”, and click “Apply Changes”. This network will then only send ac ve
connec ons when the primary network has failed. Note: a small amount of data is s ll ac ve on this network at
any given me during successful connec ons on the primary network. This ensures a quick ac va on of the backup
network upon primary network failure.
CROSSLOCK CONNECTIONS TO ACCESS MULTIRACK
Without CrossLock ac ve, a codec will make BRIC Normal connec ons to Mul Rack instance #1 on port 9000.
Instance #2 will connect on 9002 and instance #3 will connect on 9003. These are the default BRIC Normal ports
used on the Mul Rack side, but any codec a emp ng to connect to these instances must account for these ports as
if they were non-standard.
The CrossLock connec on between the Comrex hardware happens over a single port (9001) but the BRIC Normal
connec ons take place virtually on their usual legacy ports within that VPN. The system will show these virtual
connec ons happening on ports 9000, 9002 and 9003 (these are the BRIC Normal ports), but the only actual
connec on between hardware is happening on 9001. For this reason, if you only intend to make CrossLock
connec ons to Mul Rack, only UDP port 9001 needs to be open or forwarded.
USING NON STANDARD PORTS FOR CROSSLOCK
In the special circumstance where the default CrossLock port of UDP 9001 can not be used (e.g. several BRIC-Link
II codecs sharing a single IP address), then the process for making manual CrossLock connec ons becomes more
complex. For more informa on on these se ngs, refer to the Technote “Using Mul ple Comrex Codecs Behind A
Single IP Address” on www.comrex.com.