JGrups on Linux With Multiple Network Interfaces

Few hints for those, who want to run JBoss Cache in clustered mode ([a]synchronous replication/invalidation) on Linux machine with multiple network interface cards (NICs) and using UDP/multicasting in OSI layers 4/3 . Here is situation overview:

We need multicast communication through eth1 to other JBoss Cache nodes.

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Cisco MIBs horror

Suppose you want to know what vlans are configured/allowed on individual ports in one of recent Cisco Catalyst switches – quite basic information. SNMP seems to be right protocol for this task. Structure of most Catalyst switches can be discovered using ENTITY-MIB and that’s good news. In entPhysicalTable you can find ports, modules, chassis and … Read more