- Access Control List (ACL)
- A portal configuration you can use to filter out messages based on a variety of criteria.
- forwarding cost
- A value assigned to a portal to help determine best-path routing selection.
- UM Router keepalive
- Control messages exchanged between UM Routers to confirm that UM Routers are still running.
- Interest Message
- Control messages exchanged between UM Routers to confirm that UM Routers are still running.
- Originating Transport ID (OTID)
- Unique identifier of a message's transport session at the originating source.
- portal
- A TCP/IP interface (socket) on a UM Router through which the UM Router passes data. Endpoint portals interface TRDs, and peer portals interface peer portals of other UM Routers.
- Topic Resolution Domain (TRD)
- The realm of UDP multicast or unicast connectivity that allows UM topic resolution to occur. Blocking of this UDP connectivity (for example, by a firewall or a restrictive WAN link) defines a TRD's boundaries. Contexts within a TRD must have the same topic resolution configuration option settings (multicast group IP address/port and resolver interface full or CIDR address).
- Use Query
- A periodic control message distributed to all members of a TRD to verify the continued presence of receivers for a given topic or pattern.
- web monitor
- A web-based real-time UM Router statistics and configuration display.