Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved


Chapter 4 Rendezvous Gateway : Configuring the Gateway

Configuring the Gateway
Configure the Rendezvous gateway using its browser administration interface, which behaves the same as the rvrd interface—except for the items documented in this chapter.
Local Network Interfaces
Rendezvous documentation uses the term service group to refer to a group of Rendezvous transport objects that specify equivalent service and network parameters—equivalent parameters enable them to share messages with one another.
On its NAB interface, TIBCO Messaging Appliance P-7500 does not use UDP protocols nor IP multicast groups (instead, it routes messages within its specialized hardware). Nonetheless, it emulates the semantics of UDP services and IP multicast groups; that is, the service and network parameters of NAB client transports still govern communication among clients.
Network Specification Field
Rendezvous documentation describes the 3-part network specification—network, multicast groups and send address.
Overrides the Interface (Part 1)
Part 1 of the 3-part network specification determines the hardware interface through which data flows into and out of a gateway’s local network. In the P-7500 these interfaces are fixed, so the gateway overrides this part of the network specification—using only parts 2 and 3 (IP multicast information).
You need not specify part 1 when supplying the network specification field, and we recommend that you omit it for clarity. In Figure 7, notice that when adding the NAB5 network, the administrator specifies only part 2 (that is, ;239.5.5.5); the gateway supplies part 1. If the administrator were to specify part 1 (for example, 1.1.10.3;239.5.5.5), the gateway would override it.
No Loopback
No Broadcast
It is invalid to specify a loopback address or a broadcast address in any part of the network specification field. Similarly, it is invalid to supply a network specification that defaults to a broadcast address or loopback address; for example, the value ;;224.1.1.1 is invalid because the listen address (part 2) defaults to the interface’s broadcast address. (Nonetheless, an empty network specification is valid.)
For background information, see Network Selection in TIBCO Rendezvous Administration.
NAB Local Network
For a service group of NAB clients to communicate with GP transports, you must configure a NAB local network interface in the gateway. The network and service parameters of the NAB local network must match the network and service parameters of the NAB clients. Configure one local network in the gateway for each service group of NAB clients.
When configuring a NAB local network, you must enable the NAB check-box (see Figure 7).
Figure 7 Configuring Local Networks
 
See Also
To navigate to this screen, see Routing Daemon (rvrd): Local Network Interfaces Configuration, in TIBCO Rendezvous Administration.
GP Local Network
For a service group of GP transports to communicate with NAB clients, you must configure a GP local network interface in the gateway. The network and service parameters of the GP local network must match the network and service parameters of the GP transports.
Each service group of GP transports requires a separate GP local network in the gateway in order to communicate with NAB clients.
Subject Gating
You must also configure subject gating for each local network interface, to import and export subjects with respect to the local network. Messages do not flow into or out from a local network until you configure subject gating.
However, subject gating is not sufficient for messages to flow. Clients must also express interest in a subject (by subscribing) before messages can flow across the network boundary.

Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved