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FAQ: What are the different ways to specify interfaces for the UM unicast resolver daemon (LBMRD)?
Answer


1. Starting in UM6.12, the lbmrd interface can be specified as a simple IP addresses, a CIDR network specification (e.g. 10.1.2.0/24), a quoted device name (e.g. "eth0"), or a DNS host name. The lbmrd will report an error if an invalid interface specification is configured. Prior to UM6.12, the lbmrd daemon could only be configured via address and port.  


Example:


#Starting LBMRD using IP

lbmrd -i 10.1.2.4 -p 13000 


#Starting LBMRD using CIDR

lbmrd -i 10.1.2.0/24 -p 13000 


#Starting LBMRD using interface name

lbmrd -i "p2p1" -p 13000 


#Starting LBMRD using DNS​ host name

lbmrd -i name.company.com -p 13000



2. Application can also specify DNS host names when configuring resolver daemons using the resolver_unicast_daemon context configuration. CIDR notation for resolver_unicast_daemon however, is not supported as of UM6.12.  


Example:

context resolver_unicast_daemon name.company.com:12456



More Information
Note:
If the LBMRD process is started using interface name and if the interface IP address changes after a NIC/system restart, the UM applications would not be able to find the LBMRD, which would affect the entire topic resolution process.

Applies To
Product: Ultra Messaging
Problem Type: Configuration
User Type: Administrator
Project Phase: Configure; Implement
Product Version:
Database:
Operating System:
Other Software:

Reference

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Last Modified Date:7/15/2019 10:32 AMID:205707
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