Enabling DNS/DHCP Server Network Redundancy from the Address Manager user interface - BlueCat Address Manager - 9.0.0

Address Manager Administration Guide

BlueCat Address Manager

Address Manager supports network redundancy through port bonding on 4-port DNS/DHCP Server appliances only.

Configuring network redundancy on a 4-port DNS/DHCP Server appliance provides you with better network capacity and reliability by creating multi-gigabit pipes to transport traffic through the highest traffic areas of the network. Port bonding can be used for load balancing, and/or interface redundancy.

For most scenarios, BlueCat recommends enabling network redundancy from the Address Manager user interface when you are adding or replacing an DNS/DHCP Server.

Supported bonding modes

DNS/DHCP Server appliances support:
  • FailoverActive/Backup bonding where only one interface in the bond is active (Primary). This allows the secondary interface (eth3) to take over transparently if the Primary interface (eth0) fails.
  • Load BalancingActive/Active bonding using industry standard 802.3ad aggregation protocol, where aggregation groups share the same speed and duplex settings. Each interface shares the throughput and each interface is active; neither interface is a primary nor a secondary.
    Note: Active/Active (802.3ad) load balancing must be enabled from the Address Manager user interface when adding or replacing a DNS/DHCP Server. If enabling Active/Active load balancing, you must first enable Active/Active on the DNS/ DHCP Server from Address Manager, then configure Active/Active (802.3ad) on your network switch. This protects against loss of connectivity with the DNS/DHCP Server.