Configuring A Local Loopback Interface; Configuring High-Availability Options - Nokia IP40 User Manual

Configuring a Local Loopback Interface

Loopback interfaces enable your BGP connection to stay connected of the interface used to
reach the neighbor. Configure this loopback interface IP address as the source address for the
BGP process to communicate with a remote BGP peer.
Use the following commands to configure loopback interface:
set interface loopback id <value> address <value> mask-length <value>
Use the following commands to view a loopback interface:
show interface loopback <all | id <value>>
Use the following commands to delete a loopback interface:
delete interface loopback id <value>

Configuring High-Availability Options

When high availability (HA) is configured, device monitors the status of BGP peers and dial-up,
based on the WAN failover node. HA triggers VPN tunnels associated with normal priority BGP
peers if it finds all of the high priority BGP peers are unreachable. HA continues to monitor the
status of high priority peers and drops the tunnels associated with lower priority BGP peers as
soon as at least one of the high-priority BGP peers becomes reachable.
Use the following commands to configure the high availability options:
set ha
Use the following commands to view the high availability options:
show ha monitoring-level | wan-failover
The high availability options are explained as follows:
none—no high availability
dialup—this mode is used in Single Device HA. This mode is useful if device has dial-up as
primary Internet connection with multiple dial-up profiles. In this mode, device uses dial-up
profiles for fail over. If the BGP peer becomes unreachable using one profile, the device
automatically switches to the next dial-up profile. This process continues in round-robin
fashion until the BGP peer becomes reachable.
secondary—this mode is used in Single Device HA. This mode is useful it the device has
LAN/PPPOE/PPTO/DHCP/ as primary Internet connection and dial-up as secondary
Internet connection (optionally with multiple profiles). In this mode, device fails over to
secondary Internet connection (dial-up) if all high priority BGP peers become unreachable.
It continues to monitor the status of high priority BGP peers and falls back to primary
Nokia IP40 Security Platform User's Guide v1.1
monitoring-interval <value>
wan-failover <none |dialup | secondary | bgp | bgp-dialup |
bgpexternal>
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