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NetStructure™ 480T Routing Switch User Guide
configure inside slb client
configure server slb server
Configure SLB H/A for the switch, using this command:
configure slb failover unit 1 remote 1.10.0.3
local 1.10.0.2 l4-port 1028
One switch in a High Availability pair is designated as unit 1 and
the other is designated as unit 2. VIPs associated with the unit
numbers are primarily serviced by the appropriate switch. The IP
address of the remote switch in the failover pair is 1.10.0.3. The IP
address of the local interface used by the High Availability protocol
to communicate with the remote switch is 1.10.0.2. The Layer 4 port
used by the High Availability protocol to exchange information is
1028.
Along with performing normal status checking on the remote
switch, the High Availability protocol pings the gateway to ensure
that a connection to the client exists. If the connection to the
gateway at IP address 1.10.0.1 fails, the remote switch services all
of the connections. Configure status checking and enable failover
using these commands:
enable slb failover
configure slb failover ping-check 1.10.0.1
enable slb failover ping
Configure the unit numbers on the two sites to determine which of
the High Availability switches will actively serve the VIPs, using
these commands:
configure slb vip site1 unit 1
configure slb vip site2 unit 2
In this example, site1 is serviced by the current switch and the
remote switch (configured as unit 2) services site2. A switch
configured as unit 1 services unit 2’s VIPs only when the remote
switch (configured as unit 2) fails.
Notes on Configuring SLB H/A
These are important notes about the configurations for SLB H/A:
• In the design shown in Figure 18.7, only the servers directly
connected to the switch that is actively servicing the VIP are used