Lenovo Flex System Fabric CN4093 Application Manual page 466

466
CN4093 Application Guide for N/OS 8.2
Figure 56. Basic Layer 2 Failover
Internet
Enterprise
Routing Switch
Figure 57 shows a configuration with two trunks, each in a different Failover
Trigger. Switch 1 is the primary switch for Server 1 and Server 2. Switch 2 is the
primary switch for Server 3 and Server 4. VLAN Monitor is turned on. STP is
turned off.
If all links go down in trigger 1, Switch 1 disables all internal ports that reside in
VLAN 1. If all links in trigger 2 go down, Switch 1 disables all internal ports that
reside in VLAN 2.
Figure 57. Two trunks, each in a different Failover Trigger
Internet
Figure 58 shows a configuration with two trunks. VLAN Monitor is turned off, so
only one Failover Trigger is configured on each switch. Switch 1 is the primary
switch for Server 1 and Server 2. Switch 2 is the primary switch for Server 3 and
Server 4. STP is turned off.
If all links in trigger 1 go down, switch 1 disables all internal links to server blades.
Trigger 1
Trigger 1
Trigger 1
Trigger 2
Trigger 1
Enterprise Trigger 2
Routing Switch
Primary Switch
Server 1
Server 2
Server 3
Server 4
Backup Switch
VLAN 1:
VLAN 2:
VLAN Monitor = On
Switch 1
Switch 2
VLAN 1:
VLAN 2:
VLAN Monitor = On
Server 1
Server 2
Server 3
Server 4