Cisco EtherSwitch Service Modules Feature Guide
Information About the Cisco EtherSwitch Service Modules
•Switch 9 because automatic discovery does not extend beyond a noncandidate device, which is switch 7
Figure 4 | Discovery Through Different Management VLANs with a Layer 3 Cluster Command | |
| Switch |
|
| Command | Standby command |
| device | device |
VLAN 9
VLAN 16
Device 3 (management VLAN 16)
VLAN 16
Device 4
(management
VLAN 16)
VLAN 62
Device 5 (management VLAN 62)
VLAN trunk 4, 62
Device 7 (management VLAN 4)
VLAN 62
Device 9 (management VLAN 62)
VLAN 9
Device 6 (management VLAN 9)
VLAN 9
Device 8 (management VLAN 9)
VLAN 4
Device 10 (management VLAN 4)
101323
Discovery of Candidates and Members Through Routed Ports
If the cluster command switch has a routed port (RP) configured, it discovers only candidate and cluster member switches in the same VLAN as the routed port.
The Layer 3 cluster command switch in Figure 5 can discover the switches in VLANs 9 and 62 but not the switch in VLAN 4. If the routed port path between the cluster command switch and cluster member switch 7 is lost, connectivity with cluster member switch 7 is maintained because of the redundant path through VLAN 9.
Cisco IOS Release 12.2(25)SEC
25
