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Active System Manager Release 8.1.1 User’s Guide

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Chain booting issue occurs while booting microkernel in a multi-hop DHCP environment

The chain booting error occurs if the DHCP server is configured in a different subnet or network or connected to a different switch.

In such scenarios, the DHCP network is tagged.

To resolve this issue, in switch configuration, modify the native VLAN of server or computer facing ports to PXE VLAN.

Sample native VLAN configuration in Dell PowerConnect switch:

interface Gi1/0/2

spanning-tree portfast

switchport mode general

switchport general pvid 3000

switchport general allowed

vlan add 3000

switchport general allowed

vlan add 20,30,40 tagged

exit

In the above example:

  • 3000: Indicates Native PXE VLAN

  • 20,30,40: Indicates Management or vMotion or ISCSI

In case of production environments with large networks, routers may be configured with IP Helper Addresses to point to a DHCP on another network.

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