Lenovo ThinkAgile CP Hardware Part Replacement And Component Maintenance Procedures page 133

Step 4. Restart the DHCP server on the primary interconnect switch:
> > s s u u d d o o s s e e r r v v i i c c e e i i s s c c - - d d h h c c p p - - s s e e r r v v e e r r s s t t o o p p
> > s s u u d d o o s s e e r r v v i i c c e e i i s s c c - - d d h h c c p p - - s s e e r r v v e e r r s s t t a a r r t t
.
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Chapter 5 Part replacement and maintenance procedures