Isolating IGP (OSPF & ISIS) traffic by increasing Metric in IOS-XR routers

@OSPF

Set the max-metric in OSPF and OSPFv3 in IOS-XR devices:

RP/0/RSP0/CPU0:IOS-XR(config)#router ospf 65555
 max-metric router-lsa external-lsa
 !
router ospfv3 65555
 stub-router router-lsa v6-bit
  always

Save the changes:
RP/0/RSP0/CPU0:IOS-XR(config)#commit

Verify:

show ospf database

@ISIS

Increase ISIS metric

router isis XXXX

set-overload-bit

Save the changes:
RP/0/RSP0/CPU0:IOS-XR(config)#commit

Verify:

show isis database