Chapter 13: CAM Sparing
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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Create CAM Spare Groups
Automatic failback can reduce exposure to traffic loss because the spare CAM is restored to the standby state as soon as
the faulty CAM comes back up. Manual allows you to defer the failback to a more convenient time, such as a maintenance
window.
1.
Provision the 24U CAM slots:
configure slot 0 type 24UCAM
configure slot 1 type 24UCAM
configure slot 2 type 24UCAM
configure slot 3 type 24UCAM
configure slot 4 type 24UCAM
configure slot 5 type 24UCAM
configure slot 6 type 24UCAM
configure slot 7 type 24UCAM
configure slot 8 type 24UCAM
2.
Configure spare-group 0 for the 24U CAMs:
configure slot 0 spare-group 0 manual
configure slot 1 spare-group 0
configure slot 2 spare-group 0
configure slot 3 spare-group 0
configure slot 4 spare-group 0
configure slot 5 spare-group 0
configure slot 6 spare-group 0
configure slot 7 spare-group 0
configure slot 8 spare-group 0
3.
Provision the XD slots. In this example we are provisioning the slots for 32D CAMs and for Annex B:
configure slot 9 type 32DCAM-B
configure slot 10 type 32DCAM-B
configure slot 11 type 32DCAM-B
configure slot 12 type 32DCAM-B
configure slot 13 type 32DCAM-B
configure slot 14 type 32DCAM-B
configure slot 15 type 32DCAM-B
4.
Configure spare-group 15 for the XD CAMs. The spare-group leader is found in the highest-numbered slot of the 32D
sparegroup:
configure slot 15 spare-group 15 manual
configure slot 9 spare-group 15
configure slot 10 spare-group 15
configure slot 11 spare-group 15