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- Att cisco receiver upgrade software download#
- Att cisco receiver upgrade software upgrade#
- Att cisco receiver upgrade upgrade#
Once an IP address is obtained, the iNode will attempt a software download operation. If the iNode is operating in a dual stack environment, IPv6 will be given priority IPv4 address or an IPv6 address is obtained. When the iNode boots, it attempts to obtain its IP address and DHCP options once a minute using a CRON job until either an
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The iNode supports IPv4 and IPv6 using the IPv6 SLACC or Stateful address modes. Identifier used by the iNode, the IP address of the TFTP server and the name of the DOCSIS configuration file to be downloadedįrom the TFTP server. The iNode is unable to boot from a new image after 7 attempts, it falls back to execute the last known working image.Īs the iNode comes up and sets up the root file system, it contacts the DHCP server to obtain its IP address, the vendor class The U-boot keeps track of the number of failures and when In the event of a catastrophic failure during the download process. This provides the capability to fall back to the last known good image The iNode supports the storage of up to two images. IPv4/IPv6 TFTP server is configured to provide a DOCSIS TLV configuration file and any software images to be downloaded toĬapability to create a DOCSIS TLV Configuration file. iNode SW Download Sequence IPv6ĭHCP server is configured to provide the iNode with an IPv4 and Options 60, 66, 67 and/or an IPv6 IP address with Options This is a “fall-back” feature to ensure the iNode is able to boot correctly and recover from a defective image.įigure 1. If the iNode is in a cyclic reset condition where the “boot counter” reaches a limit of 7 bootĪttempts the U-Boot module will revert the Secondary partition to a Primary partition state and mark the current partitionĪs defective. The “boot counter” is reset when a successful Software Download
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If for any reason the download fails, the current working image continues to executeĮach time the iNode boots a “boot counter” is incremented. Following validation, and only if the specified image does not already exist on the iNode, Prior to release, the monolithic image is signed with the Cisco digital signature.
Att cisco receiver upgrade upgrade#
The downloaded image is a monolithic image that contains the Linux Kernel and the Root File System needed to upgrade the iNode. The Primary partition and the iNode is rebooted into that partition. Into the partition marked as Secondary if the upgrade image name in the inode.cfg file is not currently loaded in either partition.Īfter the download operation has successfully completed, the partition containing the desired software image is marked as The iNode contains two memory partitions for holding a Primary and Secondary software image.
Att cisco receiver upgrade software upgrade#
With either method, upon boot-up a software upgrade is started. The second method includes a planned upgrade of one or more iNodes, using the SNMP SCTE-HMS-COMMON-MIBĬommonReset to initiate a warm reboot. The first method involves an automatic software There are two ways to trigger the software upgrade. The methods used for triggering and transferring software images are initiated and completed in a manner similar to a cable This chapter describes the iNode software upgrade process.