Summary
7720 Universal Switch - ZTP does not work after DHCP times out when using the out-of-band (OOB) management Ethernet port and the pre-installed image 32.4.1.5.
Background
The 7720 switches are currently shipped with a pre-GA software image - Switch Engine version 32.4.1.5. This version of software will not support the Zero Touch Provisioning (ZTP) functionality because of defect ID EXOS-33510. The problem is due to the DHCP request timing out during the DHCP discovery process, resulting in ZTP not being initiated.
Products Affected
7720 Universal switches
Software Affected
EXOS/Switch Engine 32.4.1.5
Symptoms
When starting a 7720 Universal switch using an out-band management (OOB) port and auto-configuration DHCP times out and an Automatic Private IP Address of 169.254.x.x is assigned and ZTP isn’t initiated.
Workaround (solution below)
- Remove and reinsert the cable to the OOB mgmt port after 10 seconds:
| MGMT Link |
Front Panel Link |
Action required after booting up switch (SYS led solid blinking) |
MGMT DHCP IP |
XIQ-SE onboarding |
| Connected |
None |
Physically disconnect and reconnect mgmt link after 10 sec |
successful |
successful |
OR
- Connect an in-band Ethernet port in a manner that results in a port link up:
| MGMT Link |
Front Panel Link |
Action required after booting up switch (SYS led solid blinking) |
MGMT DHCP IP |
XIQ-SE onboarding |
| Connected |
Link is up/operational |
No Action Required |
successful |
successful |
Solution
Upgrade to EXOS/Switch Engine 32.4.1.10
Please see the full Field Notice here for updates and more details.
