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Memory Allocation Exception in Device Disabled Error output

Large systems with multiple CPU's and many interfaces configured may not initialize the configured interfaces.

Issue ID: I95-54838
Last Updated: 2024-06-25
Introduced in SSR Version: 6.2.3

Problem

Large systems with multiple CPU's and many interfaces configured may not initialize the configured interfaces. A large system in this context is one with a core count greater than 30, and more than 10 interfaces. These systems may not initialize the configured interfaces, resulting in a MemoryAllocationException in the Device Disabled Error Reason section of the show device-interface detail command output.

Currently known systems exhibiting this issue are the SSR1500, Dell 7515, and AWS c5.18xlarge, running SSR software version 6.2.3 or greater. Currently deployed SSR1500's running earlier versions of software will experience this issue when they are upgraded to version 6.2.3 or greater.

This issue is under investigation and will be resolved in a future release.

Release Notes

Severity

Details

The potential impact of a software defect if encountered. Severity levels are:

  • Critical: Could severely affect service, capacity/traffic, and maintenance capabilities. May have a prolonged impact to the entire system.
  • Major: Could seriously affect system operation, maintenance, administration and related tasks.
  • Minor: Would not significantly impair the functioning or affect service.

Major

Status

Open

Resolved In

Product

AWS SSR Third-party

Functional Area

Interface Binding

Workaround

Details

Juniper may provide a method to temporarily circumvent a problem; workarounds do not exist for all issues.

  • SSR1500: Configure 8 or fewer interfaces.
  • Dell R7515: With hugepages of 31G, configure no more than 4 interfaces. With hugepages of 58G, configure no more that 8 interfaces.
  • AWS c5.18xlarge: Systematically reduce the number of interaces until the remaining interfaces become active.