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ISIS Globally Disables When Base Unit Removed From Stack

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TitleISIS Globally Disables When Base Unit Removed From Stack
Symptoms
  • ISIS (Intermediate System to Intermediate System) configured on port 1/48
  • ISIS adjacency up on port 1/48
  • Physical connection moved from port 1/48 to 2/23
  • ISIS adjacency up on port 2/23
  • Base unit (switch 1) removed from stack
  • ISIS adjacency goes down on port 2/23
Environment
  • ERS 4800 stack
  • Release 5.9.4
Cause
ISIS protocol became globally disabled
Resolution
Re-enable ISIS protocol globally
  1. Type enable
  2. Type config term
  3. Type router isis enable
Additional notes

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