PRJ: ISE 3.2 Patch 9 Upgrade

Project Summary

Project

ISE 3.2 Patch 9 Upgrade

Priority

P2

Status

Pending

TAC Recommendation

Yes - addresses known replication issues

Related TAC Case

TAC-2026-03-chla-8021x-auth-failures

Background

During TAC engagement for 802.1X auth failures, TAC recommended upgrading to ISE 3.2 Patch 9 to address known replication and logging issues.

Current Version: ISE 3.2 Patch 6 Target Version: ISE 3.2 Patch 9

Pre-Upgrade Checklist

  • Backup all nodes (repository backup)

  • Verify SmartNet contract validity

  • Download patch bundle

  • Review release notes for known issues

  • Schedule maintenance window

  • Notify stakeholders

  • Verify disk space on all nodes

Upgrade Order

Order Node Notes

1

Secondary PAN (span.ise.chla.org)

Failover point for primary

2

Primary MNT (pmnt.ise.chla.org)

Recent RabbitMQ issue

3

Secondary MNT (smnt.ise.chla.org)

MNT redundancy

4

PSN-1 through PSN-4

One at a time, monitor auth

5

Primary PAN (ppan.ise.chla.org)

Last to maintain control

Post-Upgrade Validation

# Verify all nodes running same patch level
netapi ise api info

# Check deployment health
netapi ise -f json api-call openapi GET "/api/v1/deployment/node" | jq -r '.response[] | [.hostname, .nodeStatus] | @tsv'

# Verify replication
# GUI: Administration > System > Deployment

# Test authentication
netapi ise -f json mnt sessions | jq 'length'

Risks

Risk Mitigation

Service interruption during PSN upgrade

Upgrade one PSN at a time, monitor auth

Patch failure requiring rollback

Full backup before upgrade

Compatibility issues with existing config

Review release notes, TAC consultation

Stakeholders

  • Cisco TAC - Upgrade guidance

  • Sarah Clizer (CISO) - Change approval

  • InfoSec Engineering - Execution