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Key Technical Specifications
- Part Number: OS10K-XNI-U16E
- Ordering Code: 903139-90
- Platform: OmniSwitch 10K
- Port Count: 16
- Port Type: Unpopulated 10G SFP+ ports
- Card Class: Standard interface card
- MPLS Support: No
- Policy Table Support: Does not support the larger L2, L3, and ACL tables
- Use Case: High-density 10G Ethernet access for OS10K chassis
- Compatibility: Verify exact chassis and software release before ordering
Product Introduction
Alcatel Lucent OS10K-XNI-U16E 903139-90 is an OmniSwitch 10K network interface card with 16 unpopulated 10G SFP+ ports. It is a standard interface card for OS10K chassis and is not the enhanced MPLS-capable version.
Buyers usually choose this card when they need dense 10G port expansion without overpaying for features they will not use. The key is matching the chassis and software expectations, since this card is intentionally limited compared with higher-tier OS10K interface modules.
- OS10K-XNI-U16E 903139-90
- OS10K-XNI-U16E 903139-90
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Card is not detected | Bad seating, unsupported chassis, or power issue | ✅ High | Reseat the card and verify chassis compatibility | Confirm OS10K support before replacement |
| Ports stay down after SFP install | Wrong optic type or missing module | ✅ High | Check that approved 10G SFP+ optics are installed | Install compatible optics and retest |
| Link flaps under load | Fiber issue, optic mismatch, or dirty connectors | ✅ High | Swap fiber, clean connectors, use known-good SFP+ | Eliminate optics before replacing the card |
| MPLS feature missing | Standard card limitation | ✅ High | Check card class in system inventory | This model does not provide MPLS support |
| L2/L3/ACL table limits hit early | Standard table size, not enhanced | ✅ High | Review policy table utilization in CLI | Use the enhanced module if larger tables are required |
| No traffic but link up | VLAN or service configuration issue | ❌ Low | Check switch configuration and forwarding state | Verify network config before condemning hardware |
If you are stuck, contact technical support with photos and diagnostic logs.
Frequently Asked Questions
Q: What is the Alcatel Lucent OS10K-XNI-U16E 903139-90?
A: It is a 16-port 10G SFP+ network interface card for the OmniSwitch 10K platform. The 903139-90 code is the ordering number tied to that module.
Q: Does it support MPLS?
A: No. This is the standard interface card, and the published specs say it does not support MPLS or the larger L2, L3, and ACL tables.
Q: Are the ports populated with transceivers?
A: No. The card includes 16 unpopulated 10G SFP+ ports, so you still need the correct optics.
Q: Is this the same as the enhanced OS10K line card?
A: No. The enhanced versions are different cards with different feature support. Do not assume interchangeability just because the chassis family is the same.
Q: Can I use any 10G SFP+ optic?
A: Not safely. You need optics that are approved for the OmniSwitch 10K software and hardware combination. Wrong optics are a common cause of link failure.
Q: Why is this card cheaper than a new factory unit?
A: In the secondary market, it is often surplus or refurbished stock pulled from decommissioned systems. That cuts cost, but you should still verify condition and test status.
Q: What should I confirm before ordering?
A: Match the exact ordering code, chassis model, software release, and whether you need standard or enhanced feature support. That avoids most compatibility mistakes.
